CN219206241U

CN219206241U - Desk and chair height adjusting structure and adjusting desk and chair

Info

Publication number: CN219206241U
Application number: CN202222068876.2U
Authority: CN
Inventors: 童丽萍
Original assignee: Zhejiang Zhongteng Science And Education Equipment Co ltd
Current assignee: Zhejiang Zhongteng Science And Education Equipment Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-20
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a desk and chair height adjusting structure and an adjusting desk and chair, which comprise a seat plate, a backup plate, a U-shaped pull rod and a plurality of supporting bottom posts, wherein first upright posts are vertically arranged on the supporting bottom posts, second upright posts are vertically arranged at the upper ends of the first upright posts through hinges, communicated sliding grooves are vertically arranged on one sides of the first upright posts and the second upright posts, sliding blocks are slidably arranged in the sliding grooves, fixing plates are arranged at one ends of the sliding blocks, the seat plate is fixed on the fixing plates through bolts, positioning posts are arranged on the opposite side surfaces of the second upright posts, elastic pieces are arranged on the opposite side surfaces of the supporting bottom posts, positioning openings are formed in the elastic pieces, mounting grooves are formed in one ends of the supporting bottom posts, and universal wheels are arranged in the mounting grooves. The utility model has simple structure, can adjust the height of the seat board according to the height of students, increases the adaptability, can vibrate, reduces the volume, can rapidly pull the device through the universal wheels and the U-shaped pull rod, and greatly increases the convenience.

Description

Desk and chair height adjusting structure and adjusting desk and chair

Technical Field

The utility model relates to the technical field of desks and chairs, in particular to a desk and chair height adjusting structure and an adjusting desk and chair.

Background

Among many teaching aids, a desk and a chair are one of important daily teaching aids, and have important positions in teaching aid design, and are always valued by designers.

At present, the desk and chair has a simple structure, the height of the upper seat plate of the desk and chair cannot be adjusted according to the height of students, the use discomfort is increased, and the desk and chair cannot be folded, so that the size of the desk and chair is large, and the desk and chair is inconvenient to carry and move.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the desk and chair height adjusting structure which can adjust the height of the seat board according to the height of students, increases the adaptability, enables the second upright post to be folded, enables the seat board to move downwards, greatly reduces the volume, and can quickly move the desk and chair height adjusting structure and adjust the desk and chair through the universal wheels and the U-shaped pull rod.

The utility model is realized by the following technical scheme: the utility model provides a desk chair height adjustment structure, including bedplate, backup plate, U type pull rod and a plurality of support sill post, all install first stand perpendicularly on the support sill post, the second stand is all installed through the hinge to first stand upper end, one side of first stand and second stand all is equipped with the spout of intercommunication perpendicularly, all slidable mounting has the slider in the spout, the fixed plate is all installed to the one end of slider, the bedplate passes through the bolt fastening on the fixed plate, the backup plate is installed in many second stand upper ends, all install the reference column on the opposite side of second stand, all install the shell fragment on the opposite side of support sill post, all be equipped with the locating slot on the shell fragment, the inside of second stand all is equipped with the cavity, the top surface of cavity all is equipped with the shaft hole, the both ends of U type pull rod all pass in the shaft hole inserts the cavity, and all install the stopper, the diameter of stopper all is greater than the internal diameter in shaft hole, all be equipped with the universal wheel in the mounting groove, all be equipped with the slot on the internal face of mounting groove, the outside support of universal wheel just installs the inserted bar to slot department, all install the shell fragment in the jack, all insert thread in the slot all, all connect thread connection slot in the jack.

As the preferable technical scheme, all be equipped with first screw hole on the slider, all be equipped with a plurality of second screw holes on the internal face of spout, equal threaded connection has first hand screw bolt in the first screw hole, and the equal threaded connection of one end of first hand screw bolt is in the second screw hole that corresponds.

As the preferred technical scheme, all install the locating plate on the lateral surface of first stand, all be equipped with the third screw hole on the locating plate, just to being equipped with the fourth screw hole in third screw hole department on the lateral surface of second stand, all threaded connection has the second hand to twist the bolt in third screw hole and the fourth screw hole.

As the preferable technical scheme, all cover has the spring on the inserted bar, and spring one end is all installed on the internal face of mounting groove, and the other end is all installed on the support of universal wheel, and the spring all is in compression state.

As the preferable technical scheme, the cross sections of the sliding groove and the sliding block are arranged in a trapezoid structure.

As the preferable technical scheme, the elastic sheets are plastic elastic sheets or metal elastic sheets.

An adjustable desk and chair comprises the desk and chair height adjusting structure.

The beneficial effects of the utility model are as follows: the utility model has simple structure, can adjust the height of the seat board according to the height of students, increases the adaptability, can move to the bottom, can fold the second upright post, can press the second upright post above the seat board through the elastic sheet, ensures the stability after folding, reduces the volume, can rapidly pull the device through the universal wheels and the U-shaped pull rod, and greatly increases the convenience.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the mounting structure of the first and second posts of the present utility model;

FIG. 3 is a schematic view of the structure of the present utility model after folding;

fig. 4 is a schematic view of the structure of the present utility model during towing.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

As shown in figures 1 and 2, the height adjusting structure of the desk and chair comprises a seat plate 2, a backup plate 3, a U-shaped pull rod 24 and a plurality of supporting bottom posts 1, wherein the supporting bottom posts 1 are vertically provided with first upright posts 4, the upper ends of the first upright posts 4 are respectively provided with second upright posts 5 through hinges, one sides of the first upright posts 4 and the second upright posts 5 are respectively vertically provided with a communicated chute 21, the chute 21 is respectively and slidably provided with a sliding block 6, one end of each sliding block 6 is respectively provided with a fixed plate 7, the seat plate 2 is fixed on the fixed plate 7 through bolts, the backup plate 3 is arranged at the upper ends of the plurality of second upright posts 5, the opposite side surfaces of the second upright posts 5 are respectively provided with a positioning post 26, the opposite side surfaces of the supporting bottom posts 1 are respectively provided with a spring piece 8, the shell fragment 8 is last all to be equipped with locating hole 9, the second stand 5 the inside all is equipped with cavity 25, the top surface of cavity 25 all is equipped with the shaft hole, the both ends of U type pull rod 24 all pass the shaft hole and insert in the cavity, and all install stopper 23, stopper 23's diameter all is greater than the internal diameter in shaft hole, the one end of supporting sill post 1 all is equipped with mounting groove 14, all be equipped with universal wheel 15 in the mounting groove 14, all be equipped with slot 11 on the internal face of mounting groove 14, the outside support of universal wheel 15 is just to all installing inserted bar 12 in slot department, all insert in slot 11 in bar 12 one end, equal threaded connection has sealing plug 16 in the opening of mounting groove 14, wherein, the hinge sets up in the both sides of spout, thereby do not influence the reciprocates of slider.

In this embodiment, the sliding blocks 6 are provided with first screw holes, the inner wall surfaces of the sliding grooves 21 are provided with a plurality of second screw holes 19, the first screw holes are connected with first hand-screwed bolts 22 in a threaded manner, and one ends of the first hand-screwed bolts 22 are connected with corresponding second screw holes 19 in a threaded manner.

In this embodiment, the locating plate 17 is installed on the lateral surface of the first upright 4, the locating plate 17 is provided with a third screw hole, the lateral surface of the second upright is provided with a fourth screw hole opposite to the third screw hole, and the third screw hole and the fourth screw hole are connected with a second hand-screwed bolt 18 in a threaded manner.

In this embodiment, the inserting rods 12 are all sleeved with springs 13, one ends of the springs 13 are all installed on the inner wall surface of the installation groove 14, the other ends of the springs 13 are all installed on the support of the universal wheel 15, and the springs 13 are all in a compressed state.

In this embodiment, the cross sections of the sliding groove 21 and the sliding block 6 are all in a trapezoid structure, so that the sliding block is prevented from being separated from the sliding groove, and the sliding block can only move up and down along the sliding groove.

In this embodiment, the elastic sheet 8 is a plastic elastic sheet or a metal elastic sheet, so that the elastic sheet has elasticity and can sleeve the positioning column.

When the height is adjusted, the first hand-screwed bolt is screwed out of the second screw hole, at this time, the seat board can move up and down along the sliding groove, after moving to a proper position, the first hand-screwed bolt is rotated again, so that the first hand-screwed bolt is connected with the corresponding second screw hole in a threaded manner, the moved seat board is positioned through the first hand-screwed bolt, the seat board can be highly suitable for students with different heights, and the adaptability is greatly improved.

As shown in figure 3, when the desk and chair are not used or are required to be carried, the first hand-screwed bolt can be screwed out from the second screw hole, at the moment, the sliding block can be moved to the bottom of the sliding groove, the seat plate is arranged close to the supporting bottom post, after the seat plate is finished, the second hand-screwed bolt is screwed out from the fourth screw hole, at the moment, the second upright post can be downwards inclined by taking the hinge as a center, when the second upright post is close to the seat plate, the elastic piece can be outwards broken, after the backrest on the second upright post is pressed on the seat plate, the elastic piece is released, and the positioning opening on the elastic piece is sleeved on the positioning post of the second upright post through the elastic property return of the elastic piece, so that the second upright post is connected with the supporting bottom post, and the self-opening is avoided;

as shown in figure 4, when the device needs to move, the sealing plug can be unscrewed, at this time, the universal wheel can be ejected out through the rebound energy of the spring, and the U-shaped pull rod is pulled out outwards, so that the device can be pulled obliquely, the moving convenience is greatly improved, and the buffering effect during moving is improved through the elasticity of the spring.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A desk chair height-adjusting structure is characterized in that: including bedplate (2), backup plate (3), U type pull rod (24) and a plurality of support sill post (1), all install first stand (4) perpendicularly on supporting sill post (1), second stand (5) are all installed through the hinge on first stand (4), one side of first stand (4) and second stand (5) all is equipped with spout (21) of intercommunication perpendicularly, equal slidable mounting has slider (6) in spout (21), fixed plate (7) are all installed to the one end of slider (6), bedplate (2) are fixed in on fixed plate (7) through the bolt, backup plate (3) are installed in many second stand (5) upper ends, all install reference column (26) on the opposite side of second stand (5), all install shell fragment (8) on the opposite side of supporting sill post (1), all be equipped with locating hole (9) on shell fragment (8), the inside all be equipped with cavity (25) of second stand (5), both ends of U type top surface (24) all pass in the cavity of shaft hole, and all be equipped with in the universal wheel (14) of stopper (23), all be equipped with in the shaft hole (14) of all installing in the base (1), the inner wall surface of the mounting groove (14) is provided with a slot (11), the outside bracket of the universal wheel (15) is provided with a plug rod (12) to the slot, one end of the plug rod (12) is inserted into the slot (11), and the opening of the mounting groove (14) is provided with a sealing plug (16) in a threaded connection.

2. The desk and chair height adjustment mechanism of claim 1 wherein: all be equipped with first screw hole on slider (6), all be equipped with a plurality of second screw holes (19) on the internal face of spout (21), all threaded connection has first hand screw bolt (22) in the first screw hole, and the one end of first hand screw bolt (22) is all threaded connection in corresponding second screw hole (19).

3. The desk and chair height adjustment mechanism of claim 1 wherein: the locating plates (17) are arranged on the outer side faces of the first upright posts (4), third screw holes are formed in the locating plates (17), fourth screw holes are formed in the outer side faces of the second upright posts, right opposite to the third screw holes, and second hand-screwed bolts (18) are connected in the third screw holes and the fourth screw holes in a threaded mode.

4. The desk and chair height adjustment mechanism of claim 1 wherein: the inserted link (12) is sleeved with springs (13), one ends of the springs (13) are mounted on the inner wall surface of the mounting groove (14), the other ends of the springs are mounted on the support of the universal wheel (15), and the springs (13) are in a compressed state.

5. The desk and chair height adjustment mechanism of claim 1 wherein: the sections of the sliding groove (21) and the sliding block (6) are arranged in a trapezoid structure.

6. The desk and chair height adjustment mechanism of claim 1 wherein: the spring plates (8) are plastic spring plates or metal spring plates.

7. An adjust desk chair which characterized in that: a desk and chair height adjustment structure comprising the desk and chair as claimed in any one of claims 1 to 6.