Novel waist rest assembly

Abstract

The utility model provides a novel waist rest assembly. The novel waist rest assembly comprises a waist rest supporting frame with the hollow middle. The mesh cloth and the adjusting air bag assembly are arranged at the hollowed-out position of the waist rest supporting frame, the adjusting air bag assembly which expands or contracts through inflation and deflation is arranged in the waist rest supporting frame, the mesh cloth under the action of the adjusting air bag assembly can be sunken inwards or ejected forwards according to the requirements of a user, the structure is simple, operation is convenient, and practicability is high. Therefore, the waist rest assembly has the functions of comfortable sitting and sitting posture correction.

Description

Technical Field

[0001] The utility model relates to the field of seats, and particularly relates to a novel lumbar support assembly. Background Art

[0002] In order to fit the lumbar and dorsal curves of the human body, a lumbar support that protrudes forward is provided at the lower position of the backrest of existing office chairs or ergonomic chairs to support the waist. Among them, the lumbar supports of some seats are set as mesh structures, that is, the lumbar support is set as a frame structure, and a stretched elastic mesh is arranged on the support frame. The elastic mesh enables the lumbar support to form an elastic support effect on the waist and also makes the lumbar support breathable, ensuring a comfortable sitting feeling.

[0003] When the sitter reclines backward, the waist will lean backward, causing the elastic mesh to sink into the support frame, which can provide a comfortable sitting feeling when the sitter is resting; when the sitter is working at a desk, due to sitting habits, the sitter's back will lean forward, but the mesh is still in the sunken state, making it difficult for the sitter to keep the upper body upright. Over time, it will cause the phenomenon of "hunchback".

[0004] In existing seats, mechanical devices are usually relied on to adjust the front and back support positions of the lumbar support. For example, in the chair patent with the publication number CN218279107, a front and back adjuster is arranged between the backrest and the lumbar support. The front and back adjuster includes a screw rod and a threaded tube connected by threads. The threaded tube is connected to the height adjuster, and the screw rod is installed on the backrest; when adjusting the position of the lumbar support, the screw rod needs to be rotated to drive the threaded tube to move linearly, so that the lumbar support moves to the corresponding support position to support the waist, but such a design has deficiencies.

[0005] Rotating the screw rod can adjust the support position of the lumbar support, but this method will cause the entire lumbar support to move forward instead of resetting the mesh to the initial position. The generated adjustment force is too large, forcing the sitter to change the original sitting position and posture.

[0006] When the sitter switches from the state of working at a desk to the reclining rest state, the screw rod also needs to be rotated several times to make the lumbar support return to the initial position, which is cumbersome to operate and affects the use experience of the seat. Summary of the Invention

[0007] In order to solve the above technical problems, the purpose of the utility model is to provide a novel lumbar support assembly. By arranging an adjustable airbag assembly that expands or contracts by inflating and deflating in the lumbar support frame, the mesh affected by the adjustable airbag assembly can be sunken inward or pushed forward according to the needs of the user. The structure is simple and the operation is convenient, making the lumbar support assembly have both the functions of comfortable sitting and posture correction.

[0008] The technical solution of the utility model is realized as follows:

[0009] A new type of lumbar support assembly, comprising:

[0010] A lumbar support frame, which is a frame structure with a hollow middle;

[0011] A mesh fabric, which is arranged at the hollow position of the lumbar support frame and remains taut in the initial state;

[0012] An adjustment airbag assembly, which is arranged inside the lumbar support frame; the adjustment airbag assembly can expand itself by inflating or contract itself by deflating;

[0013] The lumbar support assembly has a support mode and a correction mode. When the lumbar support assembly is in the support mode, the adjustment airbag assembly is in a deflated state or not fully inflated. At this time, the mesh fabric will sink into the lumbar support frame under the backward sitting force. When the lumbar support assembly switches from the support mode to the correction mode, the adjustment airbag assembly inflates and acts on the mesh fabric, making the sunken part of the mesh fabric gradually return to the initial position or protrude forward beyond the initial position. When the inflated adjustment airbag assembly contracts to separate from the mesh fabric by deflating, the lumbar support assembly switches back to the support mode.

[0014] Preferably, the adjustment airbag assembly includes two sub-airbags, which are symmetrically arranged on both sides inside the lumbar support frame left and right and are simultaneously connected to an inflation and deflation device; the two sub-airbags correspond to both sides of the waist, so that both sides of the waist can be corrected forward to the correct sitting posture at the same time.

[0015] Preferably, the adjustment airbag assembly includes three sub-airbags, which are respectively arranged at the left and right sides and the middle position inside the lumbar support frame and are simultaneously connected to an inflation and deflation device; the three sub-airbags can form three acting points on the waist, enabling the waist to stand upright more stably forward.

[0016] Preferably, the adjustment airbag assembly includes a multi-row airbag assembly. The airbag assembly includes a plurality of spaced sub-airbags, and the plurality of sub-airbags are simultaneously connected to an inflation and deflation device; the plurality of spaced sub-airbags can form an all-round pressing effect on the waist, achieving a dot matrix type correction effect.

[0017] Preferably, the inflation and deflation device is an inflation and deflation balloon, and the inflation and deflation balloon is connected to each sub-airbag through a control pipeline.

[0018] Preferably, the control pipeline includes a main pipeline connected to the inflation and deflation balloon, and the main pipeline is connected to the corresponding sub-airbag through a branch pipeline; so that all the sub-airbags are interconnected with each other, and the air pressure values in each sub-airbag can be changed simultaneously.

[0019] Preferably, a control component is provided outside the lumbar support frame. The control component is in communication with the inside of the lumbar support frame and includes an inflation button for pressing the inflation and deflation balloon and a deflation button for reducing the internal pressure of the sub-airbag, which facilitates the user to control the pressure in the sub-airbag according to their own needs.

[0020] Preferably, the sub-airbags located on the left and right sides of the lumbar support frame divide a front top area on the mesh fabric. The front top area corresponds to the position of the corresponding sub-airbag, and an elastic deformation area is formed between the two front top areas. The front top area can act on the mesh fabric forward to press the lumbar region, and the elastic deformation area is in a suspended state with the lumbar support frame and can elastically deform after receiving the sitting force, making the lumbar support component more comfortable.

[0021] Preferably, when the lumbar support component is in the support mode, the support hardness of the mesh fabric is in a lower state; when the lumbar support component switches from the support mode to the correction mode, the adjustment airbag component expands and acts on the mesh fabric, and at this time, the support hardness of the mesh fabric switches from a lower state to a higher state. The support hardness of the mesh fabric can form a comfortable elastic support for the lumbar region in the lower state, and in the higher support hardness state, it can continuously press the lumbar region to prevent the sitting posture of the sitter from deforming.

[0022] The beneficial effects of the present utility model adopting the above technical solutions are as follows:

[0023] When the sitter is resting, the mesh fabric can form an elastic support for the lumbar region. When the sitter is working at a desk, instead of moving the entire lumbar support component forward, the adjustment airbag component provided inside the lumbar support frame is inflated and expands to act on the mesh fabric, so that the support feeling of the mesh fabric is enhanced, and the sunken part of the mesh fabric will gradually return to its original position, preventing the "hunchback" phenomenon caused by the lumbar region sinking into the lumbar support frame downward. The entire adjustment process is simple, the adjustment effect is good, which meets the use needs of the sitter and improves the use experience of the seat. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the mesh fabric tightened on the lumbar support frame;

[0025] Figure 2 It is a schematic structural diagram inside the lumbar support frame after the mesh fabric is hidden;

[0026] Figure 3 It is a cross-sectional view of the adjustment airbag contracting and separating from the mesh fabric;

[0027] Figure 4 It is a cross-sectional view of the adjustment airbag expanding and acting on the mesh fabric;

[0028] Figure 5 It is a schematic structural diagram of the control component;

[0029] Figure 6It is a schematic structural diagram of the novel lumbar support assembly in Embodiment 2;

[0030] Figure 7 It is a schematic structural diagram of the novel lumbar support assembly in Embodiment 3;

[0031] Each reference numeral is: 1 - lumbar support frame, 2 - mesh fabric, 3 - sub - airbag, 4 - inflation and deflation ball, 5 - control pipeline, 6 - inflation button, 7 - deflation button, 21 - front top area, 22 - elastic deformation area, 41 - gland, 51 - main pipe, 52 - branch pipe. Detailed implementation manners

[0032] In order to more clearly understand the above - mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0033] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0034] The present utility model has multiple embodiments, and the specific implementation manners are as follows:

[0035] Embodiment 1: As Figures 1-5 shown, this embodiment provides a novel lumbar support assembly, including:

[0036] A lumbar support frame 1, the lumbar support frame 1 is a frame structure with a hollow middle; it is usually arranged on the backrest;

[0037] A mesh fabric 2, the mesh fabric 2 has elasticity, it is arranged at the hollow position of the lumbar support frame 1, and the mesh fabric 2 remains taut in the initial state;

[0038] An adjustment airbag assembly, arranged inside the lumbar support frame 1; the adjustment airbag assembly can expand itself by inflating, and can also contract itself by deflating;

[0039] The lumbar support assembly has a supporting mode and a correction mode. When the lumbar support assembly is in the supporting mode, the adjusting airbag assembly is in a deflated state or not fully inflated. At this time, when the mesh fabric 2 receives the backward sitting force, it will sink into the lumbar support frame 1, thereby forming a comfortable elastic support for the waist. When the lumbar support assembly switches from the supporting mode to the correction mode, the adjusting airbag assembly inflates and acts on the mesh fabric 2, causing the sunken part of the mesh fabric 2 to gradually return to the initial position or protrude forward beyond the initial position, thereby pressing the waist to the normal upright state and keeping the correct sitting posture. When the inflated adjusting airbag assembly shrinks by deflating and separates from the mesh fabric 2, the lumbar support assembly switches back to the supporting mode.

[0040] Furthermore, to form a stable pressing effect on the waist, the adjusting airbag assembly includes two sub-airbags 3. The two sub-airbags 3 are symmetrically arranged on both sides inside the lumbar support frame 1 and are simultaneously connected to an air charging and discharging device. The two sub-airbags 3 correspond to the two sides of the waist, enabling the two sides of the waist to be corrected forward to the correct sitting posture simultaneously.

[0041] Furthermore, the air charging and discharging device is an air charging and discharging balloon 4 arranged inside the lumbar support frame 1. The air charging and discharging balloon 4 is pressed tightly by a gland 41 to prevent it from moving. The air charging and discharging balloon 4 is connected to each sub-airbag 3 through a control pipeline 5. The control pipeline 5 includes a main pipeline 51 connected to the air charging and discharging balloon 4, and the main pipeline 51 is connected to the corresponding sub-airbag 3 through a branch pipeline 52. All the sub-airbags 3 are interconnected, and the air pressure values inside each sub-airbag 3 can be changed simultaneously. When the inflated sub-airbags 3 receive a backward acting force, the air between the sub-airbags 3 will flow adaptively, keeping the front pressing forces on both sides of the lumbar support assembly the same.

[0042] Furthermore, to facilitate the air pressure of each sub-airbag 3, a control component is provided outside the lumbar support frame 1. The control component is connected to the inside of the lumbar support frame 1 and includes an inflation button 6 for pressing the air charging and discharging balloon 4 and a deflation button 7 for reducing the internal pressure of the sub-airbag 3. The structure of the air charging and discharging balloon 4 is similar to that of the balloon in an ordinary sphygmomanometer. A connecting pipe (not shown) is provided at its tail end, and a one-way valve (not shown) that only allows air to enter is provided on the connecting pipe. Among them, the inflation button 6 is arranged at the position of the air charging and discharging balloon 6 to press the air charging and discharging balloon 4 multiple times and press the gas into the control pipeline 5 through the one-way valve. The deflation button 7 is connected to the one-way valve and can control the opening and closing of the one-way valve by pressing. Therefore, when the deflation button 7 is pressed, all the sub-airbags 3 will deflate, thus facilitating the user to control the pressure inside the sub-airbag 3 according to their own needs.

[0043] Furthermore, in the present embodiment, the sub-airbags 3 located on the left and right sides of the lumbar support frame 1 divide the front top area 21 on the mesh cloth 2, and the front top area 21 corresponds to the position of the corresponding sub-airbags 3, and an elastic deformation area 22 is formed between the two front top areas 21; the front top area 21 can act on the mesh cloth 2 forward and make the mesh cloth 3 press against the waist, and the elastic deformation area 22 is in a hollow state with respect to the lumbar support frame 1, and can be elastically deformed after being subjected to the sitting force, so that the lumbar support assembly is more comfortable.

[0044] Furthermore, adjusting the expansion or contraction of the airbag assembly will affect the support hardness of the mesh 2. When the lumbar support assembly is in the supporting mode, the support hardness of the mesh 2 is in a relatively low state, so it can deform when subjected to force; when the lumbar support assembly is switched from the supporting mode to the correcting mode, the airbag assembly is adjusted to expand and act on the mesh 2, and the support hardness of the mesh 2 is switched from a relatively low state to a relatively high state; the support hardness of the mesh 2 can form a comfortable elastic support for the waist in a relatively low state, and in a relatively high support hardness state, the mesh 2 can continue to press against the waist to prevent the occupant's sitting posture from being deformed.

[0045] Example 2: Figure 6 As shown, the difference between this embodiment and the above embodiment lies in that the new lumbar support assembly in this embodiment is different from the seat structure in the above embodiment, wherein the adjustable airbag assembly includes three sub-airbags 3, which are respectively arranged on the left and right sides and the middle position inside the lumbar support frame 1, and are simultaneously connected to an inflation and deflation device; the three sub-airbags 3 can form three action points on the waist, so that the waist can stand forward more stably.

[0046] Example 3: Figure 7 As shown, the difference between this embodiment and the above-mentioned embodiment lies in that the adjusting airbag assembly in this embodiment includes a multi-row airbag assembly, and the airbag assembly includes a plurality of spaced sub-airbags 3, and the plurality of sub-airbags 3 are simultaneously connected to an inflation and deflation device; the plurality of spaced sub-airbags 3 can form an array of action points on the mesh 2, forming an all-round pressing effect on the waist, thereby achieving a dot matrix correction effect.

[0047] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A new type of lumbar support assembly, characterized in that: include: A lumbar support frame (1), the lumbar support frame (1) being a frame structure with a hollow center; The mesh cloth (2) is arranged at a hollow position of the lumbar support frame (1), and the mesh cloth (2) is kept taut in an initial state; An adjustable airbag assembly is arranged in the lumbar support frame (1); the adjustable airbag assembly can expand itself by inflating, and can also shrink itself by deflating; The lumbar support assembly has a supporting mode and a correcting mode. When the lumbar support assembly is in the supporting mode, the adjusting airbag assembly is in a deflated state or an unfilled state. At this time, the mesh cloth (2) is subjected to a backward sitting force and is recessed into the lumbar support frame (1). When the lumbar support assembly is switched from the supporting mode to the correcting mode, the adjusting airbag assembly is inflated and acts on the mesh cloth (2), so that the recessed portion of the mesh cloth (2) is gradually restored to an initial position or extends forward beyond the initial position. When the inflated adjusting airbag assembly is deflated and contracted to be separated from the mesh cloth (2), the lumbar support assembly is switched back to the supporting mode.

2. A new waist support assembly according to claim 1, characterized in that: The adjustable airbag assembly comprises two sub-airbags (3), which are symmetrically arranged on both sides of the inside of the lumbar support frame (1) and are simultaneously connected to an inflation and deflation device.

3. A new waist support assembly according to claim 1, characterized in that: The adjustable airbag assembly comprises three inflatable sub-airbags (3), the three sub-airbags (3) being respectively arranged at the left and right sides and the middle of the lumbar support frame (1), and being connected to an inflation and deflation device at the same time.

4. A new waist support assembly according to claim 1, characterized in that: The regulating airbag assembly comprises a plurality of rows of airbag assemblies, the airbag assembly comprising a plurality of spaced sub-airbags (3), and the plurality of sub-airbags (3) are simultaneously connected to an inflation and deflation device.

5. A new waist support assembly according to any one of claims 2 to 4, characterized in that: The inflation and deflation device is an inflation and deflation balloon (4), and the inflation and deflation balloon (4) is connected to each sub-airbag (3) via a control pipeline (5).

6. A new waist support assembly according to claim 5, characterized in that: The control pipeline (5) comprises a main pipe (51) connected to the inflation and deflation balloon (4), and the main pipe (51) is connected to the corresponding sub-balloon (3) via a branch pipe (52).

7. A new type of lumbar support assembly according to claim 5, characterized in that: A control component is provided outside the lumbar support frame (1), the control component is communicated with the inside of the lumbar support frame (1), and comprises an inflation button (6) for pressing the inflation and deflation ball (4), and a deflation button (7) for reducing the internal pressure of the sub-airbag (3).

8. A new waist support assembly according to claim 2, characterized in that: The sub-airbags (3) located on the left and right sides of the lumbar support frame (1) divide a front top area (21) on the mesh (2), the front top area (21) corresponds to the position of the corresponding sub-airbag (3), and an elastic deformation area (22) is formed between the two front top areas (21).

9. A new waist support assembly according to claim 1, characterized in that: When the lumbar support component is in a supporting mode, the supporting hardness of the mesh (2) is in a relatively low state; when the lumbar support component is switched from the supporting mode to the correcting mode, the airbag component is adjusted to expand and act on the mesh (2), and at this time, the supporting hardness of the mesh (2) is switched from a relatively low state to a relatively high state.

Images