Sofa with adjustable armrests

Abstract

The utility model belongs to the technical field of sofas, and particularly relates to a sofa with adjustable armrests, which comprises a sofa base, armrests are mounted on two sides of the upper surface of the sofa base, rotating drums are fixedly connected to the lower surfaces of the armrests, fixing rods are rotatably connected to two sides of the inside of the sofa base, and the rotating drums are fixedly connected to the fixing rods. The inner wall of the rotating cylinder is fixedly connected to the outer wall of a fixing rod, mounting seats are fixedly connected to the two sides of the outer wall of the sofa base, and one end of the fixing rod is rotationally connected to the interior of each mounting seat. The connecting gear is separated from the fixed gear by pulling the sliding rod, then the handrail is pushed to drive the fixed rod to rotate, when the handrail is adjusted to the needed position, the sliding rod is loosened, under the cooperation of the first tension spring, the sliding rod can be reset, and then the connecting gear is clamped into the fixed gear again. Therefore, the angle of the armrest on the sofa can be adjusted, the requirements of different sitting postures are met, and the overall comfort is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa technical field, concretely is a sofa that handrail can adjust. BACKGROUND

[0002] Sofa is one of common furniture in family, and its design and function continuously evolve with the passage of time, and modern sofa is usually made of advanced material, such as high-density sponge, memory sponge and thick spring, to provide better support and comfort.

[0003] Although the traditional sofa has many advantages, it still has some deficiencies, for example, its structure is relatively fixed, so the angle of its armrest is not adjustable, which will be limited in some use scenarios, so it is difficult to meet people's needs, and because its structure is relatively fixed, its sitting posture space is also relatively fixed, so it will not be stretched in long-term use, so as to affect its use experience. INVENTION CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a sofa with adjustable armrests, which solves the problem that the structure of the existing sofa is relatively fixed, so the angle of its armrest is not adjustable, which will be limited in some use scenarios, so it is difficult to meet people's needs, and because its structure is relatively fixed, its sitting posture space is also relatively fixed, so it will not be stretched in long-term use, so as to affect its use experience.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a sofa with adjustable armrests, including sofa base, the upper surface of the sofa base is provided with armrests on both sides, the lower surface of the armrest is fixedly connected with a rotating drum, the inside of the sofa base is rotatably connected with a fixed rod on both sides, the inner wall of the rotating drum is fixedly connected with the outer wall of the fixed rod, the outer wall of the sofa base is fixedly connected with a mounting seat on both sides, one end of the fixed rod is rotatably connected in the inside of the mounting seat, the outer wall of the fixed rod is fixedly connected with a fixed gear on one side, the lower part of the mounting seat is slidably connected with a sliding rod, the outer wall of the sliding rod is fixedly connected with a connecting gear, the connecting gear is engaged with the fixed gear, the outer wall of the sliding rod is sleeved with a tension spring one on one side, one end of the tension spring one is fixedly connected with one side of the connecting gear, the other end of the tension spring one is fixedly connected with one side of the inner wall of the mounting seat, the outer wall of the sofa base is provided with a positioning assembly on both sides, and the positioning assembly is installed on the outer wall of the fixed rod.

[0006] As a preferred technical scheme of the utility model, the positioning assembly comprises a ratchet wheel and a connecting rod, the middle part of the ratchet wheel is fixedly connected to one side of the outer wall of the fixed rod, one end of the connecting rod is fixedly connected to the outer wall of the sofa base, the outer wall of the connecting rod is slidably connected with a connecting disc, one side of the outer wall of the connecting disc is fixedly connected with a fixing frame, one side of the fixing frame is rotatably connected with a pawl, the pawl is engaged with the ratchet wheel, one side of the outer wall of the connecting disc is provided with an elastic sheet, one side of the elastic sheet is attached to one side of the pawl, the outer wall of the connecting rod is sleeved with a second tension spring, one end of the second tension spring is fixedly connected to one end of the connecting rod, the other end of the second tension spring is fixedly connected to one side of the connecting disc.

[0007] As a preferred technical scheme of the utility model, the outer wall of the fixed rod is provided with a torsion spring.

[0008] As a preferred technical scheme of the utility model, the rear side of the sofa base is fixedly connected with a backrest.

[0009] As a preferred technical scheme of the utility model, the upper surface of the sofa base is provided with a cushion, and the adjacent surfaces of the armrests are fixedly connected with back cushions.

[0010] As a preferred technical scheme of the utility model, the lower surface of the sofa base is fixedly connected with supporting legs at four corners.

[0011] Compared with the prior art, the utility model provides a sofa with adjustable armrests, which has the following advantages

[0012] Beneficial effects:

[0013] 1、the sofa with adjustable armrests, by pulling the slide rod, the connecting gear is separated from the fixed gear, then the armrest is pushed, the rotation drives the fixed rod to rotate, when the armrest is adjusted to the required position, the slide rod is loosened, under the cooperation of the first tension spring, the slide rod is reset, the connecting gear is re-engaged in the fixed gear, thereby the angle of the armrest on the sofa can be adjusted, different sitting postures are met, and the overall comfort is improved.

[0014] 2、the sofa with adjustable armrests, when the fixed rod rotates, the ratchet wheel rotates at the same time, the ratchet wheel moves on the pawl, the elastic sheet provides elastic force, the pawl always keeps the engaged state with the ratchet wheel, thereby the armrest is prevented from rotating without operation, the stability and safety of the armrest are ensured, and the problems of loosening or rebounding of the armrest after the angle is adjusted are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the utility model three-dimensional view;

[0016] Figure 2 It is the utility model structure schematic view.

[0017] Figure 3 The utility model structural explosion map is provided.

[0018] Figure 4 The utility model structural development map is provided.

[0019] In the drawing: 1, sofa base, 2, handrail, 3, mounting seat, 4, rotating drum, 5, fixed link, 6, torsion spring, 7, fixed gear, 8, sliding rod, 9, connecting gear, 10, pull spring one, 11, positioning assembly, 1101, ratchet wheel, 1102, connecting rod, 1103, connecting disc, 1104, fixed frame, 1105, pawl, 1106, elastic sheet, 1107, pull spring two, 12, backrest, 13, cushion, 14, back cushion, 15, supporting leg. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment one

[0022] Please refer to Figures 1-4 In the embodiment, a sofa with adjustable handrails comprises a sofa base 1, handrails 2 are installed on the upper surface of the sofa base 1 on both sides, rotating drums 4 are fixedly connected to the lower surface of the handrails 2, fixed links 5 are rotatably connected to the inside of the sofa base 1 on both sides, the inner wall of the rotating drum 4 is fixedly connected to the outer wall of the fixed link 5, mounting seats 3 are fixedly connected to the outer wall of the sofa base 1 on both sides, one end of the fixed link 5 is rotatably connected to the inside of the mounting seat 3, fixed gears 7 are fixedly connected to one side of the outer wall of the fixed link 5, sliding rods 8 are slidably connected to the lower part of the mounting seat 3, connecting gears 9 are fixedly connected to the outer wall of the sliding rod 8, the connecting gears 9 are engaged with the fixed gears 7, pull springs one 10 are sleeved on one side of the outer wall of the sliding rod 8, one end of the pull springs one 10 is fixedly connected to one side of the connecting gears 9, the other end of the pull springs one 10 is fixedly connected to one side of the inner wall of the mounting seat 3, positioning assemblies 11 are installed on the outer wall of the sofa base 1 on both sides, and the positioning assemblies 11 are installed on the outer wall of the fixed link 5.

[0023] When the armrest 2 needs to be adjusted, the slide rod 8 is pulled to drive the connecting gear 9 connected thereto to move, so that the connecting gear 9 is disengaged from the fixed gear 7, and then the armrest 2 is pushed to drive the rotating drum 4 to rotate, thereby driving the fixed rod 5 to rotate. When the armrest 2 is adjusted to the desired position, the slide rod 8 is released, and under the cooperation of the tension spring 10, the slide rod 8 can be reset, so that the connecting gear 9 is re-engaged with the fixed gear 7, the angle of the armrest 2 on the sofa can be adjusted, different sitting postures can be met, and the overall comfort is improved.

[0024] Further, the positioning assembly 11 comprises a ratchet wheel 1101 and a connecting rod 1102. The middle part of the ratchet wheel 1101 is fixedly connected to one side of the outer wall of the fixed rod 5. One end of the connecting rod 1102 is fixedly connected to the outer wall of the sofa base 1. The outer wall of the connecting rod 1102 is slidingly connected with a connecting disc 1103. One side of the outer wall of the connecting disc 1103 is fixedly connected with a fixed frame 1104. One side of the fixed frame 1104 is rotatably connected with a ratchet claw 1105. The ratchet claw 1105 is engaged with the ratchet wheel 1101. The outer wall of the connecting disc 1103 is provided with an elastic sheet 1106. One side of the elastic sheet 1106 is in contact with one side of the ratchet claw 1105. The outer wall of the connecting rod 1102 is sleeved with a tension spring 1107. One end of the tension spring 1107 is fixedly connected to one end of the connecting rod 1102. The other end of the tension spring 1107 is fixedly connected to one side of the connecting disc 1103. The outer wall of the fixed rod 5 is provided with a torsion spring 6.

[0025] When the fixed rod 5 rotates, the ratchet wheel 1101 rotates at the same time, so that the ratchet wheel 1101 moves on the ratchet claw 1105. The elastic sheet 1106 provides elastic force, so that the ratchet claw 1105 always maintains the engaged state with the ratchet wheel 1101, thereby preventing the armrest 2 from rotating without operation, ensuring the stability and safety of the armrest 2, and avoiding the problems of loosening or rebounding of the armrest 2 after adjusting the angle. When the armrest 2 needs to be adjusted, the connecting disc 1103 is pulled to make the ratchet claw 1105 disengage from the ratchet wheel 1101, so that the armrest 2 can be adjusted. The torsion spring 6 on the outer wall of the fixed rod 5 can provide a certain rotation force to make the armrest 2 return to the default position. After the adjustment is completed, the connecting disc 1103 is released, the connecting disc 1103 is reset by the tension spring 1107, the ratchet claw 1105 is re-engaged with the ratchet wheel 1101, and the new position is locked.

[0026] Preferably, the rear side of the sofa base 1 is fixedly connected with a backrest 12. The upper surface of the sofa base 1 is provided with a cushion 13. The adjacent surfaces of the armrest 2 are fixedly connected with a back cushion 14. The lower surface of the sofa base 1 is fixedly connected with a supporting leg 15 at four corners.

[0027] The working principle and use process of the utility model are as follows: when the handrail 2 needs to be adjusted, the slide rod 8 is pulled, the slide rod 8 drives the connected connecting gear 9 to move, the connecting gear 9 is separated from the fixed gear 7, then the handrail 2 is pushed, the handrail 2 drives the rotating drum 4 to rotate, further can drive the fixed rod 5 to rotate, when the handrail 2 is adjusted to the required position, the slide rod 8 is loosened, under the cooperation of the tension spring one 10, the slide rod 8 can be reset, so that the connecting gear 9 and the fixed gear 7 are re-engaged, the angle of the handrail 2 on the sofa can be adjusted, the different sitting posture requirements are met, and the overall comfort is improved; the fixed rod 5 drives the ratchet wheel 1101 to rotate at the same time when rotating, the ratchet wheel 1101 moves on the pawl 1105, the elastic sheet 1106 provides elastic force, the pawl 1105 always keeps the meshing state with the ratchet wheel 1101, so that the handrail 2 is prevented from rotating when no operation, the stability and safety of the handrail 2 are ensured, and the problems that the handrail 2 is loose or rebounds after the angle is adjusted are avoided, when the handrail 2 needs to be adjusted back, the connecting disc 1103 is pulled, the pawl 1105 is separated from the ratchet wheel 1101, the handrail 2 can be adjusted at this time, the torsional spring 6 on the outer wall of the fixed rod 5 can provide certain rotation force, the handrail 2 returns to the default position, after the adjustment is completed, the connecting disc 1103 is loosened, the tension spring two 1107 makes the connecting disc 1103 reset, the pawl 1105 is re-engaged with the ratchet wheel 1101, and the new position is locked.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A sofa with adjustable armrests, comprising a sofa base (1), characterized in that: Armrests (2) are installed on both sides of the upper surface of the sofa base (1). A rotating cylinder (4) is fixedly connected to the lower surface of the armrests (2). Fixed rods (5) are rotatably connected to both sides of the interior of the sofa base (1). The inner wall of the rotating cylinder (4) is fixedly connected to the outer wall of the fixed rod (5). Mounting seats (3) are fixedly connected to both sides of the outer wall of the sofa base (1). One end of the fixed rod (5) is rotatably connected to the interior of the mounting seat (3). A fixed gear (7) is fixedly connected to one side of the outer wall of the fixed rod (5). The mounting seat (3) has... A sliding rod (8) is slidably connected to the lower part. A connecting gear (9) is fixedly connected to the outer wall of the sliding rod (8). The connecting gear (9) meshes with the fixed gear (7). A tension spring (10) is sleeved on one side of the outer wall of the sliding rod (8). One end of the tension spring (10) is fixedly connected to one side of the connecting gear (9). The other end of the tension spring (10) is fixedly connected to one side of the inner wall of the mounting base (3). Positioning components (11) are installed on both sides of the outer wall of the sofa base (1). The positioning components (11) are installed on the outer wall of the fixed rod (5).

2. The sofa with adjustable armrests according to claim 1, characterized in that: The positioning assembly (11) includes a ratchet (1101) and a connecting rod (1102). The middle part of the ratchet (1101) is fixedly connected to one side of the outer wall of the fixing rod (5). One end of the connecting rod (1102) is fixedly connected to the outer wall of the sofa base (1). A connecting plate (1103) is slidably connected to the outer wall of the connecting rod (1102). A fixing frame (1104) is fixedly connected to one side of the outer wall of the connecting plate (1103). A pawl (110) is rotatably connected to one side of the fixing frame (1104). 5) The pawl (1105) meshes with the ratchet (1101). An elastic plate (1106) is installed on one side of the outer wall of the connecting disc (1103). One side of the elastic plate (1106) is in contact with one side of the pawl (1105). A tension spring (1107) is sleeved on the outer wall of the connecting rod (1102). One end of the tension spring (1107) is fixedly connected to one end of the connecting rod (1102), and the other end of the tension spring (1107) is fixedly connected to one side of the connecting disc (1103).

3. A sofa with adjustable armrests according to claim 2, characterized in that: A torsion spring (6) is installed on the outer wall of the fixing rod (5).

4. A sofa with adjustable armrests according to claim 1, characterized in that: The backrest (12) is fixedly connected to the rear side of the sofa base (1).

5. A sofa with adjustable armrests according to claim 1, characterized in that: The upper surface of the sofa base (1) is provided with a seat cushion (13), and the adjacent surfaces of the armrests (2) are fixedly connected with back cushions (14).

6. A sofa with adjustable armrests according to claim 1, characterized in that: The lower surface of the sofa base (1) is fixedly connected to four corners with legs (15).

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