Adjustable headrest and multifunctional modular chair

Abstract

The utility model relates to an adjustable headrest and a multifunctional modular chair. The adjustable headrest comprises a headrest main body, a supporting piece and a pore plate, the pore plate and the headrest main body are sequentially and fixedly connected, the pore plate is provided with holes which are sequentially arranged from top to bottom, the headrest main body is provided with a sliding groove, the lower end of the supporting piece is fixedly connected with a chair back, the supporting piece is provided with a sliding piece, and the sliding piece is arranged between the pore plate and the headrest main body; a rubber part is arranged on the side, opposite to the headrest body, of the sliding part, the rubber part can slide up and down in the sliding groove, a shifting bead is arranged on the side, opposite to the hole plate, of the sliding part, the shifting bead can be located in any hole in the hole plate when the headrest body is lifted, and multi-gear adjustment of the headrest body is achieved. Compared with the prior art, the headrest can be adjusted in an up-down sliding mode, sliding limiting is arranged on the front side and the rear side of the headrest, adjustment is stable, and the headrest can be adjusted in a balanced sliding mode; the headrest cannot twist left and right due to the design of the rubber part; and quick assembly is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to an adjustable headrest and a multi-functional modular chair. Background Art

[0002] In the prior art, the headrest can be adjusted to slide up and down, but the limit is unstable, the sliding adjustment is unstable, the comfort of the balanced sliding adjustment cannot be achieved, and quick installation cannot be realized.

[0003] Patent CN201521141781.2 discloses a lifting mechanism for the cooperation of a chair backrest and a chair headrest: including a chair backrest and a chair headrest, the chair headrest is provided with a plug rod extending downward, the chair backrest is provided with a plug rod hole corresponding to the plug rod, an elastic tongue is arranged on the front side surface in the plug rod hole, a plurality of tongue grooves corresponding to the elastic tongue are arranged on the front surface of the plug rod from top to bottom, a guide groove is arranged on the rear surface of the plug rod, and a guide protrusion corresponding to the guide groove is arranged on the rear side surface in the plug rod hole. The beneficial effect is that when it is necessary to lift the chair headrest, the work of lifting the chair headrest can be completed only by one-handed operation, and the whole operation process is relatively simple. However, the sliding adjustment is realized through the guide groove and the guide protrusion, and the sliding adjustment is unstable and the comfort is poor. Summary of the Utility Model

[0004] The purpose of the present utility model is to overcome the above-mentioned defects in the prior art, such as unstable limit, unstable sliding adjustment, poor comfort of balanced sliding adjustment, and inability to realize quick installation, and provide an adjustable headrest and a multi-functional modular chair.

[0005] The purpose of the present utility model can be achieved by the following technical solutions:

[0006] The present utility model provides an adjustable headrest, including a headrest main body, a support member, and a hole plate;

[0007] The hole plate and the headrest main body are fixedly connected in sequence. The hole plate is provided with holes arranged in sequence from top to bottom. The headrest main body is provided with a sliding groove. The lower end of the support member is fixedly connected to the chair backrest. The support member is provided with a sliding member, and the sliding member is arranged between the hole plate and the headrest main body;

[0008] A rubber member is arranged on the side of the sliding member facing the headrest main body. The rubber member can slide up and down in the sliding groove. A bead is arranged on the side of the sliding member facing the hole plate. The bead can be limited in any one of the holes on the hole plate when the headrest main body is lifted, realizing multi-gear adjustment of the headrest main body.

[0009] Further, the sliding groove is wavy, which can play a role in limiting and make the sliding of the headrest more stable.

[0010] Further, the hole plate is provided with ten holes, which can realize ten-gear adjustment.

[0011] Further, openings are provided on both sides of the sliding member. The openings are used to quickly insert nuts, and after tightening the screws, the sliding member and the support member can be quickly fixed.

[0012] Further, the rubber part is a cylindrical rubber part.

[0013] Further, the orifice plate and the headrest main body are sequentially fixedly connected by screws.

[0014] Further, the lower end of the support member is fixedly connected to the chair back by screws.

[0015] Further, the adjustable range of the headrest is 72 mm.

[0016] Further, both ends of the sliding member are connected to the support member by screws.

[0017] The present utility model also provides a multifunctional modular chair, which includes a chair back module, a headrest module, a base, an armrest module, and a chair leg module. One of a back tilt module, a synchronous tilt module, and a seat sliding module is provided on the back of the base. The armrest module is detachably connected to the base, and the above-mentioned adjustable headrest is also included.

[0018] Compared with the prior art, the present utility model has the following advantages:

[0019] (1) The headrest of the present utility model can be adjusted to slide up and down, and there are sliding limits on the front and rear sides of the headrest, so that the adjustment is stable and the headrest can be evenly adjusted; the design of the rubber part makes the headrest not twist left and right, enhancing the comfort.

[0020] (2) Quick installation is realized. Openings are provided on the sliding member, and the openings are used to quickly insert nuts. After tightening the screws, the quick fixed installation of the sliding member and the support member is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the adjustable headrest Figure 1 ;

[0022] Figure 2 is an exploded view of the adjustable headrest;

[0023] Figure 3 is a schematic structural view of the adjustable headrest Figure 2 ;

[0024] Figure 4 is a schematic structural view of the orifice plate Figure 1 ;

[0025] Figure 5 is a schematic structural view of the orifice plate Figure 2 ;

[0026] Figure 6 It is a schematic structural diagram of the sliding member.

[0027] Reference numerals: 1 - headrest main body; 2 - support member; 4 - orifice plate; 5 - orifice; 6 - sliding groove; 7 - sliding member; 8 - bead; 9 - rubber member; 10 - opening. Detailed implementation manners

[0028] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Features such as component models, material names, connection structures, control methods, algorithms, etc. that are not clearly described in this technical solution are regarded as common technical features disclosed in the prior art.

[0029] Embodiment 1

[0030] This embodiment provides an adjustable headrest, as shown in Figure 1 , Figure 2 , Figure 3 , including a headrest main body 1, a support member 2, and an orifice plate 4;

[0031] As shown in Figure 4 , 5 , the orifice plate 4 and the headrest main body 1 are fixedly connected in sequence. The orifice plate 4 is provided with orifices 5 arranged in sequence from top to bottom. The headrest main body 1 is provided with a sliding groove 6. The lower end of the support member 2 is fixedly connected to the backrest. The support member 2 is provided with a sliding member 7, and the sliding member 7 is arranged between the orifice plate 4 and the headrest main body 1;

[0032] As shown in Figure 6 , a rubber member 9 is provided on the side of the sliding member 7 opposite to the headrest main body 1. The rubber member 9 can slide up and down in the sliding groove 6. A bead 8 is provided on the side of the sliding member 7 opposite to the orifice plate 4. The bead 8 can be positioned in any one of the orifices 5 on the orifice plate 4 when the headrest main body 1 is lifted, realizing multi - gear adjustment of the headrest main body 1.

[0033] In the detailed implementation manner, the sliding groove 6 is wavy, which can play a limiting role and make the sliding of the headrest more stable.

[0034] In the detailed implementation manner, the orifice plate 4 is provided with ten orifices 5, which can achieve ten - gear adjustment.

[0035] In the detailed implementation manner, openings 10 are provided on both sides of the sliding member 7. The openings 10 are used to quickly insert nuts, and after tightening the screws through the nuts, the sliding member 7 can be quickly fixed to the support member 2.

[0036] In the detailed implementation manner, the rubber member 9 is a cylindrical rubber member 9.

[0037] In the detailed implementation manner, the orifice plate 4 and the headrest main body 1 are fixedly connected in sequence by screws.

[0038] In a specific embodiment, the lower end of the support member 2 is fixedly connected to the chair back by screws.

[0039] In a specific embodiment, the adjustable range of the headrest is 72 mm.

[0040] In a specific embodiment, both ends of the sliding member 7 are connected to the support member 2 by screws.

[0041] The present utility model also provides a multi-functional modular chair, which includes a chair back module, a headrest module, a base, an armrest module, and a chair leg module. One of a back tilt module, a synchronous tilt module, and a seat sliding module is provided on the back of the base. The armrest module is detachably connected to the base, and the above adjustable headrest is further included.

[0042] The components not described in detail in this embodiment are all existing components that can be purchased from public channels.

[0043] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present utility model should be within the protection scope of the present utility model.

Claims

1. An adjustable headrest, characterized in that, It includes a headrest main body (1), a support member (2), and a perforated plate (4); The perforated plate (4) and the headrest main body (1) are fixedly connected in sequence. The perforated plate (4) is provided with holes (5) arranged in sequence from top to bottom. The headrest main body (1) is provided with a sliding groove (6). The lower end of the support member (2) is fixedly connected to the backrest. The support member (2) is provided with a sliding member (7), and the sliding member (7) is arranged between the perforated plate (4) and the headrest main body (1); On one side of the sliding member (7) opposite to the headrest main body (1), there is a rubber member (9). The rubber member (9) can slide up and down in the sliding groove (6). On one side of the sliding member (7) opposite to the perforated plate (4), there is a detent ball (8). The detent ball (8) can be limited in any one of the holes (5) on the perforated plate (4) when the headrest main body (1) is lifted, realizing multi - gear adjustment of the headrest main body (1).

2. The adjustable headrest according to claim 1, characterized in that, The sliding groove (6) is wavy, which can play a limiting role and make the sliding of the headrest more stable.

3. The adjustable headrest according to claim 1, wherein, The perforated plate (4) is provided with ten holes (5), which can realize ten - gear adjustment.

4. The adjustable headrest according to claim 1, wherein Both sides of the sliding member (7) are provided with openings (10). The openings (10) are used to put nuts, and after tightening the screws through the nuts, the quick fixation of the sliding member (7) and the support member (2) is realized.

5. The adjustable headrest according to claim 1, characterized in that, The rubber member (9) is a cylindrical rubber member (9).

6. An adjustable headrest according to claim 1, characterized in that, The perforated plate (4) and the headrest main body (1) are fixedly connected in sequence by screws.

7. An adjustable headrest according to claim 1, characterized in that, The lower end of the support member (2) is fixedly connected to the backrest by screws.

8. An adjustable headrest according to claim 1, characterized in that, The adjustable range of the headrest is 72 mm.

9. An adjustable headrest according to claim 1, characterized in that, Both ends of the sliding member (7) are connected to the support member (2) by screws.

10. A multi-functional modular chair, the chair comprising a backrest module, a headrest module, a base, an armrest module, and a chair leg module, wherein one of a back tilt module, a synchronous tilt module, and a seat sliding module is provided on the back of the base, and the armrest module is detachably connected to the base, and is characterized in that, It also includes an adjustable headrest as described in any one of claims 1 - 9.

Images