CN202739329U

CN202739329U - Desk chair leg capable of lifting freely

Info

Publication number: CN202739329U
Application number: CN 201220134992
Authority: CN
Inventors: 李德胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-01
Filing date: 2012-04-01
Publication date: 2013-02-20
Anticipated expiration: 2022-04-01

Abstract

The utility model discloses a desk chair leg capable of lifting freely, in particular to a lifting leg for a desk chair, which belongs to the field of furniture. The desk chair leg comprises a chair leg inner casing, a chair leg outer casing, clamping slots, a clamping pin, a spring clamping sheet, a spring, a positioning pin, a positioning pin hole, a metal fixing casing, a slide bar slot, a slide bar, clamping areas, clamping connectors and a plastic protective casing, wherein the bottom of the chair is connected with the chair leg inner casing of the desk chair leg; the clamping slots are uniformly distributed on the chair leg inner casing equidistantly; a clamping pin is arranged on the root part of the chair leg inner casing; the metal fixing casing is welded on the top of the chair leg outer casing; the positioning pin hole is formed on the metal fixing casing; the spring clamping sheet is connected with the metal fixing casing through the positioning pin and is connected on the positioning pin hole; the spring is installed on the positioning pin; the slide bar slot is formed on the metal fixing casing; the slide bar is arranged between the spring clamping sheet and the metal fixing casing; the two clamping areas are arranged on the two sides of the metal fixing casing respectively; the two clamping connectors are arranged on the two corresponding sides of the plastic protective casing respectively; and the plastic protective casing is buckled with the clamping areas through the clamping connectors and is fixed with the metal fixing casing. The desk chair leg is simple in structure, convenient to use, safe and harmless.

Description

But a kind of desk and chair leg of free lifting

Technical field

But the desk and chair leg of a kind of free lifting of the utility model belongs to field of furniture, particularly relate to a kind of leg of the lifting for desk and chair .

Background technology

The supporting chair of the desk that now student uses can oscilaltion, coordinates student's height to be adjusted.But many pupil chairs will be adjusted and must dismantle screw and carry out the adjustment of one-level one-level, and inconvenient.Simultaneously, due to the problem of material, the chair of not adjusted for a long time, screw can be fixed because oxidation makes the chair pin, can not re-start adjustment.

The utility model content

The purpose of this utility model is to avoid the weak point of existing equipment technology, is used in conjunction with without tool using and provide a kind of, but can easily realizes the highly desk and chair leg of the free lifting of adjusting.

The purpose of this utility model reaches by following measures, and desk and chair leg of the present utility model comprises chair leg inner housing, chair leg shell body, the screens groove, bayonet lock, the Spring Card bit slice, spring, alignment pin, dowel hole, the metal set casing, the slide bar groove, slide bar, the screens district, the screens joint, plastic protection casing, the chair bottom connects the chair leg inner housing part of desk and chair leg, the equidistant screens groove that is uniformly distributed on chair leg inner housing, chair leg inner housing root has bayonet lock, chair leg shell body welded top the metal set casing, on the metal set casing, dowel hole is arranged, the Spring Card bit slice is connected with the metal set casing by alignment pin, be connected on dowel hole, spring has been installed on alignment pin, one slide bar groove is arranged on the metal set casing, slide bar is arranged between Spring Card bit slice and metal set casing, the solid shell of metal both sides are respectively equipped with two screens districts, on plastic protection casing, corresponding both sides are respectively equipped with two screens joints, plastic protection cover interlocks by screens joint and screens district, with the metal set casing, fix.

Spring Card bit slice of the present utility model side is arranged in half curved, and another side is inclined design, and the design concaved is arranged at Spring Card bit slice top, can link closely with bayonet lock, prevents that chair pin inner housing from separating with chair pin shell body.

The utility model is simple in structure, easy to use, safe and harmless.

The accompanying drawing explanation

Accompanying drawing 1 is enforcement structural representation of the present utility model.

Accompanying drawing 2 is enforcement structural representations of the present utility model.

Accompanying drawing 3 is enforcement structure partial schematic diagrames of the present utility model.

Accompanying drawing 4 is enforcement structure partial schematic diagrames of the present utility model.

Accompanying drawing 5 is enforcement structure partial schematic diagrames of the present utility model.

Accompanying drawing 6 is enforcement structure partial schematic diagrames of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

In figure: chair leg inner housing 1, chair leg shell body 2, screens groove 3, bayonet lock 4, Spring Card bit slice 5, spring 6, alignment pin 7, dowel hole 8, metal set casing 9, slide bar groove 10, slide bar 11, screens district 12, screens joint 13, plastic protection casing 14.

As shown in Figure 1, desk and chair leg of the present utility model comprises chair leg inner housing 1, chair leg shell body 2, screens groove 3, bayonet lock 4, Spring Card bit slice 5, spring 6, alignment pin 7, dowel hole 8, metal set casing 9, slide bar groove 10, slide bar 11, screens district 12, screens joint 13, plastic protection casing 14, the chair bottom connects chair leg inner housing 1 part of desk and chair leg, the equidistant screens groove 3 that is uniformly distributed on chair leg inner housing 1, chair leg inner housing 1 root has bayonet lock 4, chair leg shell body 2 welded top metal set casing 9, dowel hole 8 is arranged on metal set casing 9, Spring Card bit slice 5 is connected with metal set casing 9 by alignment pin 7, be connected on dowel hole 8, spring 6 has been installed on alignment pin 7, one slide bar groove 10 is arranged on metal set casing 9, slide bar 11 is arranged between Spring Card bit slice 5 and metal set casing 9, metal set casing 9 both sides are respectively equipped with two screens districts 12, on plastic protection casing 14, corresponding both sides are respectively equipped with two screens joints 13, plastic protection cover 14 interlocks with screens district 12 by screens joint 13, fixing with metal set casing 9.

During use, as need rising chair height, slide bar 11 is pushed away downwards, make slide bar move to slide bar groove 10 middle parts, now, slide bar 11 withstands recess in Spring Card bit slice 5 middle parts, making Spring Card bit slice 5 can take alignment pin 7 moves as axle, upwards carry chair, effect due to spring 6, Spring Card bit slice 5 automatically springs into when arriving next screens groove 3, screens groove 3 is played to the support effect, after the rising chair completes, slide bar 11 is upwards pushed away, make Spring Card bit slice 5 because slide bar 11 active forces move to screens groove 3 directions, fixed the position of Spring Card bit slice 5 and screens groove 3.As need reduce chair height, slide bar 11 is pushed away downwards along slide bar groove 10, slide bar 11 moves to slide bar groove 10 bottoms, now, slide bar 11 withstands Spring Card bit slice 5 lower positions, due to the effect of power, Spring Card bit slice 5 be take alignment pin 7 as axial outer moving, Spring Card bit slice 5 and screens groove 3 from, chair can be adjusted downwards, to correct position, with Spring Card bit slice 5 and arbitrary draw-in groove 3 levels, be as the criterion, slide bar 11 upwards is pushed into to slide bar groove 10 tops and is fixed.Because the indent design is arranged at Spring Card bit slice 5 tops, with the bayonet lock 4 of chair leg inner housing 1 bottom, interlock, therefore chair leg inner housing 1 can not separate with chair leg shell body 2.

Claims

1. but the desk and chair leg of a free lifting, comprise chair leg inner housing, chair leg shell body, the screens groove, bayonet lock, the Spring Card bit slice, spring, alignment pin, dowel hole, the metal set casing, the slide bar groove, slide bar, the screens district, the screens joint, plastic protection casing, the chair bottom connects the chair leg inner housing part of desk and chair leg, the equidistant screens groove that is uniformly distributed on chair leg inner housing, chair leg inner housing root has bayonet lock, chair leg shell body welded top the metal set casing, on the metal set casing, dowel hole is arranged, the Spring Card bit slice is connected with the metal set casing by alignment pin, be connected on dowel hole, spring has been installed on alignment pin, one slide bar groove is arranged on the metal set casing, slide bar is arranged between Spring Card bit slice and metal set casing, the solid shell of metal both sides are respectively equipped with two screens districts, on plastic protection casing, corresponding both sides are respectively equipped with two screens joints, plastic protection cover interlocks by screens joint and screens district, with the metal set casing, fix.

2. but the desk and chair leg of free lifting according to claim 1, it is characterized in that Spring Card bit slice side is curved in being arranged to partly, another side is inclined design, and the design concaved is arranged at Spring Card bit slice top, can link closely with bayonet lock, prevent that chair pin inner housing from separating with chair pin shell body.