An office chair with lumbar support function

Abstract

The utility model relates to the technical field of office chairs, and discloses an office chair with a waist support function. The utility model includes an office chair, on the backrest frame of the office chair, two left-right symmetrical office chair brackets are fixedly provided, and a waist support plate is provided on the office chair bracket for sliding up and down adjustment, and a supporting plate with an arc surface is connected to the waist support plate for supporting the waist. Compared with traditional chairs without independent waist support, the utility model can change the support point of the waist by adjusting the height of the waist support plate and the position of the waist support, so that the support of the waist is more accurate and comfortable.

Description

Technical Field

[0001] The utility model relates to the technical field of office chairs, in particular to an office chair with a waist supporting function. Background Art

[0002] The existing office chair body does not have an independent lumbar support and cannot provide adaptive support for the lumbar position of different people, resulting in discomfort when sitting for a long time. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, an office chair with a lumbar support function is provided, which solves the above problems.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] An office chair with a lumbar support function comprises an office chair, on the back frame of which two left-right symmetrical office chair brackets are fixedly provided, on the office chair brackets a lumbar support plate is provided which can be slid up and down and adjusted, and the lumbar support plate is connected to a supporting plate with an arc surface for supporting the waist.

[0006] Preferably, guide sliders are fixedly provided at both ends of the waist support plate, and the guide sliders are slidably mounted on the office chair bracket up and down.

[0007] Preferably, a hand screw tightener is threadedly connected to the guide slider, and the office chair bracket can be clamped and fixed by manually tightening the hand screw tightener.

[0008] Preferably, a hand screw adjuster is threadedly connected to the lumbar support plate, and a lumbar support bracket is rotatably provided at the front end of the hand screw adjuster. When the hand screw adjuster is rotated, the hand screw adjuster moves forward and backward relative to the lumbar support plate to adjust the supporting position of the lumbar support bracket.

[0009] Preferably, a plurality of through holes are provided at intervals on the end surface of the waist support that fits against the waist, so as to increase air permeability.

[0010] Preferably, a sponge pad is fixedly provided on the end surface of the lumbar support that fits the waist.

[0011] The advantages and positive effects of the utility model are: compared with the traditional chair without independent lumbar support, the chair can change the support point of the waist by adjusting the height of the lumbar support plate and the position of the lumbar support bracket, so that the support of the waist is more accurate and comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 yes Figure 1 A schematic structural diagram of the middle waist support plate 12. DETAILED DESCRIPTION

[0015] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0016] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0017] like Figure 1-2 As shown, an office chair with lumbar support function described in the utility model includes an office chair 10, on the back frame of the office chair 10 are fixedly provided with two left-right symmetrical office chair brackets 11, on the office chair brackets 11 are provided a lumbar support plate 12 which can be adjusted up and down, and the lumbar support plate 12 is connected to a supporting plate with an arc surface for supporting the waist.

[0018] Preferably, guide sliders 13 are fixedly provided at both ends of the waist support plate 12 , and the guide sliders 13 are slidably mounted on the office chair bracket 11 up and down.

[0019] Preferably, a hand screw tightener 14 is threadedly connected to the guide slider 13 , and the office chair bracket 11 can be clamped and fixed by manually tightening the hand screw tightener 14 .

[0020] Preferably, a hand screw adjuster 15 is threadedly connected to the lumbar support plate 12, and a lumbar support bracket 16 is rotatably provided at the front end of the hand screw adjuster 15. When the hand screw adjuster 15 is rotated, the hand screw adjuster 15 moves forward and backward relative to the lumbar support plate 12 to adjust the supporting position of the lumbar support bracket 16.

[0021] Preferably, a plurality of through holes are provided at intervals on the end surface of the waist support bracket 16 that fits against the waist, so as to increase air permeability.

[0022] Preferably, a sponge pad is fixedly provided on the end surface of the waist support bracket 16 that fits the waist.

[0023] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. An office chair with lumbar support function, comprising an office chair (10), characterized in that: Two left-right symmetrical office chair brackets (11) are fixedly provided on the backrest frame of the office chair (10); a waist support plate (12) is provided on the office chair bracket (11) for upward and downward sliding adjustment; and a supporting plate with an arc surface is connected to the waist support plate (12) for supporting the waist.

2. The office chair with lumbar support function according to claim 1, characterized in that: Guide sliders (13) are fixedly provided at both ends of the waist support plate (12), and the guide sliders (13) are slidably mounted on the office chair bracket (11) up and down.

3. The office chair with lumbar support function according to claim 2, characterized in that: A hand-tightened screw tightener (14) is threadedly connected to the guide slide block (13), and the office chair bracket (11) can be clamped and fixed by manually tightening the hand-tightened screw tightener (14).

4. The office chair with lumbar support function according to claim 3, characterized in that: A hand screw adjuster (15) is threadedly connected to the lumbar support plate (12), and a lumbar support bracket (16) is rotatably provided at the front end of the hand screw adjuster (15). When the hand screw adjuster (15) is rotated, the hand screw adjuster (15) moves forward and backward relative to the lumbar support plate (12) to adjust the support position of the lumbar support bracket (16).

5. The office chair with lumbar support function according to claim 4, characterized in that: A plurality of through holes are arranged at intervals on the end surface of the waist support bracket (16) that fits the waist, so as to increase air permeability.

6. The office chair with lumbar support function according to claim 5, characterized in that: A sponge pad is fixedly disposed on the end surface of the waist support bracket (16) that fits the waist.

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