CN219229445U

CN219229445U - Sofa capable of adjusting backrest

Info

Publication number: CN219229445U
Application number: CN202223316657.8U
Authority: CN
Inventors: 王光勋; 王娜; 谢刚; 王建; 王光波
Original assignee: Xianghe Yincai Furniture Co ltd
Current assignee: Xianghe Yincai Furniture Co ltd
Priority date: 2022-12-10
Filing date: 2022-12-10
Publication date: 2023-06-23
Anticipated expiration: 2032-12-10

Abstract

The utility model provides a sofa capable of adjusting a backrest, and relates to the technical field of furniture articles, comprising a base and armrests fixedly arranged at the top of the base, wherein one side of the base is provided with an adjusting mechanism, and one side of the adjusting mechanism is provided with a driving assembly; the adjusting mechanism comprises a back cushion, a first rotating shaft and a second rotating shaft, wherein the first rotating shaft is fixedly connected with the back cushion, two ends of the first rotating shaft are fixedly connected with spur gears, two ends of the second rotating shaft are respectively and rotatably connected with inner side walls of two first mounting grooves, two outer side walls of the second rotating shaft are fixedly connected with turning wheels, and the two turning wheels are respectively meshed with the two spur gears. The device can automatically adjust the use angle of the back pad through the air cylinder, and is very convenient and quick; and the reinforcing rod is driven to rotate while the back cushion is regulated, so that the back cushion can be supported, and the stability of the back cushion in use is improved.

Description

Sofa capable of adjusting backrest

Technical Field

The utility model belongs to the technical field of furniture articles, and particularly relates to a sofa capable of adjusting a backrest.

Background

Sofa is a common furniture, is a multi-seat chair with cushions, and is generally used in living rooms. The general sofa is rectangular shape, and the sofa includes base and cushion, and the base is used for making the cushion, along with the development of society, people's living standard is also constantly improving, consequently also is constantly improving the operation requirement to the sofa.

Based on the above, the present inventors found that the following problems exist: 1. the existing sofa is relatively fixed when in use, and the back cushion is not easy to adjust; 2. the stability of the back cushion of the partial sofa after adjustment is lower.

Accordingly, the present utility model has been made in view of the above circumstances, and an object of the present utility model is to provide a sofa with a backrest adjustable to achieve a more practical value.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a sofa capable of adjusting a backrest, which solves the problems that the existing back cushion is not easy to adjust and the stability is low after adjustment.

The utility model discloses a sofa capable of adjusting a backrest, which is achieved by the following specific technical means:

the sofa capable of adjusting the backrest comprises a base and armrests fixedly mounted at the top of the base, wherein an adjusting mechanism is arranged on one side of the base, and a driving assembly is arranged on one side of the adjusting mechanism;

the adjusting mechanism comprises a back cushion, a first rotating shaft and a second rotating shaft, wherein the first rotating shaft is fixedly connected with the back cushion, two first mounting grooves are formed in one side of the base, two ends of the first rotating shaft are respectively connected with the two first mounting grooves in a rotating mode, spur gears are fixedly connected to two ends of the first rotating shaft respectively, two ends of the second rotating shaft are respectively connected with inner side walls of the two first mounting grooves in a rotating mode, turning wheels are fixedly connected to the outer side walls of the second rotating shaft respectively, and the turning wheels are meshed with the two spur gears respectively.

Further, the drive assembly includes cylinder, connecting plate and slide, second mounting groove, first spout and two second spouts have been seted up to base one side, cylinder fixed mounting is inside the second mounting groove, slide and first spout inside wall sliding connection, connecting plate one side and cylinder output fixed connection, connecting plate upper surface and slide lower surface fixed connection, slide both sides equal fixedly connected with rack, two the rack meshes with two diversion wheels respectively, and two rack respectively with two second spout inside wall sliding connection.

Further, a baffle is welded at the bottom of the connecting plate.

Furthermore, movable seats are fixedly arranged at the top of the sliding plate and on one side of the back pad, and reinforcing rods are rotatably connected between the two movable seats.

Further, the base is internally provided with a dust removal assembly, the dust removal assembly comprises an elastic air bag, the elastic air bag is fixedly arranged in the first sliding groove, one side of the elastic air bag is fixedly connected with a plurality of guide pipes, one end of the sliding plate is welded with a pressing plate, and the pressing plate is in butt joint with the elastic air bag.

Further, dustproof nets are arranged at one ends of the plurality of guide pipes.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the connecting plate and the sliding plate are driven to horizontally move through the air cylinder, so that racks on two sides of the sliding plate are driven to horizontally move, the turning wheel and the second rotating shaft can be driven to rotate under the action of meshing of the racks and the turning wheel, and the spur gear and the first rotating shaft can be driven to reversely rotate under the action of meshing of the turning wheel and the spur gear, so that the use angle of the back pad can be automatically adjusted, and the back pad is very convenient and quick.

According to the utility model, the slide plate horizontally slides along the first slide groove and can drive the reinforcing rod to rotate, so that the back pad can be supported, and the stability of the back pad in use is improved.

When the sliding plate reversely slides, the pressing plate at one end of the sliding plate can contact and press the elastic air bag, and the elastic air bag is compressed, so that air in the elastic air bag is blown on the upper surface of the sliding plate through the guide pipe, the purpose of removing dust on the surface of the sliding plate is achieved, and the dust is effectively prevented from entering the first sliding groove along with the sliding plate.

Drawings

Fig. 1 is a schematic view of the external overall structure of the present utility model.

Fig. 2 is a schematic partial cross-sectional view of the present utility model.

Fig. 3 is a schematic view of the structure of the base of the present utility model.

Fig. 4 is an enlarged schematic view of fig. 1 at a in accordance with the present utility model.

In the figure, the correspondence between the component names and the drawing numbers is:

1. a base; 11. an armrest; 2. an adjusting mechanism; 21. a back pad; 22. a first rotation shaft; 23. spur gears; 24. a first mounting groove; 25. a second rotation shaft; 26. a direction-changing wheel; 3. a drive assembly; 31. a cylinder; 32. a connecting plate; 33. a second mounting groove; 34. a slide plate; 35. a first chute; 36. a rack; 37. a second chute; 38. a baffle; 4. a movable seat; 41. a reinforcing rod; 5. a dust removal assembly; 51. an elastic air bag; 52. a conduit; 53. a pressing plate; 54. a dust-proof net.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

as shown in fig. 1 to 4:

the sofa capable of adjusting the backrest comprises a base 1 and armrests 11 fixedly arranged at the top of the base 1, wherein an adjusting mechanism 2 is arranged on one side of the base 1, and a driving assembly 3 is arranged on one side of the adjusting mechanism 2;

the adjusting mechanism 2 comprises a back cushion 21, a first rotating shaft 22 and a second rotating shaft 25, wherein the first rotating shaft 22 is fixedly connected with the back cushion 21, two first mounting grooves 24 are formed in one side of the base 1, two ends of the first rotating shaft 22 are respectively and rotatably connected with the two first mounting grooves 24, spur gears 23 are fixedly connected with two ends of the first rotating shaft 22, two ends of the two second rotating shafts 25 are respectively and rotatably connected with inner side walls of the two first mounting grooves 24, turning wheels 26 are fixedly connected with outer side walls of the two second rotating shafts 25, and the two turning wheels 26 are respectively meshed with the two spur gears 23; by providing the turning force of the turning wheel 26, the use angle of the back pad 21 can be automatically adjusted, and the operation is very convenient and quick.

The driving assembly 3 comprises an air cylinder 31, a connecting plate 32 and a sliding plate 34, wherein a second mounting groove 33, a first sliding groove 35 and two second sliding grooves 37 are formed in one side of the base 1, the air cylinder 31 is fixedly arranged in the second mounting groove 33, the sliding plate 34 is slidably connected with the inner side wall of the first sliding groove 35, one side of the connecting plate 32 is fixedly connected with the output end of the air cylinder 31, the upper surface of the connecting plate 32 is fixedly connected with the lower surface of the sliding plate 34, racks 36 are fixedly connected with two sides of the sliding plate 34, the two racks 36 are respectively meshed with the two steering wheels 26, and the two racks 36 are respectively slidably connected with the inner side walls of the two second sliding grooves 37; when the use angle of the back pad 21 needs to be adjusted, the air cylinder 31 is started, the air cylinder 31 drives the driving rod to extend, the connecting plate 32 and the sliding plate 34 are driven to horizontally move, so that racks 36 on two sides of the sliding plate 34 are driven to horizontally move, the turning wheel 26 and the second rotating shaft 25 can be driven to rotate under the action of meshing of the racks 36 and the turning wheel 26, and the spur gear 23 and the first rotating shaft 22 can be driven to reversely rotate under the action of meshing of the turning wheel 26 and the spur gear 23.

Wherein, the baffle 38 is welded at the bottom of the connecting plate 32; the baffle 38 may block the gap between the connection plate 32 and the second mounting groove 33 when the connection plate 32 slides, so that dust may be prevented from entering the second mounting groove 33.

Wherein, the top of the sliding plate 34 and one side of the back pad 21 are fixedly provided with movable seats 4, and a reinforcing rod 41 is rotatably connected between the two movable seats 4; the sliding plate 34 can drive the reinforcing rod 41 to rotate while sliding horizontally along the first sliding groove 35, so that the back pad 21 can be supported, and the stability of the back pad 21 in use is improved.

The dust removing assembly 5 is arranged in the base 1, the dust removing assembly 5 comprises an elastic air bag 51, the elastic air bag 51 is fixedly arranged in the first chute 35, one side of the elastic air bag 51 is fixedly connected with a plurality of guide pipes 52, one end of the sliding plate 34 is welded with a pressing plate 53, and the pressing plate 53 is abutted with the elastic air bag 51; when the sliding plate 34 slides reversely, the pressing plate 53 at one end of the sliding plate 34 contacts and presses the elastic air bag 51, the elastic air bag 51 is compressed, so that air in the elastic air bag is blown on the upper surface of the sliding plate 34 through the guide pipe 52, the purpose of cleaning dust on the surface of the sliding plate 34 is achieved, and the dust is effectively prevented from entering the first sliding groove 35 along with the sliding plate 34.

Wherein, one end of each of the plurality of guide pipes 52 is provided with a dust screen 54; the dust screen 54 prevents external dust from entering the duct 52, effectively avoiding clogging of the duct 52.

Specific use and action of the embodiment:

in the utility model, the back cushion 21 is rotationally connected with the base 1 through the first rotating shaft 22, when the use angle of the back cushion 21 needs to be adjusted, the air cylinder 31 is started, the air cylinder 31 drives the driving rod to extend, the connecting plate 32 and the sliding plate 34 are driven to horizontally move, so that racks 36 on two sides of the sliding plate 34 are driven to horizontally move, under the action of meshing of the racks 36 and the steering wheel 26, the steering wheel 26 and the second rotating shaft 25 can be driven to rotate, under the action of meshing of the steering wheel 26 and the spur gear 23, the spur gear 23 and the first rotating shaft 22 can be driven to reversely rotate, and therefore, the use angle of the back cushion 21 can be automatically adjusted, and the back cushion is very convenient and quick; the slide plate 34 can drive the reinforcing rod 41 to rotate while sliding horizontally along the first slide groove 35, so that the back pad 21 can be supported, and the stability of the back pad 21 in use is improved; when the sliding plate 34 slides reversely, the pressing plate 53 at one end of the sliding plate 34 contacts and presses the elastic air bag 51, the elastic air bag 51 is compressed, so that air in the elastic air bag is blown on the upper surface of the sliding plate 34 through the guide pipe 52, the purpose of cleaning dust on the surface of the sliding plate 34 is achieved, and the dust is effectively prevented from entering the first sliding groove 35 along with the sliding plate 34.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a sofa that can adjust back, includes base (1) and fixed mounting in handrail (11) at base (1) top, its characterized in that: an adjusting mechanism (2) is arranged on one side of the base (1), and a driving assembly (3) is arranged on one side of the adjusting mechanism (2);

the utility model provides an adjusting mechanism (2) is including back up (21), first rotation axis (22) and second rotation axis (25), first rotation axis (22) and back up (21) fixed connection, two first mounting groove (24) have been seted up to base (1) one side, first rotation axis (22) both ends respectively with two first mounting groove (24) swivelling joint, just first rotation axis (22) both ends equal fixedly connected with spur gear (23), two second rotation axis (25) both ends respectively with two first mounting groove (24) inside wall swivelling joint, and two equal fixedly connected with directive wheel (26) of second rotation axis (25) lateral wall, two directive wheel (26) mesh with two spur gears (23) respectively.

2. The sofa of claim 1 wherein the back rest is adjustable, wherein: the driving assembly (3) comprises an air cylinder (31), a connecting plate (32) and a sliding plate (34), wherein a second mounting groove (33), a first sliding groove (35) and two second sliding grooves (37) are formed in one side of the base (1), the air cylinder (31) is fixedly arranged inside the second mounting groove (33), the sliding plate (34) is in sliding connection with the inner side wall of the first sliding groove (35), one side of the connecting plate (32) is fixedly connected with the output end of the air cylinder (31), the upper surface of the connecting plate (32) is fixedly connected with the lower surface of the sliding plate (34), racks (36) are fixedly connected to two sides of the sliding plate (34), the racks (36) are meshed with two turning wheels (26) respectively, and the racks (36) are in sliding connection with the inner side walls of the two second sliding grooves (37) respectively.

3. The sofa of claim 2 wherein the back rest is adjustable, wherein: a baffle (38) is welded at the bottom of the connecting plate (32).

4. The sofa of claim 2 wherein the back rest is adjustable, wherein: the top of the sliding plate (34) and one side of the back pad (21) are fixedly provided with movable seats (4), and a reinforcing rod (41) is rotatably connected between the two movable seats (4).

5. The sofa of claim 2 wherein the back rest is adjustable, wherein: the dust removal device is characterized in that the dust removal assembly (5) is arranged inside the base (1), the dust removal assembly (5) comprises an elastic air bag (51), the elastic air bag (51) is fixedly arranged inside the first sliding groove (35), a plurality of guide pipes (52) are fixedly connected to one side of the elastic air bag (51), a pressing plate (53) is welded at one end of the sliding plate (34), and the pressing plate (53) is abutted to the elastic air bag (51).

6. The sofa of claim 5 wherein the back rest is adjustable, wherein: a dust screen (54) is arranged at one end of each of the plurality of guide pipes (52).