Functional sofa frame with adjustable cushion length

Abstract

The utility model relates to the technical field of sofa frames, in particular to a cushion-length-adjustable functional sofa frame which comprises two bottom transverse pipes and a top frame, side pieces are connected between the two ends of the two bottom transverse pipes respectively, stabilizing pieces are installed on the upper surfaces of the side pieces, steel rails are installed on the upper portions of the stabilizing pieces, and side wings are installed on the two sides of the steel rails respectively. A butt joint piece is slidably installed on the upper portion of the steel rail, and the upper portions of the two ends of the butt joint piece are connected with supporting pipes respectively. According to the functional sofa frame with the cushion length adjustable, in the transportation and carrying process, a motor drives a sliding block to move, the whole top frame is driven to move relative to a bottom transverse pipe, so that the top frame coincides with the bottom transverse pipe and a side piece frame, the overall length and size of a sofa can be effectively reduced, guide beads are clamped from the two sides through limiting pieces and check blocks, and the cushion length is adjusted; the stability in the moving process is improved, and meanwhile, the problems of difficult movement and the like caused by the weight of the sofa during adjustment can be effectively reduced through rotation of the balls.

Description

Technical Field

[0001] This utility model relates to the field of sofa frame technology, specifically a functional sofa frame with adjustable cushion length. Background Technology

[0002] The sofa frame is the core internal support structure of the sofa. The structure and quality of the sofa frame directly determine the durability and comfort of the sofa. However, the sofa frame of larger sofas is usually heavy and long. It needs to be disassembled during transportation and delivery and then reassembled during installation. This is not only cumbersome, but also makes it impossible to adjust the length of the sofa according to the needs of the indoor environment.

[0003] To address the aforementioned issues, we have made improvements by proposing a functional sofa frame with adjustable cushion length. Utility Model Content

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

[0005] This utility model provides a functional sofa frame with adjustable cushion length, including a bottom horizontal tube and a top frame. Two bottom horizontal tubes are provided, with side panels connected to both ends of each tube. A stabilizing element is mounted on the upper surface of each side panel, and a steel rail is mounted on the upper part of the stabilizing element. Side wings are mounted on both sides of the steel rail, and several guide beads are evenly distributed on the side wings. A connecting element is slidably mounted on the upper part of the steel rail, and support tubes are connected to the upper parts of both ends of the connecting element. The top of the support tube is connected to the bottom of the top frame. A middle horizontal tube is connected to the middle of the two side panels, and a motor is mounted on the middle horizontal tube. A guide rail is installed between the middle horizontal tube and one of the bottom horizontal tubes.

[0006] As a preferred technical solution of this utility model, the stabilizer is provided with inwardly curved arc-shaped limiting members on both sides, and the surface of the side wing is provided with a plurality of limiting holes evenly distributed. The plurality of guide beads are respectively housed between the limiting holes and the limiting members, and the maximum outer diameter of the guide beads is smaller than the inner diameter of the limiting holes.

[0007] As a preferred technical solution of this utility model, the lower parts of both sides of the docking member are respectively equipped with outwardly curved arc-shaped stops, the guide bead is rotatable relative to the limiting hole, the two sides of the guide bead are in contact with the limiting member and the stops respectively, and the surface of the guide bead is coated with grease.

[0008] As a preferred technical solution of this utility model, the stabilizer and the side plate are fixedly connected by bolts, the rail and the stabilizer are fixedly connected by bolts, the bottom of the docking member is equipped with a docking cavity, the upper parts of both ends of the docking member are respectively provided with mounting plates, the mounting plates are threadedly connected to the docking cavity by bolts, and the support tube is welded to the upper part of the mounting plate.

[0009] As a preferred technical solution of this utility model, a motor frame is installed in the middle of the middle horizontal tube, the motor is fixedly installed on the motor frame, the two ends of the guide rail are welded to the motor frame and the bottom horizontal tube respectively, a slider is sleeved on the outer surface of the guide rail, the slider is slidably connected to the guide rail, and a threaded rod is rotatably installed inside the guide rail, the slider is threadedly connected to the threaded rod.

[0010] As a preferred technical solution of this utility model, the rotating shaft of the motor and the end of the threaded rod on the side near the motor are respectively coaxially fixedly connected to bevel gears, the two bevel gears mesh with each other, and the bottom of the top frame is welded to the slider.

[0011] In a preferred embodiment of this utility model, the length of the rail is the same as the length of the side plate, and the length of the connecting piece is half the length of the side plate.

[0012] The beneficial effects of this utility model are as follows: This type of functional sofa frame with adjustable cushion length moves a slider driven by a motor during transportation and handling, causing the top frame to move relative to the bottom horizontal tube, so that the top frame, bottom horizontal tube, and side frame overlap. This effectively reduces the overall length and size of the sofa. After installation, the position of the top frame can be adjusted according to space requirements to adjust the cushion length. During this process, the guide balls rotate relative to each other inside the limiting holes, and the limiting parts and stops clamp the guide balls from both sides, improving stability during movement and reducing installation difficulty. At the same time, the rotation of the ball bearings effectively reduces the difficulty of movement caused by the weight of the sofa during adjustment. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an enlarged structural diagram of point A of this utility model;

[0016] Figure 3 This is a partial front view schematic diagram of the steel rail structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the bottom horizontal tube and side plate of this utility model;

[0018] In the diagram: 1. Bottom horizontal tube; 2. Top frame; 3. Support tube; 4. Connecting piece; 5. Rail; 6. Stabilizer; 7. Middle horizontal tube; 8. Guide rail; 9. Motor; 10. Slider; 11. Guide ball; 12. Motor frame; 13. Limiting piece; 14. Mounting plate; 15. Side plate; 16. Connecting cavity; 17. Side wing; 18. Limiting hole; 19. Stop block. Detailed Implementation

[0019] 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.

[0020] Example: Figure 1-4 As shown, a functional sofa frame with adjustable cushion length includes a bottom horizontal tube 1 and a top frame 2. There are two bottom horizontal tubes 1, and side panels 15 are connected between the two ends of the two bottom horizontal tubes 1. A stabilizing member 6 is installed on the upper surface of the side panel 15. A steel rail 5 is installed on the upper part of the stabilizing member 6. Side wings 17 are installed on both sides of the steel rail 5. A plurality of guide beads 11 are evenly arranged on the side wings 17. A connecting member 4 is slidably installed on the upper part of the steel rail 5. Support tubes 3 are connected to the upper parts of both ends of the connecting member 4. The top of the support tube 3 is connected to the bottom of the top frame 2. A middle horizontal tube 7 is connected to the middle of the two side panels 15. A motor 9 is installed on the middle horizontal tube 7. A guide rail 8 is installed between the middle horizontal tube 7 and one of the bottom horizontal tubes 1.

[0021] The stabilizer 6 has inwardly curved arc-shaped limiting members 13 installed on both sides. The surface of the side wing 17 is evenly provided with several limiting holes 18. Several guide beads 11 are respectively housed between the limiting holes 18 and the limiting members 13, and the maximum outer diameter of the guide beads 11 is smaller than the inner diameter of the limiting holes 18.

[0022] The lower sides of the docking part 4 are respectively equipped with outwardly curved arc-shaped stops 19. The guide bead 11 is rotatable relative to the limiting hole 18. The two sides of the guide bead 11 are in contact with the limiting part 13 and the stops 19 respectively. The surface of the guide bead 11 is coated with grease.

[0023] When the top frame 2 moves, the guide bead 11 rotates inside the limiting hole 18, reducing the friction between the limiting part 13 and the stop block 19 during movement, reducing the difficulty of moving the sofa frame due to its overall weight, and improving the stability of the sofa frame during length adjustment.

[0024] The stabilizer 6 is fixedly connected to the side plate 15 by bolts, the rail 5 is fixedly connected to the stabilizer 6 by bolts, the bottom of the docking part 4 is equipped with a docking cavity 16, and the upper part of both ends of the docking part 4 is respectively provided with mounting plates 14. The mounting plates 14 are threadedly connected to the docking cavity 16 by bolts, and the support tube 3 is welded to the upper part of the mounting plate 14.

[0025] A motor frame 12 is installed in the middle of the middle horizontal tube 7. The motor 9 is fixedly installed on the motor frame 12. The two ends of the guide rail 8 are welded to the motor frame 12 and the bottom horizontal tube 1 respectively. A slider 10 is sleeved on the outer surface of the guide rail 8. The slider 10 is slidably connected to the guide rail 8. A threaded rod is rotatably installed inside the guide rail 8. The slider 10 is threadedly connected to the threaded rod.

[0026] The rotating shaft of motor 9 and the end of the threaded rod on the side near motor 9 are respectively coaxially fixedly connected to bevel gears, the two bevel gears mesh with each other, and the bottom of the top frame 2 is welded to the slider 10.

[0027] Motor 9 drives the threaded rod to rotate via bevel gear, adjusting the position of slider 10 on guide rail 8, thereby driving the top frame 2 to move.

[0028] The length of the steel rail 5 is the same as the length of the side panel 15, and the length of the connecting piece 4 is half the length of the side panel 15. That is, the overall movable distance of the top frame 2 is half the length of the side panel 15, which improves the adaptability of the sofa frame to different spaces and reduces the difficulty of transportation and installation.

[0029] Working principle: This type of adjustable cushion length functional sofa frame, after transportation and placement, starts the motor 9. The motor 9 drives the threaded rod to rotate through the bevel gear, adjusting the slider 10 to the position of the guide rail 8, thereby driving the top frame 2 to move. The length of the connecting piece 4 is half the length of the side piece 15, that is, the overall movable distance of the top frame 2 is half the length of the side piece 15, which improves the adaptability of the sofa frame to different spaces. When the top frame 2 moves, the guide bead 11 rotates inside the limiting hole 18, reducing the friction of the limiting piece 13 and the stop 19 during the movement, reducing the difficulty of moving caused by the overall weight of the sofa frame, and improving the stability of the sofa frame during length adjustment.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing 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. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sofa frame with adjustable length of the seat, comprising a bottom cross tube (1) and a top frame (2), characterized in that, The bottom horizontal tube (1) is configured as two, and the two bottom horizontal tubes (1) are respectively connected to the two ends of the two bottom horizontal tubes (1). A stabilizing member (6) is installed on the upper surface of the side plate (15). A rail (5) is installed on the upper part of the stabilizing member (6). Side wings (17) are respectively installed on both sides of the rail (5). A number of guide beads (11) are evenly arranged on the side wings (17). A connecting member (4) is slidably installed on the upper part of the rail (5). A support tube (3) is respectively connected to the upper part of both ends of the connecting member (4). The top of the support tube (3) is connected to the bottom of the top frame (2). A middle horizontal tube (7) is connected to the middle of the two side plates (15). A motor (9) is installed on the middle horizontal tube (7). A guide rail (8) is installed between the middle horizontal tube (7) and one of the bottom horizontal tubes (1).

2. The functional sofa frame with adjustable length of the seat cushion according to claim 1, characterized in that The stabilizer (6) is equipped with inwardly curved arc-shaped limiting members (13) on both sides. The surface of the side wing (17) is evenly provided with a number of limiting holes (18). A number of guide beads (11) are respectively housed between the limiting holes (18) and the limiting members (13), and the maximum outer diameter of the guide beads (11) is smaller than the inner diameter of the limiting holes (18).

3. The functional sofa frame with adjustable length of the seat cushion according to claim 2, characterized in that The lower sides of the docking member (4) are respectively equipped with outwardly curved arc-shaped stops (19), the guide bead (11) is rotatable relative to the limiting hole (18), the two sides of the guide bead (11) are in contact with the limiting member (13) and the stops (19) respectively, and the surface of the guide bead (11) is coated with grease.

4. The functional sofa frame with adjustable length of the seat cushion according to claim 1, characterized in that, The stabilizer (6) and the side plate (15) are fixedly connected by bolts. The rail (5) and the stabilizer (6) are fixedly connected by bolts. The bottom of the docking part (4) is equipped with a docking cavity (16). The upper part of both ends of the docking part (4) is respectively provided with mounting plates (14). The mounting plates (14) are threadedly connected to the docking cavity (16) by bolts. The support tube (3) is welded to the upper part of the mounting plate (14).

5. The functional sofa frame with adjustable length of the seat cushion according to claim 1, characterized in that, A motor frame (12) is installed in the middle of the middle horizontal tube (7), and the motor (9) is fixedly installed on the motor frame (12). The two ends of the guide rail (8) are welded to the motor frame (12) and the bottom horizontal tube (1) respectively. A slider (10) is sleeved on the outer surface of the guide rail (8). The slider (10) is slidably connected to the guide rail (8). A threaded rod is rotatably installed inside the guide rail (8), and the slider (10) is threadedly connected to the threaded rod.

6. A functional sofa frame with adjustable cushion length according to claim 5, characterized in that, The rotating shaft of the motor (9) and the end of the threaded rod on the side near the motor (9) are respectively coaxially fixedly connected to bevel gears, and the two bevel gears mesh with each other. The bottom of the top frame (2) is welded to the slider (10).

7. The functional sofa frame with adjustable seat cushion length according to claim 1, characterized in that, The length of the rail (5) is the same as the length of the side piece (15), and the length of the connecting piece (4) is half the length of the side piece (15).

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