Adjustable chair seat and chair

Abstract

The utility model discloses an adjustable chair seat and a chair. The adjustable chair seat comprises a seat plate frame, a mesh cloth piece, a shaping piece and an inflatable cushion, the seat plate frame is provided with a mounting cavity, the shaping piece is arranged in the mounting cavity, the inflatable cushion is connected to the upper portion of the shaping piece, and the mesh cloth piece is arranged on the upper portion of the inflatable cushion and connected to the seat plate frame; and the air pressure of the inflatable cushion is adjusted so as to adjust the supporting force borne by the screen cloth piece. By adjusting the air pressure of the inflatable cushion, the supporting force borne by the net cloth piece can be flexibly controlled, and by means of the design, a user can adjust the supporting force of the chair seat according to personal preference and needs, so that the optimal sitting feeling experience is obtained; in addition, the effective support of the inflatable cushion can prevent the screen cloth piece from being excessively stretched or collapsed due to long-time use or improper use, so that the service life of the chair seat is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of chairs, in particular to an adjustable seat and a chair. Background Art

[0002] Most of the existing chair seats use wooden boards and sponges as fillers, and are wrapped with a layer of leather or fabric. Such chair seats are not easy to collapse, but have poor air permeability and cannot adjust the softness and hardness of the sitting feeling. There are also some chairs that use plastic seat frames and combine tightened mesh fabrics as the seat surface to form a mesh frame seat board. Such seat surfaces have good air permeability, but also cannot adjust the softness and hardness of the sitting feeling. After a long time, the mesh fabric is prone to collapse, seriously affecting the sitting feeling and use of the chair. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an adjustable seat and a chair.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the utility model provides an adjustable seat, including: a seat board frame, a mesh fabric member, a shaping member and an air cushion. The seat board frame is provided with an installation cavity, the shaping member is arranged in the installation cavity, the air cushion is connected above the shaping member, the mesh fabric member is arranged above the air cushion and is connected to the seat board frame; adjusting the air pressure of the air cushion to adjust the supporting force received by the mesh fabric member.

[0006] In a specific embodiment, the air cushion is provided with a plurality of airbag modules arranged horizontally and vertically, and the corners of the air cushion are provided with air charging and discharging adjustment switches.

[0007] In a specific embodiment, the upper edge of the seat board frame is provided with an annular clamping groove, and the periphery of the mesh fabric member is connected to the annular clamping groove.

[0008] In a specific embodiment, the air cushion is connected to the shaping member through a magic tape to form a detachable connection.

[0009] In a specific embodiment, the front end and the rear end of the seat board frame are respectively provided with a front opening and a rear opening.

[0010] The beneficial effect of the adjustable seat of the utility model compared with the prior art is that: by adjusting the air pressure of the air cushion, the supporting force received by the mesh fabric member can be flexibly controlled. This design enables users to adjust the supporting strength of the seat according to personal preferences and needs, so as to obtain the best sitting experience; in addition, the effective support of the air cushion can prevent the mesh fabric member from being overstretched or collapsed due to long-term use or improper use, thereby extending the service life of the seat.

[0011] In a second aspect, an embodiment of the present utility model provides a chair, which includes the adjustable seat, the chassis assembly and the backrest assembly as described above. The seat plate frame and the backrest assembly are both connected to the chassis assembly. Armrest members are further provided on both sides of the seat plate frame, and the armrest members are connected to the seat plate frame or the chassis assembly.

[0012] In a specific embodiment, the backrest assembly includes a backrest member, a back leaf connecting member and a backrest skeleton. The back of the backrest member is connected to the back leaf connecting member, one end of the backrest skeleton is connected to the back leaf connecting member, and the other end is connected to the chassis assembly.

[0013] In a specific embodiment, the backrest member is composed of left and right symmetric back leaf support members.

[0014] In a specific embodiment, the back leaf support member is provided with a plurality of ventilation holes, and massage fittings are installed in some of the ventilation holes.

[0015] In a specific embodiment, the chassis assembly includes a bottom plate member and chair leg members. The backrest skeleton, the seat plate frame and the chair leg members are all connected to the bottom plate member.

[0016] The beneficial effects of the chair of the present utility model compared with the prior art are as follows: By adjusting the air pressure of the inflatable pad for the seat, the supporting force received by the mesh member can be flexibly controlled. This design enables the user to adjust the supporting strength of the seat according to personal preferences and needs, so as to obtain the best sitting experience; in addition, the effective support of the inflatable pad can prevent the mesh member from being overstretched or collapsed due to long-term use or improper use, thereby extending the service life of the chair.

[0017] The present utility model will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the accompanying drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is an exploded schematic view of the adjustable seat provided by the present utility model;

[0020] Figure 2 is a cross-sectional schematic view of the adjustable seat provided by the present utility model;

[0021] Figure 3Schematic diagram of the connection structure between the seat board frame and the shaping member provided by the present utility model;

[0022] Figure 4 Stereo diagram of the chair provided by the present utility model;

[0023] Figure 5 Exploded view of the chair provided by the present utility model;

[0024] Figure 6 Partial structure diagram of the backrest member provided by the present utility model;

[0025] Figure 7 Cross-sectional view of the massage accessory provided by the present utility model. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0030] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0032] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0033] See Figures 1 to 3 In the specific embodiment shown, the present utility model discloses an adjustable seat, including: a seat plate frame 10, a mesh member 20, a shaping member 30, and an air cushion 40. The seat plate frame 10 is provided with an installation cavity, the shaping member 30 is disposed in the installation cavity, the air cushion 40 is connected above the shaping member 30, the mesh member 20 is disposed above the air cushion 40 and is connected to the seat plate frame 10; the air pressure of the air cushion 40 is adjusted to adjust the supporting force received by the mesh member 20.

[0034] Specifically, when a person sits on the seat, the buttocks will stretch the mesh member 20 downward to cause it to sink. The inflatable cushion 40 provided within the seat plate frame 10 can effectively support the mesh member 20, preventing the mesh from being overstretched or collapsing. That is to say, through the effective support of the inflatable cushion 40, it is possible to prevent the mesh member 20 from being overstretched or collapsing due to long-term use or improper use, thereby extending the service life of the seat. In addition, by adjusting the air pressure of the inflatable cushion 40, the support force received by the mesh member 20 can be flexibly controlled. This design enables the user to adjust the support strength of the seat according to personal preferences and needs, thereby obtaining the best sitting experience. In addition, filling more gas can increase the support height of the inflatable cushion 40. Conversely, deflating can achieve the effect of reducing the height. This height adjustment function enables the seat to adapt to the needs of different heights and usage scenarios. In addition, in addition to the height, the air pressure of the inflatable cushion 40 also determines the softness and hardness of the seat. The user can adjust the softness and hardness of the seat by inflating and deflating according to personal preferences and comfort requirements, realizing a personalized sitting experience. In addition, due to the ability to dynamically adjust the support force, height, and softness and hardness, this adjustable seat can provide a more personalized sitting experience for the user. Whether for long-term office work or relaxation, the user can find the most suitable sitting posture and comfort level.

[0035] In one embodiment, the inflatable cushion 40 is provided with a number of airbag modules 41 arranged horizontally and vertically, and the corners of the inflatable cushion 40 are provided with inflation and deflation adjustment switches.

[0036] Specifically, the inflatable cushion 40 is formed by pressing a soft material with a certain elasticity. It has a number of airbag modules 41 arranged horizontally and vertically and communicating with each other. This design is to facilitate the better laying of the inflatable cushion 40 in the installation cavity. The corners of the inflatable cushion 40 are provided with inflation and deflation adjustment switches. Market-existing corresponding manual or automatic inflation devices can be used for inflation, and exhaust can be achieved by pressing the corresponding one-way valve switch. This is prior art and will not be elaborated here. In addition, the horizontally and vertically arranged airbag modules 41 on the inflatable cushion 40 allow for more refined adjustment of the support force of the seat. Each airbag module 41 can work independently or in cooperation to provide a more uniform or targeted support force.

[0037] In one embodiment, the upper edge of the seat plate frame 10 is provided with an annular slot 11, and the four sides of the mesh member 20 are connected to the annular slot 11.

[0038] Specifically, the mesh component 20 is woven from a polymer material with slight elasticity and has breathability; the seat plate frame 10 is made of a plastic material, such as PP, nylon or a fiber-reinforced composite material, and is molded into a thin-walled square fitting with an open top cavity, and the four sides are in an arc shape. The mesh component 20 is tensioned on the seat plate frame 10 as the supporting surface of the seat. The shape of the mesh component 20 is similar to the seat surface projection of the seat plate frame 10, and the part slightly larger than the seat plate frame 10 (i.e., the four sides of the mesh component 20) can be inserted into the annular card slot 11 provided at the upper edge of the seat plate frame 10 to form a fixed structure, avoiding loosening or falling off caused by long-term use or frequent movement. In addition, the mesh component 20 is connected to the annular card slot 11, ensuring the stability and flatness of the seat during use, thereby improving the sitting comfort of the user.

[0039] In an embodiment, the inflatable pad 40 is connected to the shaping member 30 by Velcro to form a detachable connection.

[0040] Specifically, in order to facilitate the placement of the connection of the inflatable pad 40, the shaping member 30 is filled and laid on the bottom layer of the installation cavity. The shaping member 30 is a shaped sponge cushion layer, which can be used to cover various parts of the bottom of the installation cavity to keep the inner cavity bottom surface of the seat plate frame 10 flat, and then the shaped sponge cushion layer is permanently fixed by gluing it to the bottom of the installation cavity. The surface of the shaped sponge cushion layer is provided with single-sided Velcro, which is fixed by gluing or integrally formed. The Velcro can be a hook surface or a loop surface, and is respectively fixed at four positioning points in two groups on the inner sides of the front opening 12 and the rear opening 13 of the seat plate frame 10. The inflatable pad 40 is laid above the shaped sponge cushion layer, and the other side of the Velcro is sewn at the corresponding Velcro provided on the shaped sponge cushion layer. The inflatable pad 40 and the shaped sponge cushion layer can be fixed and adhered through the Velcro.

[0041] In an embodiment, the front end and the rear end of the seat plate frame 10 are respectively provided with a front opening 12 and a rear opening 13.

[0042] Specifically, the front opening 12 can be used to put the inflatable pad 40 into the inner cavity of the seat plate frame 10 covered with the mesh component 20, and the rear opening 13 is used to operate the installation and fixation of the other end of the inflatable pad 40, so that the inflatable pad 40 and the shaped sponge cushion layer are fixed and adhered through the Velcro. In addition, when the inflatable pad 40 needs to be removed for cleaning or replacement, the operation can be carried out through the front opening 12 and the rear opening 13. In other embodiments, the seat plate frame 10 may not be provided with the front opening 12 and the rear opening 13, but during the production process, the inflatable pad 40 and the shaped sponge cushion layer are first fixed and adhered through the Velcro, and then the mesh component 20 is connected to the seat plate frame 10, that is, the inflatable pad 40 cannot be removed for cleaning or replacement.

[0043] See Figures 4 to 7As shown, the present utility model also discloses a chair, which includes the adjustable seat, the chassis assembly 50 and the backrest assembly 60 as described above. The seat plate frame 10 and the backrest assembly 60 are both connected to the chassis assembly 50. Armrest members 70 are further provided on both sides of the seat plate frame 10, and the armrest members 70 are connected to the seat plate frame 10 or the chassis assembly 50.

[0044] Specifically, the armrest members 70 are existing accessories in the market and are installed on the left and right sides of the seat plate frame 10. By adjusting the air pressure of the inflatable cushion 40 in the seat, the supporting force received by the mesh member 20 can be flexibly controlled. This design enables the user to adjust the supporting strength of the seat according to personal preferences and needs, so as to obtain the best sitting experience. In addition, the effective support of the inflatable cushion 40 can prevent the mesh member 20 from being overstretched or collapsed due to long-term use or improper use, thereby extending the service life of the chair.

[0045] In an embodiment, the backrest assembly 60 includes a backrest member 61, a back leaf connecting member 62 and a backrest skeleton 63. The back surface of the backrest member 61 is connected to the back leaf connecting member 62, one end of the backrest skeleton 63 is connected to the back leaf connecting member 62, and the other end is connected to the chassis assembly 50.

[0046] Specifically, the back leaf connecting member 62 is mainly composed of a spring and a hardware part, and is externally provided with a plastic decorative cover for connecting and fixing the backrest member 61 to the backrest skeleton 63. The back leaf connecting member 62 is an existing accessory in the market. The backrest skeleton 63, as the skeleton accessory of the backrest support part, is formed by bending and welding metal pipes. It is mainly composed of an upper curved arc pipe and a lower "L"-shaped bent pipe. Among them, the arc pipe is used to connect two back leaf connecting members 62, one end of the "L"-shaped bent pipe is connected to the arc pipe, and the other end is connected to the chassis assembly 50. In addition, a backrest decorative pipe is sleeved on the outer periphery of the "L"-shaped bent pipe to achieve a decorative effect.

[0047] In an embodiment, the backrest member 61 is composed of left and right symmetric back leaf support members.

[0048] Specifically, the back leaf support is an improved design based on a type of backrest plate with a curved surface design that is currently available on the market. It is made of plastic, such as PP, ABS, etc., and has sufficient hardness and strength to support the human back. This rigid support can effectively disperse the pressure on the back and reduce the discomfort caused by single-point pressure. In addition, the design of the back leaf support takes into account the principles of ergonomics and adopts an arc-shaped profile to fit the natural curve of the human back. This design can ensure that the lumbar spine maintains its natural physiological curvature in a sitting position, avoiding lumbar spine deformation or pressure concentration caused by long-term sitting. In addition, through the left-right symmetric design of the back leaf support, the pressure on the back can be evenly distributed on both sides, reducing the pressure concentration on a single part, thereby improving the comfort of sitting. In addition, although the design of the back leaf support is fixed, its arc-shaped profile and rigid support characteristics can, to a certain extent, adapt to users of different body types. Whether tall, short, fat or thin, users can find a relatively comfortable back support point in a sitting position.

[0049] See Figures 6 to 7 As shown, in one embodiment, the back leaf support is provided with a plurality of ventilation holes, and massage fittings 80 are installed in some of the ventilation holes.

[0050] Specifically, the design of the ventilation holes allows air to circulate freely, effectively reducing the stuffy feeling on the back caused by long-term contact with the chair back. This is particularly important for users in hot weather or those who sit for long periods of work, and can significantly improve the comfort of use. In addition, the ventilation holes can reduce the accumulation of sweat on the back skin and reduce the risk of skin irritation and other skin problems caused by a humid environment. In addition, massage fittings 80 are installed in some of the ventilation holes. These fittings can provide a massage effect when the user is sitting, which can relieve the tension and fatigue of the back muscles and promote blood circulation. In addition, the massage fittings 80 are made of a type of elastic plastic or silicone material. This fitting has a support end and a mounting end, and the head of the mounting end is conical. The shape of the support end can be star-shaped, circular, triangular, or other existing market fittings with a certain shape. The user can directly insert the massage fitting 80 into the ventilation hole for installation, or install it according to the different acupoints corresponding to the human lumbar and back. When in use, leaning on the back leaf support, the convex arc surface of the support end can perform acupoint massage on the lumbar and back, making it have a certain effect of relieving fatigue. In addition, the ventilation holes can not only be star-shaped, but also other shapes such as circular, oval, pentagram, triangular, or a shape similar to a peanut shape.

[0051] See Figures 4 to 5 As shown, in one embodiment, the chassis assembly 50 includes a bottom plate member 51 and chair leg members 52, and the backrest frame 63, the seat plate frame 10, and the chair leg members 52 are all connected to the bottom plate member 51.

[0052] Specifically, the bottom plate member 51 is made of a metal material and is used to support and connect the backrest frame 63, the seat plate frame 10, and the chair leg member 52. The chair leg member 52 is composed of a pneumatic rod, a decorative cover, chair legs, and casters. The pneumatic rod is a standard market accessory that can be used to support and adjust the height of the seat and is installed between the bottom plate member 51 and the chair legs. The decorative cover is a two-layer rotary circular plastic sleeve installed on the outer periphery of the pneumatic rod for decoration and will move up and down with the pneumatic rod. The chair legs are the support bases of the chair, with five protruding fulcrum structures evenly distributed in the circumferential direction, and are molded from plastic or aluminum alloy materials, which are common market accessories. The casters are industrial movable casters installed at the lower part of the chair legs. Among them, the middle part of the bottom plate member 51 has a round hole, and the top of the pneumatic rod can be inserted into it. A handle for controlling the pneumatic rod is provided on the right side of the bottom plate member 51. By moving it up and down, the contact point at the top of the gas spring can be pressed to raise or lower the seat.

[0053] The above embodiments are the preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious substitution without departing from the concept of the technical solution of the present invention is within the protection scope of the present invention.

Claims

1. An adjustable seat, characterized in that, Comprising: A seat plate frame, a mesh component, a shaping component and an inflatable cushion. The seat plate frame is provided with an installation cavity. The shaping component is arranged in the installation cavity. The inflatable cushion is connected above the shaping component. The mesh component is arranged above the inflatable cushion and is connected to the seat plate frame. Adjust the air pressure of the inflatable cushion to adjust the supporting force received by the mesh component.

2. The adjustable seat according to claim 1, wherein The inflatable cushion is provided with a plurality of airbag modules arranged horizontally and vertically, and an air inflation and deflation adjustment switch is arranged at the corners of the inflatable cushion.

3. The adjustable seat according to claim 1, characterized in that, An annular card slot is arranged at the upper edge of the seat plate frame, and the periphery of the mesh component is connected to the annular card slot.

4. The adjustable seat according to claim 1, wherein The inflatable cushion is connected to the shaping component through a magic tape to form a detachable connection.

5. The adjustable seat according to claim 1, characterized in that, A front opening and a rear opening are respectively arranged at the front end and the rear end of the seat plate frame.

6. A chair, characterized in that, Comprising an adjustable seat as described in any one of claims 1-5, a chassis assembly and a backrest assembly. The seat plate frame and the backrest assembly are both connected to the chassis assembly. Armrest components are further arranged on both sides of the seat plate frame, and the armrest components are connected to the seat plate frame or the chassis assembly.

7. The chair according to claim 6, characterized in that, The backrest assembly includes a backrest component, a back leaf connecting component and a backrest skeleton. The back of the backrest component is connected to the back leaf connecting component. One end of the backrest skeleton is connected to the back leaf connecting component, and the other end is connected to the chassis assembly.

8. The chair according to claim 7, characterized in that, The backrest component is composed of left and right symmetric back leaf supporting components.

9. The chair according to claim 8, wherein The back leaf supporting component is provided with a plurality of ventilation holes, and massage accessories are installed in some of the ventilation holes.

10. The chair according to claim 7, characterized in that, The chassis assembly includes a bottom plate component and chair leg components, and the backrest skeleton, the seat plate frame and the chair leg components are all connected to the bottom plate component.

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