Adjustable T-shaped supporting structure of ergonomic office chair

Abstract

The utility model relates to the technical field of ergonomic chairs, and discloses an adjustable ergonomic office chair T-shaped supporting structure which comprises a fixed box, the rear side of the fixed box is fixedly connected with a backrest, the bottom of the front side of the backrest is fixedly connected with an expansion bag, the inner wall of the expansion bag is detachably connected with an air bag, and the inner wall of the air bag is fixedly connected with a T-shaped support. The left side of the air bag is fixedly connected with a deflation pipe, the right side of the air bag is fixedly connected with an air inlet pipe, the bottom of the air inlet pipe is fixedly connected with a first one-way valve, the inner wall of the first one-way valve is rotationally connected with a one-way plate, and the bottom of the one-way plate is fixedly connected with a first spring. According to the utility model, through the inflation and deflation operation of the air bag, the waist supporting strength can be changed, the waist curves of different users can be effectively fitted, the waist pressure can be reduced, the user can flexibly adjust according to the own comfort level, the good state of the waist can be maintained during long-time office work, and the probability of waist discomfort caused by long-time sitting can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of human engineering chair, especially to a adjustable human engineering office chair T type support structure. BACKGROUND

[0002] The human engineering office chair is an office chair designed according to the physiological structure and action habit of human body, which can effectively fit the spine, waist, hip and other parts of human body and provide comfortable support. The chair has multiple adjustable functions, which can be personalized set according to the body size and working posture requirements of the user. The purpose of the human engineering office chair is to help the user maintain correct sitting posture during long time office work, reduce body pressure, improve work comfort, and reduce fatigue and body injury caused by long time sitting.

[0003] Chinese patent CN212972327U discloses a new type of human engineering office chair, which belongs to the technical field of office chairs. The new type of human engineering office chair comprises a seat plate, a support rod and a regulating valve. The upper surface of the seat plate is fixedly connected with a first clamping groove. One side of the outer surface of the seat plate is fixedly connected with a rotating shaft sleeve. The two ends of the rotating shaft sleeve are fixedly connected with a lying plate. The new type of human engineering office chair is provided with a rotating shaft sleeve, a support rod, a rotating rod, a regulating valve, an extension rod, a clamping tooth, a clamping groove and a hydraulic rod. When the office chair is used, the regulating valve is pulled to move the clamping tooth out of the tooth groove. The rotating rod is rotated to drive the support rod. The angle of the lying plate is adjusted by rotating the rotating sleeve. The appropriate angle is selected to release the regulating valve. Under the action of the spring force, the clamping tooth can be clamped in the tooth groove to fix the position of the lying plate. The use angle of the office chair can be quickly and timely adjusted to maintain the support of the waist.

[0004] However, the height and depth adjustment of the waist support is not suitable, which makes it difficult to accurately correspond to the physiological curve of the human waist. If the waist support is too high or too low, the waist will not be properly supported, which will lead to dispersion of support force or difficulty in effectively supporting the lumbar vertebrae, thereby increasing the risk of lumbar muscle strain and lumbar injury, seriously affecting the comfort experience and health status during office work. Therefore, a adjustable human engineering office chair T type support structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies of the prior art, and provides a adjustable human engineering office chair T type support structure to improve the problem of increasing the risk of lumbar muscle strain and lumbar injury in the prior art

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The adjustable ergonomic office chair T-shaped support structure, including fixed box, the rear side of the fixed box is fixedly connected with backrest, the front side bottom of the backrest is fixedly connected with expansion bag, the inner wall of the expansion bag is detachably connected with air bag, the left side of the air bag is fixedly connected with air pipe, the right side of the air bag is fixedly connected with air inlet pipe, the bottom of the air inlet pipe is fixedly connected with one-way valve one, the inner wall of the one-way valve one is rotatably connected with one-way plate, the bottom of the one-way plate is fixedly connected with spring one, the inner wall of the one-way valve one is fixedly connected with limit block, the bottom of the one-way valve one is fixedly connected with pressing bag, the bottom of the pressing bag is fixedly connected with one-way valve two, the left and right sides of the fixed box are fixedly connected with the adjusting assembly of the pair of supporting handles,

[0008] As a further description of the above technical scheme:

[0009] The adjusting assembly includes a fixed block, a sliding groove is formed in the interior of the fixed block, an adjusting block is slidably connected to the inner wall of the sliding groove, a plurality of adjusting grooves are formed in the interior of the adjusting block, and an adjusting knob is threadedly connected to the inner wall of the fixed block.

[0010] As a further description of the above technical scheme:

[0011] The right side of the fixed box is fixedly connected with a placement ring, and the inner wall of the placement ring is in contact with the outside of the pressing bag.

[0012] As a further description of the above technical scheme:

[0013] The top of the fixed box is fixedly connected with a seat, and the bottom of the fixed box is rotatably connected with a fixed column.

[0014] As a further description of the above technical scheme:

[0015] The bottom of the fixed column is fixedly connected with a support leg, and the bottom of the support leg is fixedly connected with a plurality of pulleys.

[0016] As a further description of the above technical scheme:

[0017] The outside of the adjusting knob is threadedly connected to the inside of one of the adjusting grooves, and the outside of the adjusting block is slidably connected to the inside of the fixed block.

[0018] As a further description of the above technical scheme:

[0019] The proximal sides of the two fixed blocks are fixedly connected to the left and right sides of the fixed box, and the top of the adjusting block is rotatably connected with an armrest.

[0020] As a further description of the above technical scheme:

[0021] The bottom of the handrail is fixedly connected with a spring two, and the bottom of the spring two is fixedly connected to the rear side of the adjusting block.

[0022] The utility model discloses beneficial effect lies in:

[0023] (1) the utility model discloses a manual pressing to the pressing capsule, and the internal gas can only enter the pressing capsule unidirectionally under the action of check valve two, and then the gas pressure overcomes the tension of spring one and pushes the check plate to rotate upward and open, enters the gasbag through check valve one, and the inflation of the gasbag makes the expansion bag evenly extend, better fits the waist curve, when needing to reduce the supporting force to the waist, the control valve on the deflation pipe is opened, and the gas in the gasbag is slowly released, thereby realizing that the inflation and deflation operation of the gasbag can change the waist supporting degree, effectively fit the waist curve of different users, reduce the waist pressure, help users to flexibly adjust according to the comfort requirement of self, can maintain the good state of the waist when working for a long time, and reduce the probability of causing waist discomfort due to long sitting.

[0024] (2) the utility model discloses the rod of the rotating adjusting knob is separated from the current adjusting groove, drives the adjusting block to slide in the sliding groove, and then the adjusting knob is rotated and locked in the corresponding adjusting groove, the handrail can rotate the top of the adjusting block, under the action of spring two, the handrail can rotate naturally according to the arm action and reset when the arm leaves, thereby realizing that the arm length and working posture of different users can be adapted, effectively relieving the fatigue feeling of the arm and the shoulder, improving the comfort degree of the arm placement when working, and also can provide stable and suitable support for the arm in different use scenes (such as typing, reading, resting etc.), improving the overall office experience.

[0025] In conclusion, the utility model has the advantages of effectively fitting the waist curve of different users, reducing the waist pressure and relieving the fatigue feeling of the arm and the shoulder. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the whole structure schematic diagram of the utility model;

[0027] Figure 2 It is the adjusting block schematic diagram of the utility model;

[0028] Figure 3 It is the limiting block schematic diagram of the utility model;

[0029] Figure 4 It is Figure 2 It is the enlarged view of A in the middle;

[0030] Figure 5 It is the backrest schematic diagram of the utility model. DETAILED DESCRIPTION

[0031] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0033] Embodiment one

[0034] Referring to Figures 1 to 3 The present application provides an embodiment: an adjustable ergonomic office chair T-shaped support structure, comprising a fixed box 1, the fixed box 1 as an important basic component of the whole T-shaped support structure, the rear side of the fixed box 1 is fixedly connected with a backrest 2, the backrest 2 can provide uniform and conformal support for the whole back of the user, the front side bottom of the backrest 2 is fixedly connected with an expansion bag 3, the expansion bag 3 is a key facility to increase the comfort and adaptability of the backrest 2, so that it can uniformly expand to all directions when the air bag 4 is inflated and expanded, thereby better conforming to the waist curve of the user, the inner wall of the expansion bag 3 is detachably connected with an air bag 4, the air bag 4 is one of the core components of the adjustable;

[0035] The left side of the air bag 4 is fixedly connected with a deflation pipe 5, when the user feels that the waist support is too strong and needs to reduce the pressure of the air bag 4, the deflation pipe 5 channel can be opened by controlling the valve, so that the gas in the air bag 4 is slowly released, thereby adjusting the supporting force of the waist, the right side of the air bag 4 is fixedly connected with an air inlet pipe 6, the air inlet pipe 6 is responsible for inflating the air bag 4, the bottom of the air inlet pipe 6 is fixedly connected with a one-way valve one 7, the one-way valve one 7 ensures that the gas can only flow into the air bag 4 in one direction, the inner wall of the one-way valve one 7 is rotatably connected with a one-way plate 8, the one-way plate 8 is tightly attached to the valve port to prevent backflow of gas;

[0036] The bottom of the one-way plate 8 is fixedly connected with a spring 9, the inner wall of the one-way valve 7 is fixedly connected with a limiting block 10, when the bottom pressing bag 11 is extruded, the gas pressure overcomes the tension of the spring 9, pushes the one-way plate 8 to rotate upward to open, the gas smoothly enters the air bag 4 through the one-way valve 7, the limiting block 10 limits the one-way plate 8 to rotate only in one direction, prevents it from leaving the normal working position, the bottom of the one-way valve 7 is fixedly connected with the pressing bag 11, the design of the pressing bag 11 facilitates the user to manually inflate the air bag 4, the bottom of the pressing bag 11 is fixedly connected with a one-way valve 12, the one-way valve 12 is also a one-way air inlet structure, which ensures that the gas can only enter the air inlet pipe 6 and cannot flow out each time the pressing bag 11 is pressed, the left and right sides of the fixed box 1 are fixedly connected with an adjusting assembly for adjusting the handle.

[0037] Example two

[0038] Referring to Figure 2 , Figure 4 and Figure 5 , the adjusting assembly comprises a fixed block 13, the fixed block 13 serves as a basic support structure of the adjusting assembly, a sliding groove 14 is formed in the interior of the fixed block 13, the sliding groove 14 ensures that the adjusting block 15 can slide smoothly therein, the inner wall of the sliding groove 14 is slidably connected with the adjusting block 15, the adjusting block 15 is an adjusting handle 22, a plurality of adjusting grooves 16 are formed in the interior of the adjusting block 15, the adjusting grooves 16 are components for realizing multi-gear adjustment of the handle height, which ensure that the adjusting knob 17 can be reliably embedded therein to realize locking, and also will not affect the convenience of adjustment due to being too deep, the inner wall of the fixed block 13 is threadedly connected with the adjusting knob 17, by rotating the adjusting knob 17, the rod part is separated from the current adjusting groove 16, the user can slide the adjusting block 15 to the required height position along the sliding groove 14, and then rotate the adjusting knob 17 into the corresponding adjusting groove 16, to realize quick and accurate adjustment of the handle height, and meet the individualized needs of different users for the handle height.

[0039] Example three

[0040] Referring to Figure 1 , Figure 2 and Figure 4The right side of the fixed box 1 is fixedly connected with a placing ring 18, the inner wall of the placing ring 18 is in contact with the outside of the pressing bag 11, the placing ring 18 can play a good fixing role on the pressing bag 11, and the pressing bag 11 is prevented from being placed when not in use, the top of the fixed box 1 is fixedly connected with a seat 19, the seat 19 is an important part directly contacted by the user, the bottom of the fixed box 1 is rotatably connected with a fixed column 20, the fixed column 20 is a key part for connecting the fixed box 1 and the supporting leg 21, the bottom of the fixed column 20 is fixedly connected with the supporting leg 21, the supporting leg 21 provides a stable support basis, and the bottom of the supporting leg 21 is fixedly connected with a plurality of pulleys, the pulleys facilitate the user to easily move positions in an office area, and the outside of the adjusting knob 17 is threadedly connected in the inside of one of the adjusting grooves 16, the rod part is separated from the current adjusting groove 16 by rotating the adjusting knob 17.

[0041] The outside of the adjusting block 15 is slidably connected in the inside of the fixed block 13, the height of the handrail 22 is adjusted by sliding, the proximal sides of the two fixed blocks 13 are fixedly connected on the left side and the right side of the fixed box 1, and the fixed blocks 13 are provided with fixed support, the top of the adjusting block 15 is rotatably connected with a handrail 22, the handrail 22 is an important part for providing support for the arm of the user, the bottom of the handrail 22 is fixedly connected with a spring two 23, the bottom of the spring two 23 is fixedly connected to the rear side of the adjusting block 15, when the handrail 22 is subjected to an upward or downward external force, the spring two 23 is correspondingly compressed or stretched, elastic potential energy is generated, and a certain elastic support force and reset ability are provided for the handrail 22, when the arm of the user is lifted away from the handrail 22, the spring two 23 automatically restores the handrail 22 to the initial set angle position, and the handrail 22 is ensured to be in the best use state at all times, thereby providing continuous and stable arm support services for the user.

[0042] Working steps

[0043] Step one, when the user sits on the seat 19 and needs to adjust the waist support of the backrest 2, the pressing bag 11 can be taken down, the pressing bag 11 is manually pressed, after the pressing bag 11 is pressed, the internal gas can only enter the pressing bag 11 in one direction under the action of the one-way valve two 12, then the gas pressure pushes the one-way plate 8 to rotate upward to open under the action of the pulling force of the spring one 9, enters the air bag 4 through the one-way valve one 7, the air bag 4 is inflated and expanded to make the expansion bag 3 uniformly extend, better fit the waist curve, and provide more powerful support, when the support on the waist needs to be reduced, the control valve on the air pipe 5 is opened to open the channel, the gas in the air bag 4 is slowly released, and the waist support is weakened.

[0044] Step two, when the armrest needs to be adjusted, rotate the adjusting knob 17 to make its rod part out of the current adjusting slot 16, drive the adjusting block 15 to slide in the sliding slot 14, adjust the armrest to the appropriate height, then rotate the adjusting knob 17 into the corresponding adjusting slot 16 to lock, the handrail 22 can rotate the top of the adjusting block 15, under the action of the second spring 23, the handrail 22 can rotate naturally according to the arm action and reset when the arm leaves, so that the comfortable support and convenient adjustment effect are achieved through the cooperation of various parts, meet the different needs of the user, improve the ergonomics performance and use experience of the office chair.

[0045] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable ergonomic office chair T-shaped support structure comprising a fixed box (1), characterized in that: The rear side of the fixed box (1) is fixedly connected with a backrest (2), the front side bottom of the backrest (2) is fixedly connected with an expansion bag (3), the inner wall of the expansion bag (3) is detachably connected with an air bag (4), the left side of the air bag (4) is fixedly connected with a deflation pipe (5), the right side of the air bag (4) is fixedly connected with an air inlet pipe (6), the bottom of the air inlet pipe (6) is fixedly connected with a one-way valve (7), the inner wall of the one-way valve (7) is rotatably connected with a one-way plate (8), the bottom of the one-way plate (8) is fixedly connected with a spring (9), the inner wall of the one-way valve (7) is fixedly connected with a limiting block (10), the bottom of the one-way valve (7) is fixedly connected with a pressing bag (11), the bottom of the pressing bag (11) is fixedly connected with a one-way valve (12), the left and right sides of the fixed box (1) are fixedly connected with an adjusting assembly for adjusting the supporting handle.

2. The adjustable ergonomic office chair T-shaped support structure according to claim 1, wherein: The adjusting assembly comprises a fixed block (13), a sliding groove (14) is formed in the inner portion of the fixed block (13), an adjusting block (15) is slidably connected with the inner wall of the sliding groove (14), a plurality of adjusting grooves (16) are formed in the inner portion of the adjusting block (15), and an adjusting knob (17) is threadedly connected with the inner wall of the fixed block (13).

3. The T-shaped support structure of an adjustable ergonomic office chair according to claim 1, wherein: The right side of the fixed box (1) is fixedly connected with a placing ring (18), the inner wall of the placing ring (18) is in contact with the outer portion of the pressing bag (11).

4. The T-shaped support structure of an adjustable ergonomic office chair according to claim 1, wherein: The top of the fixed box (1) is fixedly connected with a seat (19), and the bottom of the fixed box (1) is rotatably connected with a fixed column (20).

5. An adjustable ergonomic office chair T-shaped support structure according to claim 4, characterized in that: The bottom of the fixed column (20) is fixedly connected with a supporting leg (21), and the bottom of the supporting leg (21) is fixedly connected with a plurality of pulleys.

6. The T-shaped support structure of an adjustable ergonomic office chair according to claim 2, wherein: The outer portion of the adjusting knob (17) is threadedly connected in the inner portion of one of the adjusting grooves (16), and the outer portion of the adjusting block (15) is slidably connected in the inner portion of the fixed block (13).

7. The T-shaped support structure of an adjustable ergonomic office chair according to claim 2, wherein: The proximal sides of the two fixed blocks (13) are fixedly connected with the left and right sides of the fixed box (1), and the top of the adjusting block (15) is rotatably connected with a handrail (22).

8. An adjustable ergonomic office chair T-shaped support structure according to claim 7, characterized in that: The bottom of the handrail (22) is fixedly connected with a spring (23), and the bottom of the spring (23) is fixedly connected with the rear side of the adjusting block (15).

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