Sofa capable of adjusting angles of backrest and headrest

Abstract

The utility model belongs to the technical field of sofas, and discloses a backrest and headrest angle-adjustable sofa which comprises a sofa body, an adjusting mechanism is arranged on the outer side of the sofa body, and the adjusting mechanism extends into the sofa body; the adjusting mechanism comprises two moving grooves and two grooves, the two moving grooves and the two grooves are formed in the two sides of the sofa body respectively, during use, a threaded rod can be rotated by rotating a worm, and due to the fact that a moving block is matched with the moving grooves, the purpose of limiting the moving block can be achieved, so that the moving block moves forwards in the horizontal direction; the movable block drives the backrest headrest to move forwards through the movable rod, when the backrest headrest moves forwards to a proper angle, rotation of the knob can be stopped, through the structure, the problems that due to the fact that the front-back position of the backrest headrest cannot be adjusted generally, a sofa is inconvenient to use, the rest experience of a user is affected, and the backrest headrest cannot be adjusted forwards and backwards are solved. And great inconvenience is also brought.

Description

Technical Field

[0001] This application relates to the technical field of sofas, and more specifically, to a sofa with an adjustable backrest headrest angle. Background Art

[0002] The sofa, this familiar word, is an essential piece of furniture in every family. It is not only an important place for family members to relax and entertain, but also the best place for them to communicate emotions, relieve fatigue and relax the body and mind.

[0003] Most existing sofas still have some problems during use. For example, the front and back positions of the backrest headrest of the sofa generally cannot be adjusted, so there are many inconveniences when using the sofa, which will not only affect the user's rest experience, but also bring great inconvenience.

[0004] To solve the above problems, this application provides a sofa with an adjustable backrest headrest angle. Utility Model Content

[0005] The sofa with an adjustable backrest headrest angle provided by this application adopts the following technical solutions:

[0006] A sofa with an adjustable backrest headrest angle, including a sofa body, an adjustment mechanism is provided outside the sofa body, and the adjustment mechanism extends into the sofa body;

[0007] The adjustment mechanism includes two moving grooves and two grooves. The two moving grooves and the two grooves are respectively opened on both sides of the sofa body. The two moving grooves and the two grooves are symmetrically arranged with the center line of the sofa body as the axis. The two moving grooves are respectively located behind the two grooves. Moving blocks are embedded in the two moving grooves. Threaded rods are inserted into the two moving blocks. The rear ends of the two threaded rods extend into the rear part of the sofa body. The front ends of the two threaded rods respectively penetrate the two grooves and extend to the front side of the sofa body. Worms are fixedly sleeved on the outer sides of the front ends of the two threaded rods. Two worms are meshed with the tops of the two worms. Two backrest headrests are provided on the top of the sofa body. Moving rods are fixedly connected between the two backrest headrests and the two moving blocks. Auxiliary components are provided on the outer sides of the two moving rods.

[0008] Furthermore, the connections between the two threaded rods and the sofa body are both movably connected through bearings, and the two moving blocks respectively match the two moving grooves.

[0009] Through the above technical solutions, since the two moving blocks respectively match the two moving grooves, the two moving blocks can be limited, and thus the two moving blocks can move more stably when moving back and forth.

[0010] Further, the auxiliary component includes two mounting shells, the two mounting shells are respectively fixedly connected to both sides of the sofa body, and the two mounting shells are respectively located outside the two grooves.

[0011] Through the above technical solution, by providing two mounting shells, it can not only further support the two worm shafts, but also protect the worm gear and the worm shaft.

[0012] Further, the two mounting shells are respectively sleeved outside the two worm shafts in a movable manner, and the inner ends of the two worm shafts are respectively rotatably connected to the inside of the sofa body.

[0013] Through the above technical solution, when the two worm shafts rotate, they can be more stable.

[0014] Further, knobs are respectively fixedly sleeved outside the outer ends of the two worm shafts, and the two knobs are respectively located outside the two mounting shells.

[0015] Through the above technical solution, by providing two knobs, it is convenient for the user to rotate the two worm shafts later, so as to quickly adjust the positions of the two backrest headrests.

[0016] Further, connecting rods are respectively fixedly connected to both sides of the sofa body, and armrests are respectively fixedly connected to the outsides of the two connecting rods.

[0017] Further, a storage groove is provided on the front side of the sofa body, two placing plates are embedded in the storage groove, limiting blocks are respectively fixedly connected to the bottoms of the two placing plates, the two limiting blocks both extend into the sofa body, and pulling grooves are respectively provided on the front sides of the two placing plates.

[0018] Through the above technical solution, by the cooperation of the two placing plates and the storage groove, it is convenient for the user to place the feet on the placing plates after lying on the sofa, so as to enhance the comfort of the device.

[0019] In summary, the present application includes the following beneficial technical effects:

[0020] During use, the worm shaft can be rotated to make the threaded rod rotate. Since the moving block matches the moving groove, the moving block can be limited, so that the moving block moves forward horizontally. The moving block drives the backrest headrest to move forward through the moving rod. When the backrest headrest moves forward to a suitable angle, the rotation of the knob can be stopped. Through the above structure, the problem that the front and back positions of the backrest headrest are generally not adjustable, which will cause many inconveniences when using the sofa, not only affecting the user's rest experience but also bringing great inconvenience, is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 is a partial perspective view of the present application;

[0023] Figure 3 is a sectional perspective view of the placement plate and the limit block of the present application;

[0024] Figure 4 is of the present application Figure 2 enlarged view of the structure at A in

[0025] Explanation of the reference numerals in the figure:

[0026] 1. Sofa body; 2. Moving block; 3. Threaded rod; 4. Worm gear; 5. Worm; 6. Backrest headrest; 7. Moving rod; 8. Installation shell; 9. Knob; 10. Connecting rod; 11. Armrest; 12. Placement plate; 13. Limit block; 14. Moving groove; 15. Groove. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element 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 application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0030] Embodiment:

[0031] The embodiment of the present application discloses a sofa with an adjustable backrest headrest angle. Please refer to Figure 1, Figure 2 , Figure 3 and Figure 4 , including a sofa body 1, an adjustment mechanism is provided outside the sofa body 1, and the adjustment mechanism extends into the sofa body 1;

[0032] The adjustment mechanism includes two moving grooves 14 and two grooves 15. The two moving grooves 14 and the two grooves 15 are respectively opened on both sides of the sofa body 1. The two moving grooves 14 and the two grooves 15 are symmetrically arranged with the midline of the sofa body 1 as the axis. The two moving grooves 14 are respectively located behind the two grooves 15. Moving blocks 2 are respectively embedded in the two moving grooves 14. Threaded rods 3 are respectively inserted into the two moving blocks 2 in a threaded manner. The rear ends of the two threaded rods 3 both extend into the interior of the rear side of the sofa body 1. The front ends of the two threaded rods 3 respectively penetrate through the two grooves 15 and extend to the front side of the sofa body 1. Worms 4 are respectively fixedly sleeved on the outer sides of the front ends of the two threaded rods 3. Worms 5 are respectively engaged with the tops of the two worms 4. Two backrest headrests 6 are provided on the top of the sofa body 1. Moving rods 7 are fixedly connected between the two backrest headrests 6 and the two moving blocks 2 respectively. The connections between the two threaded rods 3 and the sofa body 1 are respectively movably connected through bearings. The two moving blocks 2 respectively match the two moving grooves 14. Because the two moving blocks 2 respectively match the two moving grooves 14, the two moving blocks 2 can be limited, so that the two moving blocks 2 can move more stably when moving back and forth;

[0033] Please refer to Figure 1 , auxiliary components are provided on the outer sides of the two moving rods 7. The auxiliary components include two mounting shells 8. The two mounting shells 8 are respectively fixedly connected to both sides of the sofa body 1. The two mounting shells 8 are respectively located outside the two grooves 15. By providing the two mounting shells 8, the two worms 5 can be further supported, and the worms 4 and the worms 5 can be protected;

[0034] Please refer to Figure 1 and Figure 4 , the two mounting shells 8 are respectively movably sleeved on the outer sides of the two worms 5. The inner ends of the two worms 5 are respectively rotatably connected to the interior of the sofa body 1. Knobs 9 are respectively fixedly sleeved on the outer sides of the outer ends of the two worms 5. The two knobs 9 are respectively located outside the two mounting shells 8. By providing the two knobs 9, it is convenient for the user to rotate the two worms 5 later, so as to quickly adjust the positions of the two backrest headrests 6;

[0035] Please refer to Figure 1 , Figure 2 and Figure 3, connecting rods 10 are fixedly connected to both sides of the sofa body 1, armrests 11 are fixedly connected to the outside of the two connecting rods 10, a storage groove is formed in the front side of the sofa body 1, two placing plates 12 are embedded in the storage groove, limiting blocks 13 are fixedly connected to the bottoms of the two placing plates 12, the two limiting blocks 13 both extend into the sofa body 1, pulling grooves are formed in the front sides of the two placing plates 12, and by matching the two placing plates 12 with the storage groove, it is convenient for the user to place the feet on the placing plates 12 after lying on, so as to enhance the comfort of the device.

[0036] The implementation principle of this embodiment is as follows: During use, by rotating the corresponding knob 9, the worm 5 rotates. Since the worm 5 meshes with the worm gear 4, the threaded rod 3 can be rotated. Since the moving block 2 matches the moving groove 14, the moving block 2 can be limited, so that the moving block 2 moves forward horizontally. The moving block 2 drives the backrest headrest 6 forward through the moving rod 7. When the backrest headrest 6 moves forward to a suitable angle, the rotation of the knob 9 can be stopped. Since the worm gear 4 and the worm 5 transmission have many characteristics, one of which is the self-locking principle, the positioning effect of the backrest headrest 6 can be strengthened. Through the above structure, the problem that since the front and rear positions of the backrest headrest 6 generally cannot be adjusted, there are many inconveniences when using the sofa, which will not only affect the user's rest experience but also cause great inconvenience is solved.

[0037] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A sofa with adjustable backrest and headrest angle, comprising a sofa body (1), characterized in that: An adjustment mechanism is provided on the outside of the sofa body (1), and the adjustment mechanism extends into the interior of the sofa body (1); The adjustment mechanism comprises two movable grooves (14) and two grooves (15), the two movable grooves (14) and the two grooves (15) are respectively arranged on both sides of the sofa body (1), the two movable grooves (14) and the two grooves (15) are symmetrically arranged with the center line of the sofa body (1) as the axis, the two movable grooves (14) are respectively located at the rear side of the two grooves (15), the two movable grooves (14) are respectively embedded with movable blocks (2), the two movable blocks (2) are respectively threadedly inserted with threaded rods (3), and the two threaded rods The rear ends of the two threaded rods (3) extend to the inside of the rear side of the sofa body (1), the front ends of the two threaded rods (3) respectively penetrate the two grooves (15) and extend to the front side of the sofa body (1), the outer sides of the front ends of the two threaded rods (3) are fixedly sleeved with worm wheels (4), the tops of the two worm wheels (4) are meshed with worms (5), the top of the sofa body (1) is provided with two backrest headrests (6), the two backrest headrests (6) are fixedly connected to the two moving blocks (2) with moving rods (7), and the outer sides of the two moving rods (7) are provided with auxiliary components.

2. A sofa with adjustable backrest and headrest angle according to claim 1, characterized in that: The connection points between the two threaded rods (3) and the sofa body (1) are movably connected via bearings, and the two moving blocks (2) are matched with the two moving grooves (14) respectively.

3. The sofa with adjustable backrest and headrest angle according to claim 1, characterized in that: The auxiliary component comprises two mounting shells (8), the two mounting shells (8) are respectively fixedly connected to two sides of the sofa body (1), and the two mounting shells (8) are respectively located outside the two grooves (15).

4. The sofa with adjustable backrest and headrest angle according to claim 3, characterized in that: The two mounting shells (8) are movably sleeved on the outsides of the two worm gears (5), and the inner ends of the two worm gears (5) are rotatably connected to the inside of the sofa body (1).

5. The sofa with adjustable backrest and headrest angle according to claim 1, characterized in that: A knob (9) is fixedly sleeved on the outer sides of the outer ends of the two worms (5), and the two knobs (9) are respectively located on the outer sides of the two mounting shells (8).

6. The sofa with adjustable backrest and headrest angle according to claim 1, characterized in that: Both sides of the sofa body (1) are fixedly connected to connecting rods (10), and the outsides of the two connecting rods (10) are fixedly connected to armrests (11).

7. The sofa with adjustable backrest and headrest angle according to claim 1, characterized in that: A storage groove is provided on the front side of the sofa body (1), two placement plates (12) are embedded in the storage groove, the bottoms of the two placement plates (12) are fixedly connected to limit blocks (13), the two limit blocks (13) extend into the interior of the sofa body (1), and the front sides of the two placement plates (12) are provided with pull grooves.

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