CN218008941U - Foot support structure of student chair - Google Patents

Abstract

The utility model discloses a foot support structure of a student chair, which comprises a foot support, a shaft lever and a telescopic structure; two sides of the foot support are provided with first rotating clamping pieces; two ends of the shaft lever penetrate through the first rotating clamping pieces on the two sides to be inserted into the telescopic structure, and the shaft lever is detachably provided with a limiting column; a second rotary clamping piece corresponding to the first rotary clamping piece is independently arranged; the first rotary clamping piece and the second rotary clamping piece are covered to form a limiting cavity and a mounting channel; the foot support rotates relative to the shaft lever, the foot support is turned upwards to be opened or turned downwards to be retracted, the limiting column limits the rotation of the limiting cavity, and the rotation range of the foot support is controlled; the telescopic structure is provided with an installation structure. Through the mutual matching of the first rotary clamping piece, the limiting column and the second rotary clamping piece, the foot support can be quickly turned outwards to unfold or turned inwards to retract; after the use, the foot rest can be accommodated in the chair seat, so that the normal learning is not influenced; simple structure and simple operation.

Description

Foot support structure of student chair

Technical Field

The utility model relates to a technical field of student's chair, more specifically the foot that says so relates to a student's chair holds in palm structure.

Background

Along with the continuous attention and development of education institutions in China, the tools used by students are also obviously improved, wherein the student chair is one of the main tools for modern students to study, and the requirements are increased, so that the styles and the types of the student chair are more and more abundant; most students in middle and primary schools solve the problem of noon break directly in a classroom, student chairs configured in schools do not have noon break conditions, legs and feet cannot be unfolded in the noon break process, the noon break quality of the students in middle and primary schools is poor, and the body health is affected; therefore, there is a need for a foot rest structure for a student chair.

SUMMERY OF THE UTILITY MODEL

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

In order to achieve the above purpose, the utility model adopts the following technical scheme: comprises a foot support, a shaft lever and a telescopic structure; two sides of the foot support are provided with first rotating clamping pieces; two ends of the shaft lever penetrate through the first rotating clamping pieces on the two sides to be inserted into the telescopic structure, and the shaft lever is detachably provided with a limiting column; a second rotary clamping piece corresponding to the first rotary clamping piece is independently arranged; the first rotating clamping piece and the second rotating clamping piece are covered to form a limiting cavity and an installation channel; the foot support rotates relative to the shaft rod, the foot support is turned upwards to be opened or turned downwards to be retracted, the limiting column limits the rotation of the limiting cavity, and the rotation range of the foot support is controlled; the telescopic structure is provided with an installation structure. Through the mutual matching of the first rotating clamping piece, the limiting column and the second rotating clamping piece, the foot support can be rapidly turned outwards to be unfolded or turned inwards to be retracted; the student chair is externally provided with the foot support structure, a tool for rest is provided for students, and the extending distance of the foot support can be adjusted through the telescopic structure so as to meet the requirements of different heights of the students, or the stretching distance of the foot support is shortened and recovered to the bottom of the chair seat, so that the learning is not influenced; simple structure, strong practicability, convenient use and simple operation.

In a further technical scheme, a connecting arm is arranged on the back of the foot support, and the tail end of the connecting arm is provided with the first rotary clamping piece; the first rotating clamping piece is provided with a first limiting groove, and the second rotating clamping piece is correspondingly provided with a second limiting groove; the first limiting groove and the second limiting groove form a limiting cavity together. When the foot holds in the palm when rotating for the axostylus axostyle, spacing post is motionless, and spacing cavity rotates along with the rotation of foot support, and spacing cavity receives the restriction of spacing post, has avoided the excessive opening of foot support, and when spacing post and spacing cavity contacted simultaneously, spacing post gave certain supporting role.

In a further technical scheme, the side face of the second rotary clamping piece is provided with a clamping protrusion, the first rotary clamping piece is provided with a clamping groove corresponding to the clamping protrusion, the first rotary clamping piece and the second rotary clamping piece are connected and positioned in a buckling mode, the second rotary clamping piece can be quickly positioned and installed on the first rotary clamping piece, and the second rotary clamping piece can be quickly detached when needed.

In a further technical scheme, the first rotary clamping piece is provided with a shaft hole for the shaft rod to pass through. The shaft lever is used as a rotating shaft, so that the foot support can rotate axially relative to the shaft lever.

In a further technical scheme, the telescopic structure comprises a telescopic rod and a connecting piece, and the telescopic rod and the connecting piece are mutually inserted; first screw hole and insertion groove have been seted up to the connecting piece, first screw hole and insertion groove intercommunication. The telescopic structure can prolong the pulling distance of the foot rest so as to be suitable for students with different heights to use; the two ends of the shaft rod are locked in the connecting piece through the first screw holes, so that the telescopic structure and the shaft rod are fixedly and indirectly connected through the connecting piece to form a relatively fixed state.

In a further technical scheme, the shaft lever is provided with a second screw hole corresponding to the first screw hole; the telescopic rod is provided with a mounting structure. The shaft lever and the telescopic structure can be fixed mutually through the first screw hole and the second screw hole, and the shaft lever cannot rotate; the whole foot support structure can be arranged under the chair seat of the student chair through the mounting structure.

In a further technical scheme, the foot support is designed according to the line type of the foot. The foot support conforms to the line type of the foot, so that the foot can be effectively relaxed.

Known through foretell technical scheme, compare with prior art, the utility model discloses following beneficial technological effect has: through the mutual matching of the first rotary clamping piece, the limiting column and the second rotary clamping piece, the foot support can be quickly turned outwards to unfold or turned inwards to retract; the leg support structure is arranged outside the student chair, so that a tool for rest is provided for students, and the extending distance of the leg support can be adjusted through the telescopic structure so as to meet the requirements of the students with different heights, or the leg support structure is shortened and recycled to the bottom of the chair seat, so that the learning is not influenced; simple structure, strong practicability, convenient use and simple operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions 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 a front explosion diagram of the present invention.

Fig. 2 is a reverse side exploded view of the present invention.

Fig. 3 is a reverse side exploded view of the present invention from another angle.

Fig. 4 is a schematic structural view of the second rotary fastener of the present invention.

Fig. 5 is an enlarged view of the position a of the present invention.

Fig. 6 is a structural schematic diagram of the outward turning state of the student chair of the utility model.

Fig. 7 is a schematic view of the structure of the utility model combined with the inward turning state of the student chair.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention 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, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 the present application can be understood in a specific case by those of ordinary skill in the art.

Please refer to fig. 1-5, which show a leg support structure of a student chair, comprising a leg support 1, a shaft rod 2 and a telescopic structure 3; two sides of the foot support 1 are provided with first rotary clamping pieces 110; two ends of the shaft lever 2 penetrate through the first rotating clamping pieces 110 on two sides to be inserted into the telescopic structure 3, and the shaft lever 2 is detachably provided with a limiting column 210; a second rotary fastener 4 corresponding to the first rotary fastener 110 is independently provided; the first rotary clamping piece 110 and the second rotary clamping piece 4 are covered to form a limiting cavity; the foot support 1 rotates relative to the shaft lever 2, the foot support 1 is turned upwards to be opened or turned downwards to be retracted, the limiting column 210 limits the rotation of the limiting cavity, and the rotation range of the foot support 1 is controlled; the telescopic structure is provided with a mounting structure 5.

The back of the foot rest 1 is provided with a connecting arm 120, and the connecting arm 120 and the foot rest 1 are of an integrally formed structure; the first rotary fastener 110 is arranged at the tail end of the connecting arm 120; the first rotary clamping piece 110 is inwards sunk to form a first limiting groove 111, the second rotary clamping piece 4 is provided with a second limiting groove 401 corresponding to the first limiting groove 111, the first limiting groove 111 and the second limiting groove 401 jointly form a limiting cavity and an installation channel, the depth of the limiting cavity is matched with the length of the limiting column 210, the limiting cavity rotates along with the limiting groove in the rotation process of the foot rest 1, but the limiting cavity is limited by the limiting column 210, so that excessive rotation of the foot rest 1 is avoided, and the foot rest 1 can be kept in an unfolded or retracted state.

First rotatory fastener 110 with the rotatory fastener 4 of second between the mode reciprocal anchorage through the buckle connection, the side of the rotatory fastener 4 of second be provided with a plurality of card arcs 402, simultaneously first rotatory fastener 110 correspond card arcs 402 are provided with draw-in groove 112, first rotatory fastener 110 with the rotatory fastener 4 buckle of second be connected the location, after card arcs 402 go into draw-in groove 112, first mounting hole 113 that first rotatory fastener 110 seted up and second mounting hole 403 one-to-one that the rotatory fastener 4 of second seted up, rethread lock screw's mode is fixed first rotatory fastener 110 with the rotatory fastener 4 of second is locked, is favorable to first rotatory fastener 110 with the quick relative lid of the rotatory fastener 4 of second closes the back, first spacing groove 111 with second spacing groove 401 can accurately correspond, can not influence the rotation of foot rest 1 because of the dislocation, also can fast operation when dismantling moreover.

Two groups of connecting arms 120 are arranged, two groups of corresponding first rotating clamping pieces 110, second rotating clamping pieces 4 and limiting columns 210 are also arranged, and the two groups of connecting arms 120 and the two groups of first rotating clamping pieces 110 are symmetrically distributed; the first rotating clamping piece 110 is provided with a shaft hole 114 for the shaft rod 2 to pass through, the shaft rod 2 sequentially passes through two groups of first rotating clamping pieces 110 at one end of the foot support 1 and is connected with the limiting column 210 through a screw, the limiting column 210 is provided with a threaded part, and the limiting column 210 is installed at the inner side close to the first rotating clamping piece 110 to realize the installation of the limiting column 210 and the shaft rod 2.

The telescopic structure 3 comprises a telescopic rod 310 and a connecting piece 320, and after the telescopic rod 310 and the connecting piece 320 are mutually inserted, the telescopic rod 310 and the connecting piece 320 are locked and fixed in a screw locking manner; the connecting member 320 is provided with a first screw hole 321 and an insertion groove 322, the first screw hole 321 is communicated with the insertion groove 322, after the shaft rod 2 is inserted into the insertion groove 322 of the connecting member 320, the tail end of the shaft rod 2 is abutted against the inner bottom of the insertion groove 322, so that the second screw hole 201 on the shaft rod 2 is aligned with the first screw hole 321 arranged on the connecting member 320, the shaft rod 2 and the connecting member 320 are fixedly locked in a screw locking manner, and indirectly, the shaft rod 2 and the telescopic structure 3 form a relatively fixed state, so that the shaft rod 2 is in a static state and cannot rotate; the telescopic rod 310 is an independent rod body, and meanwhile, a limiting piece is arranged at the tail end of the telescopic rod 310 to prevent the foot rest 1 from being separated from the chair when extending out; the body of rod of telescopic link still is provided with mounting structure 5, and mounting structure 5 through the mode fixed mounting of lock screw in the bottom of student's chair seat support, holds in the palm 1 structural mounting with whole foot through mounting structure 5 under the seat support of student's chair, and the pulling foot holds in the palm 1, and extending structure 3 pulls out for mounting structure 5 to the extension foot holds in the palm 1 the distance that pulls open, uses with the student that accords with different heights.

The foot support 1 is designed to accord with the foot line type; the foot support 1 is designed to accord with the foot line type, so that the foot can be effectively relaxed; the foot support 1, the second rotary clamping piece 4, the connecting piece 320 and the mounting structure 5 can be made of plastic materials or metal materials, and in the embodiment, the leg support is made of plastic materials and has the advantages of low cost and light weight, so that the student chair with the foot support 1 structure cannot be too heavy, and the movement of the student chair is influenced.

Referring to fig. 6-7, the working principle of the present invention will be further described with reference to the student chair:

after the shaft lever 2 sequentially passes through two groups of first rotary clamping pieces 110 from left to right or from right to left from one side of the foot rest 1, after the limiting posts 210 are detachably mounted at positions of two ends of the shaft lever 2 corresponding to limiting cavities, namely mounting channels, the second rotary clamping piece 4 is covered on the first rotary clamping pieces 110 and then fixedly locked on the first rotary clamping pieces 110, parts of two ends of the shaft lever 2 protrude out of the mounting channels, after the protruding parts are inserted into the insertion grooves 322 of the connecting piece 320, the locking screws are fixed in the insertion grooves 322, and the telescopic structure 3 and the shaft lever 2 are in a relatively fixed state; the telescopic structure 3 is provided with an installation structure 5, and the whole foot support structure can be installed on the chair seat of the student chair through the installation structure 5; when the foot holds in the palm 1 when rotating, axostylus axostyle 2 is motionless, and the foot holds in the palm 1 uses axostylus axostyle 2 to carry out the outside upset of axle motion and expand as the axis of rotation, when need not use the foot to hold in the palm 1 time, the foot holds in the palm 1 after inwards overturning and withdraws, pushes flexible structure 3 backward and just can withdraw the foot support 1 under the seat support. The limiting cavity is limited by the limiting column 210, so that the foot support 1 is prevented from excessively rotating, and the effect of supporting the foot support 1 is achieved.

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 (7)

1. The utility model provides a foot of student's chair holds in palm structure which characterized in that: comprises a foot support (1), a shaft lever (2) and a telescopic structure (3); two sides of the foot support (1) are provided with first rotating clamping pieces (110); two ends of the shaft lever (2) penetrate through the first rotary clamping pieces (110) on two sides to be inserted into the telescopic structure (3), and the shaft lever (2) is detachably provided with a limiting column (210); a second rotary clamping piece (4) corresponding to the first rotary clamping piece (110) is independently arranged; the first rotary clamping piece (110) and the second rotary clamping piece (4) are covered to form a limiting cavity and a mounting channel; the foot support (1) rotates relative to the shaft lever (2), the foot support (1) is turned upwards to open or turned downwards to retract, the limiting column (210) limits the rotation of the limiting cavity, and the rotation range of the foot support (1) is controlled; the telescopic structure is provided with a mounting structure (5).

2. The leg rest structure of a student chair according to claim 1, wherein: the back of the foot support (1) is provided with a connecting arm (120), and the tail end of the connecting arm (120) is provided with the first rotating clamping piece (110); the first rotating clamping piece (110) is provided with a first limiting groove (111), and the second rotating clamping piece (4) is correspondingly provided with a second limiting groove (401); the first limiting groove (111) and the second limiting groove (401) form a limiting cavity together.

3. A foot rest structure of a student chair according to claim 2, wherein: the side surface of the second rotary clamping piece (4) is provided with a clamping protrusion (402), the first rotary clamping piece (110) is provided with a clamping groove (112) corresponding to the clamping protrusion (402), and the first rotary clamping piece (110) is connected and positioned with the second rotary clamping piece (4) in a buckling mode.

4. A student chair foot rest structure according to claim 3 wherein: the first rotary clamping piece (110) is provided with a shaft hole (114) through which the shaft rod (2) passes.

5. The leg rest structure of the student chair according to claim 1, wherein: the telescopic structure (3) comprises a telescopic rod (310) and a connecting piece (320), and the telescopic rod (310) and the connecting piece (320) are mutually inserted; the connecting piece (320) is provided with a first screw hole (321) and an insertion groove (322), and the first screw hole (321) is communicated with the insertion groove (322).

6. The leg rest structure of a student chair according to claim 5, wherein: the shaft lever (2) is provided with a second screw hole (201) corresponding to the first screw hole (321); the telescopic rod (310) is provided with a mounting structure (5).

7. The leg rest structure of the student chair according to claim 1, wherein: the foot support (1) is designed according with the line type of the foot.

Images