CN219515760U - Armrest multipoint type adjusting office chair - Google Patents

Abstract

The utility model discloses an armrest multi-point type adjusting office chair, which relates to the technical field of office chair design and comprises a seat plate, a backrest, armrest units, a storage unit and a turnover connecting unit, wherein the lower side surface of the seat plate is fixedly connected with a circular fixing block, the lower side of the circular fixing block is fixedly connected with a telescopic column, a circle of support rods are annularly arranged on the lower side of the telescopic column, the support rods are sleeved with stabilizing rings, the lower end of each support rod is provided with a motion assembly backrest which is arranged on the rear side of the seat plate, the upper end surface of the backrest is fixedly connected with the bottom armrest units of two connecting columns, each armrest unit comprises an L-shaped rod, a second chute, a limiting column and a limiting hole, the left side and the right side of the seat plate are respectively and movably connected with the bottom ends of the L-shaped rods in the vertical direction through pin shafts, the upper surfaces of the two L-shaped rods are respectively provided with a first chute, articles can be placed, the seats can be finely adjusted, and the height can be finely adjusted when moving.

Description

Armrest multipoint type adjusting office chair

Technical Field

The utility model relates to the technical field of office chair design, in particular to an armrest multi-point type adjusting office chair.

Background

Office chairs are indispensable articles in daily office and study of people, and the office chairs which are commonly used at present are quite various in types and styles, but the use requirements of the office chairs are different due to the differences of the body and the body types of people, but the armrests of most office chairs at present cannot be adjusted, so that the use requirements of different people are hardly met

The existing armrest multi-point type adjusting office chair has the defects that articles cannot be placed, most of the office chairs cannot be finely adjusted, the office chairs are not convenient to put in moving, and the height cannot be finely adjusted.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the armrest multi-point type adjusting office chair which can be used for placing articles, fine-adjusting the chair, and fine-adjusting the height during moving, so that the problems in the background technology can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an armrest multi-point type adjusting office chair comprises a seat board, a backrest, an armrest unit, a storage unit and a turnover connecting unit;

a seat plate: the lower side surface is fixedly connected with a circular fixing block, the lower side of the circular fixing block is fixedly connected with a telescopic column, a circle of support rods are annularly arranged on the lower side of the telescopic column, the support rods are sleeved with a stabilizing ring, and the lower end of each support rod is provided with a moving assembly;

a backrest: the backrest is arranged at the rear side of the seat board, and the upper end surface of the backrest is fixedly connected with the bottom ends of the two connecting columns;

armrest unit: the telescopic lifting device comprises an L-shaped rod, an extension rod, a first telescopic rod, a first pin roll, a first sliding groove, a rotating column, a second sliding groove, a limiting column and a limiting hole, wherein the left side and the right side of a seat plate are respectively and movably connected with the bottom end of the L-shaped rod in the vertical direction through the first pin roll, the first sliding grooves are respectively formed in the upper surfaces of the two L-shaped rods in the horizontal direction, the sliding seats are respectively and slidably connected with the inner parts of the first sliding grooves, the rotating column is rotationally connected onto the sliding seats, the second sliding grooves are respectively formed in the lower end surfaces of the two extension rods, the top parts of the rotating column are fixed in the second sliding grooves, the front sides of the two sides of the seat plate, which are positioned in the vertical directions of the two L-shaped rods, are respectively and movably connected with the bottom ends of the first telescopic rods in the vertical direction, the limiting holes of a linear array are formed in the front ends of the two telescopic rods, and the top ends of the first telescopic rods are movably connected with the bottom parts of the horizontal ends of the extension rods;

and a storage unit: is arranged at the rear side of the backrest;

folding connection unit: for connecting the backrest and the seat plate.

The seat board is used for letting the user seat, the seat board still is used for fixing the rectangle fixed block, the circular fixed block is used for supporting the seat board, the telescopic column is used for adjusting the seat height, the bracing piece is used for supporting the seat, the stabilizing ring supports the bracing piece, increase seat stability, the motion subassembly is used for driving the seat and removes, the back is used for supporting user's back, the back still is used for fixed storage unit, the spliced pole is used with the connection headrest, L type pole is used for supporting the arm, the extension rod is adjusted the seat handrail through the telescopic link, a round pin axle is used for driving L type pole activity, rotate certain angle, carry out the fine setting to the handrail, a spout is used for prescribing a limit to the range of movement of pivoted column, place the pivoted column skew, spout second is used for fixed pivoted column, the spacing hole is used for spacing to L type pole pivoted angle, spacing post is used for fixing telescopic link first, prevent telescopic link highly changing, thereby carry out the fine setting to the handrail, increase the travelling comfort, storage unit is used for storing articles, the spliced link is used for back and letting to turn over the angle fine setting.

Further, turn over a connecting unit and include fixed block one, connecting rod one, knob, threaded rod, connecting rod two, nut and fixed block two, the downside fixed surface of bedplate is connected with fixed block two, the front end of two connecting rods of rear side fixed connection of fixed block two, U type opening has been seted up to the rear end of two connecting rods two, the rear side fixed surface of back is connected with fixed block one, the through-hole has been seted up at fixed block one middle part, the downside fixed surface of fixed block one is connected with the top of two connecting rods one, and the U type opening of connecting rod two rear ends is passed respectively to the bottom of two connecting rods one, and the fixed orifices on two connecting rods one are connected with threaded rod fixed respectively, and the slide hole on two connecting rods two rotates with the threaded rod respectively and is connected, and the outside port of two threaded rods is fixedly connected with the knob respectively, the inboard port of two threaded rods is threaded connection nut respectively.

The fixed block is used for supporting the backrest, the connecting rod is used for connecting the threaded rod, the knob is used for driving the threaded rod to rotate, the threaded rod rotates to drive the connecting rod one to rotate, the connecting rod one drives the fixed block one to rotate, the fixed block one drives the backrest to fine tune the angle of backrest, reach comfortable state, the connecting rod two is used for fixed threaded rod, prevent that the threaded rod from dropping, the connecting rod two can also prescribe a limit to threaded rod rotation, prevent that the threaded rod from rocking, the fixed block two is used for supporting the bedplate, the nut is used for fixing the chair after the threaded rod fine setting, prevent that the threaded rod from continuously rotating.

Further, the storage unit comprises a hook, a bearing, a storage box, sliding strips, rectangular holes, a door catch, a telescopic door plate and a fixing plate, wherein the bearings are respectively sleeved on the two connecting columns, the outer surfaces of the two bearings are respectively fixedly connected with the hook, the rectangular holes are formed in the rear side surface of the backrest, the first sliding grooves are respectively formed in the left side and the right side of the rectangular holes, the sliding strips are respectively connected with the first sliding grooves in a sliding mode, the inner sides of the two sliding strips are fixedly connected with the storage box, the rear end of the storage box is movably connected with the telescopic door plate through a rotating shaft, the fixing plate is fixedly connected with the rear end of the telescopic door plate through the rotating shaft, the rear side of the backrest is fixedly connected with the door catch above the fixing plate, and the fixing plate corresponds to the through hole in the first fixing block.

The couple is used for hanging article, and the bearing is used for rotating the couple, can let the couple place between the spliced pole when not using, stores the box and is used for storing article, and the slider is used for driving the box and slides, and the rectangular hole is used for placing the box, and door holder and flexible door plant cooperation are used for fixed storage box, and the fixed plate is used for fixed flexible door plant, when needs are fixed, rotates the fixed plate, lets flexible door plant insert in the through-hole on door holder and fixed block one, fixes the storage box.

Further, the motion assembly comprises a rotating disc, a support, a second pin shaft and wheels, the bottom end of each supporting rod is respectively connected with the rotating disc in a rotating mode through a rotating shaft, the lower surface of each rotating disc is respectively fixedly connected with the support, and each support is respectively connected with the wheels in a rotating mode through the second pin shaft.

The rotating disc is used for driving the wheels to rotate, the bracket is used for supporting the wheels, the pin shaft II is used for driving the wheels to rotate, and the wheels are used for driving the chair to move.

Further, the multifunctional pedal comprises a second telescopic rod, a pedal and a rectangular fixing block, wherein the lower surface of the seat plate is fixedly connected with the rectangular fixing block, two sides of the rectangular fixing block are fixedly connected with the second telescopic rod through a first rotating shaft respectively, and the inner sides of the second telescopic rods are fixedly connected with the left side and the right side of the pedal.

The rectangular fixing block is used for supporting the foot pedal, the foot pedal is used for placing the feet of a user, the foot pedal supports the feet, the second telescopic rod is used for supporting the foot pedal, and when the foot pedal is needed to be used, the second telescopic rod is lengthened, so that the foot pedal can support the feet of the user.

Further, the novel headrest comprises a headrest body, and the top ends of the two connecting columns are fixedly connected with the headrest body.

The headrest is used for supporting the head of a user, is more comfortable to sit on and increases the comfort.

Compared with the prior art, the utility model has the beneficial effects that:

1. the armrest multi-point type adjusting office chair has the following advantages: the storage unit is arranged, the bearing is used for driving the hook to rotate, the hook is used for hanging articles, the storage box is used for storing articles, the sliding bar is used for driving the storage box to slide, the rectangular hole is used for placing the storage box, the door catch and the telescopic door plate are matched for fixing the storage box, the fixing plate is used for fixing the telescopic door plate, when the telescopic door plate needs to be fixed, the fixing plate is rotated, the telescopic door plate is inserted into the through hole on the door catch and the first fixing block to fix the storage box, and therefore articles are stored conveniently for users;

2. the armrest multi-point type adjusting office chair has the following advantages: the armrest unit is arranged, the L-shaped rod is used for supporting the arm, the extension rod is used for adjusting the armrest of the chair through the rotating column, the first telescopic rod is used for supporting the L-shaped rod, the first pin roll is used for driving the L-shaped rod to move, and the armrest is finely adjusted by rotating a certain angle, so that a comfortable position is achieved, and the armrest unit is convenient for a user;

3. the armrest multi-point type adjusting office chair has the following advantages: can place article, can finely tune the seat, put just when removing, can finely tune the height.

Drawings

FIG. 1 is a schematic side view of the present utility model.

FIG. 2 is a schematic view of the bottom surface structure of the present utility model

FIG. 3 is a schematic view showing the enlarged partial structure of the A-outlet in FIG. 2 according to the present utility model

FIG. 4 is a schematic view of the structure of the B-die shown in FIG. 2 in enlarged partial view according to the present utility model

FIG. 5 is a schematic view of the enlarged partial structure of the C-outlet in FIG. 2 according to the present utility model

Fig. 6 is a schematic view of a part of an enlarged structure of the armrest unit according to the present utility model

In the figure: the seat comprises a seat board, a backrest 2, a handrail unit 3, a L-shaped rod 31, an extension rod 32, a telescopic rod 33, a pin shaft 34, a slide groove 35, a rotary column 36, a slide groove 37, a slide groove 38, a slide groove 39, a head rest 4, a storage unit 5, a hook 51, a bearing 52, a storage box 53, a slide bar 54, a rectangular hole 55, a door catch 56, a telescopic door panel 57, a fixed plate 58, a connecting column 6, a turnover connecting unit 7, a fixed block 71, a connecting rod 72, a knob 73, a threaded rod 74, a connecting rod 75, a nut 76, a fixed block 77, a moving assembly 8, a rotary disc 81, a bracket 82, a pin shaft 83, a wheel 84, a telescopic rod 9, a pedal 10, a telescopic column 11, a stabilizing ring 12, a supporting rod 13, a circular fixed block 14 and a rectangular fixed block 15.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present embodiment provides a technical solution: an armrest multi-point type adjusting office chair comprises a seat board 1, a backrest 2, an armrest unit 3, a storage unit 5 and a turnover connecting unit 7;

seat board 1: the lower side surface is fixedly connected with a circular fixed block 14, the lower side of the circular fixed block 14 is fixedly connected with a telescopic column 11, a circle of support rods 13 are annularly arranged on the lower side of the telescopic column 11, the support rods 13 are sleeved with a stabilizing ring 12, and the lower end of each support rod 13 is provided with a motion assembly 8;

backrest 2: the back rest is arranged at the rear side of the seat board 1, and the upper end surface of the back rest 2 is fixedly connected with the bottom ends of two connecting columns 6;

handrail unit 3: the telescopic lifting device comprises an L-shaped rod 31, an extension rod 32, a first telescopic rod 33, a first pin roll 34, a first sliding groove 35, a rotating column 36, a second sliding groove 37, a limiting column 38 and a limiting hole 39, wherein the left side and the right side of a seat board 1 are respectively and movably connected with the bottom end of the L-shaped rod 31 in the vertical direction through the first pin roll 34, the upper surfaces of the two L-shaped rods 31 in the horizontal direction are respectively provided with the first sliding groove 35, the interiors of the first sliding grooves 35 are respectively and slidably connected with a sliding seat, the rotating column 36 is rotationally connected on the sliding seat, the lower end surfaces of the two extension rods 32 are respectively provided with a second sliding groove 37, the top of the rotating column 36 is fixed in the second sliding groove 37, the front sides of the seat board 1, which are positioned on the two sides of the two L-shaped rods 31 in the vertical direction, are respectively and movably connected with the bottom ends of the first telescopic rod 33 in the movable mode, the limiting hole 39 is provided with a linear array limiting hole 39, the top end of the first telescopic rod 33 is movably connected with the bottom of the horizontal end of the extension rod 32;

storage unit 5: the back rest 2 is arranged at the rear side, the storage unit 5 comprises a hook 51, a bearing 52, a storage box 53, sliding strips 54, rectangular holes 55, a door catch 56, a telescopic door plate 57 and a fixing plate 58, the bearing 52 is sleeved on the two connecting columns 6 respectively, the outer surfaces of the two bearings 52 are fixedly connected with the hook 51 respectively, the rectangular holes 55 are formed in the rear side surface of the back rest 2, first sliding grooves are formed in the left side and the right side of the rectangular holes 55 respectively, the sliding strips 54 are respectively and slidably connected in the first sliding grooves, the inner sides of the two sliding strips 54 are fixedly connected with the storage box 53, the rear end of the storage box 53 is movably connected with the telescopic door plate 57 through a rotating shaft, the rear side of the telescopic door plate 57 is fixedly connected with the fixing plate 58, the rear end of the storage box 53 is movably connected with the fixing plate 58 through the rotating shaft, the rear side of the back rest 2 is positioned above the fixing plate 58 and fixedly connected with the door catch 56, and the fixing plate 58 corresponds to a through hole in the first fixing block 71.

The hanger 51 is used for hanging articles, the bearing 52 is used for rotating the hanger 51, the hanger 51 can be placed between the connecting posts 6 when the hanger is not used, the storage box 53 is used for storing articles, the sliding strip 54 is used for driving the storage box 53 to slide, the rectangular hole 55 is used for placing the storage box 53, the door buckle 56 and the telescopic door plate 57 are matched for fixing the storage box 53, the fixing plate 58 is used for fixing the telescopic door plate 57, when the fixing is needed, the fixing plate 58 is rotated, and the telescopic door plate 57 is inserted into the through holes on the door buckle 56 and the first fixing block 71 to fix the storage box 53.

Turnover connection unit 7: the folding connection unit 7 comprises a first fixing block 71, a first connecting rod 72, a knob 73, a threaded rod 74, a second connecting rod 75, a nut 76 and a second fixing block 77, wherein the lower side surface of the seat plate 1 is fixedly connected with the second fixing block 77, the rear side of the second fixing block 77 is fixedly connected with the front ends of the second two connecting rods 75, the rear ends of the second two connecting rods 75 are provided with U-shaped openings, the rear side surface of the backrest 2 is fixedly connected with the first fixing block 71, the middle of the first fixing block 71 is provided with a through hole, the lower side surface of the first fixing block 71 is fixedly connected with the top ends of the first two connecting rods 72, the bottom ends of the first two connecting rods 72 respectively penetrate through the U-shaped openings of the rear ends of the second connecting rods 75, the fixing holes of the first two connecting rods 72 are respectively fixedly connected with the threaded rods 74, the sliding holes of the second connecting rods 75 are respectively connected with the threaded rods 74 in a rotating mode, the outer side ports of the second threaded rods 74 are respectively fixedly connected with the knob 73, and the inner side ports of the second threaded rods 74 are respectively in threaded connection with the nut 76.

The first fixed block 71 is used for supporting the backrest 2, the first connecting rod 72 is used for connecting the threaded rod 74, the knob 73 is used for driving the threaded rod 74 to rotate, the threaded rod 74 rotates to drive the first connecting rod 72 to rotate, the first connecting rod 72 drives the first fixed block 71 to rotate, the first fixed block 71 drives the backrest 2, thereby finely adjusting the angle of the backrest 2, a comfortable state is achieved, the second connecting rod 75 is used for fixing the threaded rod 74, the threaded rod 74 is prevented from falling off, the second connecting rod 75 can also limit the rotation of the threaded rod 74, the threaded rod 74 is prevented from shaking, the second fixed block 77 is used for supporting the seat board 1, and the nut 76 is used for fixing a chair after the fine adjustment of the threaded rod 74, so that the threaded rod 74 is prevented from continuously rotating.

The seat board 1 is used for letting the user seat, the seat board 1 is still used for fixing rectangular fixed block 15, circular fixed block 14 is used for supporting the seat board 1, telescopic column 11 is used for adjusting the seat height, bracing piece 13 is used for supporting the seat, stabilizer ring 12 supports bracing piece 13, increase seat stability, motion subassembly 8 is used for driving the seat and removes, back 2 is used for supporting user's back, back 2 still is used for fixed storage unit 5, spliced pole 6 is used with connecting headrest 4, L type pole 31 is used for supporting the arm, extension pole 32 adjusts the seat handrail through rotating column 36, telescopic rod one 33 is used for supporting L type pole 31, round pin axle one 34 is used for driving L type pole 31 activity, rotate certain angle and carry out the handrail fine setting, spout one 35 is used for limiting the movable range of rotating column 36, place rotating column 36 skew, spout two 37 are used for fixed rotating column 36, limiting hole 39 is used for limiting the angle of L type pole 31 rotation, limiting column 38 is used for fixing telescopic rod one 33, prevent telescopic rod height change, thereby carry out the fine setting to the handrail, increase the comfort, it is used for connecting the back 5 to store in the unit and for connecting with 2 and letting the article to store the back 1, let the article carry out the fine setting for connecting and letting the back 2 carry out the fine setting for connecting the article to the fine setting.

The motion assembly 8 comprises a rotating disc 81, a bracket 82, a second pin shaft 83 and a wheel 84, the bottom end of each supporting rod 13 is respectively and rotatably connected with the rotating disc 81 through a rotating shaft, the lower surface of each rotating disc 81 is respectively and fixedly connected with the bracket 82, and each bracket 82 is respectively and rotatably connected with the wheel 84 through the second pin shaft 83.

The rotating disc 81 is used for driving the wheels 84 to rotate, the bracket 82 is used for supporting the wheels 84, the pin shaft II 83 is used for driving the wheels 84 to rotate, and the wheels 84 are used for driving the chair to move.

The multifunctional pedal plate comprises a pedal plate 10, a seat plate 1 and a telescopic rod 9, and is characterized by further comprising a telescopic rod 9, a pedal plate 10 and a rectangular fixing block 15, wherein the rectangular fixing block 15 is fixedly connected to the lower surface of the seat plate 1, two sides of the rectangular fixing block 15 are fixedly connected with the telescopic rod 9 through a first rotating shaft respectively, and the inner sides of the telescopic rods 9 are fixedly connected with the left side and the right side of the pedal plate 10.

The rectangular fixing block 15 is used for supporting the foot rest 10, the foot rest 10 is used for placing the feet of a user, the foot rest 10 supports the feet, the telescopic rod II 9 is used for supporting the foot rest 10, and when the foot rest 10 needs to be used, the telescopic rod II 9 is lengthened, so that the foot rest 10 can support the feet of the user.

The novel headrest is characterized by further comprising a headrest 4, and the top ends of the two connecting posts 6 are fixedly connected with the headrest 4.

The headrest 4 is used for supporting the head of a user, is more comfortable to sit on and increases the comfort.

The utility model provides an armrest multi-point type adjusting office chair, which has the following working principle: the arm rest is supported by the L-shaped rod 31, the arm rest is adjusted by the extending rod 32 through the rotating column 36, the first telescopic rod 33 is used for supporting the L-shaped rod 31, the first pin shaft 34 is used for driving the L-shaped rod 31 to move, a certain angle is rotated, fine adjustment is conducted on the arm rest, the first sliding chute 35 is used for limiting the moving range of the rotating column 36, the rotating column 36 is placed to deviate, the second sliding chute 37 is used for fixing the rotating column 36, the limiting hole 39 is used for limiting the rotating angle of the L-shaped rod 31, the limiting column 38 is used for fixing the first telescopic rod 33, height change of the telescopic rod is prevented, fine adjustment is conducted on the arm rest, comfort is improved, the knob 73 is used for driving the threaded rod 74 to rotate through the rotating nut 76, the threaded rod 74 rotates to drive the first connecting rod 72 to drive the first fixed block 71 to rotate, the first fixed block 71 drives the backrest 2 to conduct fine adjustment on the angle of the backrest 2, a comfortable state can be achieved, the articles of a user can be placed through the telescopic column 11 to the height, the hooks 51 and the storage box 53 are matched with the storage box 53, the fixed door plate 58 is used for fixing the storage box 53, the fixed plate 58 is used for fixing the door plate 84, the fixed plate 58 is used for fixing the wheels 84, and the wheels can be used for driving the wheels 84 to rotate when the fixed plate 57 need to rotate, and the wheels 84 rotate, and the fixed plate 84 need to be used for being used for driving the rotation to rotate, and fixed plate 84 to rotate.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. An office chair is adjusted to handrail multiple spot formula, its characterized in that: comprises a seat board (1), a backrest (2), an armrest unit (3), a storage unit (5) and a turnover connecting unit (7);

seat board (1): the lower side surface is fixedly connected with a circular fixing block (14), the lower side of the circular fixing block (14) is fixedly connected with a telescopic column (11), a circle of support rods (13) are annularly arranged on the lower side of the telescopic column (11), the support rods (13) are sleeved with a stabilizing ring (12), and the lower end of each support rod (13) is provided with a moving assembly (8);

backrest (2): the back rest is arranged at the rear side of the seat board (1), and the upper end surface of the back rest (2) is fixedly connected with the bottom ends of the two connecting columns (6);

armrest unit (3): the telescopic lifting device comprises an L-shaped rod (31), an extension rod (32), first telescopic rods (33), first pin shafts (34), first sliding grooves (35), rotating columns (36), second sliding grooves (37), limiting columns (38) and limiting holes (39), wherein the left side and the right side of a seat plate (1) are respectively and movably connected with the bottom ends of the first L-shaped rods (31) in the vertical direction through the first pin shafts (34), the first sliding grooves (35) are respectively formed in the upper surfaces of the two L-shaped rods (31) in the horizontal direction, sliding seats are respectively and slidably connected in the first sliding grooves (35), the rotating columns (36) are rotatably connected on the sliding seats, second sliding grooves (37) are respectively formed in the lower end surfaces of the two extension rods (32), the tops of the rotating columns (36) are fixed in the second sliding grooves (37), the front sides of the seat plate (1) are respectively and movably connected with the bottom ends of the first vertical telescopic rods (33), the front ends of the first telescopic rods (33) are respectively and are provided with linear array limiting holes (39), and the top ends of the first telescopic rods (38) are connected with the movable ends of the first telescopic rods (32;

storage unit (5): is arranged at the rear side of the backrest (2);

the turnover connecting unit (7): for connecting the backrest (2) and the seat plate (1).

2. An armrest multi-point adjustment office chair as claimed in claim 1 wherein: the utility model discloses a folding connection unit (7) is including fixed block one (71), connecting rod one (72), knob (73), threaded rod (74), connecting rod two (75), nut (76) and fixed block two (77), the downside fixed surface of bedplate (1) is connected with fixed block two (77), the front end of two connecting rods two (75) of rear side fixed connection of fixed block two (77), U type opening has been seted up to the rear end of two connecting rods two (75), the rear side fixed surface of back (2) is connected with fixed block one (71), the through-hole has been seted up at the middle part of fixed block one (71), the top of two connecting rods one (72) of downside fixed surface connection of fixed block one (71), the U type opening of connecting rod two (75) rear ends is passed respectively to the bottom of two connecting rods one (72), the fixed orifices on two connecting rods one (72) are connected with threaded rod (74) fixed respectively, the slide hole on two connecting rods two (75) rotates with threaded rod (74) respectively, the outside of two connecting rods (74) are connected with threaded rod (74) respectively, two screw cap (76) are connected with threaded connection respectively.

3. An armrest multi-point adjustment office chair as claimed in claim 1 wherein: the storage unit (5) comprises a hook (51), a bearing (52), a storage box (53), sliding strips (54), rectangular holes (55), a door holder (56), a telescopic door plate (57) and a fixing plate (58), wherein the bearing (52) is sleeved on each of the two connecting columns (6), the outer surfaces of the two bearings (52) are fixedly connected with the hook (51) respectively, the rectangular holes (55) are formed in the rear side surface of the backrest (2), sliding grooves I are formed in the left side and the right side of the rectangular holes (55) respectively, sliding strips (54) are respectively connected to the sliding strips in the sliding grooves I in a sliding mode, the inner sides of the two sliding strips (54) are fixedly connected with the storage box (53), the rear end of the storage box (53) is movably connected with the telescopic door plate (57) through a rotating shaft, the rear side of the telescopic door plate (57) is fixedly connected with the fixing plate (58), the rear end of the storage box (53) is fixedly connected with the fixing plate (58) through the rotating shaft, the rear side of the backrest (2) is located above the fixing plate (58) and is fixedly connected with the fixing plate (56), and the door plate (58) is correspondingly provided with a through hole (71).

4. An armrest multi-point adjustment office chair as claimed in claim 1 wherein: the motion assembly (8) comprises a rotating disc (81), a support (82), a second pin shaft (83) and wheels (84), the bottom end of each supporting rod (13) is respectively and rotatably connected with the rotating disc (81) through a rotating shaft, the lower surface of each rotating disc (81) is respectively and fixedly connected with the support (82), and each support (82) is respectively and rotatably connected with the wheels (84) through the second pin shaft (83).

5. An armrest multi-point adjustment office chair as claimed in claim 1 wherein: the multifunctional pedal comprises a seat plate (1), and is characterized by further comprising a telescopic rod II (9), a pedal (10) and rectangular fixing blocks (15), wherein the rectangular fixing blocks (15) are fixedly connected to the lower surface of the seat plate (1), two sides of the rectangular fixing blocks (15) are fixedly connected with the telescopic rod II (9) through a rotating shaft I respectively, and the inner sides of the two telescopic rods II (9) are fixedly connected with the left side and the right side of the pedal (10).

6. An armrest multi-point adjustment office chair as claimed in claim 1 wherein: the device also comprises a headrest (4), and the top ends of the two connecting posts (6) are fixedly connected with the headrest (4).