Angle-adjustable sofa frame

Abstract

The utility model relates to an angle-adjustable sofa frame which comprises a seat frame, a front foot frame and a rear foot frame, the front foot frame and the rear foot frame are hinged below the seat frame, an adjusting assembly capable of adjusting the front foot frame and the rear foot frame is arranged below the seat frame and comprises an adjusting cylinder rotationally arranged below the seat frame, and adjusting rods are arranged on the front foot frame and the rear foot frame. The adjusting rod is in threaded connection with the adjusting cylinder, a gear is arranged on the adjusting cylinder, a rack meshed with the gear is arranged on the lower end face of the seat frame, and the adjusting cylinder drives the front foot stool and the rear foot stool to be opened simultaneously through threaded connection while driving the seat frame to rise by driving the gear and the rack to be meshed, so that stability of the seat frame is guaranteed. The angles of the front leg and the rear leg are fixed, so that the chair cannot be suitable for various occasions.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a sofa frame with adjustable angles. Background Art

[0002] The sofa frame is an important part of the sofa. The quality of the sofa frame directly affects the quality of the sofa. Most of the sofa frame materials are plates. Straight plates are cut with a saw, while small enterprises use circular saws and band saws to cut curved plates. The sofa frame can be made of medium-density fiberboard, because medium-density fiberboard has the advantages of large format and high yield, which is particularly significant for curved parts.

[0003] A Chinese utility model patent with application publication number CN217309659U discloses a sofa frame, including a support frame arranged symmetrically on the left and right and a support connection part connected between the two support frames, the support frame includes a front support leg, a rear support leg and a backrest support plate, all of which are arranged in an L shape, a flange portion is provided at one end of the upper side of the front support leg, a groove portion is provided at one end of the lower side of the backrest support plate, a side wall of the rear support leg is attached to the welding through hole and is welded to the rear support leg through the welding through hole; the structure is simple, the installation is convenient, the independent production and processing are convenient, it is conducive to development and design, and the design is improved; the product is beautiful, and the assembly and positioning are extremely convenient, the components are few, and the body is small, which greatly reduces the occupied space and is convenient for packaging, transportation or handling.

[0004] However, the inventors found that the device has the following problems: the height of the sofa frame is fixed, and the angles of the front legs and the rear legs are fixed, so it cannot be applied to various occasions. Utility Model Content

[0005] The utility model aims to solve the deficiencies in the prior art and invents an angle-adjustable sofa frame, comprising a seat frame, a front foot frame, and a rear foot frame. An adjusting cylinder is rotatably arranged under the seat frame, and adjusting rods threadedly connected to the adjusting cylinder are arranged on the front foot frame and the rear foot frame. A rack is arranged under the seat frame, and a gear meshing with the rack is arranged on the adjusting cylinder. By rotating the adjusting cylinder, the seat frame is driven to rise through the meshing of the gear and the rack, and the adjusting rod is driven to move to both sides through the meshing of the threads, so as to adjust the angles of the front foot frame and the rear foot frame to ensure the stability of the sofa frame, thereby solving the problem that the height of the sofa frame is fixed and the angles of the front foot and the rear foot are fixed, and the sofa frame cannot be applied to various occasions.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: An adjustable-angle sofa frame, comprising a seat frame, a front foot frame and a rear foot frame hinged below the seat frame. An adjusting assembly for adjusting the front foot frame and the rear foot frame is provided below the seat frame. The adjusting assembly includes an adjusting cylinder rotatably provided below the seat frame. Adjusting rods are provided on both the front foot frame and the rear foot frame. The adjusting rods are threadedly connected to the adjusting cylinder. A gear is provided on the adjusting cylinder. A rack meshing with the gear is provided on the lower end face of the seat frame. When the adjusting cylinder drives the gear and the rack to mesh to drive the seat frame to rise, the front foot frame and the rear foot frame are simultaneously spread open through threaded connection to ensure the stability of the seat frame.

[0007] As a preference, a rotating groove is provided at the lower end of the seat frame, and a lifting rod is rotatably provided in the rotating groove. The front foot frame and the rear foot frame are slidably provided on the lifting rod.

[0008] As a preference, hinge seats are provided on both the front foot frame and the rear foot frame. The adjusting rods are hingedly provided on the hinge seats. Threaded sections are provided on the adjusting rods. The threaded sections of the adjusting rods on the front foot frame and the rear foot frame have opposite thread rotation directions.

[0009] As a preference, a backrest frame is welded to the side of the seat frame, and the backrest frame is inclined at an angle with the seat frame.

[0010] As a preference, a storage box is provided on the lower end face of the seat frame. The adjusting cylinder is provided in the storage box. A through groove is provided on the outside of the storage box. A sliding groove for the adjusting rod to slide is provided on the side of the storage box.

[0011] As a preference, anti-slip seats are rotatably provided at the lower ends of both the front foot frame and the rear foot frame.

[0012] As a preference, the surface of the adjusting cylinder is made of a rough material.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. By providing a rack at the lower end of the seat frame, an adjusting cylinder is rotatably provided between the front foot frame and the rear foot frame, and a gear meshing with the rack is provided on the adjusting cylinder. By rotating the adjusting cylinder, the rack and the gear are meshed, and the rack drives the seat frame to rise, thereby increasing the height of the sofa frame and enabling it to adapt to different occasions.

[0015] 2. A lifting rod is hinged at the lower end of the seat frame. A front footrest and a rear footrest are slidably arranged on the lifting rod. An adjusting rod is hinged on the front footrest and the rear footrest. An adjusting cylinder is threadedly connected to the adjusting rod. By rotating the adjusting cylinder, the adjusting rods on both sides are driven to extend outwards through threaded connection, thereby driving the front footrest and the rear footrest to rotate towards both sides, thereby increasing the opening angle and keeping the base stable after it is lifted.

[0016] In summary, the device has the advantages of adjustable height and angle of the sofa frame and good stability, and is particularly suitable for the furniture technology field. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a structural schematic diagram of a sofa frame with adjustable angle;

[0019] Figure 2 It is a partial structural schematic diagram of a sofa frame with adjustable angle;

[0020] Figure 3 It is a cross-sectional view of a sofa frame with adjustable angle;

[0021] Figure 4 It is a structural schematic diagram of a placement box of a sofa frame with adjustable angle;

[0022] Figure 5 It is Figure 2 The partial enlarged view at A in;

[0023] Figure 6 It is Figure 3 The partial enlarged view at B in;

[0024] Figure 7 It is a working state diagram of a sofa frame with adjustable angle.

[0025] Reference Signs in the Drawings: 1. Seat Frame; 2. Front Footrest; 3. Rear Footrest; 4. Adjusting Assembly; 5. Adjusting Cylinder; 6. Adjusting Rod; 7. Gear; 8. Rack; 21. Rotating Groove; 22. Lifting Rod; 31. Hinge Seat; 32. Threaded Section; 41. Backrest Frame; 51. Placement Box; 52. Through Slot; 53. Slide Slot; 61. Anti-Slip Seat. Detailed Embodiment

[0026] The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the drawings.

[0027] Example 1

[0028] As Figures 1 to 7 shown, an adjustable-angle sofa frame includes a seat frame 1, a front leg frame 2 and a rear leg frame 3 hinged below the seat frame 1. An adjustment assembly 4 for adjusting the front leg frame 2 and the rear leg frame 3 is provided below the seat frame 1. The adjustment assembly 4 includes an adjustment cylinder 5 rotatably provided below the seat frame 1. Adjustment rods 6 are provided on both the front leg frame 2 and the rear leg frame 3. The adjustment rods 6 are threadedly connected to the adjustment cylinder 5. A gear 7 is provided on the adjustment cylinder 5. A rack 8 meshing with the gear 7 is provided on the lower end face of the seat frame 1. When the adjustment cylinder 5 drives the gear 7 and the rack 8 to mesh to drive the seat frame 1 to rise, the front leg frame 2 and the rear leg frame 3 are simultaneously spread open through threaded connection to ensure the stability of the seat frame 1.

[0029] It is worth mentioning here that by rotating the adjustment cylinder 5, the gear 7 is driven to rise through the rack 8, thereby driving the seat frame 1 to rise, thereby changing the height of the sofa frame. While the adjustment cylinder 5 rotates, the adjustment rods 6 connected by threads move to both sides, thereby driving the front leg frame 2 and the rear leg frame 3 to rotate to both sides through the adjustment rods 6, thereby changing the included angle of the support and increasing the stability.

[0030] As Figure 6 shown, a rotation groove 21 is formed at the lower end of the seat frame 1. A lifting rod 22 is rotatably provided in the rotation groove 21. The front leg frame 2 and the rear leg frame 3 are slidably provided on the lifting rod 22.

[0031] As Figure 5 、 Figure 6 shown, hinge seats 31 are provided on both the front leg frame 2 and the rear leg frame 3. The adjustment rod 6 is hinged to the hinge seat 31. A threaded section 32 is provided on the adjustment rod 6. The threaded section 32 is meshed and provided in the adjustment cylinder 5. The threaded sections 32 of the adjustment rods 6 on the front leg frame 2 and the rear leg frame 3 have opposite thread directions.

[0032] It is worth mentioning here that by setting the threaded sections 32 of the adjustment rods 6 on the front leg frame 2 and the rear leg frame 3 to have opposite thread directions, the adjustment rods 6 on both sides can be simultaneously moved outwards after rotating the adjustment cylinder 5.

[0033] As Figure 1 shown, a backrest frame 41 is welded on the side of the seat frame 1. The backrest frame 41 is inclined at 120° to the seat frame 1.

[0034] As Figure 4As shown, a placement box 51 is provided on the lower end surface of the base frame 1. The adjustment cylinder 5 is arranged inside the placement box 51. A through groove 52 is provided on the outside of the placement box 51, and a sliding groove 53 for the adjustment rod 6 to slide is provided on the side surface of the placement box 51.

[0035] It is worth mentioning here that by providing the placement box 51 at the lower end of the base 1, the gear 7 and the rack 8 can be prevented from being exposed outside and adhered by some impurities.

[0036] As Figure 3 shown, anti-slip seats 61 are rotatably provided at the lower ends of the front foot frame 2 and the rear foot frame 3.

[0037] It is worth mentioning again that by rotatably providing anti-slip seats 61 at the lower ends of both the front foot frame 2 and the rear foot frame 3, the anti-slip seats 61 can stably support on the ground while the front foot frame 2 and the rear foot frame 3 adjust the angles.

[0038] The surface of the adjustment cylinder 5 is made of a rough material.

[0039] It is worth mentioning here that by making the surface of the adjustment cylinder 5 of a rough material, it is convenient for people to easily rotate the adjustment cylinder 5.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front and back", "left and right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0041] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation to the number.

[0042] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art under the technical hint of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An adjustable-angle sofa frame, comprising a seat frame (1), a front footrest (2) and a rear footrest (3) hinged below the seat frame (1), characterized in that, A regulating assembly (4) for adjusting the front footrest (2) and the rear footrest (3) is provided below the seat frame (1). The regulating assembly (4) includes a regulating cylinder (5) rotatably arranged below the seat frame (1). Adjusting rods (6) are arranged on both the front footrest (2) and the rear footrest (3). The adjusting rods (6) are threadedly connected to the regulating cylinder (5). A gear (7) is arranged on the regulating cylinder (5). A rack (8) meshing with the gear (7) is arranged on the lower end face of the seat frame (1). When the regulating cylinder (5) drives the seat frame (1) to rise by driving the gear (7) and the rack (8) to mesh, the front footrest (2) and the rear footrest (3) are simultaneously spread open through threaded connection, thereby ensuring the stability of the seat frame (1).

2. The adjustable-angle sofa rack according to claim 1, wherein A rotating groove (21) is formed at the lower end part of the seat frame (1). A lifting rod (22) is rotatably arranged in the rotating groove (21). The front footrest (2) and the rear footrest (3) are slidably arranged on the lifting rod (22).

3. The adjustable-angle sofa rack according to claim 1, characterized in that Hinge seats (31) are arranged on both the front footrest (2) and the rear footrest (3). The adjusting rod (6) is hingedly arranged on the hinge seat (31). A threaded section (32) is arranged on the adjusting rod (6). The threaded section (32) is meshed and arranged in the regulating cylinder (5). The threaded sections (32) of the adjusting rods (6) on the front footrest (2) and the rear footrest (3) have opposite thread rotation directions.

4. The adjustable-angle sofa rack according to claim 1, characterized in that, A backrest frame (41) is welded on the side of the seat frame (1). The backrest frame (41) is inclined at 120° to the seat frame (1).

5. The adjustable-angle sofa rack according to claim 1, characterized in that, A storage box (51) is arranged on the lower end face of the seat frame (1). The regulating cylinder (5) is arranged in the storage box (51). A through groove (52) is arranged on the outside of the storage box (51). A sliding groove (53) for the adjusting rod (6) to slide is arranged on the side of the storage box (51).

6. The adjustable-angle sofa rack according to claim 1, wherein Anti-slip seats (61) are rotatably arranged at the lower end parts of both the front footrest (2) and the rear footrest (3).

7. The adjustable-angle sofa rack according to claim 1, characterized in that, The surface of the regulating cylinder (5) is made of a rough material.

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