Office chair waist rest capable of automatically fitting back

Abstract

The utility model discloses an office chair waist rest capable of automatically fitting the back, which comprises a connecting seat, a pressure relief rod is arranged below the connecting seat, and an angle adjusting rod is further mounted below the connecting seat; the outer side of the pressure relief rod is connected with an air pressure rod, and the bottom end of the air pressure rod is in threaded connection to the center position of the top end of the base rolling wheel; adjusting back cushions are arranged on the two lower portions of the surface of the reinforcing frame, and the back positions of the adjusting back cushions are connected with the reinforcing frame through elastic linings. And a headrest is arranged at the upper end of the fixed seat. According to the office chair waist rest capable of being automatically attached to the back, the elastic clamping block is arranged, one end of the elastic clamping block is hinged to one side of the reinforcing frame, the other side of the elastic clamping block is fixed to the rear side of the adjusting back cushion, and therefore the waist fatigue of an office chair user can be relieved, the angle of the reinforcing frame can be adjusted through the arranged angle adjusting rod, and the user experience is improved. Therefore, the device can adapt to use at different angles.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical fields of office chair, concretely to office chair waist backrest that can automatically fit back. BACKGROUND

[0002] Office chair refers to various chairs equipped for work convenience in daily work and social activities; office partners divide office chairs into narrow sense and broad sense, the narrow sense office chair refers to the backrest chair sat by people in the sitting posture state when carrying out desktop work, and the broad sense office chair refers to all chairs used in offices, and the types are many.

[0003] The existing office chairs have many types, and the office chair cannot well adapt to the waist position of the human body when the office chair is used, so that the deficiency is caused when using, in order to overcome the above-mentioned defects, the prior art (Chinese patent with application number CN201621289435.3 and publication date April 20, 2018) discloses a kind of office chair, far infrared graphite heating "double kidney" shape backrest office chair, ergonomics design "double kidney" shape backrest, suitable for all kinds of people, production efficiency is high, heating is uniform, and temperature is stable, safety factor is high, refreshing health care, far infrared medical effect is good, it is a kind of very excellent multifunctional office furniture, the novel far infrared graphite heating "double kidney" shape backrest office chair provided by the utility model has very good market prospect.

[0004] Although the above-mentioned office chair adapts to the waist position of the human body through ergonomics, but in the actual use process, the waist position will still have a certain suspension when people with different height positions and different body shapes use, which leads to the problem that the waist is uncomfortable after long time sitting.

[0005] Therefore, we propose the office chair waist backrest that can automatically fit back to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an office chair waist backrest that can automatically fit back to solve the problem that the waist position will still have a certain suspension when people with different height positions and different body shapes use the office chair on the market at present, which leads to the problem that the waist is uncomfortable after long time sitting.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: An office chair waist rest capable of automatically adhering to the back, comprising a connecting seat, a pressure relief rod is arranged at the lower position of the connecting seat, an angle adjusting rod is also arranged at the lower position of the connecting seat; the outer side of the pressure relief rod is connected with the air pressure stick, the bottom end of the air pressure stick is threadedly connected with the top center position of the base roller, the top of the air pressure stick is inserted into the inner side position of the connecting seat; a cushion is also fixedly attached to the top position of the connecting seat, hand supports are fixedly arranged at the top two end positions of the cushion through bolts, an adjusting mechanism is arranged in the hand support, and the adjusting mechanism can realize height adjustment of the hand support; a reinforcing frame is also rotatably connected to the back position of the connecting seat, the reinforcing frame is rotatable through the angle adjusting rod to realize angle rotation at the top rear side of the connecting seat; two groups of back adjusting pads are arranged below the surface of the reinforcing frame, the back position of the back adjusting pad is connected with the reinforcing frame through an elastic lining; a fixed back pad is fixed to the middle surface of the back adjusting pad, a fixed seat is fixed to the upper position of the reinforcing frame, and a head pad is arranged at the upper end of the fixed seat.

[0008] As the preferred technical scheme of the present application, the adjusting mechanism comprises a plurality of clamping holes arranged on the surface of the hand support, a plurality of elastic clamping blocks are clamped in the clamping holes, and one side of the elastic clamping block is fixed to the surface of the hand support.

[0009] As the preferred technical scheme of the present application, the elastic clamping block forms a clamping structure with the hand support through the clamping hole, and the adjusting mechanism is provided with two groups about the vertical center line of the connecting seat.

[0010] As the preferred technical scheme of the present application, the elastic lining comprises a spring and a lining, the rear end of the lining is hingedly arranged on the outer side of the reinforcing frame, one end of the spring is fixed to the inner side of the lining, and the other end of the spring is connected with the back center position of the back adjusting pad through a rod.

[0011] As the preferred technical scheme of the present application, the head pad is fixed with a group of adjusting frames arranged downward at the lower end position, wave-shaped clamping grooves are arranged at the inner side of the two end positions of the adjusting frame, elastic buckles are attached to the inner side position of the wave-shaped clamping groove, and the outer side of the elastic buckle is fixed to the inner side of the fixed seat.

[0012] As the preferred technical scheme of the present application, the moving range of the head pad is smaller than the length of the head pad, the head pad and the upper end position of the reinforcing frame are fixed through bolts, and the inner side position of the wave-shaped clamping groove and the outer side position of the elastic buckle are attached.

[0013] Compared with the prior art, the office chair waist support capable of automatically adhering to the back has the following beneficial effects: the elastic clamping block is hingedly arranged at one end of the reinforcing frame and fixed at the other end of the elastic clamping block at the back side of the adjusting back pad, so that the fatigue of the waist of the user of the office chair can be relieved, the angle adjusting rod is arranged, the angle of the reinforcing frame can be adjusted, and different angles can be adapted, and specific contents are shown as follows:

[0014] 1. The elastic lining is arranged, the rear end of the lining is hingedly arranged at the outer side of the reinforcing frame, one end of the spring is fixed at the inner side of the lining, the other end of the spring is connected with the back center position of the adjusting back pad through the rod, so that the adjusting back pad can adapt to different users, and the fatigue of the waist of the user of the office chair can be relieved; further, the angle adjusting rod is arranged, the reinforcing frame rotatably arranged at the back side of the connecting seat can be rotated through the angle adjusting rod, so that the needs of different users can be adapted.

[0015] 2. The hand supporting frame is arranged, the elastic clamping block arranged at one side of the hand supporting frame can be adjusted in position in the clamping hole, so that the needs of users can be combined, the height of the hand supporting frame can be adjusted, the height of the head pad can be adjusted by pulling the head pad, the wave-shaped clamping groove moves in position outside the elastic clamping buckle, and the needs of different users can be further adapted. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0018] Figure 3 It is a Figure 1 It is an enlarged structural schematic diagram of A in the utility model;

[0019] Figure 4 It is a gas pressure rod and base roller connecting structural schematic diagram of the utility model;

[0020] Figure 5 It is a hand supporting frame side view structural schematic diagram of the utility model;

[0021] Figure 6 It is a reinforcing frame side view structural schematic diagram of the utility model;

[0022] Figure 7 It is a fixed seat sectional structural schematic diagram of the utility model.

[0023] In the figure: 1, connecting seat; 2, pressure relief rod; 3, angle adjusting rod; 4, air pressure stick; 5, base roller; 6, seat cushion; 7, hand support frame; 8, clamping hole; 9, elastic clamping block; 10, hand support frame; 11, reinforcing frame; 12, adjusting back pad; 13, elastic lining; 14, fixed quilt; 15, head pad; 16, fixing seat; 17, elastic buckle; 18, wave clamping groove; 19, adjusting frame. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-7 The utility model provides the following technical schemes: Embodiment one

[0026] In order to solve the problem that the waist position is still suspended to a certain extent when the office chair on the market faces different height positions and different body types of people in use, leading to uncomfortable waist after long time sitting, please refer to the accompanying Figure 1 , accompanying Figure 2 and accompanying Figure 6 The back position of connecting seat 1 is further rotationally connected with reinforcing frame 11, and the rotating part of reinforcing frame 11 is rotationally connected with angle adjusting rod 3 to realize angle rotation at the top rear side of connecting seat 1. Two groups of adjusting back pads 12 are arranged below the surface of reinforcing frame 11, and the back position of adjusting back pad 12 is connected with reinforcing frame 11 through elastic lining 13. The inside of elastic lining 13 comprises spring and lining, the rear end position of lining is hingedly arranged outside reinforcing frame 11, one end of spring is fixed inside lining, and the other end of spring is connected with the back center position of adjusting back pad 12 through a rod.

[0027] When using the office chair, the user sits on the top position of seat cushion 6, and at this time, the waist position of the user is outside adjusting back pad 12. When the user has a large body type, adjusting back pad 12 will move in position through the arrangement of elastic lining 13, and the rod arranged on one side of elastic lining 13 is rotationally arranged in reinforcing frame 11, so as to facilitate angle rotation, so as to adapt to different user needs. Through the arrangement of adjusting back pad 12 and fixed quilt 14, the user's waist can be fitted, and through the arrangement of angle adjusting rod 3, the angle of reinforcing frame 11 can be rotated by rotating angle adjusting rod 3, so as to adapt to the needs of the user, and relieve the fatigue of the waist of the user of the office chair; Example two

[0028] To adapt to different user needs, please refer to the attached Figure 1 -attached Figure 5 and attached Figure 7 , including the connecting seat 1, the lower position of the connecting seat 1 is provided with the pressure relief rod 2, the lower position of the connecting seat 1 is also installed with the angle adjusting rod 3; the outer side of the pressure relief rod 2 is connected with the air pressure rod 4, the bottom end of the air pressure rod 4 is threadedly connected at the top center position of the base roller 5, the top of the air pressure rod 4 is inserted in the inner side position of the connecting seat 1; the top position of the connecting seat 1 is also fixedly attached with the cushion 6, the top two end positions of the cushion 6 are fixedly provided with the hand support frame 7 through bolts, the inside of the hand support frame 7 is provided with the adjusting mechanism, the adjusting mechanism can realize the height adjustment of the hand support frame 10; the middle surface of the adjusting back pad 12 is fixedly provided with the fixed back pad 14, the upper position of the reinforcing frame 11 is fixedly provided with the fixed seat 16, the upper end of the fixed seat 16 is provided with the head pad 15; the adjusting structure includes a plurality of sets of clamping holes 8 opened on the surface position of the hand support frame 7, a set of elastic clamping blocks 9 is clamped in the inside of the clamping hole 8, one side of the elastic clamping block 9 is fixed on the surface position of the hand support frame 10; the elastic clamping block 9 constitutes a clamping structure through the clamping hole 8 and the hand support frame 7, and the adjusting mechanism is provided with two groups about the vertical center line of the connecting seat 1; the lower end position of the head pad 15 is fixedly provided with a set of adjusting frames 19 arranged downward, the inside two end positions of the adjusting frame 19 are provided with the wave-shaped clamping groove 18, the inside position of the wave-shaped clamping groove 18 is attached with the elastic clamping buckle 17, the outside of the elastic clamping buckle 17 is fixed in the inside of the fixed seat 16; the moving range of the head pad 15 is less than the length of the head pad 15, and the head pad 15 and the upper end position of the reinforcing frame 11 are fixed through bolts, the inside position of the wave-shaped clamping groove 18 and the outside position of the elastic clamping buckle 17 are attached.

[0029] By extruding one side of the elastic clamping block 9, the elastic clamping block 9 can be separated from the inside of the clamping hole 8, at this time the hand support frame 10 can be pulled, so that the hand support frame 10 can slide in the inside of the hand support frame 7, and then the height of the two sets of hand support frames 10 can be adjusted, when the height of the head pad 15 needs to be adjusted, the head pad 15 is directly pulled, at this time the head pad 15 drives the wave-shaped clamping groove 18 to move in height through the adjusting frame 19, and the wave-shaped clamping groove 18 slides in the elastic clamping buckle 17 inside the fixed seat 16, at this time the groove inside the wave-shaped clamping groove 18 is attached to the protruding position of the elastic clamping buckle 17, so that the height of the head pad 15 can be adjusted, and then different users can be adapted, when the height of the connecting seat 1 is adapted, when the user sits on the top of the cushion 6, when the pressure relief rod 2 is actuated, the air pressure rod 4 will descend, when the user does not sit on the top of the cushion 6, the pressure relief rod 2 is actuated, the height of the cushion 6 will reset, so that the needs of the user can be adapted.

[0030] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0031] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lumbar support for an office chair that can automatically conform to the back, comprising a connecting seat (1), a pressure relief rod (2) provided at the lower position of the connecting seat (1), and an angle adjustment rod (3) also installed at the lower position of the connecting seat (1). Its features are: The outer side of the pressure relief rod (2) is connected to the air pressure rod (4), the bottom end of the air pressure rod (4) is threaded to the center of the top of the base roller (5), and the top of the air pressure rod (4) is inserted into the inner side of the connecting seat (1). A seat cushion (6) is also fixedly attached to the top of the connecting seat (1). A hand support frame (7) is fixed to both ends of the top of the seat cushion (6) by bolts. An adjustment mechanism is provided inside the hand support frame (7). The adjustment mechanism can adjust the height of the hand support frame (10). The back of the connecting seat (1) is also rotatably connected to a reinforcing frame (11), and the rotation of the reinforcing frame (11) is achieved by the angle adjustment rod (3) at the top rear side of the connecting seat (1). Two sets of adjustable back pads (12) are provided on the lower surface of the reinforcing frame (11), and the back of the adjustable back pads (12) is connected to the reinforcing frame (11) through an elastic inner liner (13). The middle surface of the adjustable back pad (12) is fixed with a fixing pad (14), and a fixing seat (16) is fixed above the reinforcing frame (11). A head pad (15) is provided at the upper end of the fixing seat (16).

2. The lumbar support for an office chair that can automatically conform to the back as described in claim 1, characterized in that: The adjustment mechanism includes several sets of engaging holes (8) on the surface of the hand support (7), and a set of elastic blocks (9) are engaged inside the engaging holes (8), with one side of the elastic blocks (9) fixed to the surface of the hand support (10).

3. The lumbar support for an office chair that can automatically conform to the back as described in claim 2, characterized in that: The elastic block (9) forms an engagement structure with the hand support (7) through the engagement hole (8), and the adjustment mechanism is provided with two sets about the vertical center line of the connecting seat (1).

4. The lumbar support of an office chair that can automatically conform to the back as described in claim 1, characterized in that: The elastic liner (13) includes a spring and a liner inside. The rear end of the liner is hinged to the outside of the reinforcing frame (11). One end of the spring is fixed to the inside of the liner, and the other end of the spring is connected to the center of the back of the adjusting back pad (12) via a rod.

5. The lumbar support for an office chair that can automatically conform to the back as described in claim 1, characterized in that: A set of downward-facing adjustment brackets (19) is fixed at the lower end of the head pad (15), and wave grooves (18) are provided at both ends of the inner side of the adjustment brackets (19). An elastic buckle (17) is fitted to the inner side of the wave groove (18), and the outer side of the elastic buckle (17) is fixed to the inner side of the fixing seat (16).

6. A lumbar support for an office chair that automatically conforms to the back, as described in claim 5, characterized in that: The movement range of the head pad (15) is less than the length of the head pad (15), and the head pad (15) is fixed to the upper position of the reinforcing frame (11) by bolts. The inner position of the wave groove (18) is fitted to the outer position of the elastic buckle (17).

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