Adjustable sofa with telescopic bracket

Abstract

The adjustable sofa comprises a base, a cushion assembly, a backrest assembly, a telescopic support assembly and an angle adjusting mechanism, and the telescopic support assembly comprises a multi-section nested guide rail structure and a locking buckle mechanism and is used for achieving telescopic adjustment of a cushion and a backrest in the longitudinal direction. The angle adjusting mechanism is arranged between the backrest assembly and the base, a fluted disc locking structure is matched with an elastic spring pin for positioning, and multi-gear angle rapid adjusting and positioning are supported. A foldable leg supporting module is further arranged on the front portion of the cushion assembly, is overturned and unfolded through a hinge structure and is matched with the telescopic support to form an extension supporting face. The structure has structural flexibility, angle adjustability and storage portability, is suitable for the design of adjustable sofas with various body types and use scenes, and is particularly suitable for the requirements of small apartments and multifunctional furniture.

Description

Technical Field

[0001] This utility model relates to the field of furniture structure, and in particular to an adjustable sofa with a telescopic support. Background Technology

[0002] Most existing adjustable sofas feature fixed-angle backrests and non-extendable seat cushions, offering only basic comfort adjustments through backrest tilt angle changes. However, in practical use, due to differences in height, leg length, and weight among users, fixed backrests or non-extendable seats often fail to meet individual support needs. Furthermore, while some complex electric sofas offer extension and angle adjustment functions, they are expensive, difficult to maintain, and unsuitable for widespread adoption. Therefore, there is an urgent need for a sofa structure that is simple in design, offers diverse adjustment methods, is easy to use, and boasts rich functionality, meeting daily usage needs while possessing strong market adaptability. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable sofa with a telescopic support to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustable sofa with a telescopic support includes a base, a seat cushion assembly, a backrest assembly, a telescopic support assembly, and an angle adjustment mechanism. The seat cushion assembly is mounted on top of the base, the backrest assembly is hinged to the rear end of the base, the telescopic support assembly is connected between the seat cushion assembly and the base to enable the longitudinal extension and retraction of the seat cushion assembly, and the angle adjustment mechanism is connected between the backrest assembly and the base to enable multi-angle adjustment of the backrest assembly.

[0006] Preferably, the telescopic support assembly includes at least two nested slide rail sections, with the outer slide rail section fixed to the inner side of the base and the inner slide rail section connected to the bottom of the seat cushion assembly. The slide rail sections are provided with a limiting groove and an elastic locking fastener.

[0007] Preferably, the elastic locking element is a spring-pressed steel ball lock, which is engaged in the limiting groove to maintain the positioning of the telescopic section.

[0008] Preferably, the angle adjustment mechanism includes a sector-shaped gear, an adjusting pin, and a return spring. The sector-shaped gear is fixed to one end of the backrest assembly, and the adjusting pin passes through the side wall of the base and cooperates with the gear.

[0009] Preferably, the adjusting pin is provided with a handle, which can be pressed and released or rotated by the user to position the angle.

[0010] Preferably, the front end of the seat cushion assembly is provided with a folding leg support module. The leg support module includes a connecting plate, a flip hinge, and a support rod. The connecting plate is hinged to the seat cushion assembly, and the support rod is used to support the leg support after flipping.

[0011] Preferably, the support rod is a slide rail type telescopic structure with a slot positioning structure for adjusting the support height.

[0012] Preferably, a damping gas strut is provided at the connection between the backrest assembly and the base to control the slow raising and lowering of the backrest assembly during the adjustment process.

[0013] Preferably, the surface of the seat cushion assembly and backrest assembly is covered with a memory foam filling layer, the frame is formed by welding metal tubes, and the outer layer is covered with a high-toughness fabric.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This adjustable sofa with a telescopic support can be set to the most suitable sitting length and backrest angle according to different body types, making it suitable for children, the elderly, and adults.

[0016] 2. This adjustable sofa with a telescopic support frame can be transformed into multiple forms such as sofa, nap bed, and recliner, making it convenient for use in various scenarios such as home, office, and small apartment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the nested slide rail telescopic structure of this utility model in its unfolded state;

[0019] Figure 3 This is a structural diagram of the gear plate mating of the angle adjustment mechanism described in this utility model;

[0020] Figure 4 This is a schematic diagram of the flipping and support structure of the leg support module described in this utility model;

[0021] Figure 5 This is a structural diagram of the backrest angle adjustment and gas spring slow-rise mechanism described in this utility model;

[0022] Figure 6 This is a schematic diagram of the telescopic movement direction and function switching state described in this utility model.

[0023] In the diagram: 1. Base; 2. Seat cushion assembly; 3. Backrest assembly; 4. Telescopic support assembly; 41. Slide rail section; 42. Limiting groove; 43. Locking fastener; 5. Angle adjustment mechanism; 51. Gear plate; 52. Pin shaft; 53. Return spring; 54. Handle; 6. Leg support module; 61. Connecting plate; 62. Flip hinge; 63. Support rod; 7. Gas strut. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 6 As shown, this utility model provides an adjustable sofa with a telescopic support, the structure of which includes a base (1), a seat cushion assembly (2), a backrest assembly (3), a telescopic support assembly (4), an angle adjustment mechanism (5), a leg support module (6), and a gas strut (7).

[0026] The base (1) is a square metal frame with a fixed sliding track inside. The seat cushion assembly (2) is connected to the base (1) via a telescopic bracket assembly (4). The telescopic bracket assembly (4) consists of three nested slide rail sections (41), with a maximum extension length of 1.5 times the original length. Limiting grooves (42) and elastic locking fasteners (43) are provided between the slide rail sections. After each section slides into place, the locking fasteners automatically engage to prevent rebound.

[0027] The backrest assembly (3) is connected to the base (1) via an angle adjustment mechanism (5) at its rear end. The angle adjustment mechanism (5) includes a gear (51) and a pin (52). The pin is controlled by an outer rotating handle (54). The operator can release and set the desired angle position (0° to 120°). After release, the return spring (53) repositions the pin and engages it in the gear position to form a firm support.

[0028] The seat cushion assembly (2) has a leg support module (6) installed at the front. This module is connected to the bottom of the seat cushion via a flip hinge (62). When the leg support is unfolded, it supports the ground via a sliding support rod (63). The support rod can be adjusted in three heights (150mm–250mm) along two sections of track. When not in use, the leg support can be folded back into the slot under the seat cushion.

[0029] The backrest assembly (3) is equipped with slow-lifting gas struts (7) on both sides to provide assistance and cushioning during angle adjustment, improve the smoothness and safety of adjustment, and prevent the backrest from rebounding too quickly and causing accidents.

[0030] The overall structural components are connected by screws or quick-release buckles, which facilitates transportation, installation and maintenance. The outer fabric can be replaced according to user needs. The filling layer is composed of memory foam support and high-resilience foam composite, which provides excellent comfort.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable sofa with a telescopic support frame, characterized in that: The device includes a base (1), a seat cushion assembly (2), a backrest assembly (3), a telescopic support assembly (4), and an angle adjustment mechanism (5). The seat cushion assembly (2) is mounted on top of the base (1). The backrest assembly (3) is hinged to the rear end of the base (1). The telescopic support assembly (4) is connected between the seat cushion assembly (2) and the base (1) to enable the longitudinal extension and retraction of the seat cushion assembly (2). The angle adjustment mechanism (5) is connected between the backrest assembly (3) and the base (1) to enable multi-angle adjustment of the backrest assembly (3).

2. The sofa according to claim 1, characterized in that: The telescopic support assembly (4) includes at least two nested slide rail sections (41), the outer slide rail section is fixed to the inside of the base (1), and the inner slide rail section is connected to the bottom of the cushion assembly (2). A limiting groove (42) and an elastic locking fastener (43) are provided between the slide rail sections.

3. The sofa according to claim 2, characterized in that: The elastic locking element (43) is a spring-pressed steel ball lock that is inserted into the limiting groove (42) to maintain the positioning of the telescopic section.

4. The sofa according to claim 1, characterized in that: The angle adjustment mechanism (5) includes a fan-shaped toothed disc (51), an adjustment pin (52) and a return spring (53). The fan-shaped toothed disc (51) is fixed to one end of the backrest assembly (3), and the adjustment pin (52) passes through the side wall of the base (1) and cooperates with the toothed disc (51).

5. The sofa according to claim 4, characterized in that: The adjusting pin (52) is provided with a handle (54), which can be pressed and released or rotated by the user to position the angle.

6. The sofa according to claim 1, characterized in that: The front end of the seat cushion assembly (2) is provided with a folding leg support module (6). The leg support module (6) includes a connecting plate (61), a flip hinge (62), and a support rod (63). The connecting plate (61) is hinged to the seat cushion assembly (2), and the support rod (63) is used to support the leg support after flipping.

7. The sofa according to claim 6, characterized in that: The support rod (63) is a slide rail type telescopic structure with a slot positioning structure for adjusting the support height.

8. The sofa according to claim 1, characterized in that: A damping gas strut (7) is provided at the connection between the backrest assembly (3) and the base (1) to control the slow lifting and lowering of the backrest assembly (3) during the adjustment process.

9. The sofa according to claim 1, characterized in that: The surface of the seat cushion assembly (2) and the backrest assembly (3) is covered with a memory foam filling layer, and the frame is formed by welding metal tubes and wrapped with high-toughness fabric.

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