CN209915315U

CN209915315U - Lifting learning table for children

Info

Publication number: CN209915315U
Application number: CN201920261287.1U
Authority: CN
Inventors: 陆海荣
Original assignee: Nantong Jiuzheng Ergonomics Co Ltd
Current assignee: Nantong Jiuzheng Ergonomics Co Ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-01-10
Anticipated expiration: 2029-03-01

Abstract

The utility model relates to a lifting learning desk for children, which comprises a desktop frame; the lifting leg mechanism comprises lifting leg components which are respectively arranged at the two sides of the rear part of the desktop frame; the turnover desktop mechanism comprises a fixed desktop and a turnover desktop, the fixed desktop is arranged on the upper end surface of the desktop frame, a driving cylinder for driving the turnover desktop is arranged between the rear side position of the lower end surface of the turnover desktop and the inner side position of the front end of the desktop frame, the upper end of the driving cylinder is connected with the lower end surface of the rear side of the turnover desktop through a movable component, and the lower end surface of the front side of the turnover desktop is movably hinged with the two side positions of the outer edge of the desktop frame through second movable parts; the movable assembly comprises a connecting piece a connected with the lower end face of the turnover desktop, a U-shaped connecting piece b and a limit switch, wherein the U-shaped connecting piece b and the limit switch are sequentially coated inside the connecting piece a. The utility model has the advantages of simple operation, stepless regulation and self-locking function realized by the turnover table top, and stable height lifting.

Description

Lifting learning table for children

The technical field is as follows:

the utility model belongs to children study table field, concretely relates to children's lift study table.

Background art:

the learning table is an important teaching facility related to the learning and physical health of students, and various learning table products used by the students and sold in the market at present have various functions, although the types and styles are various, the functions and the grade of the desk are quite high, but each product has single structure and function, is generally a flat-plate type small-capacity square desk without lifting function, a large number of books can only be placed on the desk surface, the moving space of the desk surface is greatly limited, different inclination angles cannot be adjusted, the desks are inconvenient to use, the desk has the advantages that the desk has adverse effects on the sitting posture, eyesight and attention of students, the requirements of students in schools and families on higher levels cannot be met, the desk with the unchanged height cannot meet long-term requirements along with the growth of the age of the students, and scientific experiments prove that one important environmental factor of myopia is that the desk does not meet the requirements.

Patent No. 201711104966.X a liftable learning table for teenager learning, which has the following disadvantages: 1. the movable table top is inclined at an angle through the inclined hinge and the hydraulic damper, the hydraulic damper provides a resistance while pushing, so that the movable table top is slowly closed when being closed, accidental injury in the using process is prevented, meanwhile, the structure needs to be realized by combining the inclined hinge and the hydraulic damper, the structure is complex, no self-locking function is provided, particularly, the inclined hinge is a mechanical structure, downward overturning can be realized only when the inclined hinge is lifted to the highest point, and stepless adjustment of the overturning angle of the table top cannot be realized; 2. the lift of table leg is realized through the turbine worm, need apply a revolving force to the top of turbine worm and make the lift leg obtain the power of vertical lift, because table leg top weight is great, when rotatory handle to the rising, need the user to apply bigger power, when rotatory handle to the decline, the influence that receives gravity can fall fast, produces the potential safety hazard to the user, and the operation is inconvenient.

The invention content is as follows:

the utility model aims at overcoming the above insufficiency and providing a child lifting learning table which is simple and convenient to operate, realizes stepless regulation and self-locking function by a turnover table top and is stable in height lifting.

The purpose of the utility model is realized through the following technical scheme: a lifting learning desk for children comprises

A desktop frame;

the lifting leg mechanism comprises lifting leg components which are respectively arranged at two sides of the rear part of the desktop frame, the lifting leg components comprise connecting blocks embedded in the desktop frame, and a first lifting leg and a second lifting leg which are arranged below the connecting blocks in a vertically telescopic manner, and the lower ends of the second lifting legs are provided with supporting legs which are longitudinally arranged;

the turnover desktop mechanism comprises a fixed desktop and a turnover desktop, wherein the fixed desktop is arranged on the upper end surface of a desktop frame, the turnover desktop is flush with the turnover desktop, a driving cylinder for driving the turnover desktop is arranged between the rear side position of the lower end surface of the turnover desktop and the inner side position of the front end of the desktop frame, the lower end of the driving cylinder is movably hinged with the desktop frame through a first moving part, the upper end of the driving cylinder is connected with the lower end surface of the rear side of the turnover desktop through a movable component, and the lower end surface of the front side of the turnover desktop is movably hinged with the two side positions of the outer edge of the desktop frame through second moving parts respectively; the movable assembly includes the connecting piece an of being connected with the lower terminal surface of upset desktop and in proper order the cladding at the inside U type form connecting piece b of connecting piece a, limit switch, connecting piece a, connecting piece b, limit switch is by a pivot swing joint and connecting piece an that transversely run through, limit switch uses the round pin axle to rotate as the pin joint, connecting piece a comprises the horizontal plate of being connected with the terminal surface under the upset desktop and the vertical plate of arranging the horizontal plate both sides in, connecting piece b's opening upwards sets up and the upper end both sides of connecting piece b inwards bend and is equipped with the portion of bending, limit switch includes the connecting plate and arranges the convex spacing arch of connecting plate lower direction horizontal plate direction in, the connecting plate block sets up between portion of bending and the horizontal plate, the upper end that the upper end of driving cylinder runs through connecting piece b setting and driving cylinder simultaneously is equipped with.

The utility model discloses a further improvement lies in: first lift leg and second lift leg are flexible from top to bottom through a lift group of arranging first lift leg inside in, lift group is including arranging the motor in the connecting block in and arranging the lead screw of the inside vertical setting of first lift leg in, the outside cover of lead screw is equipped with outer pole, the upper end of this outer pole is equipped with the thread bush, the thread bush suit passes through threaded connection at the outside of lead screw and thread bush and lead screw, the upper end and the motor of lead screw are connected and the lead screw rotates along with the rotation of motor and set up, the below of lead screw is equipped with spacing ring cover, the cladding of second lift leg is in the outside of first lift leg, be equipped with the locating part between first lift leg and the second lift leg, the locating part suit is in the outside of first lift leg, and locating part and second lift leg block fixed connection.

The utility model discloses a further improvement lies in: the locating part includes spacing body and arranges a plurality of spacing archs a on the spacing body outside edge in, is equipped with a plurality of spacing archs b on the outside border position of spacing body, is equipped with a plurality of spacing holes that set up with spacing protruding a block and is equipped with a plurality of spacing grooves that set up with spacing protruding b block on the second lift leg, and the border position of spacing body is arranged in to the spacing groove, and the dog-ear position of spacing body is equipped with the through-hole respectively.

The utility model discloses a further improvement lies in: a synchronous controller is arranged on any lifting leg and is respectively connected with the two motors.

The utility model discloses a further improvement lies in: a left drawer and a right drawer are arranged below the desktop frame, and the drawers are connected with the desktop frame in a sliding way through sliding rails.

The utility model discloses a further improvement lies in: the friction pad is arranged at the upper position of the front side of the supporting leg, and foot pads are respectively arranged at the front side and the rear side of the lower part of the supporting leg.

The utility model discloses a further improvement lies in: a bookshelf is arranged at the rear side position above the fixed desktop.

The utility model discloses a further improvement lies in: the upper end front side position of upset desktop is equipped with a U type dog, and the thickness of dog increases progressively from back to front along with the upset desktop.

The utility model discloses a further improvement lies in: and a starting lock hole is formed in any second lifting leg, a starting lock is arranged through the starting lock hole, and the starting lock is connected with the motor.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses a upset desktop passes through driving cylinder swing joint with the desktop frame, change traditional mechanical mechanism and pushing mechanism's integrated configuration, the structure is simplified, realize infinitely variable control, the self-locking function can be realized to the driving cylinder simultaneously, in the time of using, stimulate limit switch's connecting plate to the upset desktop, limit switch's spacing arch and the case contact of driving cylinder upper end this moment, the driving cylinder is in the active state, along with the flexible upset motion that can realize the upset desktop of driving cylinder, when the user needs to be fixed at certain angle, the spacing arch of stirring limit switch again keeps away from the case, then the driving cylinder is in the locking state, improve the safety in utilization, round pin axle through connection spare an, connecting piece b, limit switch, can realize the angular rotation of driving cylinder and upset desktop, can adjust by oneself round the round pin axle, be convenient for realize infinitely variable control.

2. The lifting device has the advantages that the first lifting leg and the second lifting leg are vertically telescopic through the lifting group, the structure is simple and convenient, the operation is convenient, meanwhile, the limiting part arranged between the first lifting leg and the second lifting leg plays a role in relieving hard friction force generated when the two lifting legs move up and down, and the friction damage of the outer surface of the first lifting leg and the inner surface of the second lifting leg is avoided.

3. The setting of spacing arch an and spacing arch b plays the effect of guaranteeing the fastness of being connected of locating part and second lift leg, avoids taking place to break away from at lift in-process locating part and second lift leg, and the setting of through-hole plays light structure and alleviates the frictional force of locating part and first lift leg corner position department on the spacing body simultaneously.

4. A synchronous controller is arranged on one lifting leg and is respectively connected with two motors, so that the lifting leg components on two sides can be lifted synchronously, and the use stability is ensured.

5. The setting of two drawers plays the effect that realizes student's article classification, is convenient for cultivate the custom that student's classification was accomodate.

6. The bookshelf has the advantages that the bookshelf is convenient to store and place books and stationery, and the neatness and the storage performance of the desktop are improved.

7. The upper end front side position of upset desktop is equipped with a U type dog, and the thickness of dog is progressively increased progressively by back to preceding along with the upset desktop, and books, stationery, electronic product drop are placed in the setting of dog, and dog accessible magnetic attraction adsorbs on the upset desktop, can realize easily taking off.

8. The starting lock is connected with the motor, and the setting of starting the lock plays safety protection's effect, only puts in the starting keyhole when the starting lock, and then whole mechanism is in the locking state, even the user presses the switch carelessly, the phenomenon of the leg oscilaltion that also can not appear suddenly.

Description of the drawings:

fig. 1 is a schematic structural view of the lifting learning table for children of the present invention.

Fig. 2 is a schematic view of the connection between the desktop frame and the turnover desktop of the lifting learning desk for children of the present invention.

Fig. 3 is a schematic structural view of a movable assembly of the lifting learning table for children of the present invention.

Fig. 4 is a schematic structural view of the lifting leg assembly of the lifting learning table for children of the present invention.

Fig. 5 is a connection and disassembly diagram of the first lifting leg and the second lifting leg of the lifting learning desk for children.

Reference numbers in the figures: 1-desktop frame, 2-connecting block, 3-first lifting leg, 4-second lifting leg, 5-supporting leg, 6-fixed desktop, 7-turnover desktop, 8-driving cylinder, 9-first moving part, 10-second moving part, 11-connecting part a, 12-connecting part b, 13-connecting plate, 14-shaft pin, 15-bending part, 16-limiting protrusion, 17-motor, 18-limiting body, 19-limiting protrusion a, 20-limiting protrusion b, 21-limiting hole, 22-limiting groove, 23-through hole, 24-drawer, 25-friction pad, 26-foot pad, 27-bookshelf, 28-stop block, 29-valve core, 30-screw rod, 31-outer rod, 32-thread sleeve, 33-spacing ring sleeve.

The specific implementation mode is as follows:

in order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

Fig. 1 shows an embodiment of the lifting learning table for children of the present invention, which comprises

A desktop frame 1;

the lifting leg mechanism comprises lifting leg components which are respectively arranged at two sides of the rear part of the desktop frame 1, the lifting leg components comprise a connecting block 2 embedded in the desktop frame 1, a first lifting leg 3 and a second lifting leg 4 which are arranged at the lower part of the connecting block 2 and are arranged in a vertically telescopic manner, and the lower end of the second lifting leg 4 is provided with a supporting leg 5 which is arranged longitudinally;

a turnover desktop mechanism, as shown in fig. 2, the turnover desktop mechanism includes a fixed desktop 6 and a turnover desktop 7 disposed on the upper end surface of the desktop frame 1, the fixed desktop 6 is flush with the turnover desktop 7, a driving cylinder 8 for driving the turnover desktop 7 is disposed between the rear side position of the lower end surface of the turnover desktop 7 and the inner side position of the front end of the desktop frame 1, the lower end of the driving cylinder 8 is movably hinged to the desktop frame 1 through a first moving member 9, the upper end of the driving cylinder 8 is connected to the lower end surface of the rear side of the turnover desktop 7 through a moving member, and the lower end surface of the front side of the turnover desktop 7 is movably hinged to the two side positions of the outer edge of the desktop frame 1 through second moving members 10; as shown in fig. 3, the movable assembly includes a connecting member a11 connected to the lower end surface of the turnover table top 7, a U-shaped connecting member b12 and a limit switch sequentially covering inside a connecting member a11, the connecting member a11, a connecting member b12, the limit switch is movably connected by a pin 14 passing through transversely and a connecting member a11, the limit switch rotates with the pin 14 as a hinge point, the connecting member a11 is composed of a horizontal plate connected to the lower end surface of the turnover table top 7 and vertical plates disposed at both sides of the horizontal plate, an opening of the connecting member b12 is disposed upward, both sides of the upper end of the connecting member b12 are bent inward to be provided with a bending portion 15, the limit switch includes a connecting plate 13 and a limit protrusion 16 disposed below the connecting plate 13 and protruding toward the horizontal plate, the connecting plate 13 is clamped between the bending portion 15 and the horizontal plate, the upper end of the driving cylinder 8 is disposed through the connecting member b 36, the spool 29 is disposed adjacent to the limit projection 16.

As shown in fig. 4, it is preferable that the first lifting leg 3 and the second lifting leg 4 are vertically extended and contracted through a lifting group disposed inside the first lifting leg 3, the lifting group includes a motor 17 disposed inside the connecting block 2 and a lead screw 30 vertically disposed inside the first lifting leg 3, an outer rod 31 is sleeved outside the lead screw 30, a threaded sleeve 32 is disposed at an upper end of the outer rod 31, the threaded sleeve 32 is sleeved outside the lead screw 30, the threaded sleeve 32 is in threaded connection with the lead screw 31, an upper end of the lead screw 30 is connected with the motor 17, the lead screw 31 is rotatably disposed along with rotation of the motor 17, a position limiting ring sleeve 33 is disposed below the lead screw 30, the second lifting leg 4 is wrapped outside the first lifting leg 3, a position limiting member is disposed between the first lifting leg 3 and the second lifting leg 4, the position limiting member is sleeved outside the first lifting leg 3, and the position limiting member is fixedly connected with the second lifting leg 4. Stretch out and draw back from top to bottom through going up and down the group realization between first lift leg 3 and the second lift leg 4, and the structure is simple and convenient, convenient operation, and the locating part that sets up between first lift leg 3 and the second lift leg 4 plays the hard frictional force when alleviating two lift leg up-and-down motion simultaneously, avoids the surface of first lift leg 3, the internal surface of second lift leg 4 to take place the friction damage.

As shown in fig. 5, preferably, the limiting member includes a limiting body 18 and a plurality of limiting protrusions a19 disposed on the outer edge of the limiting body 18, a plurality of limiting protrusions b20 are disposed on the outer edge of the limiting body 18, a plurality of limiting holes 21 engaged with the limiting protrusions a19 and a plurality of limiting grooves 22 engaged with the limiting protrusions b20 are disposed on the second lifting leg 4, the limiting grooves 22 are disposed on the upper edge of the limiting body 18, and through holes 23 are disposed at the bevel positions of the limiting body 18. The limiting protrusions a19 and b20 are arranged to ensure the firmness of the connection between the limiting member and the second lifting leg 4, so that the situation that the limiting member is separated from the second lifting leg 4 in the lifting process is avoided, and meanwhile, the through holes 23 in the limiting body 18 are arranged to have a light structure and to relieve the friction between the limiting member and the first lifting leg 3 at the corner position.

A synchronous controller is arranged on any lifting leg and is respectively connected with the two motors, so that the lifting leg assemblies on the two sides can be lifted synchronously, and the use stability is ensured.

A left drawer and a right drawer 24 are arranged below the desktop frame 1, and the drawers 24 are connected with the desktop frame 1 in a sliding way through sliding rails. The arrangement of two drawers 24 plays the effect of realizing student's article classification, is convenient for cultivate the custom that student's classification was accomodate.

The upper position of the front side of the supporting leg 5 is provided with a friction pad 25, and the front and rear positions of the lower part of the supporting leg 5 are respectively provided with a foot pad 26.

A bookshelf 27 is arranged at the rear side position above the fixed desktop 6. The bookshelf 27 has the function of conveniently storing books and stationery, and the neatness and the storage performance of the desktop are improved.

A U-shaped stop block 28 is arranged at the front side position of the upper end of the turnover table top 7, and the thickness of the stop block 28 gradually increases from back to front along with the turnover table top 7. The thickness of dog 28 increases progressively by back to preceding along with upset desktop 7, and books, stationery, electronic product drop are placed to the setting of dog 28, and dog 28 accessible magnetic attraction adsorbs on upset desktop 7, can realize easily taking off.

Any one of the second lifting legs 4 is provided with a starting lock hole, a starting lock is arranged through the starting lock hole, and the starting lock is connected with the motor 17. The setting of start-up lock plays safety protection's effect, only puts in the start-up keyhole when the start-up lock, then whole mechanism is in the locking state, even the user presses the switch carelessly, also can not appear the phenomenon of lift leg oscilaltion suddenly.

The utility model discloses a upset desktop passes through actuating cylinder swing joint with the desktop frame, change the integrated configuration of traditional mechanical mechanism and pushing mechanism, the structure is simplified, realize infinitely variable control, actuating cylinder 8 can realize self-locking function simultaneously, in use, pull limit switch's connecting plate 13 to upset desktop 7, limit switch's spacing arch 16 contacts with case 29 of actuating cylinder 8 upper end this moment, actuating cylinder 8 is in the active state, can realize the upset motion of upset desktop 7 along with the flexible of actuating cylinder 8, when the user needs to be fixed at a certain angle, shift limit switch's spacing arch 16 again and keep away from case 29, actuating cylinder 8 is in the locking state, improve safety in utilization, round pin axle 14 runs through connecting piece a11, connecting piece b12, limit switch, can realize the angular rotation of actuating cylinder 8 and upset desktop 7, can adjust by oneself round pin axle 14, the stepless adjustment is convenient to realize.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a children's lift study table which characterized in that: comprises that

A desktop frame;

the lifting leg mechanism comprises lifting leg assemblies respectively arranged at two sides of the rear part of the desktop frame, each lifting leg assembly comprises a connecting block embedded in the desktop frame, a first lifting leg and a second lifting leg, the first lifting leg and the second lifting leg are arranged below the connecting block in a vertically telescopic mode, and the lower end of the second lifting leg is provided with a supporting leg which is longitudinally arranged;

the turnover desktop mechanism comprises a fixed desktop and a turnover desktop, wherein the fixed desktop is arranged on the upper end surface of a desktop frame, the turnover desktop is flush with the turnover desktop, a driving cylinder for driving the turnover desktop is arranged between the rear side position of the lower end surface of the turnover desktop and the inner side position of the front end of the desktop frame, the lower end of the driving cylinder is movably hinged with the desktop frame through a first moving part, the upper end of the driving cylinder is connected with the lower end surface of the rear side of the turnover desktop through a movable component, and the lower end surface of the front side of the turnover desktop is movably hinged with the two side positions of the outer edge of the desktop frame through second moving parts; the movable component comprises a connecting piece a connected with the lower end surface of the turnover desktop, a U-shaped connecting piece b and a limit switch which are sequentially covered in the connecting piece a, the connecting piece a, the connecting piece b and the limit switch are movably connected by a pin shaft which transversely penetrates through the connecting piece a and the limit switch and rotate by taking the pin shaft as a hinge point, the connecting piece a consists of a horizontal plate connected with the lower end surface of the turnover table top and vertical plates arranged at the two sides of the horizontal plate, the opening of the connecting piece b is arranged upwards, two sides of the upper end of the connecting piece b are bent inwards to form bending parts, the limit switch comprises a connecting plate and a limit bulge which is arranged below the connecting plate and protrudes towards the horizontal plate, the connecting plate is clamped between the bending part and the horizontal plate, meanwhile, the upper end of the driving cylinder penetrates through the connecting piece b and is provided with a valve core, and the valve core is arranged close to the limiting protrusion.

2. The lifting learning table for children as claimed in claim 1, wherein: first lift leg and second lift leg are flexible from top to bottom through an inside lift group of arranging first lift leg in, lift group is including arranging the motor in the connecting block in and arranging the lead screw of the inside vertical setting of first lift leg in, the outside cover of lead screw is equipped with outer pole, and the upper end of this outer pole is equipped with the thread bush, the thread bush suit passes through threaded connection at the outside of lead screw and thread bush and lead screw, the upper end and the motor of lead screw are connected and the lead screw rotates the setting along with the rotation of motor, the below of lead screw is equipped with the limit ring cover, the cladding of second lift leg is in the outside of first lift leg, be equipped with the locating part between first lift leg and the second lift leg, the locating part suit is in the outside of first lift leg, and locating part and second lift leg block fixed connection.

3. The lifting learning table for children as claimed in claim 2, wherein: the locating part includes spacing body and arranges a plurality of spacing archs a on the spacing body outside edge in, be equipped with a plurality of spacing archs b on the outside border position of spacing body, be equipped with a plurality of spacing holes that set up with spacing protruding a block and be equipped with a plurality of spacing grooves that set up with spacing protruding b block on the second lift leg, the last border position of spacing body is arranged in to the spacing groove, the dog-ear position of spacing body is equipped with the through-hole respectively.

4. The lifting learning table for children as claimed in claim 2, wherein: and a synchronous controller is arranged on any one of the lifting legs and is respectively connected with the two motors.

5. The lifting learning table for children as claimed in claim 1, wherein: the lower part of the desktop frame is provided with a left drawer and a right drawer, and the drawers are connected with the desktop frame in a sliding way through sliding rails.

6. The lifting learning table for children as claimed in claim 1, wherein: the friction pad is arranged at the upper position of the front side of the supporting leg, and foot pads are respectively arranged at the front side and the rear side of the lower part of the supporting leg.

7. The lifting learning table for children as claimed in claim 1, wherein: a bookshelf is arranged at the rear side position above the fixed desktop.

8. The lifting learning table for children as claimed in claim 1, wherein: a U-shaped stop block is arranged at the front side position of the upper end of the turnover table top, and the thickness of the stop block gradually increases from back to front along with the turnover table top.

9. The lifting learning table for children as claimed in claim 1, wherein: and a starting lock hole is formed in any one of the second lifting legs, a starting lock penetrates through the starting lock hole, and the starting lock is connected with the motor.