Office chair with adjustable telescopic cushion

Abstract

The utility model relates to the field of office chairs, and discloses an office chair with an adjustable telescopic cushion, which comprises a cushion, the inside of the cushion is fixedly connected with a shell, the inside of the shell is fixedly connected with a motor, the output end of the motor is rotatably connected with a fluted disc, and the inner wall of the fluted disc is meshed with a plurality of bevel gears. The bottom of the shell is fixedly connected with a plurality of fixing cylinders, the bottoms of the bevel gears are fixedly connected with threaded lead screws, the outer walls of the threaded lead screws are in threaded connection with extending cylinders, the bottoms of the extending cylinders are provided with wheels, and the bottoms of the fixing cylinders are fixedly connected with foot pads. And an extension assembly is arranged at the top of the seat cushion. According to the office chair, when a user needs to fix the office chair, the driving motor drives the wheels to ascend, after the wheels ascend to be higher than the foot pads, the wheels can stop ascending due to limiting of the limiting grooves, the foot pads can replace the wheels to be connected with the ground to fix the office chair, and the chair legs and the chair body can be fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of adjustable office chair, especially adjustable telescopic cushion office chair. BACKGROUND

[0002] Adjustable telescopic cushion office chair is a kind of office chair with special design, part structure can be adjusted and telescopic according to the demand of user, in order to meet the comfort, efficient and healthy needs of people in the process of office and design, with more standard structure and function, usually fixed or adjustable height, backrest and handrail are more conventional, applicable to general office scene.

[0003] In order to facilitate the movement of office chair in the process of using, the base of existing office chair will correspondingly increase multiple rotating wheels to meet its required flexibility, and in order to stability, these rotating wheels will be correspondingly provided with buckles, the brake function is realized by increasing the friction with the wheel body in rotating wheel, so as to keep the stability of office chair as a whole, but with long-term use, friction will gradually deform or break due to abrasion, so that the wheel loses brake function, and the stability is greatly reduced. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides adjustable telescopic cushion office chair, aims at improving the problem that wheel cannot be completely fixed and resting and placing is troublesome.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: adjustable telescopic cushion office chair, including cushion, the inside fixedly connected with shell of cushion, the inside fixedly connected with motor of shell, the output end rotationally connected with gear disc of motor, the inner wall of gear disc is connected with multiple bevel gears, the bottom fixedly connected with multiple fixed cylinders of shell, the bottom fixedly connected with multiple threaded spindles of multiple bevel gears, the outer wall of multiple threaded spindles is connected with extension cylinder, the bottom of multiple extension cylinders is installed with wheel, the bottom fixedly connected with foot pad of multiple fixed cylinders, the top of cushion is provided with extension assembly.

[0006] Preferably, the extension assembly includes multiple armrests, the multiple armrests are fixedly connected to the top of the cushion, the inside of one of the armrests is slidably connected with multiple table boards, and the multiple table boards are connected by hinges.

[0007] Preferably, the inside rear side of the cushion is fixedly connected with a steel plate, the outer wall of the steel plate is fixedly connected with a backrest, the front side bottom of the backrest is fixedly connected with a waist rest, the front side top of the backrest is installed with a buckle, and the outer wall of the buckle is provided with a headrest.

[0008] Preferably, the plurality of bevel gears are rotatably connected to the top of the fixed cylinder, the outer walls of the plurality of fixed cylinders are provided with limiting grooves, and the extension cylinder is slidably connected to the inner wall of the limiting grooves.

[0009] Preferably, the headrest is attached to the top front side of the backrest by a snap fastener.

[0010] Preferably, one of the armrests has a groove inside, and the bottom of the tabletop has a slider that is slidably connected to the inner wall of the groove.

[0011] Preferably, the toothed disc is rotatably connected to the inner wall of the housing.

[0012] Preferably, the headrest is slidably connected to the top of the table, and the interior of the headrest is filled with latex.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, when the office chair needs to be fixed and not moved while sitting on the seat cushion, the drive motor drives the gear plate to rotate, the gear plate drives the bevel gear, and the threaded rod in the fixed cylinder fixed below the outer shell rotates at the same time due to the rotation of the bevel gear, so that the extension cylinder rises along the threaded rod, and then drives the wheel fixed below the threaded rod to rise. After the wheel rises above the foot pad, it will stop rising due to the limit of the limiting groove. The foot pad will replace the wheel to ground and fix the office chair. The chair legs and the chair body will be fixed.

[0015] 2. In this utility model, when it is necessary to place items or lie down to rest, the table inside the right armrest can be pulled out through the sliding groove inside the armrest, and then the table connected by the hinge can be opened. When fully unfolded, it is a long board. The headrest on the front side can be removed by the buckle and placed on the table. The latex filling inside makes it more comfortable for people to lie down to rest. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the adjustable telescopic seat office chair proposed in this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the bevel gear of the adjustable telescopic seat office chair proposed in this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the threaded lead screw of the adjustable telescopic cushion office chair proposed in this utility model.

[0019] Figure 4 This is a schematic cross-sectional view of the backrest of the adjustable telescopic seat office chair proposed in this utility model.

[0020] Figure 5 This is a cross-sectional schematic diagram of the armrest of the adjustable telescopic seat office chair proposed in this utility model.

[0021] Legend:

[0022] 1, cushion; 2, shell; 3, motor; 4, gear; 5, bevel gear; 6, fixed cylinder; 7, wheel; 8, foot pad; 9, buckle; 10, threaded rod; 11, extension cylinder; 12, headrest; 13, waist support; 14, steel plate; 15, backrest; 16, table board; 17, hinge; 18, armrest. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the specification 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.

[0024] Referring to Figure 1 , Figure 2 , Figure 3 An embodiment provided by the utility model: adjustable telescopic cushion office chair, including cushion 1, referring to Figure 1 The front side of the cushion 1 is provided with a telescopic block, which can adjust the length of the cushion 1 to meet the needs of the user. The inside of the cushion 1 is fixedly connected with a shell 2, the inside of the shell 2 is fixedly connected with a motor 3, the output end of the motor 3 is rotatably connected with a gear 4, the inner wall of the gear 4 is meshingly connected with a plurality of bevel gears 5, the bottom of the shell 2 is fixedly connected with a plurality of fixed cylinders 6, the bottom of the plurality of bevel gears 5 is fixedly connected with a threaded rod 10, the outer wall of the plurality of threaded rods 10 is threadedly connected with an extension cylinder 11, the bottom of the plurality of extension cylinders 11 is installed with a wheel 7, the bottom of the plurality of fixed cylinders 6 is fixedly connected with a foot pad 8, and the top of the cushion 1 is provided with an extension assembly.

[0025] Specifically, the telescopic block on the front side of the cushion 1 can be adjusted in length. The shell 2 in the cushion 1 is fixedly connected with a gear set and a plurality of fixed cylinders 6. The shell 2 wraps the motor 3 gear set inside to prevent the mechanism from being affected by external factors. The motor 3 drives the gear 4, the gear 4 drives the bevel gear 5, the bevel gear 5 drives the threaded rod 10 in the fixed cylinder 6 to rotate, the rotation of the threaded rod 10 drives the extension cylinder 11 to rise, and the wheel 7 fixed below the extension cylinder 11 will rise above the foot pad 8. After the wheel 7 rises, the foot pad 8 will be in contact with the ground, so that the stool legs will not shake or be easily pushed.

[0026] Referring to Figure 5 , the extension assembly includes a plurality of armrests 18, and the plurality of armrests 18 are fixedly connected to the top of the cushion 1. The inside of one of the armrests 18 is slidably connected with a plurality of table boards 16, and the plurality of table boards 16 are connected through hinges 17.

[0027] Specifically, the table board 16 inside the right side armrest 18 can be pulled out to be flipped open, and the plurality of table boards 16 are connected by using the hinges 17, and can be combined into a table after being opened, and can be placed or used by people lying down.

[0028] Referring to Figure 4 , the inside rear side of the cushion 1 is fixedly connected with a steel plate 14, the outer wall of the steel plate 14 is fixedly connected with a backrest 15, the front side bottom of the backrest 15 is fixedly connected with a waist rest 13, the front side top of the backrest 15 is installed with a buckle 9, and the outer wall of the buckle 9 is provided with a headrest 12.

[0029] Specifically, the cushion 1 and the backrest 15 are connected by using the steel plate 14, the steel plate 14 has a certain toughness, so that the person leaning on the backrest 15 will not maintain a fixed posture, and the headrest 12 and the waist rest 13 installed on the backrest 15 will also bring the person's body part relaxation.

[0030] Referring to Figure 3 , a plurality of bevel gears 5 are rotationally connected to the top of the fixed cylinder 6, a plurality of limiting grooves are formed in the outer wall of the fixed cylinder 6, and an extension cylinder 11 is slidingly connected to the inner wall of the limiting groove.

[0031] Specifically, the rotation of the bevel gear 5 will not drive the rotation of the fixed cylinder 6, and the limiting groove formed in the outer wall of the fixed cylinder 6 can make the extension cylinder 11 move within a certain range.

[0032] Referring to Figure 4 , the headrest 12 is attached to the front side top of the backrest 15 by the buckle 9.

[0033] Specifically, the headrest 12 can be disassembled by the buckle 9.

[0034] Referring to Figure 5 , the inside of one of the armrests 18 is provided with a sliding groove, and the bottom of the table board 16 is provided with a sliding block which is slidingly connected to the inner wall of the sliding groove.

[0035] Specifically, the sliding groove formed in the inside of the right side armrest 18 can make the table board 16 move within a certain range.

[0036] Referring to Figure 2 , the tooth disc 4 is rotationally connected to the inner wall of the shell 2.

[0037] Specifically, the rotation of the tooth disc 4 will drive the rotation of the bevel gear 5, and the shell 2 fixes the movement range of the tooth disc 4.

[0038] Referring to Figure 4 and Figure 5 , the headrest 12 is slidingly connected to the top of the table board 16, and the inside of the headrest 12 is filled with latex.

[0039] Specifically, the headrest 12 is detachably mounted on the top of the table plate 16, and can be used for people to lie down and rest, and the latex filled in the headrest 12 can make the limbs of the people lying down more comfortable.

[0040] Working principle: when sitting on the cushion 1, the gear disc 4 is driven to rotate by the motor 3 in the shell 2, the rotation of the gear disc 4 drives the bevel gear 5 connected with the gear disc 4 to rotate, the bevel gear 5 is connected with the threaded rod 10 below, the rotation of the threaded rod 10 drives the extension cylinder 11 to rise along the threaded rod 10, the bottom of the extension cylinder 11 is provided with the wheels 7, the wheels 7 will rise above the ground, and the foot pad 8 will be grounded, so that the whole office chair is fixed.

[0041] The top of the cushion 1 is provided with two armrests 18, the right armrest 18 is internally provided with a sliding groove and a table plate 16, the table plate 16 can be pulled out through the sliding connection of the sliding block and the sliding groove, the hinge 17 is linked with three table plates 16, and the table plates 16 can be unfolded and laid flat through the hinge 17, so as to be used for people to place articles.

[0042] The steel plate 14 in the back of the cushion 1 is used to fix the backrest 15, the backrest 15 is provided with the headrest 12 and the waist rest 13 in front, the headrest 12 can be detachably placed on the table plate 16, and can be used for people to lie down and rest, and the latex filled in the headrest 12 can be more comfortable.

[0043] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made in the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. Adjustable, telescopic cushion office chair, comprising a cushion (1), characterized in that: The inside of the seat cushion (1) is fixedly connected with a shell (2), the inside of the shell (2) is fixedly connected with a motor (3), the output end of the motor (3) is rotatably connected with a toothed disc (4), the inner wall of the toothed disc (4) is meshedly connected with a plurality of bevel gears (5), the bottom of the shell (2) is fixedly connected with a plurality of fixed cylinders (6), the bottom of the plurality of bevel gears (5) is fixedly connected with threaded lead screws (10), the outer wall of the plurality of threaded lead screws (10) is threadedly connected with extension cylinders (11), the bottom of the plurality of extension cylinders (11) is mounted with wheels (7), the bottom of the plurality of fixed cylinders (6) is fixedly connected with foot pads (8), and the top of the seat cushion (1) is provided with an extension assembly.

2. The adjustable telescoping seat cushion office chair of claim 1, wherein: The extension assembly comprises a plurality of armrests (18), and the plurality of armrests (18) are fixedly connected to the top of the seat cushion (1), wherein the inside of one of the armrests (18) is slidably connected with a plurality of table boards (16), and the plurality of table boards (16) are connected by hinges (17).

3. The adjustable telescoping seat cushion office chair of claim 1, wherein: The inside of the seat cushion (1) is fixedly connected with a steel plate (14), the outer wall of the steel plate (14) is fixedly connected with a backrest (15), the front bottom of the backrest (15) is fixedly connected with a waist rest (13), the front top of the backrest (15) is mounted with a buckle (9), and the outer wall of the buckle (9) is provided with a headrest (12).

4. The adjustable telescoping seat cushion office chair of claim 1, wherein: The plurality of bevel gears (5) are rotatably connected to the top of the fixed cylinder (6), the outer wall of the plurality of fixed cylinders (6) is provided with a limiting groove, and the extension cylinder (11) is slidably connected to the inner wall of the limiting groove.

5. The adjustable telescoping seat cushion office chair of claim 3, wherein: The headrest (12) is attached to the front top of the backrest (15) through the buckle (9).

6. The adjustable telescoping seat cushion office chair of claim 2, wherein: The inside of one of the armrests (18) is provided with a sliding groove, the bottom of the table board (16) is provided with a sliding block, and the sliding block is slidably connected to the inner wall of the sliding groove.

7. The adjustable telescoping seat cushion office chair of claim 1, wherein: The toothed disc (4) is rotatably connected to the inner wall of the shell (2).

8. The adjustable telescoping seat cushion office chair of claim 3, wherein: The headrest (12) is slidably connected to the top of the table board (16), and the inside of the headrest (12) is filled with latex.

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