CN209818458U

CN209818458U - Height-adjusting positioning device for desk and chair

Info

Publication number: CN209818458U
Application number: CN201822204760.0U
Authority: CN
Inventors: 李水亮; 黄玮
Original assignee: Yu Jia Education Equipment Group Co Ltd
Current assignee: Yu Jia Education Equipment Group Co Ltd
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2019-12-20
Anticipated expiration: 2028-12-26

Abstract

The utility model discloses a desk chair height adjustment positioner, including fixed disk, lower foot rest, base and last foot rest, the fixed disk bottom is equipped with the base, the base bottom is equipped with the lower foot rest, the fixed disk is equipped with a plurality of fixed orifices, the left and right sides is equipped with the mount respectively in the fixed orifices, be equipped with the fixed block between the mount, be equipped with powerful spring in the fixed block, the fixed orifices left side is equipped with positioner, positioner left end central authorities are equipped with the bolt, the bolt right side is equipped with the double-screw bolt, the double-screw bolt top is equipped with the ejector pin. The utility model can not only adjust the height of the table and chair, but also adjust the forward inclination and the backward inclination of the table and chair, and is suitable for people with different body types; through the cooperation of bolt and double-screw bolt, the position of adjustable ejector pin, and then change the shape of fixed block to realize fixing or dismantling of foot rest, its simple structure, location is swift, accurate, and application range is wide.

Description

Height-adjusting positioning device for desk and chair

Technical Field

The utility model relates to a desk chair spare part field specifically is a desk chair height adjustment positioner.

Background

Many common appliances in daily life are: among the pipe fitting framework of clothes hanger, hoist, body-building apparatus, bicycle, study table chair, teaching are with table chair, multi-purpose to the device of adjustment height and location, current regulation structure is too complicated, and the cost of manufacture is high and the operation is time-consuming, still fixes pipe support structure with the mode in spring leaf card hole a bit, and is too simple, easily arouses not hard up to lead to connecting insecure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desk chair adjustment height positioning device, its simple structure, the operation of being convenient for to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a desk chair height adjustment positioner, includes fixed disk, lower foot rest, base and goes up the foot rest, the fixed disk bottom is equipped with the base, the base bottom is equipped with the foot rest down, the fixed disk is equipped with a plurality of fixed orifices, the left and right sides is equipped with the mount respectively in the fixed orifices, be equipped with the fixed block between the mount, be equipped with powerful spring in the fixed block, the fixed orifices left side is equipped with positioner, positioner left end central authorities are equipped with the bolt, the bolt right side is equipped with the double-screw bolt, the double-screw bolt top is equipped with the ejector pin.

Preferably, an opening is formed in the left side of the fixing block corresponding to the ejector rod.

Preferably, the bottom end of the upper foot stand is provided with a support, and the top end of the support is provided with a fixing ring.

Preferably, a fixing seat is arranged on the periphery of the stud.

Preferably, the right side of the fixed seat is provided with a buffer layer.

Preferably, the periphery of the ejector rod is provided with a connecting sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: the fixing disc of the utility model is provided with a plurality of fixing holes, which not only can adjust the height of the table and chair, but also can finely adjust the forward inclination and the backward inclination of the table and chair, and is suitable for people with different body types; the positioning device is matched with the bolt and the stud, the position of the ejector rod can be adjusted, and then the shape of the fixing block is changed, so that the fixing or dismounting of the upper foot rest is realized.

Drawings

FIG. 1 is a front view of a height adjusting and positioning device for desks and chairs according to the present invention;

FIG. 2 is a front view of the back of the height adjusting and positioning device of a desk and chair of the present invention;

FIG. 3 is a first schematic view of a connection structure of a height adjusting and positioning device for desks and chairs of the present invention;

FIG. 4 is a schematic view of a second connection structure of the height adjusting and positioning device for desks and chairs of the present invention;

fig. 5 is a schematic view of the internal structure of the fixing hole of the height adjusting and positioning device for desks and chairs of the present invention.

In the figure: 1-fixed disc, 11-fixed hole, 12-fixed block, 13-strong spring, 14-fixed frame, 2-lower foot rest, 3-upper foot rest, 31-support, 32-fixed ring, 4-base, 5-positioning device, 51-bolt, 52-stud, 53-fixed seat, 54-buffer layer, 55-connecting sleeve and 56-ejector 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.

Please refer to fig. 1-5, in an embodiment of the present invention, a device for positioning height adjustment of a desk and chair, includes a fixed disk 1, a lower foot rest 2, a base 4 and an upper foot rest 3, the bottom end of the fixed disk 1 is provided with the base 4, the bottom end of the base 4 is provided with the lower foot rest 2, the fixed disk 1 is provided with a plurality of fixing holes 11, the left and right sides of the fixing holes 11 are respectively provided with a fixing frame 14, a fixed block 12 is arranged between the fixing frames 14, a strong spring 13 is arranged in the fixed block 12, the left side of the fixing holes 11 is provided with a positioning device 5, the left center of the positioning device 5 is provided with a bolt 51.

An opening is arranged at the left side of the fixed block 12 corresponding to the ejector rod 56; the bottom end of the upper foot rest 3 is provided with a bracket 31, and the top end of the bracket 31 is provided with a fixing ring 32; a fixed seat 53 is arranged at the periphery of the stud 52; the right side of the fixed seat 53 is provided with a buffer layer 54; the periphery of the top rod 56 is provided with a connecting sleeve 55.

The working principle is as follows: use the utility model relates to a desk chair adjustment height positioning device, earlier put into appointed fixed orifices 11 with foot rest 3, both ends about fixed block 12 are arranged in to solid fixed ring 32, utilize bolt 51 precession double-screw bolt 52 in the positioner 5, fill in fixed block 12 left side with ejector pin 56, fixed block 12 is to extending in upper and lower both ends promptly, get into solid fixed ring 32 in, fix foot rest 3 promptly, can accomplish being connected between foot rest 3 and the lower foot rest 2 on the desk chair, when the height of desk chair is changed to needs, reverse rotation bolt 51, double-screw bolt 52 is reverse screw-out promptly, ejector pin 56 withdraws from in fixed block 12 promptly, fixed block 12 reconversion under the contractile action of powerful spring 13, can take out solid fixed ring 32, it can to select the assigned position to install again. The utility model can not only adjust the height of the desk and chair, but also adjust the forward inclination and the backward arrangement of the desk and chair support.

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. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a desk chair height adjustment positioner, includes fixed disk (1), lower foot rest (2), base (4) and goes up foot rest (3), its characterized in that, fixed disk (1) bottom is equipped with base (4), base (4) bottom is equipped with down foot rest (2), fixed disk (1) is equipped with a plurality of fixed orifices (11), the left and right sides is equipped with mount (14) respectively in fixed orifices (11), be equipped with fixed block (12) between mount (14), be equipped with powerful spring (13) in fixed block (12), fixed orifices (11) left side is equipped with positioner (5), positioner (5) left end central authorities are equipped with bolt (51), bolt (51) right side is equipped with double-screw bolt (52), double-screw bolt (52) top is equipped with ejector pin (56).

2. The device for adjusting and positioning the height of the desk and chair as claimed in claim 1, wherein an opening is arranged at the left side of the fixed block (12) corresponding to the top rod (56).

3. The device for adjusting the height and positioning the desk and chair as claimed in claim 1, wherein a bracket (31) is arranged at the bottom end of the upper foot stool (3), and a fixing ring (32) is arranged at the top end of the bracket (31).

4. The device for adjusting the height and positioning the desk and chair as claimed in claim 1, wherein the stud (52) is provided with a fixed seat (53) at the periphery.

5. The device for adjusting and positioning the height of the desk and chair as claimed in claim 4, wherein a buffer layer (54) is arranged at the right side of the fixed seat (53).

6. The device for adjusting and positioning the height of the desk and chair as claimed in claim 1, wherein the ejector rod (56) is provided with a connecting sleeve (55) at the periphery.