CN216628017U

CN216628017U - Functional extension sofa with head bearing structure

Info

Publication number: CN216628017U
Application number: CN202122680337.XU
Authority: CN
Inventors: 倪张根; 任重; 王伟; 张发欢
Original assignee: Jiangsu Ligo Smart Home Co ltd
Current assignee: Jiangsu Ligo Smart Home Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-31
Anticipated expiration: 2031-11-04

Abstract

The utility model relates to a functional extension sofa with a head supporting structure, which comprises a backrest, a base, a linkage assembly and a head supporting assembly arranged on one side of the backrest, wherein the head supporting assembly comprises a head supporting plate and a transmission rod, one side of the transmission rod is rotatably connected to the base, the other side of the transmission rod is rotatably connected with one side of the head supporting plate through a rotating shaft, a first limiting moving block is arranged on one side of the rotating shaft, which is close to the backrest, a second limiting moving block is arranged on one side of the head supporting plate, which is close to the backrest, a groove is formed in one side of the backrest, the first limiting moving block and the second limiting moving block are arranged in the groove and move up and down along the direction of the groove, so that the head supporting plate is limited on one side of the backrest, and extension and retraction are realized; the utility model realizes the support of the head when the functional sofa is extended, improves the comfort level and particularly prevents the head from touching the wall when the functional sofa backrest without leaning against the wall is inclined backwards.

Description

Functional extension sofa with head bearing structure

Technical Field

The utility model relates to the technical field of sofas, in particular to a functional extension sofa with a head supporting structure.

Background

The functional sofa is a movable multifunctional sofa which can realize the conversion among sitting posture, sitting and lying posture through an iron frame which can move inside the functional sofa. When the sofa is switched from the sitting posture to the sitting posture and the lying posture, the head is bent backwards without support, the comfortable sensation is poor, and particularly, when the functional sofa is switched from the sitting posture to the sitting posture and the lying posture, the functional sofa is attached to the wall surface all the time, and the head is easily touched with the wall when the sofa is switched from the sitting posture to the sitting posture and the lying posture.

The chinese patent publication No. CN213308543U provides a front support structure of a sofa stretching iron frame and a sofa stretching iron frame, wherein the sofa makes forward movement through a linkage assembly and drives a backrest assembly to tilt backwards synchronously, so that the sofa is switched from a sitting posture to a sitting posture or a lying posture, and is supported by a support structure, thereby improving the firmness of the sofa, but when the sofa is switched to the sitting posture or the lying posture, the head of the sofa is not effectively supported.

The Chinese patent invention with the publication number of CN113142880A provides a functional sofa mechanism with extensible legs and no back rest against the wall, which is characterized in that a rocker component and an extension component are arranged in the mechanism, when the functional sofa is in an extension state, a back rest tilts backwards and moves forwards, the normal extension of the functional sofa is not influenced by the arrangement of the back rest against the wall of the sofa, the placing space of the sofa is saved, but the functional sofa also does not have the head support function, and the head of the sofa is easy to touch the wall surface in the extension process.

Accordingly, the present invention is directed to a functional extension sofa with a head support structure that solves the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a functional extension sofa with a head support structure, and solves the problems that the head of the functional sofa is not supported when the functional sofa is extended, so that the comfort level is poor, and particularly the head of the functional sofa is easy to touch the wall when the backrest of the functional sofa without leaning against the wall is inclined backwards.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a functional sofa that extends with head bearing structure, functional sofa that extends includes back, base and linkage subassembly, the back passes through the linkage subassembly and sets up in the base top, and the back carries out hypsokinesis and antedisplacement through the linkage subassembly, realizes that functional sofa that extends switches to sitting prone position or decubitus by the position of sitting, and the back leans forward and antedisplacement through the linkage subassembly, realizes that functional sofa that extends switches to the position of sitting by sitting prone position or decubitus, and its innovation point lies in: the functional extension sofa further comprises a head support assembly arranged on one side of the backrest;

the head support assembly comprises a head support plate and a transmission rod, the head support plate is arranged above the transmission rod, one side of the transmission rod is rotatably connected to a base, the other side of the transmission rod is rotatably connected with one side of the head support plate through a rotating shaft, a first limiting moving block is arranged on one side of the rotating shaft, which is close to the backrest, a second limiting moving block is arranged on one side of the head support plate, which is close to the backrest, a groove for accommodating the first limiting moving block and the second limiting moving block is formed in one side of the backrest, the first limiting moving block and the second limiting moving block are arranged in the groove and move up and down along the direction of the groove, and the head support plate is limited on one side of the backrest and can be extended out and retracted.

Further, the head support assembly further comprises a neck support plate, the neck support plate is of an arc-shaped structure, and the neck support plate is arranged above one side, far away from the transmission rod, of the head support plate.

Furthermore, the neck support plate is made of elastic materials, the head support plate is rotatably connected with the transmission rod through a first connecting rod, one side, far away from the transmission rod, of the neck support plate is rotatably connected to one side, far away from the transmission rod, of the head support plate, the other side of the neck support plate is connected with the first connecting rod through a second connecting rod, one side of the second connecting rod is fixedly connected with the first connecting rod, and the other side of the second connecting rod is rotatably connected with the neck support plate;

the head support plate is fixedly connected with a first connecting rod through a spring, a cavity for accommodating the spring is formed in the first connecting rod, the spring is arranged in the first connecting rod, one side, close to the transmission rod, of the head support plate penetrates through the first connecting rod and is fixedly connected with the spring, and the other end of the spring is fixedly connected to one side, close to the transmission rod, in the first connecting rod;

one side of the head supporting plate, which is close to the transmission rod, is provided with a limiting block, and the limiting block is arranged inside the first connecting rod.

The utility model has the advantages that:

(1) according to the sofa, the head supporting assembly is arranged, when the backrest tilts backwards and moves forwards, the first limiting moving block and the second limiting moving block move upwards along the groove, the head supporting plate extends out to support the head, the comfort level is improved, particularly, when the sofa is placed by leaning against the wall, the head can be effectively prevented from touching the wall, when the backrest tilts forwards and moves backwards, the first limiting moving block and the second limiting moving block move downwards along the first groove, and the head supporting plate is retracted, so that the comfort level of the sofa in a sitting posture is not influenced.

(2) According to the utility model, the neck support plate with the arc-shaped structure is arranged, so that when the head support plate extends out to support the head, the neck can be supported, and the comfort level is improved.

(3) According to the sofa, the neck support plate is made of elastic materials, and the transmission rod, the first limiting moving block, the first connecting rod, the second connecting rod, the head support plate, the second limiting moving block and the spring are matched with each other, when the backrest tilts backwards and moves forwards, the head support plate and the neck support plate gradually extend out, the neck support plate gradually arches upwards from a plane structure to form an arc structure, neck and head are effectively supported, when the backrest tilts forwards and moves backwards, the neck support plate gradually changes from the arc structure to the plane structure, the head support plate and the neck support plate are gradually recovered, and the sofa recovers the original sitting posture state.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of a functional extension sofa with a head support structure according to the present invention;

FIG. 2 is a partial cross-sectional view of the head support assembly of the present invention;

FIG. 3 is a schematic view of a functional extension sofa with a head support structure according to the present invention in a sitting or lying position;

fig. 4 is a sitting position diagram of the functional extension sofa with the head support structure according to the present invention.

Reference numbers in the figures: 1. a backrest; 101. a groove; 2. a base; 3. a linkage assembly; 4. a head support assembly; 401. a head support plate; 402. a transmission rod; 403. a first pin; 404. a rotating shaft; 405. a first limit moving block; 406. a second limit moving block; 407. a neck support plate; 408. a first connecting rod; 409. a spring; 410. a limiting block; 411. a second pin; 412. a second connecting rod; 413. a third pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, the functional extension sofa with a head support structure comprises a backrest 1, a base 2 and a linkage component 3, wherein the backrest 1 is arranged above the base 2 through the linkage component 3, the backrest 1 tilts backwards and moves forwards through the linkage component 3, so that the functional extension sofa is switched from a sitting posture to a sitting posture or a lying posture, the backrest 1 tilts forwards and moves backwards through the linkage component 3, and the functional extension sofa is switched from the sitting posture or the lying posture to the sitting posture.

The functional extension sofa further comprises a head supporting assembly 4 arranged on one side of the backrest 1, the head supporting assembly 4 comprises a head supporting plate 401 and a transmission rod 402, the head supporting plate 401 is arranged above the transmission rod 402, one side of the transmission rod 402 is rotatably connected to the base 2 through a first pin 403, the other side of the transmission rod 402 is rotatably connected with one side of the head supporting plate 401 through a rotating shaft 404, one side of the rotating shaft 404, which is close to the backrest 1, is provided with a first limiting moving block 405 in a T-shaped structure, one side of the head supporting plate 401, which is close to the backrest 1, is provided with a second limiting moving block 406, one side of the backrest 1, which is close to the head supporting plate 401, is provided with a groove 101 for accommodating the first limiting moving block 405 and the second limiting moving block 406, and the first limiting moving block 405 and the second limiting moving block 406 are arranged in the groove 101 and move up and down along the direction of the groove 101.

The head support assembly further comprises a neck support plate 407, the neck support plate 407 is disposed above a side of the head support plate 401 away from the transmission rod 402, the neck support plate 407 is made of an elastic material, the head support plate 401 is rotatably connected to the transmission rod 402 through a first connection rod 408, the head support plate 401 is fixedly connected to the first connection rod 408 through a spring 409, a cavity for accommodating the spring 409 is formed inside the first connection rod 408, the spring 409 is disposed inside the first connection rod 408, a side of the head support plate 401 close to the transmission rod 402 penetrates through a side wall of the first connection rod 408 away from the transmission rod 402 to be fixedly connected to the spring 409, the other end of the spring 409 is fixedly connected to a side of the first connection rod 408 close to the transmission rod, a limit block 410 is disposed at a side of the head support plate 401 close to the transmission rod 402, the limit block 410 is disposed inside the first connection rod 408, and the limit block 410 is under the action of the spring 409, one side of the limiting block 410, which is far away from the transmission side, is always attached to the inner wall of one side of the first connecting rod 408, which is far away from the transmission side.

One side of the neck support plate 407 far away from the transmission rod 402 is rotatably connected to one side of the head support plate 401 far away from the transmission rod 402 through a second pin 411, the other side of the neck support plate 407 is connected to the first connection rod 408 through a second connection rod 412, one side of the second connection rod 412 is fixedly connected to the first connection rod 408, and the other side of the second connection rod 412 is rotatably connected to the neck support plate 407 through a third pin 413.

The working principle is as follows: when the backrest tilts backwards and moves forwards, the bottom end of the driving rod 402 is driven to rotate around the first pin 403 by the first limit moving block 405, the top end of the driving rod 402 pushes the first connecting rod 408 to continuously move upwards along the direction of the groove 101 by the rotating shaft 404, the head supporting plate 401 and the neck supporting plate 407 gradually extend out, and the second limit moving block 406 is driven to move upwards along the direction of the groove 101, at this time, the neck supporting plate 407 is in a plane structure, when the second limit moving block 406 moves upwards to the end of the groove 101, the top end of the neck supporting plate 407 and the head supporting plate 401 stop moving, while the first connecting rod 408 continues to move upwards by the compression spring 409, the second connecting rod 412 is pushed to continue to move upwards, at this time, the bottom end of the neck supporting plate 407 rotates around the third pin 413 and the top end around the second pin 411, so that the neck supporting plate 407 arches upwards to form an arc structure to support the neck and the head, and the sofa is switched from a sitting posture to a lying posture or a lying posture, as shown in fig. 3, and the above-mentioned reverse operation is performed, the sofa is restored to the original sitting position, as shown in fig. 4.

According to the functional extension sofa with the head support structure, the head is supported when the functional sofa is extended, the comfort level is improved, and particularly, the head is prevented from touching the wall when the backrest of the functional sofa without leaning against the wall is inclined backwards.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and such changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a functional sofa that extends with head bearing structure, functional sofa that extends includes back, base and linkage subassembly, the back passes through the linkage subassembly and sets up in the base top, and the back carries out hypsokinesis and antedisplacement through the linkage subassembly, realizes that functional sofa that extends switches to sitting prone position or decubitus by the position of sitting, and the back leans forward and antedisplacement through the linkage subassembly, realizes that functional sofa that extends switches to the position of sitting, its characterized in that by sitting prone position or decubitus: the functional extension sofa further comprises a head support assembly arranged on one side of the backrest;

2. The functional extension sofa with head support structure as claimed in claim 1, wherein: the head supporting assembly further comprises a neck supporting plate, the neck supporting plate is of an arc-shaped structure, and the neck supporting plate is arranged above one side, far away from the transmission rod, of the head supporting plate.

3. The functional extension sofa with head support structure as claimed in claim 2, wherein: the neck support plate is made of elastic materials, the head support plate is rotatably connected with the transmission rod through a first connecting rod, one side, far away from the transmission rod, of the neck support plate is rotatably connected to one side, far away from the transmission rod, of the head support plate, the other side of the neck support plate is connected with the first connecting rod through a second connecting rod, one side of the second connecting rod is fixedly connected with the first connecting rod, and the other side of the second connecting rod is rotatably connected with the neck support plate;