Adjustable device for backrest of rattan sofa

Abstract

The utility model belongs to the technical field of sofa backrest adjustment, and particularly relates to a rattan sofa backrest adjustable device which comprises a sofa body mounting plate and a backrest mounting plate, the backrest mounting plate is rotatably connected with a rotating linkage rod through a rotating shaft, and a T-shaped sliding groove is transversely formed in the surface of the sofa body mounting plate. The inner wall of the T-shaped sliding groove is connected with a T-shaped sliding block in a sliding mode, and the surface of the T-shaped sliding block is rotationally connected with the other end of the rotating linkage rod through a rotating shaft. The angle of the backrest can be better adjusted when the sofa is used by arranging the T-shaped sliding groove, the T-shaped sliding block and the rotating linkage rod; during the period, an upper limiting mechanism is matched, so that the backrest angle can be quickly limited and fixed after being adjusted, and the stability during the use period is further ensured; and the original hydraulic cylinder and other parts are integrally replaced, so that the manufacturing cost and the power consumption in the use period can be greatly reduced, and better use environment friendliness is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sofa backrest adjustment, in particular to an adjustable backrest device for a rattan sofa. Background Art

[0002] Rattan sofa is a kind of furniture with rattan material as the main frame and surface, which has the characteristics of naturalness, simplicity and environmental protection. Rattan sofa is usually woven from rattan, rattan skin and other materials. Its appearance is simple and generous, and it has a good decorative effect. In addition, rattan sofa is also light, breathable, comfortable and other characteristics, which can bring people a natural, healthy and comfortable life experience; in order to make it more convenient and comfortable to use, a backrest will be added at this time; and the backrest is naturally inseparable from the angle adjustment during use, so it will be equipped with an adjustment device at the same time, but the adjustment device for the rattan sofa backrest on the market is mostly adjusted by a hydraulic cylinder, which will cause continuous power supply, resulting in a certain amount of power waste, and fail to meet better environmental protection requirements. For this reason, we provide a rattan sofa backrest adjustable device. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a rattan sofa backrest adjustable device to more accurately solve the problems raised in the above background technology.

[0004] The utility model is realized by the following technical solutions:

[0005] The utility model provides an adjustable backrest device for a rattan sofa, comprising a sofa body mounting plate and a backrest mounting plate, wherein the backrest mounting plate is rotatably connected to a rotating link through a rotating shaft, a T-shaped slide groove is transversely provided on the surface of the sofa body mounting plate, a T-shaped slide block is slidably connected to the inner wall of the T-shaped slide groove, and the surface of the T-shaped slide block is rotatably connected to the other end of the rotating link through a rotating shaft, and a limiting mechanism is connected between the sofa body mounting plate and the T-shaped slide block;

[0006] The limiting mechanism includes an L-shaped plate, an n-shaped block, a placement groove, a sliding sleeve block, a lap plate, a limiting plug rod and a limiting socket. The L-shaped plate is fixedly connected to the side of the T-shaped slider, the n-shaped block is fixedly connected to the top of the L-shaped plate, the placement groove is opened on the side of the n-shaped block, the sliding sleeve block is slidably connected to the inner wall of the placement groove, the lap plate is fixedly connected between the two sliding sleeve blocks, the limiting plug rod is fixedly connected to the upper end surface of the lap plate, and the limiting socket is opened on the side of the sofa body mounting plate.

[0007] Furthermore, the limiting mechanism also includes a fixing rod and a spring, the fixing rod is fixedly connected between the two end walls of the accommodating groove, the spring is sleeved on the periphery of the fixing rod, and the sliding sleeve block is slidably sleeved on the periphery of the fixing rod.

[0008] Furthermore, a pulling rod is inserted into the top end of the n-type block, and one end of the pulling rod is fixedly connected to the lower end surface of the lap plate.

[0009] Furthermore, screw mounting holes are provided on the surfaces of the sofa body mounting plate and the backrest mounting plate, and mounting screws are provided inside the screw mounting holes.

[0010] Furthermore, the end of the limiting plug rod passes through the L-shaped plate and is inserted into the inner wall of the limiting plug hole, and the inner diameter of the limiting plug hole is matched with the designed outer diameter of the limiting plug rod.

[0011] Furthermore, one end of the spring is fixedly connected to the end wall of the accommodating groove, and the other end of the spring is fixedly connected to one end surface of the sliding sleeve block.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a T-shaped slide groove, a T-shaped slider and a rotating connecting rod, so that the backrest angle of the sofa can be better adjusted during use; the upper limit mechanism is used during use, so that the backrest angle can be quickly limited and fixed after adjustment, thereby ensuring stability during use; and the original hydraulic cylinder and other components are replaced as a whole, which can greatly reduce the manufacturing cost and power consumption during use, and achieve better environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional top view of an embodiment of the utility model;

[0015] Figure 2 A three-dimensional bottom view of an embodiment of the utility model;

[0016] Figure 3 This is an embodiment of the utility model Figure 2 A magnified view of the structure at center.

[0017] In the figure: 1. Sofa body mounting plate; 2. Backrest mounting plate; 3. Screw mounting hole; 4. Rotary connecting rod; 5. T-shaped slide groove; 6. T-shaped slider; 7. L-shaped plate; 8. N-shaped block; 9. Mounting groove; 10. Fixed rod; 11. Spring; 12. Sliding sleeve block; 13. Overlap plate; 14. Limiting rod; 15. Limiting socket; 16. Pull rod. DETAILED DESCRIPTION

[0018] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Example

[0020] like Figure 1-Figure 3As shown, an adjustable rattan sofa backrest device proposed in one embodiment of the utility model comprises a sofa body mounting plate 1 and a backrest mounting plate 2, the backrest mounting plate 2 is rotatably connected with a rotating connecting rod 4 through a rotating shaft, a T-shaped slot 5 is transversely opened on the surface of the sofa body mounting plate 1, a T-shaped slider 6 is slidably connected to the inner wall of the T-shaped slot 5, and the surface of the T-shaped slider 6 is rotatably connected to the other end of the rotating connecting rod 4 through a rotating shaft, a limiting mechanism is connected between the sofa body mounting plate 1 and the T-shaped slider 6; the limiting mechanism comprises an L-shaped plate 7, an n-shaped block 8, a placement groove 9, a sliding sleeve block 12, a lap plate 13, a limiting plug rod 14 and a limiting plug hole 15, the L-shaped plate 7 is fixedly connected to the side of the T-shaped slider 6, the n-shaped block 8 is fixedly connected to the top of the L-shaped plate 7, and the placement groove 9, the sliding sleeve block 12, the lap plate 13, the limiting plug rod 14 and the ... The placement groove 9 is opened on the side of the n-type block 8, the sliding sleeve 12 is slidably connected to the inner wall of the placement groove 9, the lap plate 13 is fixedly connected between the two sliding sleeves 12, the limit plug rod 14 is fixedly connected to the upper end surface of the lap plate 13, and the limit plug hole 15 is opened on the side of the sofa body mounting plate 1, and a pull rod 16 is inserted at the top of the n-type block 8, and one end of the pull rod 16 is fixedly connected to the lower end surface of the lap plate 13. The surfaces of the sofa body mounting plate 1 and the backrest mounting plate 2 are both provided with screw mounting holes 3, and the screw mounting holes 3 are provided with mounting screws. The end of the limit plug rod 14 passes through the L-shaped plate 7 and is inserted into the inner wall of the limit plug hole 15, and the inner diameter of the limit plug hole 15 is adapted to the designed outer diameter of the limit plug rod 14.

[0021] Among them, by setting the rotating connecting rod 4, T-shaped sliding groove 5 and T-shaped sliding block 6, the rotating connecting rod 4 can be rotated by moving the T-shaped sliding block 6 while the positions of the sofa body mounting plate 1 and the backrest mounting plate 2 remain unchanged, thereby achieving the purpose of adjusting the backrest angle.

[0022] Furthermore, the limiting mechanism also includes a fixed rod 10 and a spring 11, the fixed rod 10 is fixedly connected between the two end walls of the mounting groove 9, the spring 11 is sleeved on the periphery of the fixed rod 10, the sliding sleeve block 12 is slidably sleeved on the periphery of the fixed rod 10, one end of the spring 11 is fixedly connected to the end wall of the mounting groove 9, and the other end of the spring 11 is fixedly connected to one end surface of the sliding sleeve block 12.

[0023] Among them, by setting the fixing rod 10 and the spring 11, the lap plate 13 can better cooperate with the fixing rod 10 and the sliding sleeve 12 when not subject to force and reset under the rebound force of the spring 11, so that the end of the limiting rod 14 can be quickly inserted into the inner wall of the limiting hole 15 and limit the T-shaped slider 6.

[0024] Working principle of the utility model: when using the adjustable backrest device for a rattan sofa, firstly, the sofa body mounting plate 1 and the backrest mounting plate 2 are fixedly mounted with the sofa body and the backrest respectively in cooperation with the screw mounting holes 3 and the screws; and if the backrest angle needs to be adjusted during the later use of the whole, at this time, it is only necessary to pull the pulling rod 16 downward to allow the lap plate 13 to drive the limiting plug rod 14 to move downward, and then the end of the limiting plug rod 14 is pulled out from the inner wall of the limiting plug hole 15, and then the T-shaped sliding block 6 can be moved on the inner wall of the T-shaped sliding groove 5, so as to achieve the purpose of rotating the rotating connecting rod 4 and adjusting the backrest angle; once the adjustment is completed, the force on the pulling rod 16 is released in time, so that the limiting plug rod 14 can be quickly reset and inserted into the inner wall of the limiting plug hole 15.

[0025] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although it is not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification. At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "one embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not used to limit the order of the processes and methods of this specification.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rattan sofa backrest adjustable device, comprising a sofa body mounting plate (1) and a backrest mounting plate (2), characterized in that: The backrest mounting plate (2) is rotatably connected to a rotating link (4) via a rotating shaft, a T-shaped slide groove (5) is transversely provided on the surface of the sofa body mounting plate (1), a T-shaped slider (6) is slidably connected to the inner wall of the T-shaped slide groove (5), and the surface of the T-shaped slider (6) is rotatably connected to the other end of the rotating link (4) via a rotating shaft, and a limiting mechanism is connected between the sofa body mounting plate (1) and the T-shaped slider (6); The limiting mechanism comprises an L-shaped plate (7), an n-shaped block (8), a placement groove (9), a sliding sleeve block (12), a lap plate (13), a limiting plug rod (14) and a limiting plug hole (15); the L-shaped plate (7) is fixedly connected to the side of the T-shaped slider (6); the n-shaped block (8) is fixedly connected to the top of the L-shaped plate (7); the placement groove (9) is arranged on the side of the n-shaped block (8); the sliding sleeve block (12) is slidably connected to the inner wall of the placement groove (9); the lap plate (13) is fixedly connected between the two sliding sleeve blocks (12); the limiting plug rod (14) is fixedly connected to the upper end surface of the lap plate (13); and the limiting plug hole (15) is arranged on the side of the sofa body mounting plate (1).

2. The rattan sofa backrest adjustable device according to claim 1, characterized in that: The limiting mechanism further comprises a fixing rod (10) and a spring (11); the fixing rod (10) is fixedly connected between the two end walls of the placement groove (9); the spring (11) is sleeved on the periphery of the fixing rod (10); and the sliding sleeve block (12) is slidably sleeved on the periphery of the fixing rod (10).

3. The rattan sofa backrest adjustable device according to claim 1, characterized in that: A pulling rod (16) is inserted into the top end of the n-type block (8), and one end of the pulling rod (16) is fixedly connected to the lower end surface of the lap plate (13).

4. The rattan sofa backrest adjustable device according to claim 1, characterized in that: The surfaces of the sofa body mounting plate (1) and the backrest mounting plate (2) are both provided with screw mounting holes (3), and mounting screws are arranged inside the screw mounting holes (3).

5. The rattan sofa backrest adjustable device according to claim 1, characterized in that: The end of the limiting plug rod (14) passes through the L-shaped plate (7) and is inserted into the inner wall of the limiting plug hole (15), and the inner diameter of the limiting plug hole (15) is adapted to the designed outer diameter of the limiting plug rod (14).

6. The rattan sofa backrest adjustable device according to claim 2, characterized in that: One end of the spring (11) is fixedly connected to the end wall of the placement groove (9), and the other end of the spring (11) is fixedly connected to one end surface of the sliding sleeve block (12).

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