CN201480515U

CN201480515U - Stepless lifting desk and chair

Info

Publication number: CN201480515U
Application number: CN2009200163357U
Authority: CN
Inventors: 张群
Original assignee: LIAONING YUDA SCIENCE & EDUCATION EQUIPMENT CO LTD
Current assignee: LIAONING YUDA SCIENCE & EDUCATION EQUIPMENT CO LTD
Priority date: 2009-08-11
Filing date: 2009-08-11
Publication date: 2010-05-26
Anticipated expiration: 2019-08-11

Abstract

The utility model relates to a stepless lifting desk and chair, which is particularly suitable for various schools and can adapt to different users. In the technical scheme, racks are vertically fixed at the long openings on the two sides of a lifting tube, a through shaft with a regular hexagon at either end is arranged in a transverse support of two vertical leg tubes, the upper parts of the vertical leg tubes are respectively provided with a fixing sleeve, a block ring is arranged on the through shaft between the lifting tube and the vertical leg tubes, main gears which are engaged with the rack are arranged at the regular hexagons on the two ends of the through shaft, the side face of the main gear at one end is provided with a compression spring and an auxiliary gear, a gear with inner teeth which is engaged with the auxiliary gear is arranged outside the auxiliary gear, and a buckle cover is respectively shielded outside the gear and the auxiliary gear. The utility model has the advantages of easy and convenient operation and adjustment, solid components and long service life, realizes the non-gear adjustment, fundamentally overcomes the defects of the original desk and chair, and achieves the purpose of scientifically providing desks and chairs according to needs of different users.

Description

Stepless lifting type desk, tablet chair

Technical field the utility model relates to and is particularly suitable for all kinds of schools, because of people suitable a kind of stepless lifting type desk, tablet chair.

Desk, tablet chair kind that the present school of background technology is equipped with are more, what its up-down mode adopted mostly is fastening with screw, and inside and outside fall way is regulated in classification, and it is big to exist unfavorable factor, the conciliation cycle is long relatively, consumable accessory is more, service life is short, has influenced the use of normal teaching.The student grows soon at long every day in addition, and there is very big-difference in student's height of the same grade, as untimely adjustment table, the height of chair, just is difficult to the normal need that Shi Ying Celadon juvenile body is grown up and grown.

The deficiency that summary of the invention exists at above-mentioned prior art, it is a kind of rational in infrastructure that the utility model will provide, stressed even, safe and reliable, simple to operate, can not have a kind of stepless lifting desk, the tablet chair that gear is regulated by student's height.The utility model realizes that the above-mentioned purpose technical solution is: will comprise the desk that has fall way and upright leg pipe, tablet chair is improved, the i.e. long mouth position that has in the fall way both sides, be fixed with tooth bar longitudinally, in the stull that two upright leg pipes connect, be provided with the axis that two ends have regular hexagon, top at upright leg pipe is fixed with the fixed cover that is located between fall way and the upright leg pipe, axis place between fall way and upright leg pipe is provided with back-up ring, fixing the master gear that meshes with tooth bar at the regular hexagon place at axis two ends, at one end stage clip is equipped with in the side of master gear, negative gear, outside negative gear, be provided with the gear that has internal tooth with negative gears engaged, at gear, negative gear is covered with buckle closure.The utility model stepless lifting type desk, tablet chair be compared with the prior art: owing to adopted the wheel and rack engagement to drive the up-down mode of fall way; realized the adjusting of no gear; simple, convenient; parts are not fragile; long service life; it is long fundamentally to have changed original desk, existing relative conciliation cycle of tablet chair; consumable accessory is more; service life is short; influenced the deficiency of normal teaching, reached and vary with each individual the outfit desk of science, tablet chair; protection students physical and mental health and improve the order ground of teaching environment.

Description of drawings Fig. 1, be the front view of embodiment 1.Fig. 2, be the side view of Fig. 1.Fig. 3, be embodiment 2 front views.Fig. 4, be the side view of Fig. 3.Fig. 5, be the schematic diagram of A-A section among Fig. 1, Fig. 3.

The specific embodiment has further understanding for the structure to the utility model stepless lifting type desk, tablet chair, and details are as follows in conjunction with two embodiment of the present utility model:

Embodiment 1

Present embodiment 1 is the stepless lifting type tablet chair.Its structure is referring to Fig. 1, Fig. 2, Fig. 5, the long mouth position that has two fall way 4 both sides, vertically be fixed with tooth bar 14, be enclosed within the stull of upright leg pipes 5 connections outside two fall ways 4, be provided with the axis 6 that two ends have regular hexagon, top at upright leg pipe 5 is fixed with the fixed cover 10 that is located between fall way 4 and the upright leg pipe 5, axis 6 places between fall way 4 and upright leg pipe 5 are provided with back-up ring 13, fixing the master gear 15 that meshes with tooth bar 14 at the regular hexagon place at axis 6 two ends, at one end stage clip 16 is equipped with in the side of master gear 15, negative gear 18, outside having the negative gear 18 of external tooth, be provided with the gear that has internal tooth 17 that meshes with negative gear 18, at gear 17, negative gear 18 is covered with buckle closure 19.Regulate for convenience the distance of observing fall way 4 liftings, have form 11, be provided with graduation mark 12 on the fall way 4 with on 11 corresponding of the forms in the outside of upright leg pipe 5.On the rectangular pipe support 3 that fall way 4 upper outside are welded with, be welded with connecting plate, backboard 1 and seat surface plate 8 be fixed on the connecting plate by screw 2.At upright leg pipe 5 lower feet beam two ends the footing 7 that rubber rubber is made is housed.In the mouth of pipe of pipe support 3, be provided with pipe plug 9, below fall way 4, be fixed with the resilient sleeve 20 that is located at 5 of fall way 4 and upright leg pipes.During adjusting, if with instrument along or counter clockwise direction rotate buckle closure 19, just can control the liter of fall way 4 or fall, reach the needed height of user.

Embodiment 2

Present embodiment 2 is stepless lifting type desks, and referring to Fig. 3, Fig. 4, Fig. 5, different is with embodiment 1 in its structure, on two fall ways 4, be welded with connecting plate, on connecting plate, fixing the drawer case, be welded with hanging hook, desktop is being fixed on the top of drawer case with screw at drawer case side plate by screw.All the other are partly identical with embodiment 1.

Claims

1. stepless lifting type desk, tablet chair, comprise and have fall way (4), the desk of upright leg pipe (5), tablet chair, it is characterized in that the long mouth position that has in fall way (4) both sides, fixing tooth bar (14) longitudinally, in the stull that two upright leg pipes (5) connect, be provided with the axis (6) that two ends have regular hexagon, top at upright leg pipe (5) is fixed with the fixed cover (10) that is located between fall way (4) and the upright leg pipe (5), axis (6) between fall way (4) and upright leg pipe (5) locates to be provided with back-up ring (13), fixing the master gear (15) that meshes with tooth bar (14) at the regular hexagon place at axis (6) two ends, at one end stage clip (16) is equipped with in the side of master gear (15), negative gear (18), outside negative gear (18), be provided with the gear that has internal tooth (17) that meshes with negative gear (18), in gear (17), negative gear (18) is covered with buckle closure (19).

2. stepless lifting type desk according to claim 1, tablet chair is characterized in that having form (11) in the outside of upright leg pipe (5).

3. stepless lifting type desk according to claim 1, tablet chair, it is characterized in that fall way (4) go up and corresponding of form (11) on be provided with graduation mark (12).