CN209219395U

CN209219395U - A kind of desk that liftable folds

Info

Publication number: CN209219395U
Application number: CN201821624134.0U
Authority: CN
Inventors: 徐保香; 黄福标
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2019-08-09
Anticipated expiration: 2028-09-30

Abstract

The utility model relates to the desks that a kind of liftable folds, including main table plate, the bottom surface of main table plate is connected with the top table bracket that can be gone up and down, the auxiliary table for being hinged at energy vertical direction overturning of top table bracket, auxiliary table includes the auxiliary table bracket being hinged with top table bracket, it is mounted on the auxiliary desktop of auxiliary table cradle top, the adaptation top table support height of distal end articulated on auxiliary table bracket from main table plate and the supporting leg that is adjustable oneself height, the buckle of supporting leg is blocked in the matching being arranged on auxiliary desktop bottom surface, the the first positioning knob switch that can control auxiliary desktop and unfold and fold is being equipped with the hinged place of auxiliary table bracket on top table bracket.The utility model expands the desktop of desk by the auxiliary table downwardly turned over, and strengthens the support strength of desk after expansion by the supporting leg on auxiliary table, can not only lie prone on desk, can also lie on desk, expands it and uses function.

Description

A kind of desk that liftable folds

Technical field

The utility model relates to desk, desk especially a kind of expansible and that there is the liftable folding supported by force.

Background technique

Desk is furniture common in daily life, for student, will be learnt daily facing to desk, Structure of desk design it is reasonable from different influences otherwise can be generated to the body of child.Existing desk i.e. study table Desktop is smaller in structure, and children can only lie prone in lunch break and rest on desk, and cannot lie down rest, and rest is bad also to be influenced The sound development of child body.Then there is the desk being extended to desktop, but desk expansible at present is to pass through pumping The mode drawn or rotated horizontally extends, due to the limitation of this extended mode, desktop after extension also only former desk Table leg is supported, and desktop expands but support strength is inadequate, and the risk for having collapsing exists, therefore also can not lie for children Lower rest, while the auxiliary table that this mode extends can not also be adjusted the height of desktop, using with limitation.

Utility model content

For existing deficiency, the utility model provides table a kind of expansible and that there is the liftable supported by force to fold Son.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of desk that liftable folds, including main table plate, the bottom surface of the main table plate are connected with the top table branch that can be gone up and down Frame, the auxiliary table for being hinged at energy vertical direction overturning of the top table bracket, the auxiliary table includes being hinged with top table bracket Auxiliary table bracket, be mounted on auxiliary table cradle top auxiliary desktop, distal end articulated on auxiliary table bracket from main table plate adaptation master Table support height and the supporting leg for being adjustable oneself height, the matching that is arranged on auxiliary desktop bottom surface block the card of supporting leg It detains, is being equipped with the first positioning knob that can control auxiliary desktop and unfold and fold with the hinged place of auxiliary table bracket on the top table bracket Switch.

Preferably, the supporting leg includes the upper support column being hinged with auxiliary table bracket, it is set on upper support column Lower support column, card hole is successively equipped at intervals on the upper support column from top to bottom, and the lower support column is equipped with one and can be caught in The the second positioning knob switch for being used to lock support leg and adjusting height of card hole.

Preferably, there are two the first positioning knob switches and the front end corresponding to main table plate bottom surface is arranged in after End position.

Preferably, the supporting leg there are two and front-end and back-end position corresponding to auxiliary desktop bottom surface is set, two It is equipped with a cross bar between supporting leg, the second positioning knob switch is designed on the lower support column of each supporting leg.

Preferably, the first positioning knob switch includes criss-cross bolt, the spring being set on bolt, rotation Button, the fixed block being connected on top table bracket, the bottom of the knob are equipped with positioning mechanism, and the positioning mechanism includes that setting exists The groove of knob bottom, the cylindrical projections being arranged in groove, be arranged in protrusion perforation knob through-hole, along protrusion The outwardly projecting step with arc riser being arranged between circumferential symmetrically arranged two boss, two boss；The fixation The surface that block corresponds to knob also is provided with positioning mechanism identical with the positioning mechanism, and the bolt, which is located on fixed block, to be positioned In the through-hole of mechanism and by knob the screw of through-hole be fixedly connected with knob and make spring positioned at bolt and knob.

Preferably, the second positioning knob switch is to switch mutually isostructural rotary switch with the first positioning knob.

Preferably, the main table plate includes the hang plate and level board mutually separated.

Preferably, the tilt angle of the hang plate be it is adjustable, adjustable angular range be 0-60 °.

Preferably, the top table bracket is gone up and down by Manual elevator mechanism.

Preferably, the two sides of the top table bracket are all hinged with auxiliary table, on the top table bracket with auxiliary table bracket Each hinged place, which is equipped with, can control the first positioning knob switch that auxiliary desktop unfolds and folds.

The utility model has the beneficial effects that: the utility model expands desk by the auxiliary table that vertical direction is overturn Desktop, and the support strength of desk after expansion is strengthened by the supporting leg on auxiliary table, when auxiliary table is undeployed, supporting leg is It is fastened on auxiliary the bottom of the table, the use and the change to top table structure that will not influence top table, the simple and convenient production of structure, Facilitate maintenance, while the height of supporting leg is adjusted with top table height, so that it may meet what different height children used It is required that.Excessive space will not be occupied by having folded auxiliary table in study, auxiliary table is unfolded and by desk adjusting to appropriate when rest Height, which can be lain on desk, rests, and expands it and uses function.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the structural schematic diagram that the utility model embodiment is looked up；

Fig. 3 is the cross-sectional view that the first positioning knob switch is axially cut along it in the utility model embodiment；

Fig. 4 is the schematic perspective view in the utility model embodiment Fig. 3 after knob incision；

Fig. 5 is the cross-sectional view that part A is axially cut along switch in the utility model embodiment Fig. 1；

Fig. 6 is the auxiliary folded structural schematic diagram of table in the utility model embodiment；

Fig. 7 is the structural schematic diagram that top table bracket two sides are designed with auxiliary table in the utility model embodiment；

Parts title and serial number in figure: the auxiliary table 30- of 1- main table plate 10- hang plate 11- level board 2- top table bracket 3- is auxiliary Support column 3200- card hole 3,210 second positions under the auxiliary desktop 32- supporting leg 33- buckle 320- upper support column 321- of table bracket 31- Rotary switch 4- the first positioning knob switch 40- bolt 41- spring 42- knob 43- fixed block 420- groove 421- protrusion 422- Through-hole 423- boss 424- step 5- cross bar.

Specific embodiment

Purposes, technical schemes and advantages in order to illustrate the embodiments of the present invention more clearly are clearer, below in conjunction with The utility model is described in further detail for accompanying drawings and embodiments, carries out clear, complete description, it is clear that described embodiment It is the section Example of the utility model, rather than whole embodiments.Based on the embodiment of the present invention, ordinary skill people Member's every other embodiment obtained under the premise of not making the creative labor, belongs to the protection model of the utility model It encloses.In addition, the direction term being previously mentioned in the utility model, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "outside" etc., is only the direction with reference to additional illustration, the direction term used be in order to it is more preferable, be illustrated more clearly that and understand this hair It is bright, rather than indicate or imply the orientation that the utility model must have, therefore be not considered as limiting the invention.

The utility model embodiment is as shown in Fig. 1 to Fig. 7, a kind of desk that liftable folds, including main table plate 1, institute The bottom surface for stating main table plate 1 is connected with the top table bracket 2 that can be gone up and down, and the lifting device of top table bracket 2 both can choose automatic makeup It sets, also can choose hand-operated mechanism to make its lifting, in order to which what is used in campus facilitates saving cost then preferred hand elevator Structure, there is no need to electricity consumptions not to need motor for the use of Manual elevator mechanism, avoid motor when school uses to study The influence of environment, and Manual elevator mechanism can then be such that desk goes up and down by the engagement of gear and screw rod or by air pressure rod etc. Hand gear goes up and down to operate, and structure is simple, low in cost.Being hinged at for the top table bracket 2 can vertical direction overturning Auxiliary table 3, due to the pull or rotational structure of horizontal direction, in the case where the desktop of extension needs to be accommodated in top table when not in use, just So that structure is complicated changes for top table, and vertical direction overturning is it is avoided that change to 2 structure of top table bracket, it is only necessary to by with master Table bracket 2 hingedly can just make auxiliary table 3 be unfolded or fold up, easy to use, and the angle overturn can be 0-180 °, but It is being more than in order to prevent to generate limbs in the overturning of 1 surface of main table plate to crush, then is being limited to flip angle by the structure limited 0-90 °, the auxiliary table 3 includes the auxiliary table bracket 30 being hinged with top table bracket 2, the auxiliary desktop for being mounted on auxiliary 30 top of table bracket 31,2 height of adaptation top table bracket of the distal end articulated on auxiliary table bracket 30 from main table plate 1 and the branch that is adjustable oneself height Support leg 32, the matching being arranged on auxiliary 31 bottom surface of desktop block the buckle 33 of supporting leg 32, and buckle 33 is preferably provided at auxiliary desktop From the proximal end of main table plate 1 on 31 bottom surfaces, when auxiliary table 3 is undeployed, supporting leg 32 is fastened on auxiliary 31 bottom surface of desktop, Bu Huiying The use and the change to 2 structure of top table bracket, the simple and convenient production of structure for ringing top table also facilitate maintenance, fold up Auxiliary table 3 will not occupy excessive space, and when use first passes through overturning, and auxiliary desktop 31 is turned to and is in same flat with main table plate 1 Then face pulls out supporting leg 32 from buckle 33, rotational support leg 32 makes it in vertical state, then adjust it with auxiliary desktop 31 Height makes supporting leg 32 be supported on ground, just supports desk together with original table leg in auxiliary table 3 expansion rear support leg 32 in this way, Play the role of reinforcement to the support of desk, solves the risk that desk extension rear support intensity is not enough easy to cause collapsing, together When supporting leg 32 height be able to carry out adjusting auxiliary table 3 can just gone up and down with the lifting of top table bracket 2, meet different bodies Auxiliary table 3 is unfolded during the break for the requirement of high child, and the appropriate height of desk adjustment is lain in top rest for child, The purposes of desk is extended, also ensures safety when child's rest, and is just needed after the expansion of auxiliary table 3 by its position It is fixed and avoids causing danger, then can control auxiliary table with the setting of the hinged place of auxiliary table bracket 30 on the top table bracket 2 The first positioning knob switch 4 that plate 31 unfolds and folds easily adjusts the unfolded of auxiliary table 3 by the control of switch. As shown in Figure 5, the supporting leg 32 includes the upper support column 320 being hinged with auxiliary table bracket 30, is set in upper support column 320 On lower support column 321, be successively equipped at intervals with card hole 3200, the lower support column 321 from top to bottom on the upper support column 320 It is equipped with the second positioning knob switch 3210 for being used to lock support leg 32 and adjusting height that can be caught in card hole 3200, is passed through The sliding of support intercolumniation up and down, and can be very by the cooperation positioning between card hole 3200 and the second positioning knob switch 3210 Easily the height of supporting leg 32 is adjusted and is fixed.

It is further to improve, as illustrated in fig 2 and fig, in order to which the position after enabling auxiliary table 3 to be unfolded more consolidates, then There are two the first positioning knob switches 4 and the front-end and back-end position for corresponding to 1 bottom surface of main table plate is arranged in, in front and back two End, which is all fixed, increases its stability.Simultaneously in order to enable the support after auxiliary table 3 is unfolded is stronger reliable, as shown in Figure 1, Figure 2 With shown in Fig. 6, the supporting leg 32 there are two and front-end and back-end position corresponding to auxiliary 31 bottom surface of desktop is set, two A cross bar 5 is equipped between support leg 32, the setting of cross bar 5 then avoids auxiliary table 3 two supporting legs 32 when by larger pressure and produces The problem of raw split, is designed with a second positioning knob switch 3210 on the lower support column 321 of each supporting leg 32, will prop up When support Figure 32 is adjusted to suitable height, just its position is locked by the second positioning knob switch 3210, ensure that structure It is firm, it avoids supporting intercolumniation to generate sliding and cause danger up and down in.

Further to improve, as shown in Figures 3 and 4, the first positioning knob switch 4 includes criss-cross bolt 40, spring 41, the knob 42, the fixed block 43 being connected on top table bracket 2 being set on bolt 40, since bolt 40 is cross Shape 41 sets of spring on it when would not fall off from bolt, due to cover on bolt 40, the then preferred pressure of spring 41 Spring, the bottom of the knob 42 are equipped with positioning mechanism, the positioning mechanism include the groove 420 that 42 bottom of knob is set, The cylindrical projections 421 that are arranged in groove 420, the through-hole 422 for the perforation knob 420 being arranged in protrusion 421, along protrusion The outwardly projecting platform with arc riser being arranged between symmetrically arranged two boss 423 of 421 circumferential direction, two boss 423 Rank 424；The surface that the fixed block 43 corresponds to knob 42 also is provided with positioning mechanism identical with the positioning mechanism, fixed block 43 can be that bar shaped is round or the block of other any shapes, the bolt 40 are located at the through-hole of positioning mechanism on fixed block 43 In and by knob 42 screw of through-hole be fixedly connected with knob 42 and make spring 41 positioned at bolt 40 and knob 42. Due to positioning mechanism all having the same on knob 42 and fixed block 43, knob 42 or boss on fixed block 43 and step are each other Between around protrusion be formed the different structure of height, the arc riser on step then facilitates knob, in knob and solid When determining the boss in block positioning mechanism and contacting opposite to each other, bolt 40 is to contract on fixed block 43 in the through-hole of positioning mechanism, When boss to each other is opposite with step to be contacted, bolt 40 blocks auxiliary table bracket 30 with regard to stretching out under the elastic force of spring.It uses When, when auxiliary table 3 is undeployed, bolt 40 is to contract on fixed block 43 in the through-hole of positioning mechanism, will not snap into auxiliary table bracket On 30, the overturning of auxiliary table 3 would not be also influenced, after auxiliary table 3 is deployed into horizontal position, effect of the bolt 40 in 41 elastic force of spring Under block auxiliary table bracket 30 from stretching out in the through-hole of positioning mechanism on fixed block 43 so that be not able to rotate in auxiliary table bracket 30, When needing to fold auxiliary table 3, turning knob 42 retracts bolt 40.For the convenience for producing and assembling, then make described Two positioning knob switches 3210 are mutually isostructural rotary switches with the first positioning knob switch 4.

Shown in further improvement, as shown in Figure 1, Figure 2, Fig. 6 and Fig. 7, the main table plate 1 includes the hang plate 10 mutually separated With level board 11, the setting of hang plate 10 is then that placement in order to adapt to the different modes such as books and the different use of reply are practised It is used, avoid bowing study for a long time and caused by health problem.The tilt angle of the hang plate 10 be it is adjustable, it is adjustable The angular range of section is 0-60 °, and the adjusting of angle is then the use in order to adapt to different height children, for the tune of tilt angle It saves the combination that conventional gear and screw rod then can be used or other adjusts the structure of angles to adjust.

Further to improve, as shown in Figure 7, the two sides of the top table bracket 2 are all hinged with auxiliary table 3, the top table branch The first positioning knob that can control auxiliary desktop 31 and unfold and fold is equipped on frame 2 in each hinged place with auxiliary table bracket 30 Switch 4, thus further expansion desk panel, meets the demand to large table surface and small storage space, greatly facilitates The use of people.

It should be understood that for those of ordinary skills, can improvement or transformation based on the above description, and All these modifications and variations all should belong to the protection scope of the appended claims for the utility model.

Claims

1. the desk that a kind of liftable folds, it is characterised in that: including main table plate, the bottom surface of the main table plate, which is connected with, to be gone up and down Top table bracket, the top table bracket be hinged at can vertical direction overturning auxiliary table, the auxiliary table includes and top table branch Auxiliary table bracket that frame is hinged, the auxiliary desktop for being mounted on auxiliary table cradle top, the distal end articulated on auxiliary table bracket from main table plate Adaptation top table support height and the supporting leg for being adjustable oneself height, the matching that is arranged on auxiliary desktop bottom surface block support The buckle of leg is being equipped with can control that auxiliary desktop unfolds and folds first fixed with the hinged place of auxiliary table bracket on the top table bracket Position rotary switch.

2. the desk that liftable folds according to claim 1, it is characterised in that: the supporting leg includes and auxiliary table bracket phase Hinged upper support column, the lower support column being set on upper support column are successively equipped at intervals with from top to bottom on the upper support column Card hole, the lower support column are equipped with the second positioning knob for being used to lock support leg adjusting height that one can be caught in card hole and open It closes.

3. the desk that liftable folds according to claim 2, it is characterised in that: there are two the first positioning knob switches And the front-end and back-end position corresponding to main table plate bottom surface is set.

4. the desk that liftable folds according to claim 3, it is characterised in that: there are two the supporting legs and is arranged right A cross bar should be equipped between the front-end and back-end position of auxiliary desktop bottom surface, two supporting legs, on the lower support column of each supporting leg It is designed with the second positioning knob switch.

5. the desk that liftable folds according to claim 2, it is characterised in that: the first positioning knob switch includes ten The bolt of font, the spring being set on bolt, knob, the fixed block being connected on top table bracket, the bottom of the knob are set There is positioning mechanism, the positioning mechanism includes the groove that knob bottom is arranged in, the cylindrical projections being arranged in groove, prominent Rise the through-hole of the upper perforation knob being arranged, symmetrically arranged two boss of circumferential direction along protrusion, be arranged between two boss it is outside Step outstanding with arc riser；The surface that the fixed block corresponds to knob also is provided with identical with the positioning mechanism Positioning mechanism, the bolt is located on fixed block in the through-hole of positioning mechanism and screw and knob by passing through through-hole on knob Being fixedly connected makes spring between bolt and knob.

6. the desk that liftable folds according to claim 5, it is characterised in that: second positioning knob switch is and the The one positioning mutually isostructural rotary switch of rotary switch.

7. the desk that liftable folds according to claim 1, it is characterised in that: the main table plate includes the inclination mutually separated Plate and level board.

8. the desk that liftable folds according to claim 7, it is characterised in that: the tilt angle of the hang plate is adjustable Section, adjustable angular range is 0-60 °.

9. the desk that liftable folds according to claim 1, it is characterised in that: the top table bracket is by hand lifting Mechanism is gone up and down.

10. the desk that liftable folds according to claim 1, it is characterised in that: the two sides of the top table bracket are all hinged There is auxiliary table, being equipped on the top table bracket in each hinged place with auxiliary table bracket can control what auxiliary desktop unfolded and folded First positioning knob switch.