Waist support structure of office chair

Abstract

The utility model discloses a waist support structure of an office chair, which comprises a support air bag, a connecting plate I, a connecting plate II, a support component and a limiting component, the support air bag is arranged in a cylindrical cavity, one end of the connecting plate I is fixedly connected to one side of the upper part of the support air bag, and one end of the connecting plate II is fixedly connected to the other side of the upper part of the support air bag; the limiting assembly is fixedly connected to the side wall of the first supporting plate and used for device limiting installation, and the supporting assembly is fixedly connected to the side wall of the second connecting plate and used for waist supporting. The utility model belongs to the technical field of office chairs, and particularly relates to a waist support structure of an office chair, which reduces the movement of the waist support structure, stably acts on a waist support and improves the comfort of the back of the office chair.

Description

TECHNICAL FIELD

[0001] The utility model belongs to office chair technical field, especially relate to a waist support structure of office chair. BACKGROUND

[0002] Office chair is all the chair for office, mainly help people reduce physical fatigue, improve work efficiency.

[0003] The chair back of existing office chair adopts ergonomic design, the waist position is prominent, and the whole support is attached to the human back, so that the connecting place of chair back and seat surface is in vacancy. The existing external hanging type waist support structure realizes support through elastic structure, and is easy to slip to the downward vacancy position when hanging on the chair back, is unstable in contact with the waist, and is deformed for long-term leaning, affecting the support effect. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of reducing the movement of the waist support structure, stabilizing the support on the waist, and improving the comfort of the back of the office chair.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a waist support structure of office chair, including support air bag, support air bag is set to cylindrical cavity, still including connecting plate one, connecting plate two, support assembly and limit component, one end of connecting plate one is fixedly connected on one side of upper portion of support air bag, one end of connecting plate two is fixedly connected on the other side of upper portion of support air bag, limit component is fixedly connected on the side wall of support plate one, is used for device limit installation, support assembly is fixedly connected on the side wall of connecting plate two, is used for waist support.

[0006] Further, the connecting plate one and the connecting plate two are symmetrically arranged in opposite inclined extension, and a buffer channel is formed between the connecting plate one and the connecting plate two.

[0007] Further, the limit component includes a connecting air bag and a connecting pipe one, the connecting air bag is fixedly connected to the side wall of the connecting plate one, the connecting pipe one is connected between the support air bag and the connecting air bag, and the connecting air bag is in a runway shape.

[0008] Further, the support assembly includes a limit air bag, a partition plate and a connecting pipe two, the limit air bag is fixedly connected to the side wall of the connecting plate two away from the connecting plate one, the partition plate is fixedly connected to the inside of the limit air bag, and is symmetrically arranged, the pressure cavities are formed between the symmetric partition plates, the buffer cavities are formed on both sides of the adjacent pressure cavities, and the connecting pipe two is connected between the pressure cavities and the support air bag.

[0009] Further, the partition plate has a through hole, the pressure cavities and the buffer cavities are connected by the through hole, and a rubber valve is arranged in the through hole.

[0010] Furthermore, the limiting airbag is designed with a concave central arc shape and convex sides.

[0011] The beneficial effects of this utility model after adopting the above structure are as follows: For the lumbar stability support of office chairs, the support airbag is placed at the connection between the chair back and the seat to fill the gap. With the help of the limiting component, the device is put on the chair back to achieve stable placement of the device. The support component contacts the waist and limits the waist on both sides. When leaning back, the connecting plate one and the connecting plate two approach each other and compress the buffer channel. The support airbag and the limiting airbag are buffered by the support airbag, realizing air flow between each airbag, increasing the stability of the lumbar support when leaning back and improving the buffer strength. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] Figure 1 This is a schematic diagram of the overall structure of the lumbar support structure for an office chair proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of a lumbar support structure for an office chair proposed in this utility model.

[0015] Figure 3 This is a half-sectional view of a lumbar support structure for an office chair according to the present invention.

[0016] Figure 4 A schematic diagram of the internal structure of the support component of the lumbar support structure of an office chair proposed in this utility model;

[0017] Figure 5 for Figure 4 Enlarged view of part A.

[0018] In the attached diagram: 1. Support airbag, 2. Connecting plate one, 3. Connecting plate two, 4. Support assembly, 5. Limiting assembly, 6. Buffer channel, 7. Connecting airbag, 8. Connecting tube one, 9. Limiting airbag, 10. Partition, 11. Connecting tube two, 12. Pressure chamber, 13. Buffer chamber, 14. Through hole, 15. Rubber valve. Detailed Implementation

[0019] like Figures 1-5As shown in the figure, a waist support structure of an office chair, which comprises a supporting air bag 1, the supporting air bag 1 is arranged in a cylindrical cavity, further comprises a connecting plate 1 2, a connecting plate 3, a supporting assembly 4 and a limiting assembly 5, one end of the connecting plate 1 2 is fixedly connected to one side of the upper part of the supporting air bag 1, one end of the connecting plate 3 is fixedly connected to the other side of the upper part of the supporting air bag 1, the limiting assembly 5 is fixedly connected to the side wall of the supporting plate 1, for device limiting installation, the supporting assembly 4 is fixedly connected to the side wall of the connecting plate 3, for waist support, the connecting plate 1 2 and the connecting plate 3 are arranged in a symmetrical distribution of opposite inclined extension, and a buffer channel 6 is formed between the connecting plate 1 2 and the connecting plate 3, when the device is installed, the connecting plate 1 2 and the connecting plate 3 support the supporting assembly 4 and the limiting assembly 5 respectively, the limiting assembly 5 is sleeved on the outside of the chair back from top to bottom, so that the supporting air bag 1 is clamped in the gap between the seat surface and the chair back, keeping the device stable support, when a person leans, the waist contacts the supporting assembly 4, at the same time, the connecting plate 1 2 and the connecting plate 3 are close to each other, and the buffer channel 6 is extruded.

[0020] As shown in the figure, Figure 1 and Figure 2 In order to stably connect the device on the chair back, the limiting assembly 5 comprises a connecting air bag 7 and a connecting pipe 1 8, the connecting air bag 7 is fixedly connected to the side wall of the connecting plate 1 2, the connecting pipe 1 8 is communicated between the supporting air bag 1 and the connecting air bag 7, the connecting air bag 7 is arranged in a runway shape, the connecting air bag 7 is sleeved on the chair back and is pressed and slid downward, and is clamped at both sides of the handle, at the same time, the supporting air bag 1 is located at the connection between the seat surface and the chair back, the device is installed on the seat, and the connecting air bag 7 is communicated with the supporting air bag 1 through the connecting pipe 1 8, leaning makes gas enter the connecting air bag 7 through the supporting air bag 1, and the locking effect of the connecting air bag 7 is increased.

[0021] As shown in the figure, Figure 2 , Figure 3 and Figure 5As shown, in order to increase the cushioning support of the chair back to the waist and improve the support stability, the support assembly 4 comprises a limiting air bag 9, a partition plate 10 and a connecting pipe two 11, the limiting air bag 9 is fixedly connected to the side wall of the connecting plate two 3 away from the connecting plate one 2, the partition plate 10 is fixedly connected to the inside of the limiting air bag 9, and is symmetrically arranged, the symmetric partition plates 10 form a pressure chamber 12 between them, the two sides of the adjacent pressure chambers 12 form a buffer chamber 13, the connecting pipe two 11 is communicated between the pressure chamber 12 and the support air bag 1, the limiting air bag 9 is recessed in the middle and protrudes on both sides, the partition plate 10 is provided with a through hole 14, the pressure chamber 12 and the buffer chamber 13 are communicated through the through hole 14, and a rubber valve 15 is arranged in the through hole 14, when the back of the person contacts the limiting air bag 9, the protruding structure on both sides is first extruded, the gas in the buffer chamber 13 on both sides enters the pressure chamber 12 through the through hole 14, the gas in the pressure chamber 12 enters the support air bag 1 through the connecting pipe two 11, then the connecting pipe one 8 enters the limiting air bag 9, air flow is realized between the air bags, the impact force of leaning is buffered, when the pressure in the pressure chamber 12 increases and is equal to the pressure of the buffer chamber 13 on both sides, the waist of the person is stably supported, the rubber valve 15 increases the pressure of the flowing gas, and the buffering effect of the buffer chamber 13 is improved.

[0022] In specific use, the operator installs the device on the chair back, puts the connecting air bag 7 on the chair back and slides downward to be clamped at the two side handles, and the support air bag 1 is located at the connection between the seat surface and the chair back, and in the initial state, the connecting plate one 2 and the connecting plate two 3 are separated from each other.

[0023] When the back of the person leans against the limiting air bag 9, the connecting plate one 2 and the connecting plate two 3 are close to each other, the buffer channel 6 is extruded, the protruding structure on both sides is first extruded, the gas in the buffer chamber 13 on both sides enters the pressure chamber 12 through the through hole 14, the gas in the pressure chamber 12 enters the support air bag 1 through the connecting pipe two 11, then the connecting pipe one 8 enters the limiting air bag 9, air flow is realized between the air bags, the impact force of leaning is buffered, when the pressure in the pressure chamber 12 increases and is equal to the pressure of the buffer chamber 13 on both sides, the waist of the person is stably supported, the rubber valve 15 increases the pressure of the flowing gas, and the buffering effect of the buffer chamber 13 is improved.

[0024] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the present application.

Claims

1. A lumbar support structure for an office chair comprising a support air bag (1) which is provided in the form of a cylindrical cavity, characterized in that: It also includes connecting plate one (2), connecting plate two (3), support assembly (4) and limiting assembly (5), one end of the connecting plate one (2) is fixedly connected to one side of the upper part of the support air bag (1), one end of the connecting plate two (3) is fixedly connected to the other side of the upper part of the support air bag (1), the limiting assembly (5) is fixedly connected to the side wall of the support plate one, which is used for device limiting installation, and the support assembly (4) is fixedly connected to the side wall of the connecting plate two (3), which is used for waist support.

2. The lumbar support structure of claim 1, wherein: The connecting plate one (2) and the connecting plate two (3) are symmetrically arranged in opposite inclined extension, and the connecting plate one (2) and the connecting plate two (3) form a buffer channel (6).

3. The lumbar support structure of claim 1, wherein: The limiting assembly (5) includes connecting air bag (7) and connecting pipe one (8), the connecting air bag (7) is fixedly connected to the side wall of the connecting plate one (2), the connecting pipe one (8) is communicated between the support air bag (1) and the connecting air bag (7), and the connecting air bag (7) is in a runway shape.

4. The lumbar support structure of claim 1, wherein: The support assembly (4) includes limiting air bag (9), partition plate (10) and connecting pipe two (11), the limiting air bag (9) is fixedly connected to the side wall of the side of the connecting plate two (3) away from the connecting plate one (2), the partition plate (10) is fixedly connected to the inside of the limiting air bag (9), and is symmetrically arranged, the pressure cavity (12) is formed between the symmetric partition plates (10), the buffer cavity (13) is formed on both sides of the adjacent pressure cavities (12), and the connecting pipe two (11) is communicated between the pressure cavity (12) and the support air bag (1).

5. The lumbar support structure of claim 4, wherein: The partition plate (10) is provided with a through hole (14), the pressure cavity (12) and the buffer cavity (13) are communicated by the through hole (14), and the through hole (14) is provided with a rubber valve (15).

6. The lumbar support structure of claim 4, wherein: The limiting air bag (9) is recessed in the middle and protrudes on both sides.

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