Training chair with seat cushion for buffering and back cushion for supporting waist

Abstract

The utility model discloses a training chair with seat cushion buffering and back cushion waist supporting linkage, and particularly relates to the technical field of office furniture, the training chair comprises a training chair body, the training chair body comprises a chair frame, a fixing assembly is installed in the chair frame, and a buffering folding frame is installed in the fixing assembly. A user sits on the seat cushion to drive the buffering folding frame on the bottom surface of the seat cushion to work, the buffering folding frame is compressed under stress, pressure is slowly released to achieve the buffering effect of the seat cushion, namely, the seat cushion moves downwards and backwards, and the bottom of the back cushion is driven to move towards one side of the seat cushion through linkage of the buffering folding frame. The top of the back cushion and the second hinge lugs rotate, the back of the user is automatically jacked up, the effect of bearing and supporting the waist is achieved, the user is assisted to develop a good sitting posture habit, damage to the waist due to long-time office work is avoided, and a more comfortable office environment is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of office furniture, and specifically relates to a training chair with a seat cushion buffer and a linkage backrest for lumbar support. Background Art

[0002] A training chair is a derivative product of an office chair and is a chair that people sit on when working at a desk in a sitting position. Training chairs are mainly used in meeting rooms, training classrooms, reading rooms, library materials rooms, laboratories and other places that require long-term sitting work. At the same time, it is also applicable to places such as homes and hotels that need to provide comfortable seats. The existing training chair seat cushions on the market basically have no functions, have a single shape, are prone to fatigue after long sitting, and maintaining the same sitting posture for a long time may cause discomfort in the waist and result in waist pain. Content of the Utility Model

[0003] The purpose of the utility model is to provide a training chair with a seat cushion buffer and a linkage backrest for lumbar support to solve the problems mentioned in the above background art.

[0004] The main technical problem to be solved by the present utility model is:

[0005] After long sitting, it is prone to fatigue, and maintaining the same sitting posture for a long time may cause discomfort in the waist and result in waist pain.

[0006] The present utility model can be realized by the following technical solutions:

[0007] A training chair with a seat cushion buffer and a linkage backrest for lumbar support, including a training chair body. The training chair body includes a chair frame. A fixing component is installed inside the chair frame, and a buffer folding frame is installed inside the fixing component. A seat cushion is fixedly installed on the upper end surface of the buffer folding frame. One side of the top of the chair frame is provided with a hinge ear two, and an armrest frame is arranged on the upper edge of the chair frame. The upper end surface of the hinge ear two is hinged with a backrest, and the hinge ear two and the back of the backrest are rotationally connected through a rotating shaft. The bottom of the back of the backrest is hinged with the buffer folding frame.

[0008] A further technical improvement of the present utility model lies in that: the fixing component includes reinforcement bars installed on both sides of the top of the chair frame. Two connecting columns are fixedly arranged on the inner wall surfaces of the two reinforcement bars. The connecting columns are fixed to the lower end surface of the buffer folding frame. A hinge ear one is installed on the bottom surface of one of the reinforcement bars.

[0009] A further technical improvement of the present utility model lies in that: the buffer folding frame includes an upper frame. A lower frame is arranged below the upper frame. One end of the inside of the upper frame is fixed with a mounting rod. A gas rod is hinged outside the mounting rod. The fixed end of the gas rod is hinged with the hinge ear one.

[0010] A further technical improvement of the present utility model lies in that: one end of the outer surface of the upper frame is hinged with a connecting iron sheet, one end of the connecting iron sheet is hinged with the outer surface of one end of the lower frame, the other end of the outer surface of the upper frame is hinged with a linkage connecting iron sheet, one end of the linkage connecting iron sheet is hinged with the outer surface of the other end of the lower frame, and the other end of the linkage connecting iron sheet is hinged with a top waist connecting iron sheet, and the end of the top waist connecting iron sheet is hinged with the bottom of the backrest on the back surface.

[0011] A further technical improvement of the present utility model lies in that: a plurality of mounting grooves are provided on the upper surface of the upper frame, and plug-in columns for cooperating with the mounting grooves are arranged on the bottom surface of the seat cushion.

[0012] A further technical improvement of the present utility model lies in that: a fixing rod is arranged on one side of the chair frame adjacent to the reinforcing rod, the fixing rod is located on one side of the seat cushion, and a bending groove for rotatably cooperating with the fixing rod is provided on the bottom surface of the top waist connecting iron sheet.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. When a user sits on the seat cushion, the buffer folding frame on the bottom surface of the seat cushion is driven to work. The buffer folding frame is compressed under force, and the pressure is slowly released to achieve the buffering effect of the seat cushion, that is, the seat cushion moves downward and backward. The bottom of the backrest is driven to move toward one side of the seat cushion through the linkage of the buffer folding frame, and the top of the backrest rotates with the hinge ear two, automatically lifting the user's back, playing a role in supporting the waist, assisting the user to develop good sitting postures, avoiding damage to the waist caused by long-term office work, and providing a more comfortable office environment;

[0015] 2. By providing a fixing component, the lower end surface of the lower frame is fitted and installed on two connecting columns, and bolts are used to fasten the connection position, providing support for the installation position of the buffer folding frame, and connecting the buffer folding frame with the fixing component, which is convenient for installing the buffer folding frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the accompanying drawings.

[0017] Figure 1 is an exploded structural schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the buffer folding frame of the present utility model;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 4 is a structural schematic diagram of the present utility model before the stress state;

[0021] Figure 5 This is a structural schematic diagram of the present utility model after being under stress.

[0022] In the figure: 1, training chair body; 2, chair frame; 3, reinforcement rod; 4, connecting column; 5, buffer folding frame; 6, seat cushion; 7, hinge ear one; 8, fixed rod; 9, hinge ear two; 10, backrest cushion; 11, upper frame; 12, lower frame; 13, connecting iron sheet; 14, mounting rod; 15, gas rod; 16, linkage connecting iron sheet; 17, top waist connecting iron sheet; 18, bending groove. Specific embodiments

[0023] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, describe in detail the specific embodiments, structures, features, and effects according to the present utility model.

[0024] Please refer to Figures 1 - 5 As shown, the present utility model provides a training chair with a seat cushion buffer and a linkage backrest top waist, including a training chair body 1. The training chair body 1 includes a chair frame 2. A fixing component is installed inside the chair frame 2. A buffer folding frame 5 is installed inside the fixing component. A seat cushion 6 is fixedly installed on the upper end surface of the buffer folding frame 5. One side of the top of the chair frame 2 is provided with a hinge ear two 9, and an armrest frame is provided at the upper edge of the chair frame 2. The upper end surface of the hinge ear two 9 is hinged with a backrest cushion 10, and the hinge ear two 9 and the back of the backrest cushion 10 are rotationally connected through a rotating shaft. The bottom of the back of the backrest cushion 10 is hinged with the buffer folding frame 5. During work, the user sits on the seat cushion 6, driving the buffer folding frame 5 on the bottom surface of the seat cushion 6 to work. The buffer folding frame 5 is compressed by force, and the pressure is slowly released to achieve the buffering effect of the seat cushion 6. Through the linkage of the buffer folding frame 5, the bottom of the backrest cushion 10 is driven to move towards one side of the seat cushion 6, lifting the user's back. The top of the backrest cushion 10 rotates with the hinge ear two 9, assisting the user to develop good sitting postures, avoiding damage to the waist caused by long-term office work, and providing a more comfortable office environment.

[0025] Refer to Figure 1 As shown, the fixing component includes reinforcement rods 3 installed on both sides of the top of the chair frame 2. Two connecting columns 4 are fixedly arranged on the inner wall surfaces of the two reinforcement rods 3. The connecting columns 4 are fixed to the lower end surface of the buffer folding frame 5. A hinge ear one 7 is installed on the bottom surface of one of the reinforcement rods 3. The connecting columns 4 are arranged in a frame structure. The lower end surface of the buffer folding frame 5 is fitted and installed on the two connecting columns 4, and the connection position is fastened with bolts.

[0026] Refer to Figure 2 、 Figure 4 and Figure 5As shown, the buffer folding frame 5 includes an upper frame 11. A lower frame 12 is arranged below the upper frame 11. One end inside the upper frame 11 is fixed with a mounting rod 14. An air rod 15 is hinged to the outside of the mounting rod 14. The fixed end of the air rod 15 is hinged to the hinge ear one 7. One end of the outer surface of the upper frame 11 is hinged with a connecting iron sheet 13. One end of the connecting iron sheet 13 is hinged to the outer surface of one end of the lower frame 12. The other end of the outer surface of the upper frame 11 is hinged with a linkage connecting iron sheet 16. One end of the linkage connecting iron sheet 16 is hinged to the outer surface of the other end of the lower frame 12. The other end of the linkage connecting iron sheet 16 is hinged with a top waist connecting iron sheet 17. The end of the top waist connecting iron sheet 17 is hinged to the bottom of the back of the backrest 10. During specific buffering, such as Figure 4 As shown, this state is the state without external force. When the user sits on the seat cushion 6 (i.e., when the seat cushion 6 is pressed), refer to Figure 5 As shown, the seat cushion 6 is subjected to the pressure of sitting down. The air rod 15 inside the buffer folding frame 5 is compressed by the force. The pressure is slowly released. The positions of the upper frame 11 and the lower frame 12 connected to the seat cushion 6 are displaced. The upper frame 11 and its seat cushion 6 move downward and backward, causing the connecting iron sheet 13 to rotate. At the same time, one end of the linkage connecting iron sheet 16 connecting the upper frame 11 and the lower frame 12 rotates downward, pushing the top waist connecting iron sheet 17 to rotate in the direction of the backrest 10, thereby pushing the backrest 10 forward. The backrest 10 rotates along the rotating shaft in the hinge ear two 9, thus realizing the top waist function, making the use more comfortable and relaxing, and not easily making people tired in the long-term use state.

[0027] Refer to Figure 2 As shown, several mounting grooves are provided on the upper surface of the upper frame 11. Plug posts matching with the mounting grooves are arranged on the bottom surface of the seat cushion 6. The seat cushion 6 and the upper frame 11 are designed as a detachable structure, which is convenient for assembly. When the air rod 15 has a buffering failure, it is convenient to remove the seat cushion 6 for maintenance.

[0028] Refer to Figure 3 As shown, a fixed rod 8 installed on the chair frame 2 is arranged on one side of the reinforcing rod 3. The fixed rod 8 is located on one side of the seat cushion 6. A bending groove 18 that rotates in cooperation with the fixed rod 8 is provided on the bottom surface of the top waist connecting iron sheet 17. When the seat cushion 6 is subjected to the pressure of sitting down, the top waist connecting iron sheet 17 is driven by the linkage connecting iron sheet 16 to rotate. At this time, the bending groove 18 in the top waist connecting iron sheet 17 rotates with the fixed rod 8, that is, the top of the top waist connecting iron sheet 17 pushes the bottom of the backrest 10 to move forward, and the backrest 10 tops the waist of the user, playing a role in supporting the waist and improving the comfort of riding.

[0029] In use, the user sits on the seat cushion 6, driving the buffer folding frame 5 on the bottom surface of the seat cushion 6 to work. The buffer folding frame 5 is compressed under force, and the pressure is slowly released to achieve the buffering effect of the seat cushion 6, that is, the seat cushion 6 moves downward and backward. Through the linkage of the buffer folding frame 5, the bottom of the backrest 10 is driven to move toward one side of the seat cushion 6, and the top of the backrest 10 rotates with the hinge ear II 9, automatically lifting the user's back, playing a role in supporting the waist, assisting the user to develop good sitting postures, avoiding damage to the waist caused by long-term office work, and providing a more comfortable office environment;

[0030] By setting the fixing component, the lower end surface of the lower frame 12 is fitted and installed on the two connecting columns 4, and bolts are used to fasten the connection position, providing support for the installation position of the buffer folding frame 5, connecting the buffer folding frame 5 with the fixing component, and facilitating the installation of the buffer folding frame 5.

[0031] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A training chair with a seat cushion buffer and a linkage backrest for lumbar support, comprising a training chair body (1), characterized in that: The training chair body (1) includes a chair frame (2). A fixing component is installed inside the chair frame (2), and a buffer folding frame (5) is installed inside the fixing component. A seat cushion (6) is fixedly installed on the upper end surface of the buffer folding frame (5). One side of the top of the chair frame (2) is provided with a second hinge ear (9), and an armrest frame is arranged on the upper edge of the chair frame (2). A backrest (10) is hinged to the upper end surface of the second hinge ear (9), and the second hinge ear (9) is rotationally connected to the back surface of the backrest (10) through a rotating shaft. The bottom of the back surface of the backrest (10) is hinged to the buffer folding frame (5).

2. The training chair with a seat cushion buffer and a linkage backrest for lumbar support according to claim 1, wherein The fixing component includes reinforcing bars (3) installed on both sides of the top of the chair frame (2). Two connecting columns (4) are fixedly arranged on the inner wall surfaces of the two reinforcing bars (3). The connecting columns (4) are fixed to the lower end surface of the buffer folding frame (5). A first hinge ear (7) is installed on the bottom surface of one of the reinforcing bars (3).

3. The training chair with a seat cushion buffer and a linkage backrest for lumbar support according to claim 1, characterized in that, The buffer folding frame (5) includes an upper frame (11). A lower frame (12) is arranged below the upper frame (11). One end inside the upper frame (11) is fixed with a mounting rod (14). A gas rod (15) is hinged to the outside of the mounting rod (14). The fixed end of the gas rod (15) is hinged to the first hinge ear (7).

4. The training chair with a seat cushion buffer and a linkage backrest for lumbar support according to claim 3, characterized in that, One end of the outer surface of the upper frame (11) is hinged with a connecting iron sheet (13). One end of the connecting iron sheet (13) is hinged to the outer surface of one end of the lower frame (12). The other end of the outer surface of the upper frame (11) is hinged with a linkage connecting iron sheet (16). One end of the linkage connecting iron sheet (16) is hinged to the outer surface of the other end of the lower frame (12). The other end of the linkage connecting iron sheet (16) is hinged with a top waist connecting iron sheet (17). The end of the top waist connecting iron sheet (17) is hinged to the bottom of the back surface of the backrest (10).

5. The training chair with a seat cushion buffer and a linkage backrest for lumbar support according to claim 3, characterized in that A plurality of mounting grooves are provided on the upper surface of the upper frame (11). Plug-in columns for cooperating with the mounting grooves are arranged on the bottom surface of the seat cushion (6).

6. The training chair with a seat cushion buffer linkage backrest for lumbar support according to claim 4, characterized in that, A fixing rod (8) is arranged on one side of the chair frame (2) adjacent to the reinforcing bar (3). The fixing rod (8) is located on one side of the seat cushion (6). A bending groove (18) for rotatably cooperating with the fixing rod (8) is provided on the bottom surface of the top waist connecting iron sheet (17).

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