Chair back structure and chair

Abstract

The utility model relates to the field of human life necessities, and provides a chair back structure and a chair, the chair back structure comprises a backrest and a pillow piece, the backrest is provided with a sliding seat which is vertically arranged along the height direction of the backrest; the pillow piece is located on the backrest side of the backrest and protrudes out of the surface of the backrest, the pillow piece is in sliding connection with the sliding base so that the pillow piece can serve as a headrest when moving to the upper side area of the backrest and serve as a back pillow when moving to the lower side area of the backrest, the purposes are diversified, good functionality is achieved, and when the pillow piece serves as the back pillow, the sitting posture correcting effect can be achieved; when the upper part of the human body is upright, the pillow piece can fill the gap between the back of the human body and the backrest, eliminate the suspension feeling generated by the back and well support the back of the human body, so that a user can keep a correct sitting posture, and meanwhile, the height position of the pillow piece can be adjusted according to the adaptability of users with different body types; therefore, a good supporting effect on the head or the back of a human body is ensured, and good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of human life necessities, in particular to a chair back structure and a chair. Background Art

[0002] At present, in order to improve comfort, chairs on the market are usually equipped with pillows on the top to support the head, but most of the pillows are fixed in position and cannot meet the height requirements of users of different body shapes. At the same time, in order to avoid head and neck pain caused by sitting for a long time, the correct sitting posture should be to keep the upper body upright so that the head is supported. However, in order to make the user more relaxed when leaning against the backrest of the chair, the backrest is generally tilted relative to the seat surface. Since there is a vacant space between the back and the backrest when the upper body is upright, the back will feel suspended, so it is often difficult for users to maintain a correct sitting posture and they will inertialy lean close to the backrest.

[0003] The utility model patent with application number 201820279480.3 and titled "A liftable headrest for a chair" records that a headrest is arranged at the top of the chair back, and the headrest includes a main body, a pillow, a telescopic rod, a top cover, a bottom cover, a dial button and a spring. One side of the main body is connected to one end of the pillow, a groove A is provided in the main body, the top cover is arranged at the top of the groove A, the lower surface of the top cover is connected to the bottom of the telescopic rod, the bottom of the telescopic rod is connected to the upper surface of the bottom cover, a plurality of sawtooth grooves are provided on one side of the telescopic rod, and a groove B is also provided on the lower surface of the main body. The dial button is arranged in the groove B, the bottom of the dial button is located outside the main body, the top of the dial button is arranged inside the main body, one end of the top of the dial button is arranged in the sawtooth groove, the top of the dial button is connected to the bottom of the spring, and the top of the spring is fixedly arranged on the lower surface of the outer side of the groove A. The height of the headrest can be adjusted by turning the dial button, but the headrest is always located at the top of the chair back, and can only support the head, but cannot correct the user's sitting posture, and has a single purpose. Utility Model Content

[0004] The utility model aims to provide a chair back structure and a chair, aiming to improve the problems that the chair backs of existing chairs cannot correct the sitting posture and have a single purpose.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A chair back structure, comprising:

[0007] A backrest, wherein the backrest is provided with a sliding seat vertically arranged along the height direction thereof;

[0008] A pillow member, the pillow member is located on the backrest side of the backrest and protrudes from the surface of the backrest. The pillow member is slidably connected to the sliding seat so as to serve as a headrest when moving to the upper area of ​​the backrest and as a backrest when moving to the lower area of ​​the backrest.

[0009] Preferably, it also includes a slide, which is located on the back side of the backrest and is frictionally slidable or frictionally locked with the slide seat, one end of the pillow is hinged to the slide, and the other end of the pillow is a floating end.

[0010] Preferably, the pillow member includes a mounting frame and a pillow pad, the top end of the mounting frame is hinged to the slide, a plurality of slots are arranged on the inner edge of the mounting frame, and a plurality of plug connectors matching the slots are arranged on the inner edge of the pillow pad.

[0011] Preferably, a bending portion hinged to the slide is provided at the top end of the mounting frame, and a groove for avoiding the bending portion is provided on the top surface of the backrest.

[0012] Preferably, a plurality of reinforcing ribs are provided on the back side of the backrest.

[0013] Preferably, a plurality of weight-reducing grooves are provided on the slide.

[0014] Preferably, a spine supporting portion and two symmetrically arranged shoulder blade supporting portions are provided on the back side of the backrest, and the spine supporting portion and the shoulder blade supporting portion protrude from the surface of the backrest.

[0015] Preferably, a plurality of massage ball heads are provided on the spine supporting portion, the shoulder blade supporting portion and / or the pillow.

[0016] Preferably, a plurality of ventilation holes are provided on the backrest and / or the pillow along the thickness direction.

[0017] A chair is also provided, comprising the above-mentioned chair back structure.

[0018] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0019] 1. The pillow can be moved to the upper area of ​​the backrest as a headrest to support the human head, and can also be moved to the lower area of ​​the backrest as a back pillow to support the human back. It has various uses and has good functionality and comfort.

[0020] 2. The pillow can correct the sitting posture when used as a back pillow. When the upper body of the human body is upright, the pillow can fill the empty space between the back and the backrest, eliminate the feeling of hanging in the air, provide good support for the back of the human body, and enable the user to maintain a correct sitting posture.

[0021] 3. The height of the pillow can be adjusted according to the adaptability of users of different body shapes to ensure good support for the head or back of the human body, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the chair back structure and the chair structure when the pillow member is used as a headrest according to the utility model;

[0023] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0024] Figure 3 It is a schematic diagram of the chair back structure and the chair structure when the pillow member of the utility model is used as a back pillow;

[0025] Figure 4 It is a structural schematic diagram of the chair back structure and the back side of the chair according to the utility model;

[0026] Figure 5 It is a side view of the chair back structure and the chair of the utility model;

[0027] Figure 6 This is a disassembled schematic diagram of the chair back structure and the chair of the utility model;

[0028] Figure 7 It is another disassembled schematic diagram of the chair back structure and the chair of the utility model;

[0029] Figure 8 for Figure 7 A local enlarged schematic diagram of point B in the middle.

[0030] Description of reference numerals:

[0031] 10. Backrest;

[0032] 101, sliding seat; 102, groove; 103, reinforcing rib; 104, spine supporting part;

[0033] 105. Shoulder blade support part; 1051. Massage ball head;

[0034] 11. Pillows;

[0035] 111, mounting frame; 1111, bending portion; 1112, slot; 112, pillow pad;

[0036] 1121, plug connector; 113, vent hole;

[0037] 12. Slide;

[0038] 121. Weight reduction tank. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0040] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] When an element is referred to as being “fixed to” or “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0042] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0043] Embodiment 1

[0044] Please refer to Figure 1-Figure 8 As shown, the present embodiment provides a chair back structure, including a backrest 10 and a pillow 11. The backrest 10 is provided with a slide seat 101 vertically arranged along its height direction. The slide seat 101 can be arranged on the backrest side of the backrest 10 or the back side of the backrest 10. It should be noted that the backrest side of the backrest 10 refers to the side of the backrest 10 that contacts the back of the human body, and the back side of the backrest 10 refers to the side opposite to the backrest side.

[0045] The pillow 11 is located on the backrest side of the backrest 10 and protrudes from the surface of the backrest 10 to contact the human body to provide support. The pillow 11 is slidably connected to the slide 101 and can move along the slide 101 in the vertical direction of the backrest 10, so that it can move to different areas of the backrest 10 to support the head or back of the human body, and has good functionality. For example, the pillow 11 can move along the slide 101 to the upper area of ​​the backrest 10 as a headrest to support the human head (such as Figure 1The pillow 11 can also be moved along the slide 101 to the lower area of ​​the backrest 10 as a back pillow supporting the back of the human body (as shown in FIG. Figure 3 As shown in the figure, when used as a back pillow, it can correct the sitting posture. When the upper body of the human body is upright, the pillow 11 can fill the empty space between the back of the human body and the backrest 10, eliminate the suspended feeling of the back, and provide good support for the back of the human body. The user can maintain a correct sitting posture and at the same time improve comfort.

[0046] In addition, no matter the pillow 11 is used as a headrest or a backrest, the height position of the pillow 11 can be adjusted according to the adaptability of users of different body shapes to ensure a good supporting effect on the human head or back, and has good practicality.

[0047] In a preferred embodiment, the slide 101 is vertically arranged on the back side of the backrest 10 along the height direction of the backrest 10, and also includes a slide 12 located on the back side of the backrest 10 and frictionally sliding or frictionally locking with the slide 101, that is, the slide 12 and the slide 101 are frictionally matched, and rubber can also be arranged between the slide 12 and the slide 101, or the slide 101 can be arranged as a rubber part / plastic part to increase the friction, so that the slide 12 can only slide along the slide 101 under the drive of a certain force, and after the force disappears, the slide 12 can automatically stop sliding, that is, frictionally locking with the slide 101, so that the height position of the pillow 11 is fixed, and the height of the pillow 11 is convenient to adjust. And because the slide 101 and the slide 12 are both located on the back side of the backrest 10, and the pillow 11 is located on the back side of the backrest 10, it can ensure that the human body has good comfort when contacting the back side of the backrest 10, and avoid the feeling of foreign matter.

[0048] In addition, one end of the pillow 11 is hinged to the slide 12, and the other end of the pillow 11 is a floating end, that is, the floating end of the pillow 11 can rotate around the hinge point between the pillow 11 and the slide 12, so that there is a certain gap between the pillow 11 and the backrest 10, avoiding the possibility of interference between the pillow 11 and the backrest 10 when moving, thereby facilitating the pillow 11 to move more smoothly in the vertical direction.

[0049] like Figure 6 and Figure 7As shown, in this embodiment, the pillow 11 includes a mounting frame 111 and a pillow pad 112. The top of the mounting frame 111 is hinged to the slide 12, and a plurality of slots 1112 are provided on the inner edge of the mounting frame 111. A plurality of plug connectors 1121 that match the slots 1112 are provided on the inner edge of the pillow pad 112. Through the plug-in cooperation of the plug connectors 1121 and the slots 1112, the pillow pad 112 is sleeved in the mounting frame 111. The mounting frame 111 can protect the pillow pad 112, prevent the pillow pad 112 from being deformed after long-term use, thereby extending the service life of the pillow pad 112 and facilitating the replacement of the pillow pad 112.

[0050] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, a bending portion 1111 hinged to the slide 12 is disposed at the top end of the mounting frame 111 , and a groove 102 for avoiding the bending portion 1111 is disposed on the top surface of the backrest 10 .

[0051] Specifically, since the height position of the pillow 11 is adjusted by the slide 12 sliding along the slide seat 101 in the vertical direction, the groove 102 is provided on the top surface of the backrest 10 to avoid the downward movement of the pillow 11 driven by the slide 12, so that the pillow 11 can be moved down to a lower position when used as a back pillow to meet the height position requirements of users of different body shapes. In addition, when the slide 12 drives the pillow 11 to move down to the lowest position limited by the sliding stroke, the bending piece can be clamped on the groove 102, thereby enhancing the stability of the connection between the pillow 11 and the backrest 10.

[0052] like Figure 4 and Figure 6 As shown, in this embodiment, a plurality of reinforcing ribs 103 are arranged on the back side of the backrest 10. The reinforcing ribs 103 can be arranged on the back side of the backrest 10 horizontally or vertically, which can improve the structural strength of the backrest 10, thereby enhancing the supporting force of the backrest 10 and extending the service life of the backrest 10.

[0053] like Figure 7 and Figure 8 As shown, in this embodiment, a plurality of weight-reducing grooves 121 are provided on the slide 12. By providing the weight-reducing grooves 121, the weight of the slide 12 can be reduced, making it convenient for the user to adjust the slide 12 to slide along the slide seat 101, thereby facilitating the adjustment of the height position of the pillow 11.

[0054] like Figure 1 , Figure 3 and Figure 7As shown, in this embodiment, a spine supporting portion 104 and two symmetrically arranged shoulder blade supporting portions 105 are provided on the back side of the backrest 10, and the spine supporting portion 104 and the shoulder blade supporting portions 105 protrude from the surface of the backrest 10. The spine supporting portion 104 is vertically arranged in the middle area of ​​the backrest 10 to support the spine part of the human body, and the shoulder blade supporting portions 105 are symmetrically arranged in the upper area of ​​the backrest 10 to support the shoulder blade part of the human body.

[0055] Furthermore, in this embodiment, a plurality of massage ball heads 1051 are provided on the spine support part 104, the shoulder blade support part 105 and / or the pillow 11. Through the friction or pressing between the massage ball heads 1051 and the human body, a certain massage effect can be exerted on the human body, which can relieve the fatigue of sitting for a long time and improve the comfort of use.

[0056] like Figure 2 As shown, in this embodiment, a plurality of ventilation holes 113 are provided along the thickness direction on the backrest 10 and / or the pillow 11. The ventilation holes 113 make the backrest and / or the pillow 11 breathable, and when the back or head of the user is hot and sweaty, the ventilation holes 113 can play a role in heat dissipation and ventilation.

[0057] Embodiment 2

[0058] Please refer to Figure 1-Figure 8 As shown, the second aspect of this embodiment further provides a chair, including the chair back structure described in Embodiment 1. Through the design of the chair back structure, the chair has the effect of correcting sitting posture while also having good comfort, and can also be suitable for users of different body shapes, and has good practicality.

[0059] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A chair back structure, It is characterized in that include: A backrest, wherein the backrest is provided with a sliding seat vertically arranged along the height direction thereof; A pillow member, the pillow member is located on the backrest side of the backrest and protrudes from the surface of the backrest. The pillow member is slidably connected to the sliding seat so as to serve as a headrest when moving to the upper area of ​​the backrest and as a backrest when moving to the lower area of ​​the backrest.

2. The seat back structure according to claim 1, Features: It also includes a slide frame, which is located on the back side of the backrest and is frictionally slidable or frictionally locked with the slide seat. One end of the pillow is hinged to the slide frame, and the other end of the pillow is a floating end.

3. The seat back structure according to claim 2, Features: The pillow member comprises a mounting frame and a pillow pad. The top end of the mounting frame is hinged to the slide frame. The inner edge of the mounting frame is provided with a plurality of slots. The inner edge of the pillow pad is provided with a plurality of plug connectors matched with the slots.

4. The seat back structure according to claim 3, Features: The top end of the mounting frame is provided with a bending portion hinged to the sliding frame, and the top surface of the backrest is provided with a groove for avoiding the bending portion.

5. The chair back structure according to claim 1, Features: A plurality of reinforcing ribs are arranged on the back side of the backrest.

6. The seat back structure according to claim 2, Features: The slide frame is provided with a plurality of weight-reducing grooves.

7. The chair back structure according to claim 1, Features: A spine supporting portion and two symmetrically arranged shoulder blade supporting portions are arranged on the back side of the backrest, and the spine supporting portion and the shoulder blade supporting portion protrude from the surface of the backrest.

8. The seat back structure according to claim 7, Features: A plurality of massage ball heads are arranged on the spine supporting part, the shoulder blade supporting part and / or the pillow.

9. The seat back structure according to claim 1, Features: The backrest and / or the pillow are / is provided with a plurality of ventilation holes penetrating along the thickness direction.

10. A chair, It is characterized in that The invention comprises a chair back structure as claimed in any one of claims 1 to 9.

Images