Adjustable sofa

Abstract

The utility model relates to the technical field of sofa adjustment, in particular to an adjustable sofa which comprises a seat plate, a side backrest, a rotating shaft A, a rotating shaft B, a locking button and a front auxiliary backrest, the side backrest is rotationally connected with the side bracket of the seat plate through the rotating shaft B; the locking button is installed in a side auxiliary groove of the side backrest, and the front end of the locking button abuts against the rotating shaft B; the locking button is also installed in the front auxiliary groove of the front auxiliary backrest, and the front end of the locking button abuts against the A rotating shaft; the front auxiliary backrest is rotationally connected with the front bracket of the seat plate through the rotating shaft A; the side backrests and the front auxiliary backrests which can rotate and can be locked are designed on the front side, the left side and the right side of the seat plate, so that a rest person is prevented from falling down, and a tall person can have a better rest conveniently.

Description

Technical Field

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

[0002] As a kind of furniture, sofas are widely used in life. No matter sitting or lying on the sofa, it is very comfortable. However, when lying down to rest, the existing conventional sofas are easy to fall to the ground when turning over without paying attention, causing unnecessary injuries to the user; when some users are tall, some sofas are not long enough to provide a good rest. Now an adjustable sofa is provided to improve the problem of users falling to the ground when resting, and at the same time provide better rest for tall users. Summary of the invention

[0003] The utility model prevents the resting person from falling and facilitates the resting person with a tall stature to have a better rest by designing the rotatable and lockable side backrests and the front auxiliary backrest on the front side and the left and right sides of the seat plate.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An adjustable sofa comprises a seat, a side backrest, an A rotating shaft, a B rotating shaft, a locking button and a front auxiliary backrest; the side backrest is rotatably connected to the side bracket of the seat via the B rotating shaft; the locking button is installed in the side auxiliary groove of the side backrest, with its front end abutting against the B rotating shaft; the locking button is also installed in the front auxiliary groove of the front auxiliary backrest, with its front end abutting against the A rotating shaft; the front auxiliary backrest is rotatably connected to the front bracket of the seat via the A rotating shaft.

[0006] Preferably, the rear of the seat board is fixedly connected to the backrest, and side brackets are designed on the left and right sides of the seat board, and a front bracket is designed in the front; the side brackets are conveniently matched with the B rotating shaft and connected to the side backrest, so that the side backrest can be rotated and the length of the sofa can be adjusted; the front bracket is conveniently matched with the A rotating shaft and connected to the front auxiliary backrest, so that when lying down, the front auxiliary backrest can be raised to prevent falls.

[0007] Preferably, the side backrest is provided with two side auxiliary grooves, which are threadedly connected to the locking button.

[0008] Preferably, two front auxiliary grooves are provided on the front auxiliary backrest to leave space for the threaded movement of the locking button.

[0009] Preferably, the length of the A rotating shaft is longer than that of the B rotating shaft.

[0010] Compared with the prior art, the gain effect of the utility model is:

[0011] 1. The design of the front auxiliary backrest can prevent the user from accidentally falling to the ground and causing injuries when resting;

[0012] 2. The side backrest can be laid flat, providing a more comfortable resting environment for taller people and making it easier to fall asleep. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of an adjustable sofa according to an embodiment of the utility model;

[0014] Figure 2 This is a front view of an adjustable sofa according to an embodiment of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of an adjustable sofa in a resting state according to an embodiment of the utility model.

[0016] In the figure: seat plate 1; backrest 2; side backrest 3; side auxiliary groove 31; A rotation shaft 41; B rotation shaft 42; locking button 5; front auxiliary backrest 6; front auxiliary groove 61;

[0017] Front bracket 11; Side bracket 12; DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Example

[0020] See also Figure 1-3 An adjustable sofa comprises a seat plate 1, a side backrest 3, an A rotation shaft 41, a B rotation shaft 42, a locking button 5 and a front auxiliary backrest 6; the side backrest 3 is rotatably connected to the side bracket 12 of the seat plate 1 through the B rotation shaft 42; the locking button 5 is installed in the side auxiliary groove 31 of the side backrest 3, and its front end abuts against the B rotation shaft 42; the locking button 5 is also installed in the front auxiliary groove 61 of the front auxiliary backrest 6, and its front end abuts against the A rotation shaft 41; the front auxiliary backrest 6 is rotatably connected to the front bracket 11 of the seat plate 1 through the A rotation shaft 41.

[0021] The rear of the seat plate 1 is fixedly connected to the backrest 2, and side brackets 12 are designed on the left and right sides of the seat plate 1, and a front bracket 11 is designed in the front; the side brackets 12 are conveniently matched with the B rotation shaft 42 and connected to the side backrest, so that the side backrest can be rotated and the length of the sofa can be adjusted; the front bracket 11 is conveniently matched with the A rotation shaft 41 and connected to the front auxiliary backrest 6, so that when lying down, the front auxiliary backrest 6 can be raised to prevent falls.

[0022] Two side auxiliary grooves 31 are provided on the side backrest 3 , and the locking button 5 is threadedly connected at the side auxiliary grooves 31 .

[0023] Two front auxiliary grooves 61 are provided on the front auxiliary backrest 6 to leave space for the threaded movement of the locking button 5 .

[0024] The length of the A rotation shaft 41 is longer than that of the B rotation shaft 42 .

[0025] Working principle: when you need to take a rest, lift up the front auxiliary backrest 6, turn the locking button 5 in the front auxiliary slot 61 to fix the lifted front auxiliary backrest 6, and choose to put down one or two side backrests according to the height of the user. When laying down the side backrests, first loosen the tightened locking button 5, then lay the side backrest 3 flat, and then tighten the locking button 5 after laying it flat; the sofa can be adjusted; after resting, loosen the locking button 5 that fixes the front auxiliary backrest 6, lay the front auxiliary backrest 6 down, and at the same time loosen the locking button 5 of the flat side backrest 3, and after the side backrest is restored to its original position, tighten the locking button 5 again.

Claims

1. An adjustable sofa, characterized in that: It includes a seat plate, a side backrest, an A-rotating shaft, a B-rotating shaft, a locking button and a front auxiliary backrest; the side backrest is rotatably connected to the side bracket of the seat plate through the B-rotating shaft; the locking button is installed in the side auxiliary groove of the side backrest, and its front end abuts against the B-rotating shaft; the locking button is also installed in the front auxiliary groove of the front auxiliary backrest, and its front end abuts against the A-rotating shaft; the front auxiliary backrest is rotatably connected to the front bracket of the seat plate through the A-rotating shaft.

2. The adjustable sofa according to claim 1, characterized in that: The rear of the seat plate is fixedly connected to a backrest, the left and right sides of the seat plate are designed with side brackets, and the front side is designed with a front bracket.

3. The adjustable sofa according to claim 1, characterized in that: The side backrest is provided with two side auxiliary grooves, which are threadedly connected with the locking button at the side auxiliary grooves.

4. The adjustable sofa according to claim 1, characterized in that: Two front auxiliary grooves are arranged on the front auxiliary backrest.

5. The adjustable sofa according to claim 1, characterized in that: The length of the A rotating shaft is longer than that of the B rotating shaft.

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