CN217592389U

CN217592389U - Foot support structure of office chair

Info

Publication number: CN217592389U
Application number: CN202221391714.6U
Authority: CN
Inventors: 左伯良
Original assignee: Foshan Hongqiao Furniture Co ltd
Current assignee: Foshan Hongqiao Furniture Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-10-18
Anticipated expiration: 2032-06-02

Abstract

The utility model provides a foot support structure of an office chair, which comprises a foot support and symmetrically arranged telescopic rods; the telescopic rods on the two sides are connected through a fixed rod; a rotary limiting part with a cylindrical structure is fixedly arranged on the fixed rod, and the rotary limiting part is provided with an upper clamping groove and a lower clamping groove opposite to the upper clamping groove in direction; the bottom of the foot support is provided with a rotating structure; the fixed rod is fixed in the rotating structure; the rotating structure is internally provided with a foot support card which can move up and down through a spring and a foot support switch; the foot support is provided with an unfolding state that the top end part of the foot support card is clamped into the clamping groove on the rotating limiting part and a downward turning state that the foot support card is clamped into the clamping groove below the rotating limiting part; the foot support can rotate relative to the telescopic rod through the rotating structure, a rest space is provided for a user when the foot support is unfolded, and the work is not influenced after the foot support is stored; the pulling foot holds in the palm the switch and makes the foot hold in the palm and can follow the expansion state and switch into down the state of turning over, simple structure, and the practicality is strong.

Description

Foot support structure of office chair

Technical Field

The utility model relates to an office chair technical field, more specifically the foot that says so relates to office chair holds in palm structure.

Background

The foot rest is an essential part of the office chair with the function of noon break. The chair that uses in the office mostly can't go up and down and adjust the back at present, however along with the continuous acceleration of life rhythm, many staff noon choose to have a rest at the company, and at rest time, the staff also lies prone at the desktop rest usually, leads to shoulder pain, neck sour etc. to influence work efficiency. Therefore, it is necessary to provide a retractable foot support structure used with an office chair to improve the noon break quality of the staff in the workday.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a foot of office chair holds in palm structure.

In order to realize the purpose, the utility model adopts the following technical scheme: comprises foot supports and symmetrically arranged telescopic rods; the telescopic rods on the two sides are connected through a fixed rod; a rotary limiting part with a cylindrical structure is fixedly arranged on the fixed rod, and the rotary limiting part is provided with an upper clamping groove and a lower clamping groove opposite to the upper clamping groove in direction; the bottom of the foot support is provided with a rotating structure; the fixed rod is fixed in the rotating structure to realize the connection of the foot support and the telescopic rod; the rotating structure is internally provided with a foot support clamping piece which can move up and down through a spring and a foot support switch; the foot support is provided with an unfolding state that the top end part of the foot support card is clamped into the clamping groove on the rotation limiting part and a downward turning state that the foot support card is clamped into the clamping groove below the rotation limiting part; the foot holds in the palm the switch, the foot holds in the palm the switch part and presses down the foot and holds in the palm the card, and the foot holds in the palm the card and breaks away from last draw-in groove or draw-in groove down, rotates the locating part and presses on the foot holds in the palm the card, and the foot holds in the palm can rotate wantonly around the dead lever, realizes the switching of expansion state and the state of turning over down.

In a further technical scheme, a mounting cavity for mounting a fixing rod, a mounting position matched with a rotation limiting part and a switch mounting position for mounting a foot rest switch are formed in the rotating structure; the rotating structure comprises a foot support clamping seat and a foot support clamping seat cover which are mutually interlocked and connected through screws or buckles; the foot support clamping seat is provided with the long limiting groove. The fixed rod, the rotation limiting part and the foot support switch are fixed on the rotating structure through the foot support clamping seat and the foot support clamping seat cover, so that the fixed rod, the rotation limiting part and the foot support switch are linked.

In a further technical scheme, the foot rest switch comprises a switch main body, a rotating shaft and a contact part for pressing the middle part of a foot rest card; the rotating shaft is arranged on the platform between the switch installation position and the long limiting groove. After the switch main body is pulled outwards, due to the lever principle, the rotating shaft rotates to apply pressure to the contact part, so that the foot support card is pressed downwards and separated from the upper clamping groove or the lower clamping groove.

In a further technical scheme, spring mounting positions communicated with the inside of the foot support clamping seat are arranged on two sides of the foot support clamping seat; the spring is collected and arranged in the foot support clamping seat through the spring mounting position; the spring mounting position is communicated with the long limiting groove. When the spring pushes down at the foot support card, deformation is produced, and when the foot support rotates to the assigned position, the foot support card passes through the restoring force of spring for the foot holds in the palm card top card income go up draw-in groove or draw-in groove down.

In a further technical scheme, the foot support clamping piece is arranged on the spring.

In a further technical scheme, the fixed rod and the telescopic rod are mutually fixed through the foot support connecting piece. Through being connected of dead lever and rotating-structure, realize being connected of telescopic link and rotating-structure.

In a further technical scheme, the two sides of the rotating structure are reserved with fixing positions corresponding to the foot support connecting pieces. The accurate installation agrees with each other, and is more pleasing to the eye.

Known through foretell technical scheme, compare with prior art, the utility model discloses following beneficial technological effect has: the foot support can rotate relative to the telescopic rod through the rotating structure, a rest space is provided for a user when the foot support is unfolded, and the work is not influenced after the foot support is stored; the pulling foot holds in the palm the switch and makes the foot hold in the palm and can follow the expansion state and switch into down the state of turning over, simple structure, and the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of the foot rest structure of the present invention in an expanded state.

Fig. 2 is an exploded view of the foot rest structure of the present invention in another angle of the unfolded state.

Fig. 3 is a structural schematic diagram of the relative office chair of the present invention in a downward-turning state.

Fig. 4 is a structural schematic diagram of the relative office chair of the present invention in an unfolded state.

Fig. 5 is a schematic structural view of the foot rest switch of the present invention.

Fig. 6 is a schematic structural view of the footrest clamping base of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams each illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention. In the description of the present application, it is to be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

Please refer to the foot rest structure of the office chair shown in fig. 1-6, which comprises a foot rest 1 and symmetrically arranged telescopic rods 2; the telescopic rods 2 at the two sides are connected through a fixed rod 3; a rotation limiting member 310 with a cylindrical structure is fixedly arranged on the fixed rod 3, and the rotation limiting member 310 is provided with an upper clamping groove 311 and a lower clamping groove 312 opposite to the upper clamping groove 311 in direction; the bottom of the foot support 1 is provided with a rotating structure 4; the fixed rod 3 is fixed inside the rotating structure 4 to realize the connection between the foot support 1 and the telescopic rod 2; a foot support card 7 which can move up and down through a spring 5 and a foot support switch 6 is arranged in the rotating structure 4; the foot rest 1 has an unfolding state that the top end part of the foot rest card 7 is clamped into the upper clamping groove 311 of the rotation limiting part 310 and a downward turning state that the foot rest card 7 is clamped into the lower clamping groove 312 of the rotation limiting part 310; the foot support switch 6 is pulled, the foot support card 7 is partially pressed down by the foot support switch 6, the foot support card 7 is separated from the upper clamping groove 311 or the lower clamping groove 312, the rotation limiting part 310 is pressed on the foot support card 7, and the foot support 1 can rotate around the fixed rod 3 at will, so that the switching between the unfolding state and the downward turning state is realized.

The rotating structure 4 is formed with a mounting cavity 401 for mounting the fixing rod 3, a mounting position 402 for engaging with the rotation limiting member 310, and a switch mounting position 403 for mounting the footswitch 6.

The rotating structure 4 comprises a foot support clamping seat 410 arranged at the bottom of the foot support 1 and a foot support clamping seat cover 420 detachably arranged on the foot support clamping seat 410, the foot support clamping seat 410 and the foot support clamping seat cover 420 can be connected through a locking screw or a buckle, and the embodiment adopts a mode of locking screws for fixing; the foot support clamping seat 410 and the foot support clamping seat cover 420 are covered with each other to form the mounting cavity 401, the mounting position 402 and the switch mounting position 403, wherein the fixing rod 3 and the rotation limiting member 310 are completely wrapped by the rotating structure 4, and the foot support switch 6 partially extends into the rotating structure 4 and partially is located outside the rotating structure 4.

The foot support clamping seat 410 is provided with the long limiting groove 411, and the foot support card 7 is transversely inserted into the long limiting groove 411; spring mounting positions 412 communicated with the inside of the foot support clamping seat 410 are formed on two sides of the foot support clamping seat 410; the spring 5 is collected and installed in the foot support clamping seat 410 through the spring installation position 412, the spring installation position 412 is communicated with the long limiting groove 411 and is contacted with two ends of the foot support clamping piece 7, and when the foot support clamping piece 7 is stressed, the spring 5 can deform.

The foot support clamping seat 410 and the foot support clamping seat cover 420 are made of hard plastic materials, have the characteristics of light weight, low cost, no rustiness and the like, and can not be abraded and frequently replaced after being used for a long time; the method has the advantages of easy processing technology, simple engineering, small error and high matching degree by using a standard die for production.

Referring to fig. 5, the footrest switch 6 is installed in the middle of the rotating structure 4, and a part of the footrest switch is located in the rotating structure 4 and a part of the footrest switch extends out of the rotating structure 4; the foot rest switch 6 comprises a switch main body 610, a rotating shaft 620 and a contact part 630 for pressing the middle part of the foot rest card 7, wherein the rotating shaft 620 is positioned in the rotating structure 4 at the contact part 630, and the switch main body 610 is exposed out of the rotating structure 4; the switch main body 610, the rotating shaft 620 and the contact portion 630 are of an integrally formed structure; the rotating shaft 620 is installed on the platform between the switch installation position 403 and the elongated limiting groove 411, and is limited by the foot support clamping seat 410 and the foot support clamping seat cover 420.

The fixing rod 3 is a cylindrical structure, and the two rotation limiting members 310 are symmetrically distributed on the fixing rod 3; the rotation limiting member 310 is a cylindrical structure, and is provided with an upper clamping groove 311 and a lower clamping groove 312 with opposite opening directions, and the outer wall of the rotation limiting member 310 can be used as a guide surface to guide the foot supporting card 7 and accurately clamp the foot supporting card into the upper clamping groove 311 or the lower clamping groove 312.

The telescopic rod 2 is formed by sleeving a plurality of sections of rod bodies, one end of the telescopic rod 2 is connected with the bottom of the office chair, and the other end of the telescopic rod 2 is fixedly connected with a fixed rod 3 through a foot support connecting piece 210; the foot holds in the palm connecting piece 210 can be through threaded connection or lock screw with telescopic link 2 and dead lever 3 be connected, further hold in the palm 1 with telescopic link 2 and foot for foot holds in the palm 1 and can stretch out and draw back or accomodate.

The two sides of the rotating structure 4 are reserved with fixing positions 404 corresponding to the foot support connecting pieces 210. The installation is convenient and accurate, and the appearance is more attractive.

The working principle of the present invention is further described below:

when the foot rest 1 is in a downward turning state, the top end of the foot rest card 7 is clamped into the lower clamping groove 312; when the card is in the unfolded state, the top end of the leg holding card 7 is clamped into the upper clamping groove 311; when the foot rest 1 is switched to an unfolded state from a downward turning state, the switch main body 610 of the foot rest switch 6 is pulled, the contact part 630 presses the part of the foot rest card 7 towards the inside of the foot rest card seat 410, so that the top end of the foot rest card 7 is separated from the lower clamping groove 312, meanwhile, the spring 5 below the foot rest card 7 deforms, a force for extruding the rotating limiting part 310 is applied to the foot rest card 7, the foot rest card 7 is subjected to a restoring force applied by the spring 5 and the pressure for rotating the limiting part 310, so that the top end of the foot rest card 7 is tightly attached to and rotates along the outer wall of the rotating limiting part 310, after the top end of the foot rest card 7 rotates to the upper clamping groove 311, the top end of the foot rest card 7 is directly clamped into the upper clamping groove 311, the telescopic rod 2 and the fixed rod 3 support the foot rest 1, and the foot rest 1 is in the unfolded state; the unfolded state is switched to the downward-turning state, that is, the card 7 is held by the foot and rotated from the upper card slot 311 to the lower card slot 312.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The foot of office chair holds in palm structure, its characterized in that: comprises a foot support (1) and symmetrically arranged telescopic rods (2); the telescopic rods (2) at the two sides are connected through a fixed rod (3); a rotation limiting piece (310) with a cylindrical structure is fixedly arranged on the fixed rod (3), and the rotation limiting piece (310) is provided with an upper clamping groove (311) and a lower clamping groove (312) in the direction opposite to that of the upper clamping groove (311);

the bottom of the foot support (1) is provided with a rotating structure (4); the fixed rod (3) is fixed inside the rotating structure (4) to realize the connection between the foot support (1) and the telescopic rod (2); a foot support clamping piece (7) which can move up and down through a spring (5) and a foot support switch (6) is arranged in the rotating structure (4);

the foot support (1) has an expansion state that the top end part of the foot support card (7) is clamped into the upper clamping groove (311) of the rotation limiting part (310) and a downward turning state that the foot support card (7) is clamped into the lower clamping groove (312) of the rotation limiting part (310); the foot holds in the palm switch (6) of pulling, foot holds in the palm switch (6) part and pushes down foot and holds in the palm card (7), and foot holds in the palm card (7) and breaks away from last draw-in groove (311) or draw-in groove (312) down, rotates locating part (310) and presses on foot holds in the palm card (7), and foot holds in the palm (1) and can rotate wantonly around dead lever (3), realizes the switching of expansion state and the state of turning over down.

2. An office chair foot rest structure according to claim 1, wherein: a mounting cavity (401) for mounting the fixing rod (3), a mounting position (402) matched with the rotation limiting part (310) and a switch mounting position (403) for mounting the foot rest switch (6) are formed in the rotating structure (4); the rotating structure (4) comprises a foot support clamping seat (410) and a foot support clamping seat cover (420) which are mutually interlocked and connected through screws or buckles; the foot support clamping seat (410) is provided with a long limiting groove (411).

3. An office chair foot rest structure according to claim 2, wherein: the foot rest switch (6) comprises a switch main body (610), a rotating shaft (620) and a contact part (630) for pressing the middle part of the foot rest card (7); the rotating shaft (620) is arranged on a platform between the switch installation position (403) and the long limiting groove (411).

4. An office chair foot rest structure according to claim 3, wherein: spring mounting positions (412) communicated with the inside of the foot support clamping seat (410) are formed in two sides of the foot support clamping seat (410); the spring (5) is collected and arranged in the foot support clamping seat (410) through a spring mounting position (412); the spring mounting position (412) is communicated with the long limiting groove (411).

5. An office chair foot rest structure as in claim 3, wherein: the foot support clamping piece (7) is arranged on the spring (5).

6. An office chair foot rest structure according to claim 1, wherein: the fixed rod (3) and the telescopic rod (2) are mutually fixed through a foot support connecting piece (210).

7. An office chair foot rest structure as in claim 6, wherein: and fixing positions (404) are reserved on two sides of the rotating structure (4) corresponding to the foot support connecting pieces (210).