CN212465483U

CN212465483U - Sofa backrest connecting device

Info

Publication number: CN212465483U
Application number: CN202021139689.3U
Authority: CN
Inventors: 于占友; 于占录; 张雷
Original assignee: Huizhou Yuebangjia Smart Home Technology Co ltd
Current assignee: Huizhou Yuebang Zhilian Technology Co.,Ltd.
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-02-05
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a sofa backrest connecting device, including the back mount, the equal fixedly connected with link of back mount both sides outer wall, and one of them link one side outer wall fixedly connected with slide bar one, back mount below is provided with the angle modulation post, and the angle modulation post both ends are equipped with regulating box and slip case respectively, two internal gears of regulating box one side inner wall fixedly connected with, and one of them internal gear outer wall fixedly connected with bearing, bearing outer wall fixed connection is in the regulating box inner wall, slide bar one side outer wall fixedly connected with gear, and the gear meshes with the internal gear mutually. The utility model discloses a set up the gear can respectively with the internal gear meshing, can play the effect of fixed back mount on the one hand, on the other hand can carry out angular adjustment through gear and internal gear meshing rotation, can adjust the back mount to the suitable angle of user, lets the user more comfortable, avoids because the back contained angle is improper and the health that causes is tired.

Description

Sofa backrest connecting device

Technical Field

The utility model relates to the field of furniture, especially, relate to sofa backrest connecting device.

Background

The "sofa" is a foreign word, which is transliterated according to the English word sofa. The chair is a multi-seat chair with soft cushion, the chair is a backrest chair with spring or thick foam plastics, etc., the two sides of the chair are provided with armrests, the chair is one of soft furniture, and the types of the sofa can be divided into a functional sofa, a fixed backrest sofa, a stepless automatic control sofa, a pneumatic sofa (namely a manual sofa), an electric sofa, a sofa with television, etc.

The sofa is necessary furniture for many families, the sofa used by most families at present can obtain the effect of a curved surface matched with the back of a body by using two supporting points to support the lumbar vertebra and the thoracic vertebra of a user, the abdominal muscle of the user is strong and fatigue is generated due to the fact that the included angle between the backrest and the sofa base is too large or too small, and the included angle of the sofa is fixed and cannot be adjusted independently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a sofa backrest connecting device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

sofa backrest connecting device, including the back mount, the equal fixedly connected with link of back mount both sides outer wall, and one of them link one side outer wall fixedly connected with slide bar one, back mount below is provided with the angle modulation post, and the angle modulation post both ends are equipped with regulating box and slip case respectively, two internal gears of regulating box one side inner wall fixedly connected with, and one of them internal gear outer wall fixedly connected with bearing, bearing outer wall fixed connection is in the regulating box inner wall, the one side outer wall fixedly connected with gear of slide bar, and the gear meshes with the internal gear mutually.

Further, the outer wall of one side of the gear is fixedly connected with a second sliding rod, the outer wall of one end of the second sliding rod is connected with a fixed plate in a sliding mode, and the outer wall of the fixed plate is fixedly connected to the inner wall of the adjusting box.

Furthermore, the outer wall of one end of the gear is fixedly connected with a return spring, and the outer wall of one side of the return spring is fixedly connected with the outer wall of one side of the fixing plate.

Furthermore, the reset spring is sleeved on the outer wall of the second sliding rod, and a limiting block is fixedly connected to the outer wall of one side of the second sliding rod.

Furthermore, one of them link one side inner wall fixedly connected with slide bar three, and slide bar three and slip case sliding connection, three one end outer walls fixedly connected with stoppers of slide bar.

Furthermore, a backrest is fixedly connected to the outer wall of one side of the backrest fixing frame.

Furthermore, the outer wall of one side of the angle adjusting column is fixedly connected with a sofa base.

Furthermore, a cushion is arranged above the sofa base, and the outer walls of four corners of the bottom of the sofa base are fixedly connected with supporting legs.

Furthermore, the outer wall of one end of the top of the adjusting box is provided with a positioning groove, a positioning column is arranged in the positioning groove, and the outer wall of one end of the positioning column is hinged to the outer wall of one side of the connecting frame.

The utility model has the advantages that:

1. through setting up the gear can respectively with the internal gear meshing, can play the effect of fixed back mount on the one hand, on the other hand can carry out angular adjustment through gear and internal gear meshing rotation, can adjust the back mount to the suitable angle of user, lets the user more comfortable, avoids because the back contained angle is improper and the health that causes is tired.

2. Through setting up reset spring, can reset it after the back mount carries out angle modulation, simple and convenient operation.

3. Through setting up reference column and constant head tank, can prevent that the back mount level from removing, thereby avoid when not carrying out angle modulation, back mount horizontal migration harms equipment.

Drawings

FIG. 1 is a schematic view of the backrest connecting device of the sofa according to embodiment 1;

FIG. 2 is an enlarged view of the backrest connecting device of the sofa in accordance with the embodiment 1 at the position A;

FIG. 3 is an enlarged view of the backrest connecting device of the sofa in accordance with the embodiment 1 at the point B;

fig. 4 is an enlarged schematic view of an adjusting box of the sofa backrest connecting device provided in embodiment 2.

In the figure: the device comprises a 1-angle adjusting column, a 2-backrest fixing frame, a 3-supporting leg, a 4-backrest, a 5-cushion, a 6-sofa base, a 7-gear, a 8-slide bar I, a 9-connecting frame, a 10-internal gear, a 11-bearing, a 12-reset spring, a 13-fixing plate, a 14-slide bar II, a 15-adjusting box, a 16-limiting block, a 17-slide bar III, an 18-sliding box, a 19-positioning groove and a 20-positioning column.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1, fig. 2 and fig. 3, sofa backrest connecting device, including backrest mount 2, the equal fixedly connected with link 9 of 2 both sides outer walls of backrest mount, and one of them link 9 one side outer wall fixedly connected with slide bar 8, backrest mount 2 below is provided with angle modulation post 1, and angle modulation post 1 both ends are equipped with regulating box 15 and slide box 18 respectively, two internal gear 10 of regulating box 15 one side inner wall fixedly connected with, and one of them internal gear 10 outer wall fixedly connected with bearing 11, bearing 11 outer wall fixed connection is in regulating box 15 inner wall, slide bar 8 one side outer wall fixedly connected with gear 7, and gear 7 meshes with internal gear 10 mutually, the user can carry out angle modulation to backrest mount 2 when using, can make more comfortable use of user.

Wherein, the outer wall of one side of the gear 7 is fixedly connected with a second sliding rod 14, the outer wall of one end of the second sliding rod 14 is slidably connected with a fixed plate 13, and the outer wall of the fixed plate 13 is fixedly connected with the inner wall of the adjusting box 15.

Wherein, the outer wall of one end of the gear 7 is fixedly connected with a return spring 12, and the outer wall of one side of the return spring 12 is fixedly connected with the outer wall of one side of the fixing plate 13, so that the backrest fixing frame 2 can be automatically reset after the angle is adjusted, and the operation is simple and convenient.

The reset spring 12 is sleeved on the outer wall of the second sliding rod 14, and a limit block 16 is fixedly connected to the outer wall of one side of the second sliding rod 14.

Wherein, one of them link 9 one side inner wall fixedly connected with slide bar three 17, and slide bar three 17 and slip case 18 sliding connection, slide bar three 17 one end outer wall fixedly connected with stopper 16.

Wherein, the outer wall of one side of the backrest fixing frame 2 is fixedly connected with a backrest 4.

Wherein, the outer wall of one side of the angle adjusting column 1 is fixedly connected with a sofa base 6.

Wherein, the cushion 5 is arranged above the sofa base 6, and the outer walls of four corners of the bottom of the sofa base 6 are fixedly connected with the support legs 3.

The working principle is as follows: when a user sits on the cushion 5 and the angle of the backrest 4 is inappropriate, the user enables the backrest fixing frame 2 to horizontally displace, the slide rod I8 fixed on the connecting frame 9 can slide from one side of the adjusting box 15 to be deep into the adjusting box 15, so that the gear 7 fixed on the slide rod I8 slides out of the internal gear 10 fixedly connected to one side of the adjusting box 15, then is meshed with the internal gear 10 fixedly connected to the bearing 11 and can rotate, the angle of the backrest fixing frame 2 can be adjusted, meanwhile, the gear 7 can compress the return spring 12, and after the angle is adjusted, the return spring 12 is reset, so that the gear 7 is restored to be in a state of being meshed and fixed with the internal gear 10 on one side of the adjusting box 15; and the sliding box 18 arranged at the other side of the angle adjusting column 1 can limit the horizontal displacement distance of the backrest fixing frame 2 through the matching with the sliding rod III 17.

Example 2

Referring to fig. 3, in the sofa backrest connecting device, compared with embodiment 1, the outer wall of one end of the top of the adjusting box 15 is provided with a positioning groove 19, and a positioning column 20 is arranged in the positioning groove 19, and the outer wall of one end of the positioning column 20 is hinged to the outer wall of one side of the connecting frame 9, so that the backrest fixing frame 2 can be horizontally limited to prevent horizontal displacement.

The working principle is as follows: compare in

embodiment

1, 15 top one end outer walls of regulating box are opened there is constant head tank 19, and be equipped with reference column 20 in the

constant head tank

19, 20 one end outer walls of reference column articulate in link 9 one side outer wall, when the angle modulation, take out reference column 20 from constant head tank 19, can let 2 horizontal migration of back mount, thereby the angle modulation, after adjusting the completion, put into constant head tank 19 with reference column 20 in, can prevent that 2 levels of back mount from removing, thereby avoid when not carrying out the angle modulation, thereby 2 horizontal migration of back mount damage equipment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Sofa backrest connecting device, including back mount (2), its characterized in that, back mount (2) both sides outer wall equal fixedly connected with link (9), and one of them link (9) one side outer wall fixedly connected with slide bar (8), back mount (2) below is provided with angle modulation post (1), and angle modulation post (1) both ends are equipped with regulating box (15) and slip case (18) respectively, two internal gear (10) of regulating box (15) one side inner wall fixedly connected with, and one of them internal gear (10) outer wall fixedly connected with bearing (11), bearing (11) outer wall fixed connection is in regulating box (15) inner wall, slide bar (8) one side outer wall fixedly connected with gear (7), and gear (7) mesh mutually with internal gear (10).

2. The sofa backrest connecting device according to claim 1, characterized in that a second sliding rod (14) is fixedly connected to the outer wall of one side of the gear (7), a fixed plate (13) is slidably connected to the outer wall of one end of the second sliding rod (14), and the outer wall of the fixed plate (13) is fixedly connected to the inner wall of the adjusting box (15).

3. The sofa backrest connecting device according to claim 2, characterized in that the outer wall of one end of the gear (7) is fixedly connected with a return spring (12), and the outer wall of one side of the return spring (12) is fixedly connected with the outer wall of one side of the fixed plate (13).

4. The sofa backrest connecting device according to claim 3, wherein the return spring (12) is sleeved on the outer wall of the second sliding rod (14), and a limiting block (16) is fixedly connected to the outer wall of one side of the second sliding rod (14).

5. The sofa backrest connecting device according to claim 1, characterized in that a third sliding rod (17) is fixedly connected to the inner wall of one side of one of the connecting frames (9), the third sliding rod (17) is slidably connected with the sliding box (18), and a limiting block (16) is fixedly connected to the outer wall of one end of the third sliding rod (17).

6. The sofa backrest connecting device according to claim 1, characterized in that the backrest (4) is fixedly connected to the outer wall of one side of the backrest fixing frame (2).

7. The sofa backrest connecting device according to claim 1, characterized in that the sofa base (6) is fixedly connected to the outer wall of one side of the angle adjusting column (1).

8. The sofa backrest connecting device according to claim 7, characterized in that a cushion (5) is arranged above the sofa base (6), and the outer walls of the four corners of the bottom of the sofa base (6) are fixedly connected with the supporting legs (3).

9. The sofa backrest connecting device according to claim 1, wherein the adjusting box (15) is provided with a positioning groove (19) on the outer wall of one end of the top, and a positioning column (20) is arranged in the positioning groove (19), and the outer wall of one end of the positioning column (20) is hinged to the outer wall of one side of the connecting frame (9).