CN215126293U

CN215126293U - Office chair

Info

Publication number: CN215126293U
Application number: CN202121707298.1U
Authority: CN
Inventors: 陈荣坤; 赵振辉; 张锦成
Original assignee: Guangdong Fuhemei Industrial Co ltd
Current assignee: Guangdong Fuhemei Industrial Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-12-14
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses an office chair, which comprises a chair seat and a backrest arranged on the chair seat, and comprises a U-shaped bottom frame, wherein X-shaped chair legs are fixedly connected with both sides of the upper end surface of the U-shaped bottom frame, the chair seat is arranged between the upper ends of the two X-shaped chair legs, sliding grooves are respectively arranged on the opposite sides of two strip blocks of the U-shaped bottom frame, and limiting strip holes communicated with the sliding grooves are respectively arranged in the middle of the two side surfaces of the U-shaped bottom frame; a sliding frame is connected between the two sliding grooves in a sliding manner, the end parts of the two sides of the sliding frame are fixedly connected with limiting blocks, and the limiting blocks are connected with the limiting strip holes in a sliding manner; the utility model discloses a lifting unit who sets up can adjust the height of foot cushion to still can adjust the interval between foot cushion and the seat support with sliding tray sliding connection's slide frame, and then make the equal comfortable use of the personnel of different heights, promoted office chair's practicality greatly.

Description

Office chair

Technical Field

The utility model relates to the technical field of seats, in particular to an office chair.

Background

Office chairs refer to various chairs which are convenient to work in daily work and social activities, office partners divide the office chairs into a narrow sense and a broad sense, the narrow office chair refers to a backrest chair on which a person sits when working on a desktop in a sitting posture, the broad office chair is all chairs used in offices, and in order to improve comfort, foot supports are generally arranged on the office chairs to support legs so as to avoid the situation that the legs are numb due to unsmooth blood circulation caused by the fact that thighs are pressed on the chairs for a long time.

The foot that sets up on current office chair holds in the palm, general equal direct fixed connection is on the seat, but because the personnel shank length inequality of different heights, consequently can lead to fixed foot to hold in the palm not suitable for a lot of people on the seat, fix the foot support on office chair simultaneously when carrying or removing office chair, all very obstacles to can occupy great space when the transportation, very inconvenient, based on above-mentioned problem, we provide an improved office chair.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an office chair to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an office chair comprises a chair seat and a backrest arranged on the chair seat, and comprises a U-shaped underframe, wherein X-shaped chair legs are fixedly connected to two sides of the upper end surface of the U-shaped underframe;

a sliding frame is connected between the two sliding grooves in a sliding manner, the end parts of the two sides of the sliding frame are fixedly connected with limiting blocks, the limiting blocks are connected with limiting strip holes in a sliding manner, and first screw knobs for fixing the positions of the sliding frames are further arranged at the tail ends of the upper end surfaces of the two strips of the U-shaped underframe;

the lifting frame is arranged above the sliding frame, a lifting assembly used for adjusting the height of the lifting frame is installed between the lifting frame and the sliding frame, and a foot cushion block is fixedly connected to the upper end face of the lifting frame.

As a further aspect of the present invention: still include the vertical bar hole, set up the position in back both sides respectively in two vertical bar holes, the position that one side that the seat support was kept away from to the back was located in the middle of two vertical bar holes is equipped with the mounting panel, sliding connection has the U-shaped slider on the mounting panel, and U-shaped slider both sides board passes and installs the bustle between the vertical bar hole position, still be equipped with the third spiral shell knob that is used for fixed U-shaped slider position in the middle of the U-shaped slider.

As a further aspect of the present invention: the lifting assembly comprises a strip-shaped groove and a strip-shaped hole, the two strip-shaped grooves are respectively arranged at one side of two opposite faces inside the sliding frame, the two strip-shaped holes are respectively arranged at one side of two side frames of the lifting frame, a first moving rod is slidably connected between the two strip-shaped grooves, a second moving rod is slidably connected between the two strip-shaped holes, a first fixed rod is fixedly connected between the two opposite faces inside the sliding frame, a second fixed rod is fixedly connected between the two opposite faces of the side frames of the lifting frame, at least two scissors rods are further arranged between the sliding frame and the lifting frame, the scissors rods are rotatably connected with the first moving rod, the first fixed rod, the second moving rod and the second fixed rod, and the two ends of the second moving rod are respectively provided with a fixing assembly for fixing the position of the second moving rod.

As a further aspect of the present invention: the fixing assembly comprises L-shaped plates, the two L-shaped plates are fixedly connected to the two ends of the second moving rod respectively, and second screw knobs used for fixing the position of the second moving rod are arranged on the lower end faces of the L-shaped plates.

As a further aspect of the present invention: the foot pad block up end sets up for the slope to be equipped with a plurality of on the inclined plane and be used for skid-proof bar line.

As a further aspect of the present invention: two auxiliary wheels are arranged on the lower end face of one side frame, far away from the U-shaped bottom frame, of the sliding frame, and the two auxiliary wheels are symmetrically arranged on the center line of the sliding frame.

As a further aspect of the present invention: the universal wheels are installed at the positions of four corners of the lower end face of the U-shaped underframe, and the universal wheels are provided with clips for fixing the universal wheels.

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

1. the utility model discloses a lifting unit who sets up can adjust the height of foot cushion to still can adjust the interval between foot cushion and the seat support with sliding tray sliding connection's slide frame, and then make the equal comfortable use of the personnel of different heights, promoted office chair's practicality greatly.

2. The utility model discloses a sliding tray of seting up on the U-shaped chassis to and sliding tray sliding connection's sliding frame, can remove or when transporting office chair, push away lifting unit and callus on the sole piece on sliding tray and the sliding tray seat support below and accomodate, and fix the position of sliding tray through first spiral shell knob, and then can be convenient for office chair's removal or transportation, avoided traditional foot to hold in the palm occupation space to influence the problem of removal and transportation.

3. The utility model discloses add mobilizable bustle on the back, and then can be convenient for when using office chair, carry out corresponding adjustment to the bustle according to user's self demand to obtain more comfortable position of sitting, the effectual practicality that improves office chair.

Drawings

Fig. 1 is a schematic structural view of an office chair.

Fig. 2 is a schematic structural view of a lifting assembly in an office chair.

Fig. 3 is a schematic structural view of a lifting frame in an office chair.

Fig. 4 is a schematic structural diagram of embodiment 3 in an office chair.

Fig. 5 is an enlarged schematic view of a U-shaped bottom frame of an office chair.

Fig. 6 is a schematic structural view of a sliding frame in an office chair, which is received in a sliding groove.

Fig. 7 is a schematic structural view of an office chair in combination with a trim panel.

Wherein: 1. a U-shaped chassis; 2. a universal wheel; 3. x-shaped chair legs; 4. a chair seat; 5. a backrest; 6. a vertical bar hole; 7. a waist pad; 8. mounting a plate; 9. a foot pad block; 10. a lifting frame; 11. an auxiliary wheel; 12. a sliding frame; 13. shearing a fork rod; 14. a strip-shaped groove; 15. a first movable bar; 16. a first fixing lever; 17. a strip-shaped hole; 18. a limiting block; 19. a first screw knob; 20. an L-shaped plate; 21. a second screw knob; 22. a third screw knob; 23. a U-shaped slider; 24. a sliding groove; 25. limiting strip holes; 26. a second movable bar; 27. and a second fixing rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-6, in an embodiment of the present invention, an office chair includes a chair seat 4 and a backrest 5 disposed on the chair seat 4, and includes a U-shaped bottom frame 1, both sides of an upper end surface of the U-shaped bottom frame 1 are fixedly connected with X-shaped chair legs 3, the chair seat 4 is mounted between upper ends of the two X-shaped chair legs 3, opposite sides of two strips of the U-shaped bottom frame 1 are both provided with sliding grooves 24, and a limiting strip hole 25 communicated with the sliding grooves 24 is disposed in the middle of two side surfaces of the U-shaped bottom frame 1;

a sliding frame 12 is connected between the two sliding grooves 24 in a sliding manner, the end parts of the two sides of the sliding frame 12 are fixedly connected with limit blocks 18, the limit blocks 18 are connected with limit strip holes 25 in a sliding manner, and the tail ends of the upper end surfaces of the two strip blocks of the U-shaped underframe 1 are also provided with first screw knobs 19 for fixing the position of the sliding frame 12; the stopper 18 is provided to prevent the sliding frame 12 from being removed from the sliding groove 24, and the first screw knob 19 is provided to fix the position of the sliding frame 12.

The lifting frame 10 is arranged above the sliding frame 12, a lifting assembly used for adjusting the height of the lifting frame 10 is installed between the lifting frame 10 and the sliding frame 12, and a foot cushion block 9 is fixedly connected to the upper end face of the lifting frame 10. The height of the foot cushion block 9 can be adjusted through the lifting component arranged, and the sliding frame 12 connected with the sliding groove 24 in a sliding mode can also adjust the distance between the foot cushion block 9 and the chair seat 4, so that people with different heights can use comfortably, and the practicability of the office chair is greatly improved.

Two auxiliary wheels 11 are arranged on the lower end face of one side frame of the sliding frame 12, which is far away from the U-shaped underframe 1, and the two auxiliary wheels 11 are symmetrically arranged by the central line of the sliding frame 12; the two auxiliary wheels 11 are provided to support the sliding frame 12 so that the sliding frame 12 is not unstable even when it is drawn out to the maximum length.

Universal wheels 2 are mounted at four corners of the lower end face of the U-shaped underframe 1, and clips for fixing the universal wheels 2 are arranged on the universal wheels 2; can be convenient for carry out the bulk movement to the office chair through the universal wheel 2 that sets up, the checkpost that sets up simultaneously on universal wheel 2 can be fixed universal wheel 2 for can make stable the placing of office chair when not needing to remove.

The lifting component comprises strip-shaped grooves 14 and strip-shaped holes 17, the two strip-shaped grooves 14 are respectively arranged at one side of two opposite surfaces in the sliding frame 12, the two strip-shaped holes 17 are respectively arranged at one side of two side frames of the lifting frame 10, a first moving rod 15 is connected between the two strip-shaped grooves 14 in a sliding way, a second moving rod 26 is connected between the two strip-shaped holes 17 in a sliding way, a first fixing rod 16 is fixedly connected between the other sides of the two opposite surfaces in the sliding frame 12, a second fixed rod 27 is fixedly connected between the other sides of the two side frames of the lifting frame 10, at least two scissor rods 13 are arranged between the sliding frame 12 and the lifting frame 10, the scissor rods 13 are rotatably connected with the first movable rod 15, the first fixed rod 16, the second movable rod 26 and the second fixed rod 27, fixing components for fixing the position of the second moving rod 26 are arranged at two ends of the second moving rod 26; when rising or lowering going on to the lifting frame 10, through pulling lifting frame 10, make first carriage release lever 15 and second carriage release lever 26 slide in bar groove 14 and bar hole 17 respectively to drive scissors fork 13 and open and shut, and then realize the height adjustment of lifting frame 11.

The fixing assembly comprises L-shaped plates 20, the two L-shaped plates 20 are respectively fixedly connected to the positions of two ends of a second moving rod 26, and second screw knobs 21 for fixing the position of the second moving rod 26 are arranged on the lower end faces of the L-shaped plates 20; the second moving rod 26 is limited by the arranged L-shaped plate 20, and the position of the L-shaped plate 20 can be fixed by the second screw knob 21 on the L-shaped plate 20, so that the second moving rod 26 is fixed.

Example 2

Referring to fig. 2, the difference from embodiment 1 is: the upper end surface of the foot cushion block 9 is obliquely arranged, and a plurality of anti-skid strip-shaped grains are arranged on the oblique surface; through set up the inclined plane on callus on the sole piece 9, but convenient to use person's foot tramples, the state of foot when more conforming to the position of sitting to the bar line that sets up on the slope can effectually play the antiskid effect, avoids appearing the condition of skidding.

Example 3

Referring to fig. 4 to 6, the difference from embodiment 1 is: still include vertical hole 6, set up the position in back 5 both sides respectively in two vertical holes 6, the position that seat support 4 was kept away from to back 5 one side is located two vertical holes 6 middles is equipped with mounting panel 8, sliding connection has U-shaped slider 23 on the mounting panel 8, and U-shaped slider 23 both sides board passes and installs bustle 7 between the vertical hole 6 position, still be equipped with the third spiral shell knob 22 that is used for fixed U-shaped slider 23 position in the middle of the U-shaped slider 23.

Through having add mobilizable bustle 7 on back 5, and then can be convenient for when using office chair, carry out corresponding adjustment to bustle 7 according to user's self demand, slide about going on mounting panel 8 through with U-shaped slider 23 when the adjustment, can adjust bustle 7's position, then fix U-shaped slider 23 position through rotatory third spiral shell knob 22, can realize the fixed of bustle 7 height, in order to obtain more comfortable position of sitting, the effectual practicality that has improved office chair.

The utility model discloses a theory of operation is: the utility model discloses when using, pull out through the sliding tray 24 with sliding frame 12 on the U-shaped chassis 1, adjust and fix sliding frame 12 through rotatory first spiral shell knob 19 after the position, then carry out the pull-up or push down to foot cushion 9 according to self needs, fix the position of second carriage release lever 26 through rotatory second spiral shell knob 21 after the high adjustment of callus on the sole piece 9 is accomplished, in order to realize the fixed to scissors pole 13, and then can fix the height of foot cushion 9, when needs highly adjust bustle 7, through sliding U-shaped slider 23 from top to bottom on mounting panel 8, can adjust bustle 7's position, then fix U-shaped slider 23 position through rotatory third spiral shell knob 22, can realize the fixed to bustle 7 height, make the user more comfortable when using.

In some embodiments, as shown in FIG. 7, the lower half of the office chair, as shown in the figure, can obscure the structure of the lower half of the office chair.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Although the present description is described in terms of embodiments, not every embodiment includes only one technical solution, and such description of the embodiments is merely for clarity, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The utility model provides an office chair, includes seat support (4) and establishes back (5) on seat support (4), its characterized in that: the chair is characterized by further comprising a U-shaped underframe (1), wherein X-shaped chair legs (3) are fixedly connected to two sides of the upper end surface of the U-shaped underframe (1), a chair seat (4) is installed between the upper ends of the two X-shaped chair legs (3), sliding grooves (24) are formed in the opposite sides of two strip blocks of the U-shaped underframe (1), and limiting strip holes (25) communicated with the sliding grooves (24) are formed in the middles of the two side surfaces of the U-shaped underframe (1);

a sliding frame (12) is connected between the two sliding grooves (24) in a sliding manner, the end parts of the two sides of the sliding frame (12) are fixedly connected with limiting blocks (18), the limiting blocks (18) are connected with limiting strip holes (25) in a sliding manner, and the tail ends of the upper end surfaces of the two strip blocks of the U-shaped underframe (1) are also provided with first screw knobs (19) for fixing the position of the sliding frame (12);

the lifting frame is characterized in that a lifting frame (10) is arranged above the sliding frame (12), a lifting assembly used for adjusting the height of the lifting frame (10) is installed between the lifting frame (10) and the sliding frame (12), and a foot cushion block (9) is fixedly connected to the upper end face of the lifting frame (10).

2. The office chair according to claim 1, further comprising vertical bar holes (6), wherein the two vertical bar holes (6) are respectively arranged at positions on two sides of the backrest (5), a mounting plate (8) is arranged at a position, located in the middle of the two vertical bar holes (6), of one side, far away from the seat (4), of the backrest (5), a U-shaped sliding part (23) is connected onto the mounting plate (8) in a sliding mode, a waist pad (7) is arranged between the positions, passing through the vertical bar holes (6), of the two side plates of the U-shaped sliding part (23), and a third screw knob (22) used for fixing the position of the U-shaped sliding part (23) is further arranged in the middle of the U-shaped sliding part (23).

3. The office chair as claimed in claim 2, wherein the lifting assembly comprises a strip-shaped groove (14) and a strip-shaped hole (17), the two strip-shaped grooves (14) are respectively arranged at one side of two opposite sides in the sliding frame (12), the two strip-shaped holes (17) are respectively arranged at one side of two side frames in the lifting frame (10), a first moving rod (15) is slidably connected between the two strip-shaped grooves (14), a second moving rod (26) is slidably connected between the two strip-shaped holes (17), a first fixing rod (16) is fixedly connected between the other sides of the two opposite sides in the sliding frame (12), a second fixing rod (27) is fixedly connected between the other sides of the two side frames in the lifting frame (10), at least two scissors rods (13) are further arranged between the sliding frame (12) and the lifting frame (10), and the scissors rods (13) and the first moving rod (15), The first fixing rod (16), the second moving rod (26) and the second fixing rod (27) are rotatably connected, and fixing assemblies for fixing the position of the second moving rod (26) are arranged at two ends of the second moving rod (26).

4. An office chair as claimed in claim 3, wherein the fixing assembly comprises L-shaped plates (20), the two L-shaped plates (20) are respectively fixedly connected at the positions of two ends of the second moving rod (26), and the lower end surfaces of the L-shaped plates (20) are respectively provided with a second screw knob (21) for fixing the position of the second moving rod (26).

5. An office chair as claimed in claim 1, characterised in that the upper end surface of the foot rest (9) is inclined and that the inclined surface is provided with a plurality of non-slip ribs.

6. An office chair as claimed in claim 3, characterized in that the lower end of the side frame of the sliding frame (12) far away from the U-shaped chassis (1) is provided with two auxiliary wheels (11), and the two auxiliary wheels (11) are arranged symmetrically with respect to the center line of the sliding frame (12).

7. An office chair as claimed in claim 1, characterized in that universal wheels (2) are mounted at four corners of the lower end surface of the U-shaped chassis (1), and the universal wheels (2) are provided with clips for fixing the universal wheels (2).