Chair back structure of ergonomic chair

Abstract

The utility model discloses a chair back structure conforming to an ergonomic chair, and relates to the technical field of ergonomic chairs, the chair back structure comprises a supporting bracket, a back supporting cushion, a waist bearing cushion, a shoulder bearing cushion and a hip bearing cushion are arranged on the supporting bracket, a head bearing plate is arranged above the supporting bracket through an adjusting piece, and a backrest is arranged on the back of the supporting bracket. A head bearing pad is mounted on the head bearing plate, the interiors of the waist bearing pad, the shoulder bearing pad and the head bearing pad are hollow and provided with air inlets, and the interiors of the waist bearing pad, the shoulder bearing pad and the head bearing pad are controlled and adjusted through inflation mechanisms; by arranging the supporting bracket, the back supporting pad, the waist bearing pad, the shoulder bearing pad, the hip bearing pad, the head bearing plate, the head bearing pad and the inflation mechanism, the back, the waist, the shoulders, the hip and the head of a user can be supported by the back supporting pad, the waist bearing pad, the shoulder bearing pad, the hip bearing pad, the head bearing plate and the head bearing pad respectively.

Description

Technical Field

[0001] This utility model relates to the field of ergonomic chair technology, specifically to the backrest structure of an ergonomic chair. Background Technology

[0002] Ergonomic chairs feature a generous, unique, stylish, and lightweight design, making them a popular choice for modern homes, entertainment venues, internet cafes, hotels, leisure facilities, conference rooms, and office computer desks. These new environmentally friendly and healthy chairs primarily utilize mesh fabric, eco-friendly cloth, and high-quality memory foam for the seat and backrest, and their design is highly compatible with future furniture trends. They offer excellent breathability and heat dissipation, providing comfort and preventing bacterial growth during use. Furthermore, they reduce pressure on the buttocks and back, press on pressure points, promote blood circulation in the buttocks and back, prevent strain on the neck, shoulders, and lower back, and maintain your health.

[0003] In the existing technology, the backrests of ergonomic chairs are mostly made of memory foam or elastic materials. Over time, foam and elastic materials are prone to deformation and loss of elasticity. In addition, foam needs to be frequently disassembled for cleaning and replacement. Furthermore, the dimensions of ergonomic chairs are mostly fixed specifications, and since there are differences in the curves of the human body, they cannot be adjusted to adapt to different people, resulting in discomfort during use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a backrest structure for an ergonomic chair, which solves the problems of sponge and elastic materials easily deforming and losing elasticity after prolonged use, sponge requiring frequent disassembly for cleaning and replacement, and the fact that ergonomic chairs are mostly designed with fixed dimensions, which cannot be adapted to different people due to differences in human body curves, resulting in discomfort during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a backrest structure conforming to ergonomics, comprising a support bracket, on which a back support pad, a lumbar support pad, a shoulder support pad, and a hip support pad are installed. A head support plate is provided above the support bracket via an adjustable component, and a head support pad is installed on the head support plate. The lumbar support pad, shoulder support pad, and head support pad are all hollow inside and have air inlets. The interior of the lumbar support pad, shoulder support pad, and head support pad is controlled and adjusted by an inflation mechanism.

[0006] Preferably, the inflation mechanism includes an air pump and a multi-port air delivery pipe fixedly installed on the back of the support bracket. The air inlet of the multi-port air delivery pipe is fixedly connected to the air delivery end of the air pump, and the multiple air outlets of the multi-port air delivery pipe are respectively fixedly connected to the air inlets of the waist support pad, the shoulder support pad, and the head support pad.

[0007] Preferably, control valves are installed on each of the multiple outlet ends of the multi-port air supply pipe.

[0008] Preferably, the adjusting component includes a sliding frame fixedly installed on the back of the support bracket, an adjusting rod slidably disposed within the sliding frame and fixedly connected to the head support plate, a plug slidably disposed on the side of the sliding frame and a connecting plate fixed to the end of the plug, and a plurality of insertion holes for the plug to be inserted are provided on the adjusting rod.

[0009] Preferably, a spring is fitted on the outer surface of the plug, and the two ends of the spring are respectively mounted on the connecting plate and the sliding frame.

[0010] Preferably, the support bracket has connecting rods rotatably mounted on its sides at both the back support and hip support positions, and the two connecting rods are hinged to the same mounting plate. An electric push rod is fixed to the side of the support bracket, and the mounting plate is fixedly connected to the output end of the electric push rod.

[0011] Beneficial effects

[0012] This utility model provides a backrest structure for an ergonomic chair. Compared with the prior art, it has the following advantages:

[0013] 1. The backrest structure of this ergonomic chair, through the setting of a support bracket, back support pad, lumbar support pad, shoulder support pad, hip support pad, head support plate, head support pad, and inflation mechanism, uses the back support pad, lumbar support pad, shoulder support pad, hip support pad, head support plate, and head support pad to support the user's back, waist, shoulders, hips, and head respectively. The inflation mechanism can inject air into the lumbar support pad, shoulder support pad, and head support pad, making the lumbar support pad, shoulder support pad, and head support pad into an airbag shape. Due to the air filling, when the user sits on it, the air is compressed and can better conform to the user's body curves, improving the comfort of use.

[0014] 2. The backrest structure of this ergonomic chair features a sliding frame, adjusting rod, plug, and connecting plate. The adjusting rod slides within the sliding frame, causing the head support plate to move synchronously, allowing for height adjustment to meet various usage needs. Inserting the plug into the socket fixes the position of the adjusting rod, thereby fixing the position of the head support plate. Pulling the connecting plate disengages the plug from the socket, releasing the fixation for adjustment. The operation is simple and convenient.

[0015] 3. The backrest structure of this ergonomic chair features an electric push rod and connecting rods. The back support and hip support of the support bracket are designed as elastic connectors. The electric push rods drive the mounting plate to move, which in turn causes the connecting rods on both sides to rotate. These connecting rods then cause the back support and hip support to rotate, open, or fold, allowing for angle adjustment between the back support and hip support plates and improving usability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0017] Figure 2 This is a three-dimensional view of the present invention from another angle;

[0018] Figure 3 This is a three-dimensional schematic diagram of the air delivery pipe of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the head support plate of this utility model;

[0020] Figure 5 For the present utility model Figure 3 Enlarged 3D view of point A;

[0021] Figure 6 For the present utility model Figure 4 Enlarged 3D appearance diagram at point B.

[0022] In the diagram: 1. Support bracket; 2. Back support pad; 3. Hip support pad; 4. Waist support pad; 5. Shoulder support pad; 6. Head support plate; 7. Head support pad; 8. Air pump; 9. Multi-port air supply pipe; 10. Control valve; 11. Connecting rod; 12. Mounting plate; 13. Electric push rod; 14. Sliding frame; 15. Adjusting rod; 16. Connecting plate; 17. Bolt; 18. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides two technical solutions:

[0025] Figures 1-6The first embodiment is shown: a backrest structure of an ergonomic chair, including a support bracket 1, on which a back support pad 2, a lumbar support pad 4, a shoulder support pad 5 and a hip support pad 3 are installed. A head support plate 6 is provided above the support bracket 1 through an adjustable component, and a head support pad 7 is installed on the head support plate 6. The lumbar support pad 4, the shoulder support pad 5 and the head support pad 7 are all hollow inside and have air inlets. The interior of the lumbar support pad 4, the shoulder support pad 5 and the head support pad 7 are all controlled and adjusted by an inflation mechanism.

[0026] By incorporating a support bracket 1, a back support pad 2, a lumbar support pad 4, a shoulder support pad 5, a hip support pad 3, a head support plate 6, a head support pad 7, and an inflation mechanism, the back support pad 2, lumbar support pad 4, shoulder support pad 5, hip support pad 3, head support plate 6, and head support pad 7 can provide support for the user's back, waist, shoulders, hips, and head respectively. The inflation mechanism can inject air into the lumbar support pad 4, shoulder support pad 5, and head support pad 7, making them airbag-like. Due to the air filling, when the user sits on them, the air is compressed and can better conform to the user's body curves, improving the comfort of use.

[0027] Preferably, the inflation mechanism includes an air pump 8 and a multi-port air supply pipe 9 fixedly installed on the back of the support bracket 1. The air inlet end of the multi-port air supply pipe 9 is fixedly connected to the air supply end of the air pump 8, and the multiple air outlet ends of the multi-port air supply pipe 9 are respectively fixedly connected to the air inlets of the waist support pad 4, the shoulder support pad 5 and the head support pad 7.

[0028] By setting up an air pump 8 and a multi-port air delivery pipe 9, the air pump 8 draws in gas and sends it into the multi-port air delivery pipe 9. The gas then enters the lumbar support pad 4, shoulder support pad 5, and head support pad 7 through the multi-port air delivery pipe 9. The size of these pads can be adjusted arbitrarily without the need for repeated disassembly, replacement, or adjustment, thus improving ease of use.

[0029] Preferably, control valves 10 are installed on each of the multiple air outlets of the multi-port air supply pipe 9;

[0030] By setting a control valve 10, the gas can be controlled to enter one of the waist support pad 4, shoulder support pad 5, and head support pad 7, so that the support position of different parts can be finely adjusted and can be adjusted arbitrarily according to the user's preference and comfort.

[0031] Preferably, the adjusting component includes a sliding frame 14 fixedly installed on the back of the support bracket 1, an adjusting rod 15 slidably provided inside the sliding frame 14 and fixedly connected to the head support plate 6, a plug 17 slidably provided on the side of the sliding frame 14 and a connecting plate 16 fixed to the end of the plug 17, and a plurality of insertion holes for the plug 17 to be inserted on the adjusting rod 15.

[0032] By setting up a sliding frame 14, an adjusting rod 15, a plug 17, and a connecting plate 16, the adjusting rod 15 slides inside the sliding frame 14, driving the head support plate 6 to move synchronously, which can adjust the height of the head support plate 6 to meet various usage needs. Inserting the plug 17 into the socket can fix the position of the adjusting rod 15, thereby fixing the position of the head support plate 6. Pulling the connecting plate 16 can disengage the plug 17 from the socket, thereby releasing the fixation for adjustment. The operation is simple and convenient.

[0033] Preferably, a spring 18 is sleeved on the outer surface of the plug 17, and the two ends of the spring 18 are respectively mounted on the connecting plate 16 and the sliding frame 14 at different heights;

[0034] By incorporating spring 18, the elasticity of spring 18 can prevent the plug 17 from coming loose during use, thereby improving the stability of use.

[0035] Preferably, a connecting rod 11 is rotatably mounted on the side of the support bracket 1 at both the back support and hip support positions. The two connecting rods 11 are hinged to the same mounting plate 12. An electric push rod 13 is fixed on the side of the support bracket 1. The mounting plate 12 is fixedly connected to the output end of the electric push rod 13.

[0036] By setting up an electric push rod 13 and a connecting rod 11, the back support and hip support of the support bracket 1 are set as elastic connectors. The electric push rod 13 pushes the mounting plate 12 to move. The movement of the mounting plate 12 drives the connecting rods 11 on both sides to rotate. In turn, the connecting rods 11 on both sides drive the back support and hip support to rotate and open or fold, thereby realizing the angle adjustment between the back support and hip support plate and improving applicability.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] Working principle:

[0039] When in use, control the start of the air pump 8, which draws in gas and sends it into the multi-way air supply pipe 9. Open the control valve 10 to control the gas multi-way air supply pipe 9 to enter the lumbar support pad 4, shoulder support pad 5 and head support pad 7. Adjust as needed according to the user's preference and comfort.

[0040] When the position of the head support plate 6 needs to be adjusted, pull the connecting plate 16 to disengage the plug 17 from the insertion hole, thereby releasing the fixation of the adjusting rod 15. Pull the head support plate 6 to adjust the height of the head support plate 6. After the adjustment is completed, release the connecting plate 16 so that the plug 17 is inserted into the insertion hole under the action of the spring 18, thereby fixing the adjusting rod 15 and the head support plate 6.

[0041] When it is necessary to adjust the angle between the back support and the hip support plate, the electric push rod 13 is activated. The electric push rod 13 pushes the mounting plate 12 to move. The movement of the mounting plate 12 causes the connecting rods 11 on both sides to rotate. In turn, the connecting rods 11 on both sides drive the back support and the hip support to rotate, open, or fold, thereby realizing the angle adjustment between the back support and the hip support plate.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A backrest structure for an ergonomic chair, characterized in that: The device includes a support bracket (1), on which a back support pad (2), a waist support pad (4), a shoulder support pad (5), and a hip support pad (3) are installed. A head support plate (6) is provided above the support bracket (1) via an adjustment mechanism, and a head support pad (7) is installed on the head support plate (6). The waist support pad (4), shoulder support pad (5), and head support pad (7) are all hollow and have air inlets. The waist support pad (4), shoulder support pad (5), and head support pad (7) are all controlled and adjusted by an inflation mechanism.

2. The backrest structure of an ergonomic chair according to claim 1, characterized in that: The inflation mechanism includes an air pump (8) and a multi-port air supply pipe (9) fixedly installed on the back of the support bracket (1). The air inlet of the multi-port air supply pipe (9) is fixedly connected to the air supply end of the air pump (8), and the multiple air outlets of the multi-port air supply pipe (9) are fixedly connected to the air inlets of the waist support pad (4), the shoulder support pad (5), and the head support pad (7), respectively.

3. The backrest structure of the ergonomic chair according to claim 2, characterized in that: Control valves (10) are installed on each of the multiple outlet ends of the multi-port air supply pipe (9).

4. The backrest structure of the ergonomic chair according to claim 1, characterized in that: The adjusting component includes a sliding frame (14) fixedly installed on the back of the support bracket (1). The sliding frame (14) has an adjusting rod (15) that is fixedly connected to the head support plate (6). The sliding frame (14) has a plug (17) that is slidably provided on its side and a connecting plate (16) is fixed to the end of the plug (17). The adjusting rod (15) has a plurality of holes for the plug (17) to be inserted.

5. The backrest structure of the ergonomic chair according to claim 4, characterized in that: A spring (18) is fitted on the outer surface of the plug (17), and the two ends of the spring (18) are respectively mounted on the connecting plate (16) and the sliding frame (14).

6. The backrest structure of the ergonomic chair according to claim 1, characterized in that: The support bracket (1) has connecting rods (11) rotatably mounted on its side at the back support and hip support positions. The two connecting rods (11) are hinged together by the same mounting plate (12). An electric push rod (13) is fixed on the side of the support bracket (1). The mounting plate (12) is fixedly connected to the output end of the electric push rod (13).

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