Multifunctional chair for relieving cervical and lumbar vertebrae and method of use

Abstract

The present application belongs to the technical field of sitting furniture, and particularly relates to a multifunctional sitting furniture for relieving cervical and lumbar vertebrae and a use method. The multifunctional sitting furniture for relieving cervical and lumbar vertebrae comprises a chair leg, a seat cushion is arranged on the chair leg, a backrest support is hingedly arranged at the rear side of the seat cushion, a multifunctional pillow is arranged on the backrest support and is in lifting and lowering activity connection with the backrest support, the multifunctional pillow is in close contact with the back of the head and the back of the brain when the multifunctional pillow is lifted to the rear side of the head relative to the backrest support, the top of the multifunctional pillow supports and abuts against the chin when the multifunctional pillow is lowered below the chin relative to the backrest support, a backrest is arranged on the backrest support and is below the multifunctional pillow and in lifting and lowering activity connection with the backrest support, and multifunctional cantilevers are arranged on both sides of the backrest and extend to the waist on both sides of the human body. The present application has the advantages that the pressure on the cervical and lumbar vertebrae is relieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sitting furniture, and particularly relates to a multifunctional sitting furniture for relieving cervical and lumbar vertebrae and a use method. BACKGROUND

[0002] The existing swivel chair has relatively single use function and can only be used as a regular chair.

[0003] After sitting on the sitting furniture for a period of time, the existing chair cannot be used as a prone sitting furniture, and cannot relieve and protect the cervical and lumbar vertebrae, which is unreasonable in design.

[0004] For example, a bidirectional backrest chair is disclosed in Chinese Patent, Application No. CN201410349852.1, which comprises a chair back, a chair back connecting rod, a seat, a support shaft and a chair leg. One end of the chair back connecting rod is fixedly connected with the chair back, and the other end is arranged on the support shaft. The support shaft is rotatably connected with the seat at one end and fixedly arranged on the chair leg at the other end. The seat is arranged in a saddle type structure. In the present application, the backrest chair has forward and backward sitting postures. The saddle type structure of the seat can disperse the pressure on the waist and hips in a sitting state on the thighs, and the saddle type structure can effectively buffer and release the interaction force between the thighs and the seat, so that the sitting posture can be maintained for a long time. The air holes arranged on the surface of the seat help to dissipate heat in the hip area and keep it clean and dry. In addition, the chair back is also provided with a detachable workbench, which is convenient for work when sitting backward, and solves the technical problems of discomfort and inability to adjust the sitting posture of the existing backrest chair.

[0005] The above scheme has the advantages as above, but the use function is relatively single, and the above technical problems are solved. SUMMARY

[0006] The present application aims at the above problems, and provides a multifunctional sitting furniture for relieving cervical and lumbar vertebrae and a use method.

[0007] To achieve the above purpose, the present application adopts the following technical scheme:

[0008] The multifunctional sitting furniture for relieving cervical and lumbar vertebrae comprises a chair leg, a seat cushion arranged on the chair leg, a backrest support hingedly connected to the rear side of the seat cushion, a multifunctional pillow arranged on the backrest support and movably connected with the backrest support, the multifunctional pillow being in close contact with the back of the head when being raised to the rear side of the head relative to the backrest support, and the top of the multifunctional pillow supporting and abutting against the chin when being lowered below the chin relative to the backrest support, a backrest arranged on the backrest support below the multifunctional pillow and movably connected with the backrest support, and multifunctional cantilevers arranged on both sides of the backrest and extending to the lumbar vertebrae on both sides of the human body.

[0009] In the multifunctional seat for relieving cervical and lumbar vertebrae, the two sides of the bottom of the multifunctional pillow are respectively provided with cervical vertebrae abutting portions.

[0010] In the multifunctional seat for relieving cervical and lumbar vertebrae, the cervical vertebrae abutting portions and the bottom of the multifunctional pillow form arc-shaped grooves.

[0011] In the multifunctional seat for relieving cervical and lumbar vertebrae, the top of the backrest is provided with upper convex matching portions which are matched with the arc-shaped grooves when the multifunctional pillow and the backrest abut together.

[0012] In the multifunctional seat for relieving cervical and lumbar vertebrae, the two multifunctional cantilevers are distributed in a splayed shape.

[0013] In the multifunctional seat for relieving cervical and lumbar vertebrae, the side of the backrest close to the human body is provided with a first circular arc concave surface, the side of each multifunctional cantilever close to the human body is provided with a tangent surface tangent to the first circular arc concave surface, or the side of each multifunctional cantilever close to the human body is provided with a second circular arc concave surface smoothly connected with the first circular arc concave surface.

[0014] In the multifunctional seat for relieving cervical and lumbar vertebrae, the top of the multifunctional pillow is provided with an arc-shaped supporting concave surface.

[0015] In the multifunctional seat for relieving cervical and lumbar vertebrae, the side of the multifunctional pillow close to the human body is provided with an arc-shaped fitting concave surface.

[0016] In the multifunctional seat for relieving cervical and lumbar vertebrae, the upper surfaces of the two multifunctional cantilevers are arm supporting surfaces.

[0017] The application also provides a use method of the multifunctional seat for relieving cervical and lumbar vertebrae, which comprises the following steps:

[0018] S1, as a conventional seat, the multifunctional pillow is raised on the back side of the human head, and the backrest is raised on the back side of the human body, the multifunctional pillow fits the back side of the human head, and the backrest fits the back of the human body.

[0019] S2, as a prone seat, the multifunctional pillow is lowered below the chin of the human body, the backrest is lowered to the abdomen of the human body, the top of the multifunctional pillow supports the chin of the human body, the multifunctional cantilevers on both sides of the backrest embrace the abdomen of the human body, and the arms of the human body are placed on the upper surfaces of the multifunctional cantilevers.

[0020] Compared with the prior art, the application has the following advantages:

[0021] The stress relief of lumbar vertebra and cervical vertebra can be realized, so as to improve the practicability of the chair.

[0022] The sitting and crouching of the chair can be realized, the chair is multifunctional, the conversion between the sitting and crouching is simple and convenient, and the practicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of a three-dimensional structure of the multifunctional chair for relieving cervical vertebra and lumbar vertebra provided by the present application as a conventional chair.

[0024] Figure 2 is a schematic diagram of a three-dimensional structure of the multifunctional chair for relieving cervical vertebra and lumbar vertebra provided by the present application as a crouching chair.

[0025] Figure 3 is a schematic diagram of a three-dimensional structure of the multifunctional chair for relieving cervical vertebra and lumbar vertebra provided by the present application as a crouching chair and capable of supporting the chin.

[0026] Figure 4 is a schematic diagram of a three-dimensional structure of the multifunctional chair for relieving cervical vertebra and lumbar vertebra provided by the present application as a front view structure.

[0027] Figure 5 is a schematic diagram of a three-dimensional structure of the multifunctional chair for relieving cervical vertebra and lumbar vertebra provided by the present application as a rear view structure.

[0028] Figure 6 is a schematic diagram of a hinge structure of a backrest support and a seat cushion provided by the present application.

[0029] In the figure, the chair leg 1, the seat cushion 2, the conical insertion blind hole 20, the arc-shaped concave surface 21, the pivot hole 22, the backrest support 3, the lower convex part 30, the arc-shaped convex surface 31, the pivot 32, the elastic member 33, the multifunctional pillow 4, the cervical vertebra abutting part 40, the arc-shaped concave groove 41, the arc-shaped bearing concave surface 42, the arc-shaped snug concave surface 43, the backrest 5, the upper convex matching part 50, the first circular arc concave surface 51, the multifunctional cantilever 6, and the tangent surface 60. DETAILED DESCRIPTION

[0030] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0031] Embodiment one

[0032] As shown in the figure, the multifunctional chair for relieving cervical vertebra and lumbar vertebra comprises a chair leg 1. Figure 1 The chair leg 1 is any one of a roller chair leg or a chair leg without a roller.

[0033] A seat cushion 2 is arranged on the chair leg 1, the seat cushion 2 and the chair leg 1 are connected through a lifting cylinder assembly, the lifting cylinder assembly is commercially available, and the seat cushion 2 and the chair leg 1 are fixedly connected.

[0034] The cushion 2 comprises a metal cushion base and a cushion body arranged on the upper surface of the metal cushion base, wherein the cushion body is a mesh cloth or a foam cushion.

[0035] As shown in the drawings, a backrest support 3 is hingedly connected to the rear side of the cushion 2, and the lower end of the backrest support 33 is hingedly connected to the metal cushion base of the cushion 2, and the upper end of the backrest support 3 is free. Specifically, the backrest support 3 is made of a metal hollow or solid pipe, and of course, the backrest support 3 can also be made of plastic. Figures 1-5 A hinge shaft is fixedly connected to the lower end of the backrest support 3, a torsion spring is sleeved on the hinge shaft, the hinge shaft is rotatably connected to the cushion 2, and the two ends of the torsion spring abut against the cushion 2, and the structure realizes the swinging of the backrest support 3 in the front-rear direction of the seat.

[0036] Of course, there can be another scheme: as shown in the drawings, a lower protrusion 30 is arranged at the lower end of the backrest support 3, an arc-shaped convex surface 31 is arranged on the lower protrusion 30, a tapered insertion blind hole 20 is arranged on the rear side of the cushion 2 for inserting the lower protrusion 30, the hole bottom of the tapered insertion blind hole 20 is an arc-shaped concave surface 21 matched with the arc-shaped convex surface 31, a rotating shaft 32 is transversely arranged on the lower protrusion 30, rotating shaft holes 22 are arranged on the hole wall of the tapered insertion blind hole 20 for inserting the two ends of the rotating shaft, and the lower protrusion 30 swings around the axis of the rotating shaft relative to the tapered insertion blind hole 20 in the front-rear direction of the seat. An elastic member 33 is arranged between the rear side hole wall of the tapered insertion blind hole 20 and the rear vertical surface of the lower protrusion 30, the elastic member 33 is a compression spring and the number of the elastic member 33 is at least one, a first blind hole is arranged on the rear side hole wall of the tapered insertion blind hole 20, a second blind hole is arranged on the rear vertical surface of the lower protrusion 30, one end of the elastic member 33 is fixed to the first blind hole, the other end of the elastic member 33 is fixed to the second blind hole, and the elastic member 33 is inclinedly distributed from top to bottom, and the upper end of the elastic member 33 is close to one end of the lower protrusion 30.

[0037] Figure 6 The front side hole wall of the tapered insertion blind hole 20 is a vertical hole wall.

[0038] As shown in the drawings, a multifunctional pillow 4 is arranged on the backrest support 3 and is movably connected to the backrest support 3. For example, a lifting sleeve is sleeved on the backrest support 3, the multifunctional pillow 4 is fixed to the top of the lifting sleeve, and a bolt is transversely arranged on the lifting sleeve, the inner end of the bolt abuts against the outer peripheral surface of the backrest support 3, or the inner end of the bolt is threadedly connected with any one of a plurality of threaded holes on the outer peripheral surface of the backrest support 3.

[0039] As a conventional chair: when the multifunctional pillow 4 is lifted relative to the backrest support 3 to the rear side of the human head, the multifunctional pillow 4 is in close contact with the back of the human head. Figures 1-5

[0040]

[0041] ​​​When used as a reclining chair, the multi-functional pillow 4 lowers relative to the backrest support 3 to below the chin, with its top support resting against the chin. The top of the multi-functional pillow 4 has an arc-shaped support concave surface 42. A backrest 5 is located below the multi-functional pillow 4 and is vertically connected to the backrest support 3. This vertical connection can utilize the aforementioned "vertical connection structure between the backrest support 3 and the multi-functional pillow 4." Multi-functional cantilever arms 6 extend towards the waist on both sides of the backrest 5. Furthermore, the two multi-functional cantilever arms 6 are arranged in a V-shape to maximize support for the lumbar spine.

[0042] When used as a regular chair: the multi-functional cantilever 6 serves as an armrest, that is, the upper surface of the two multi-functional cantilever 6 is the arm support surface 61;

[0043] When used as a reclining chair: the multi-functional cantilever arm 6 serves as an armrest and rests against the sides of the waist, providing relief for the lumbar spine.

[0044] Secondly, such as Figures 1-5 As shown, cervical spine support tops 40 are provided on both sides of the bottom of the multifunctional pillow 4. The cervical spine support tops 40 can support the human cervical spine and relieve cervical spine pressure. In order to make the multifunctional pillow 4 more stable when it is used for support, the cervical spine support tops 40 and the bottom of the multifunctional pillow 4 form an arc-shaped groove 41. An upwardly protruding fitting part 50 is provided on the top of the backrest 5. When the multifunctional pillow 4 and the backrest 5 are pressed together, the upwardly protruding fitting part 50 and the arc-shaped groove 41 are engaged together.

[0045] In addition, a first arc-shaped concave surface 51 is provided on the side of the backrest 5 closest to the human body, and a tangent surface 60 that is tangent to the first arc-shaped concave surface 51 is provided on the side of each multi-functional cantilever 6 closest to the human body. The above design makes it more ergonomic.

[0046] The multifunctional pillow 4 has a curved, conforming concave surface 43 on the side closest to the human body. The curved, conforming concave surface 43 conforms to the back of the head.

[0047] Example 2

[0048] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference is that a second arc concave surface is provided on the side of each multifunctional cantilever that is close to the human body and is smoothly connected to the first arc concave surface.

[0049] Example 3

[0050] Based on Embodiment 1 or Embodiment 2, such as Figures 1-5 As shown in the figure, this embodiment provides a method for using a multifunctional seat to relieve cervical and lumbar spine pain, including the following steps:

[0051] S1, as a regular seat, the multifunctional pillow 4 rises at the back of the head of the human body, and the backrest 5 rises at the back of the back of the human body, the multifunctional pillow 4 fits the back of the head of the human body, and the backrest 5 fits the back of the human body;

[0052] S2, as a prone seat, the multifunctional pillow 4 is lowered below the chin of the human body, the backrest 5 is lowered to the abdomen of the human body, the top of the multifunctional pillow 4 supports the chin of the human body, the multifunctional cantilever 6 on both sides of the backrest 5 embraces both sides of the abdomen of the human body, and the arms of the human body are placed on the upper surface of the multifunctional cantilever 6.

[0053] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A multifunctional seat for relieving cervical and lumbar vertebrae, comprising a chair leg (1), a seat cushion (2) is arranged on the chair leg (1), a backrest support (3) is hingedly connected to the rear side of the seat cushion (2), characterized in that, The backrest support (3) is provided with a multifunctional pillow (4) which is connected with the backrest support (3) in a lifting manner, when the multifunctional pillow (4) is lifted to the back of the head of a human body, the multifunctional pillow (4) is in close contact with the back of the head of the human body, when the multifunctional pillow (4) is lowered to below the chin of the human body, the top of the multifunctional pillow (4) supports the chin of the human body, the backrest (5) is provided below the multifunctional pillow (4) and is connected with the backrest support (3) in a lifting manner, multifunctional cantilevers (6) are provided on both sides of the backrest (5) and extend to the waist of the human body. The multifunctional pillow (4) is provided with a cervical vertebra abutting part (40) on the bottom of each side. The cervical vertebra abutting part (40) and the bottom of the multifunctional pillow (4) form an arc-shaped groove (41). The backrest (5) is provided with an upper convex matching part (50) on the top, when the multifunctional pillow (4) and the backrest (5) abut together, the upper convex matching part (50) and the arc-shaped groove (41) match together. The two multifunctional cantilevers (6) are in a spread-eagle shape.

2. The multi-functional seating device for alleviating cervical and lumbar vertebrae according to claim 1, wherein The backrest (5) is provided with a first arc-shaped concave surface (51) on the side close to the human body, each multifunctional cantilever (6) is provided with a tangent surface (60) which is tangent to the first arc-shaped concave surface (51) on the side close to the human body, or each multifunctional cantilever (6) is provided with a second arc-shaped concave surface which is smoothly connected with the first arc-shaped concave surface (51) on the side close to the human body.

3. The multi-functional seating device for alleviating cervical and lumbar vertebrae according to claim 1, wherein The multifunctional pillow (4) is provided with an arc-shaped supporting concave surface (42) on the top.

4. The multi-functional seating device for alleviating cervical and lumbar vertebrae according to claim 1, wherein The multifunctional pillow (4) is provided with an arc-shaped close-contact concave surface (43) on the side close to the human body.

5. The multi-functional seating device for alleviating cervical and lumbar vertebrae according to claim 1, wherein The upper surfaces of the two multifunctional cantilevers (6) are arm supporting surfaces (61).

6. The method of using the multifunctional chair for relieving cervical and lumbar vertebrae according to any one of claims 1-5, wherein, The use method comprises the following steps: S1, as a conventional seat, the multifunctional pillow (4) is lifted to the back of the head of a human body, and the backrest (5) is lifted to the back of the human body, the multifunctional pillow (4) is in close contact with the back of the head of the human body, and the backrest (5) is in close contact with the back of the human body; S2, as a prone seat, the multifunctional pillow (4) is lowered to below the chin of the human body, the backrest (5) is lowered to the abdomen of the human body, the top of the multifunctional pillow (4) supports the chin of the human body, the multifunctional cantilevers (6) on both sides of the backrest (5) embrace the abdomen of the human body, and the arms of the human body are placed on the upper surfaces of the multifunctional cantilevers (6).

Images