Lumbar vertebra protection structure of office chair

Abstract

The utility model relates to the technical field of lumbar vertebra protection structures, in particular to an office chair lumbar vertebra protection structure which comprises a U-shaped frame and a main back cushion, sliding grooves are formed in the left end and the right end of the U-shaped frame in a penetrating mode, a mounting plate is connected between the interiors of the two sliding grooves in a sliding mode, and a first threaded rod is connected to the right end of the upper portion of the U-shaped frame in a penetrating and threaded mode. The lower end of the first threaded rod is rotatably connected with the mounting plate, two rectangular grooves which are symmetrically distributed left and right are formed in the front end of the mounting plate in a penetrating mode, T-shaped sliding blocks are slidably connected to the interiors of the two rectangular grooves, and mounting blocks are fixedly connected to the front end faces of the two T-shaped sliding blocks; side protection pads are mounted on the front end surfaces of the two mounting blocks, and a plurality of uniformly distributed threaded holes communicated with the two rectangular grooves are formed in the left end and the right end of the upper end surface of the mounting plate, so that the purposes that the height and the width of the back cushion can be adjusted according to people with different heights and body types, and the back cushion is convenient to use are achieved.

Description

TECHNICAL FIELD

[0001] The utility model lumbar vertebrae protection structure technical field, specifically for a kind of office chair lumbar vertebrae protection structure. BACKGROUND

[0002] The lumbar vertebrae protection structure of office chair, such as lumbar support or lumbar pillow, can provide key support for the waist. This support helps maintain the physiological lordosis of the lumbar vertebrae and prevents the lumbar vertebrae from being deformed or damaged due to prolonged improper sitting posture.

[0003] The existing lumbar vertebrae protection structure of office chair is usually fixed in one piece. The height and width of the back cushion are relatively fixed and cannot be well adapted to people of different heights and body types. For example, shorter people may feel that the waist support position is too high and rests on the back instead of the waist, while taller people may feel that the position is too low and does not provide adequate support, making it inconvenient to use. Therefore, an office chair lumbar vertebrae protection structure is proposed. INVENTION CONTENTS

[0004] The utility model aims at providing an office chair lumbar vertebrae protection structure that can adjust the height and width of the back cushion according to different heights and body types, making it convenient to use.

[0005] The utility model aims at providing an office chair lumbar vertebrae protection structure, including U type frame and main back cushion, the left and right ends of U type frame are all through and are equipped with sliding slot, the inside of two sliding slots is slidably connected with mounting plate, the right end of U type frame top is through and is connected with first threaded rod, the lower end of first threaded rod is rotatably connected with mounting plate, the front end of mounting plate is through and is equipped with two rectangular grooves which are symmetrically distributed, the inside of two rectangular grooves is slidably connected with T type sliding block, the front end surface of two T type sliding blocks is all fixedly connected with mounting block, the front end surface of two mounting blocks is all installed with side protection pad, the left and right ends of mounting plate upper end surface are all equipped with multiple thread holes which are evenly distributed and are communicated with two rectangular grooves, the upper end of two T type sliding blocks is all through and is equipped with insertion hole, and the insertion hole is installed with threaded insertion rod between one of thread holes.

[0006] In order to buffer the pressure of the body on the back cushion, as an office chair lumbar vertebrae protection structure of the utility model, the front end of the mounting plate is provided with a groove, and a plurality of evenly distributed elastic expansion rods are fixedly connected between the inner wall of the groove and the main back cushion.

[0007] In order to increase the stability of the mounting plate, as an office chair lumbar vertebrae protection structure of the utility model, the upper end of the mounting plate is fixedly connected with a second threaded rod, the outer wall of the second threaded rod is threadedly connected with a limiting ring, and the top passes through the through hole of the upper end of the U type frame.

[0008] In order to play the role of massage to the user, as a kind of office chair lumbar protection structure preferred, the outer wall of the main back cushion and two side protection pads is provided with a lug.

[0009] In order to fix the U-shaped frame on the office chair conveniently, as a kind of office chair lumbar protection structure preferred, the left and right sides between the rear end of the U-shaped frame are fixedly connected with a bandage.

[0010] In order to increase the comfort of the user, as a kind of office chair lumbar protection structure preferred, the front end face of the U-shaped frame is provided with a sponge pad.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses, through rotating first threaded rod drive and the installation plate that is connected with it upper and lower movement can drive main back cushion, two T type sliding blocks, two mounting blocks and two side protection pads upper and lower movement, through two mounting blocks inside two rectangular grooves sliding, can adjust the distance between two side protection pads, after adjusting good position, through threaded plug rod can be positioned to two T type sliding blocks, to the two sides of the waist of the user of different waist circumference play the role of auxiliary support, in conclusion, reach can according to the height and the body shape of different people to adjust the height and width of back cushion, convenient to use purpose. DETAILED DESCRIPTION

[0013] Fig. 1 It is the overall structural drawing of the utility model;

[0014] Fig. 2 It is the overhead structure drawing of the utility model;

[0015] Fig. 3 It is the T type sliding block structure drawing of the utility model.

[0016] In the drawing: 1, U-shaped frame;2, sliding slot;3, first threaded rod;4, second threaded rod;5, limit ring;6, installation plate;7, elastic telescopic rod;8, rectangular groove;9, mounting block;10, side protection pad;11, main back cushion;12, threaded hole;13, plug rod;14, bandage;15, T type sliding block;16, jack;17, recess. DETAILED DESCRIPTION

[0017] Please refer to Figs. 1 to 3The utility model provides an office chair lumbar vertebra protection structure, including U type frame 1 and main back cushion 11, and the left and right ends of U type frame 1 are all through the groove 2 of setting, and the inside between two grooves 2 is slidably connected with the mounting plate 6, and the right end above U type frame 1 is through and is threadedly connected with first threaded rod 3, and the lower end of first threaded rod 3 is rotatably connected with mounting plate 6, and the front end of mounting plate 6 is through the rectangular slot 8 of setting of distributing two left and right symmetrical, and the inside of two rectangular slots 8 is slidably connected with T type sliding block 15, and the front end surface of two T type sliding blocks 15 is all fixedly connected with mounting block 9, and the front end surface of two mounting blocks 9 is all installed with side protection pad 10, and the left and right ends of mounting plate 6 upper end surface are all set with a plurality of distribution even and respectively with two rectangular slots 8 intercommunication's threaded hole 12, and the upper end of two T type sliding blocks 15 is all through the insertion hole 16 of setting, and the insertion hole 16 is installed with threaded plug rod 13 between one threaded hole 12.

[0018] In the embodiment: by rotating first threaded rod 3 can drive and be connected with mounting plate 6 up and down movement, and mounting plate 6 up and down movement will drive main back cushion 11, two T type sliding blocks 15, two mounting blocks 9 and two side protection pad 10 up and down movement, to adapt to the person of different height, by two mounting blocks 9 in two rectangular slots 8 inside sliding, can adjust the distance between two side protection pad 10, after adjusting position, by threaded plug rod 13 can be positioned two T type sliding blocks 15, to the two sides of the waist of the user of different waist circumference play the role of auxiliary support.

[0019] As a technical optimization scheme of the utility model, the front end of mounting plate 6 is provided with a groove 17, and a plurality of evenly distributed elastic expansion rods 7 are fixedly connected between the inner side wall of the groove 17 and the main back cushion 11.

[0020] In the embodiment: by a plurality of elastic expansion rods 7 can buffer the pressure of body to cushion.

[0021] As a technical optimization scheme of the utility model, the upper end of the mounting plate 6 is fixedly connected with a second threaded rod 4, the outer side wall of the second threaded rod 4 is threadedly connected with a limiting ring 5, and the top passes through the through hole of the upper end of the U-shaped frame 1.

[0022] In the embodiment: by limiting ring 5 can be positioned second threaded rod 4, increase the stability of mounting plate 6.

[0023] As a technical optimization scheme of the utility model, the outer wall of the main back cushion 11 and the two side protection pads 10 is provided with a protruding block.

[0024] In the embodiment: by protruding block can play the role of massaging the user.

[0025] As a technical optimization scheme of the utility model, the left and right sides between the rear end of the U-shaped frame 1 are fixedly connected with a binding belt 14.

[0026] In this embodiment: through the binding band 14 can be convenient to fix the U-shaped frame 1 on the office chair.

[0027] As a technical optimization scheme of the utility model, the front end face of the U-shaped frame 1 is provided with a sponge pad.

[0028] In this embodiment: the sponge pad can increase the comfort of the user.

[0029] Working principle: when using, first, through the binding band 14 can be convenient to fix the U-shaped frame 1 on the office chair, then through rotating the first threaded rod 3, the mounting plate 6 connected with the first threaded rod 3 can be driven to move up and down, when the mounting plate 6 moves up and down, the main back cushion 11, two T-shaped sliders 15, two mounting blocks 9 and two side protection pads 10 will be driven to move up and down, the main back cushion 11 is moved to the appropriate height, then through the limiting ring 5, the second threaded rod 4 is limited, the stability of the mounting plate 6 is increased, so that it can adapt to people of different heights, through the sliding of the two mounting blocks 9 in the two rectangular grooves 8, the distance between the two side protection pads 10 can be adjusted, after adjusting the position, rotating the threaded plug rod 13, the threaded plug rod 13 is inserted into the corresponding plug hole 16, through the threaded plug rod 13, the two T-shaped sliders 15 can be limited, and the two sides of the waist of the user with different waist circumferences are assisted and supported.

[0030] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An office chair lumbar support structure comprising a U-shaped frame (1) and a main backrest cushion (11), characterized in that: Both left and right ends of the U-shaped frame (1) are provided with sliding grooves (2), the interiors of the two sliding grooves (2) are slidably connected with a mounting plate (6), the right end above the U-shaped frame (1) penetrates and is threadedly connected with a first threaded rod (3), the lower end of the first threaded rod (3) is rotatably connected with the mounting plate (6), the front end of the mounting plate (6) is provided with two left and right symmetrical rectangular grooves (8), the interiors of the two rectangular grooves (8) are slidably connected with T-shaped sliding blocks (15), the front end faces of the two T-shaped sliding blocks (15) are fixedly connected with mounting blocks (9), the front end faces of the two mounting blocks (9) are mounted with side protection pads (10), the left and right ends of the upper end face of the mounting plate (6) are provided with a plurality of uniformly distributed threaded holes (12) which are respectively communicated with the two rectangular grooves (8), the upper ends of the two T-shaped sliding blocks (15) are provided with insertion holes (16), and the insertion holes (16) and one of the threaded holes (12) are mounted with a threaded insertion rod (13).

2. The lumbar support structure for an office chair according to claim 1, wherein: The front end of the mounting plate (6) is provided with a groove (17), and a plurality of uniformly distributed elastic telescopic rods (7) are fixedly connected between the inner side wall of the groove (17) and the main back cushion (11).

3. The lumbar support structure for an office chair of claim 1, wherein: The upper end of the mounting plate (6) is fixedly connected with a second threaded rod (4), the outer side wall of the second threaded rod (4) is threadedly connected with a limiting ring (5), and the top passes through the through hole in the upper end of the U-shaped frame (1).

4. The lumbar support structure for an office chair of claim 1, wherein: The outer walls of the main back cushion (11) and the two side protection pads (10) are provided with protruding blocks.

5. The lumbar support structure for an office chair of claim 1, wherein: The left and right sides of the rear end of the U-shaped frame (1) are fixedly connected with a binding belt (14).

6. The lumbar support structure for an office chair of claim 1, wherein: The front end face of the U-shaped frame (1) is mounted with a sponge pad.

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