CN2689785Y

CN2689785Y - Study table capable of freely lifting and freely regulating angle

Info

Publication number: CN2689785Y
Application number: CN 200420017302
Authority: CN
Inventors: 张立安
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-01
Filing date: 2004-03-01
Publication date: 2005-04-06
Anticipated expiration: 2014-03-01

Abstract

The utility model relates to a desk, in particular to a study table capable of freely lifting and freely regulating angle, comprising a table top, a table frame, and a lifting appliance. The utility model is characterized in that: the back end of the table top is movably connected with the table frame; the front end of the table top is movably connected with a rack bar, and the rack bar is movably connected with a readjusting appliance with gears. The utility model adopts a uniquely designed lifting appliance and a readjusting appliance, and has the advantages of fast positioning and easy lifting regulation. The table can rise and the fall freely, and regulate the angle degree of the table top freely; when the back table top is regulated into inclination, the front table top still keeps horizontal. The utility model can realize a variety of functions, and is very suitable for use of common students.

Description

But free lifting and the study table of freely adjusting angle

Technical field

The utility model relates to a kind of desk, but particularly a kind of free lifting and the study table of freely adjusting angle.

Background technology

The student with advancing age, height constantly increases, and the desk of most schools remains highly fixing desk, can not regulate according to student's different heights, causes myopia and hunchback easily, and is very harmful to student's health.Therefore the novel elevating desk that designs a kind of suitable student's use is very necessary.Existing lifting desk kind is more, and a class is to regulate the height of desktop by liftable column, and has fastening bolt to position.It has regulate inaccurate, Fei Li shortcoming relatively; And in use, be prone to the sliding dental phenomenon of bolt, and cause the unsettled phenomenon of location height not firm, desk to occur, be that the utility model patent of CN87208863U just belongs to this type of as notification number.Another kind of is the height of regulating desktop by the lowering or hoisting gear of worm and gear, it has solved above-mentioned desk and has regulated inaccurate, in use be prone to the sliding dental phenomenon of bolt, cause and height problem of unstable not firm, desk occurs locating, but the lowering or hoisting gear of this worm and gear has the shortcoming that adjusting is relatively required great effort, cost is high, and efficient is low especially, often worm and gear rotates tens circles, regulate highly just several centimeters, as Granted publication day be December 26 calendar year 2001, Granted publication number just belongs to this type of for the utility model patent of CN2466972Y.Also have a class only to adopt the lowering or hoisting gear of gear and tooth bar to regulate the height of desktop, it has the not firm shortcoming in location, occurs desktop easily and falls automatically.The inventor has applied for that on March 7th, 2003 a kind of denomination of invention is the utility model patent of novel elevating desk, its patent No. is ZL03235722.2, it thoroughly solved adjusting that the said goods exists relatively require great effort, regulate inaccurate, the problem that desktop falls automatically appears easily.But, comprise above-mentioned all products of the inventor, all having desktop is horizontal plane, the defective that the desktop angle can not freely be adjusted.And in actual learning and the work, people often need according to different study habits and require to adjust the desktop angle of inclination, and above product all can not reach this requirement.

Summary of the invention

Technical problem to be solved in the utility model is the defective that exists at existing product, but a kind of free lifting and the study table of freely adjusting the desktop angle are provided, to remedy the deficiency that existing product exists.

The technical solution of the utility model is achieved in that it comprises desktop, table frame, lowering or hoisting gear, and it is characterized in that: the rear end of desktop is movably connected on the frame, and the front end of desktop is connected with tooth bar, and tooth bar flexibly connects with the adjusting device that has gear.

Desktop of the present utility model can be flexibly connected by front desktop and back desktop and form, and is connected with strut on the table frame of the lower end of front desktop and desktop lower end, back; On the feet of table frame lowering or hoisting gear is housed, lowering or hoisting gear be pass a pin in, a power transmission shaft is equipped with at the outer tube two ends, the power transmission shaft two ends have the gear teeth, wherein an end also is provided with the braking tongue, the gear teeth on the power transmission shaft are meshed with tooth bar on the interior pipe, braking tongue on the power transmission shaft is inserted in turning knob and unblanks in the groove, turning knob is had the knob head of unblank groove and fixed groove by two ends, the braking sleeve envelope, the knob handle, two blocks of semicircle brake(-holder) blocks and trig loop are formed, the braking sleeve big envelope is on the knob head, the fixed groove of the first end of knob is inserted in the steady pin of knob handle, the groove of unblanking of the other end is locked by trig loop after snapping in two blocks of semicircle brake(-holder) blocks, and is fixed on the outer tube; Adjusting device is an axostylus axostyle that the self-locking knob is housed, and gear is housed on the axostylus axostyle; The rear end of desktop is movably connected on the frame by loose-leaf; Front desktop is connected by loose-leaf with the back desktop; On the table frame drawer is housed also; Front desktop and desktop junction, back are provided with 0-30 ° chamfering; The desktop front end left and right sides is equipped with two tooth bars and two struts respectively.

The utility model adopts the lowering or hoisting gear and the adjusting device of unique design, it has simple in structure, firm position, lift adjustment advantage easily, can free lifting and freely adjust the desktop angle, and when the back desktop is adjusted into, front desktop remains level, can realize multiple function, be fit to very much numerous students and use.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is a right view of the present utility model

Fig. 3 is the cutaway view of the utility model lowering or hoisting gear

Fig. 4 is that the utility model A-A is to cutaway view

Fig. 5 is the structural representation of the utility model knob head

Fig. 6 is the structural representation of the utility model semicircle brake(-holder) block

The structural representation that Fig. 7 stumbles for the utility model hook

Fig. 8 is the structural representation of the utility model desktop

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further:

The utility model comprises desktop, table frame, lowering or hoisting gear, and the rear end of desktop is movably connected on the frame, and the front end of desktop is connected with tooth bar, and tooth bar flexibly connects with the adjusting device that has gear.

As shown in Figure 1 and Figure 2, desktop of the present utility model can be flexibly connected by loose-leaf 10 by front desktop 1 and back desktop 2 and form, back desktop 2 rear ends are movably connected on the frame 3 by loose-leaf 9, are connected with strut 4 on the table frame 3 of the lower end of front desktop 1 and desktop 2 lower ends, back; Such advantage is to keep back desktop 2 when adjusting arbitrary angle, and front desktop 1 remains level, can realize multiple function; On the feet of table frame 3 lowering or hoisting gear 5 is housed; As shown in Figure 3, lowering or hoisting gear 5 is equipped with a power transmission shaft 18 for interior pipe 16 and outer tube 17 two ends of passing a pin, power transmission shaft 18 two ends have the gear teeth 19, wherein an end also is provided with braking tongue 20, the gear teeth 19 on the power transmission shaft 18 are meshed with tooth bar 21 on the interior pipe 16, braking tongue 20 on the power transmission shaft 18 is inserted in turning knob and unblanks in the groove 22, turning knob is had the knob head 24 of unblank groove 22 and fixed groove 23 by two ends, braking sleeve envelope 25, knob handle 26, two blocks of semicircle brake(-holder)

blocks

27,28 and trig loop 29 form, braking sleeve envelope 25 is enclosed within on the knob head 24, the fixed groove 23 of knob head 24 1 ends is inserted in the steady pin 30 of knob handle 26, the groove 22 of unblanking of the other end snaps in two blocks of semicircle brake(-holder)

blocks

27,28 backs are locked by trig loop 29, and be fixed on the outer tube 17, as shown in Figure 7, semicircle brake(-holder)

block

27,28 straight line is provided with hook and stumbles 34, and hook is stumbled and 34 is stuck in the groove 22 of unblanking of knob head 24; Bearing 31,32 and 33 is equipped with at power transmission shaft 18 two ends respectively.Adjusting device is an axostylus axostyle 7 that self-locking knob 6 is housed, and gear 8 is housed on the axostylus axostyle 7; On the table frame 3 drawer 11 is housed also; As shown in Figure 8, front desktop 1 and desktop 2 junctions, back are provided with 0-30 ° chamfering 12, and chamfering 12 can make front desktop 1 and back desktop 2 when lifting, keeps the certain movement gap; The desktop front end left and right sides is equipped with 13,14 and two struts 4,15 of two tooth bars respectively.

During use, the knob handle 26 of rotating lifting gear, brake(-holder) block hook are stumbled and 34 are clamped braking tongue 20 and drive power transmission shafts 18 and rotate, thereby make the gear teeth 19 drive tooth bars 21 oscilaltions.Because the diameter of semicircle brake(-holder) block is bigger, and braking tongue 20 diameters are very little, therefore cause the moment great disparity, and the table body can't overcome the semicircle brake(-holder) block that causes when self falls and the effect that makes extremely full at huge frictional force between the trig loop and dead point, so can make desktop be stabilized in the interior arbitrary height of range; Conversely, stumble and clamp the braking tongue by turning knob, the moving brake(-holder) block hook of the troughed belt of unblanking, can drive the gear teeth 19, tooth bar 21 motions easily, interior pipe 16 is with tooth bar 21 free liftings, and table frame 3 is free lifting thereupon also.

Equally, the self-locking knob 6 of rotation adjuster, the gear 8 that is equipped with on the axostylus axostyle 7 will rotate together, gear 8 will drive tooth bar 13,14 oscilaltions like this, desktop 1 level under the effect of tooth bar 13,14 and support bar 4,15 is risen, and the front end that also drives back desktop 2 simultaneously upwards rises, and back desktop 2 is tilted, form an inclined-plane, can freely adjust the angle of inclination of desktop 2 as required.

Claims

But 1, a kind of free lifting and freely adjust the study table of angle, it comprises desktop, table frame, lowering or hoisting gear, it is characterized in that: the rear end of desktop is movably connected on the frame, and the front end of desktop is connected with tooth bar, and tooth bar flexibly connects with the adjusting device that has gear.
But 2, according to a kind of free lifting of claim 1 with freely adjust the study table of angle, it is characterized in that: desktop is flexibly connected by front desktop and back desktop and forms, and is connected with strut on the table frame of the lower end of front desktop and desktop lower end, back.
But, it is characterized in that: on the feet of table frame lowering or hoisting gear is housed 3, according to a kind of free lifting of claim 1 or 2 with freely adjust the study table of angle.
4, but according to a kind of free lifting of claim 1 or 2 and the study table of freely adjusting angle, it is characterized in that: lowering or hoisting gear be pass a pin in, a power transmission shaft is equipped with at the outer tube two ends, the power transmission shaft two ends have the gear teeth, wherein an end also is provided with the braking tongue, the gear teeth on the power transmission shaft are meshed with tooth bar on the interior pipe, braking tongue on the power transmission shaft is inserted in turning knob and unblanks in the groove, turning knob is had the knob head of unblank groove and fixed groove by two ends, the braking sleeve envelope, the knob handle, two blocks of semicircle brake(-holder) blocks and trig loop are formed, the braking sleeve big envelope is on the knob head, the fixed groove of the first end of knob is inserted in the steady pin of knob handle, the groove of unblanking of the other end is locked by trig loop after snapping in two blocks of semicircle brake(-holder) blocks, and is fixed on the outer tube.
But 5, according to a kind of free lifting of claim 1 or 2 with freely adjust the study table of angle, it is characterized in that: adjusting device is an axostylus axostyle that the self-locking knob is housed, and gear is housed on the axostylus axostyle.
But 6, according to a kind of free lifting of claim 1 or 2 with freely adjust the study table of angle, it is characterized in that: the rear end of desktop is movably connected on the frame by loose-leaf.
But 7, according to a kind of free lifting of claim 2 with freely adjust the study table of angle, it is characterized in that: front desktop is connected by loose-leaf with the back desktop.
But, it is characterized in that: on the table frame drawer is housed also 8, according to a kind of free lifting of claim 1 or 2 with freely adjust the study table of angle.
But 9, according to a kind of free lifting of claim 2 with freely adjust the study table of angle, it is characterized in that: front desktop and desktop junction, back are provided with 0-30 ° chamfering.
But 10, according to a kind of free lifting of claim 1 or 2 with freely adjust the study table of angle, it is characterized in that: the desktop front end left and right sides is equipped with two tooth bars and two struts respectively.