CN213322387U

CN213322387U - Height-adjustable blackboard

Info

Publication number: CN213322387U
Application number: CN202022360332.4U
Authority: CN
Inventors: 马文文
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-01
Anticipated expiration: 2030-10-21

Abstract

The utility model relates to the technical field of teaching aids, in particular to a height-adjustable blackboard, which is convenient to adjust the height of the blackboard through arrangement, reduces the use limitation and improves the applicability; the base, four mobile device of group, two sets of equipment box, two sets of pivots, two sets of screw nut, two sets of fixed plates, blackboard and power device, base bottom and mobile device top fixed connection, equipment box bottom and base top fixed connection, two sets of equipment box are located both ends about the base respectively, be equipped with the cavity in the equipment box, the rotatable installation of pivot is in the equipment box, the circumference outer wall on pivot upper portion is equipped with first screw hole, screw nut spiral shell dress is on the upper portion of pivot, the inboard of equipment box is equipped with rectangular hole, the fixed plate cover is established in the pivot, screw nut bottom and fixed plate top fixed connection, the one end of fixed plate pass rectangular hole and with blackboard fixed connection, be used for driving two sets of pivots and install the top at two sets of equipment box along the rotatory power device of self axis.

Description

Height-adjustable blackboard

Technical Field

The utility model relates to a teaching aid's technical field especially relates to a height-adjustable's blackboard.

Background

As is known to all, the existing blackboards are generally fixed on a wall or can be adjusted in a left-right mode, and for teachers and students with different heights, the blackboards with the same height are not suitable for some people. The age span of the pupils during school is large, the height of the pupils is also large, and if the height of the blackboard is unchanged, the physical health of the pupils is also influenced. The teacher leans on the neck for a long time to write on the blackboard, and the influence on the spine is large; the foot is often tilted to work, so that the physical strength consumption is increased and the health is damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a through the setting, be convenient for adjust the height of blackboard, reduce and use the limitation, improve the height-adjustable's of suitability blackboard.

The utility model discloses a height-adjustable blackboard, the on-line screen storage device comprises a base, four group's mobile device, two sets of equipment casees, two sets of pivots, two sets of screw nut, two sets of fixed plates, blackboard and power device, base bottom and mobile device top fixed connection, equipment bottom and base top fixed connection, two sets of equipment casees are located both ends about the base respectively, the equipment incasement is equipped with the cavity, the rotatable installation of pivot is in the equipment incasement, the circumference outer wall on pivot upper portion is equipped with first screw hole, screw nut spiral shell dress is on the upper portion of pivot, the inboard of equipment case is equipped with rectangular hole, the fixed plate cover is established in the pivot, screw nut bottom and fixed plate top fixed connection, the one end of fixed plate is passed rectangular hole and with blackboard fixed connection, a top at two sets of equipment casees is installed to the power.

The utility model discloses a height-adjustable blackboard, wherein power device includes headstock, two sets of belt pulleys, belt and motor, headstock bottom and equipment box top end fixed connection, be equipped with the cavity in the headstock, the pivot top is passed in the equipment box gets into the headstock to rotate with the headstock top and be connected, two sets of belt pulleys are fixed the cover respectively and are established in the pivot, connect through belt transmission between two sets of belt pulleys, motor bottom and headstock top fixed connection, the output and the left side pivot top fixed connection of motor.

The utility model discloses a height-adjustable blackboard, wherein the mobile device includes the support column, the fixed block, the bolt, the connecting rod, the landing leg with fill up the foot, support column top and base bottom fixed connection, fixed block top and support column bottom are connected, the support column bottom is equipped with the second screw hole, the bolt top is passed the fixed block and is connected with the support column spiral shell, connecting rod top and fixed block bottom fixed connection, the connecting rod bottom is equipped with the truckle, landing leg top and fixed block top fixed connection, the landing leg bottom is equipped with the third screw hole, it is equipped with the screw rod to fill up the foot top, the landing leg with fill up foot spiral shell dress.

The utility model discloses a height-adjustable's blackboard still includes two sets of guide rails and two sets of sliders, and two sets of guide rails are fixed mounting respectively at the inside wall of two sets of equipment boxes, slider and guide rail sliding connection, and two sets of sliders are fixed mounting both ends about the blackboard respectively.

The utility model discloses a height-adjustable's blackboard still includes four group's stoppers, and wherein two sets of stoppers are installed respectively at the upper and lower both ends of a set of pivot, and two sets of stoppers are installed respectively at the upper and lower both ends of another group's pivot in addition.

The utility model discloses a height-adjustable's blackboard still includes two sets of strengthening ribs, strengthening rib front end and equipment box rear end fixed connection, strengthening rib rear end and base top fixed connection.

Compared with the prior art, the beneficial effects of the utility model are that: at first promote the integrated device, move it to in the suitable environment, when the height of needs adjustment blackboard, start power device, drive two sets of pivots and rotate, drive screw nut and fixed plate and reciprocate, drive the blackboard simultaneously and reciprocate, adjust the height of blackboard can, through above setting, be convenient for adjust the height of blackboard, reduce and use the limitation, improve the suitability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic left side view of the structure of FIG. 1;

FIG. 3 is a schematic view showing the structure of the connection between the motor and the power box;

FIG. 4 is a schematic view showing the structure of the connection of the supporting column and the fixing block;

FIG. 5 is an enlarged schematic view of a portion A of FIG. 1;

in the drawings, the reference numbers: 1. a base; 2. a mobile device; 3. an equipment box; 4. a rotating shaft; 5. a first threaded hole; 6. a lead screw nut; 7. a strip hole; 8. a fixing plate; 9. a blackboard; 10. a power plant; 11. a power box; 12. a belt pulley; 13. a belt; 14. a motor; 15. a support pillar; 16. a fixed block; 17. a bolt; 18. a connecting rod; 19. a caster wheel; 20. a support leg; 21. a foot pad; 22. a guide rail; 23. a slider; 24. a limiting block; 25. and (5) reinforcing ribs.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1 to 5, the height adjustable blackboard of the present invention comprises a base 1, four sets of moving devices 2, two sets of equipment boxes 3, two sets of rotating shafts 4, two sets of screw nuts 6, two sets of fixing plates 8, a blackboard 9 and a power device 10, wherein the bottom end of the base 1 is fixedly connected with the top end of the moving device 2, the bottom end of the equipment box 3 is fixedly connected with the top end of the base 1, the two sets of equipment boxes 3 are respectively positioned at the left and right ends of the base 1, a cavity is arranged in the equipment box 3, the rotating shaft 4 is rotatably installed in the equipment box 3, the circumferential outer wall at the upper part of the rotating shaft 4 is provided with a first threaded hole 5, the screw nut 6 is screwed on the upper part of the rotating shaft 4, the inner side of the equipment box 3 is provided with a strip hole 7, the fixing plate 8 is sleeved on the rotating shaft 4, the bottom end of, the power device 10 for driving the two groups of rotating shafts 4 to rotate along the axes of the rotating shafts is arranged at the top ends of the two groups of equipment boxes 3; at first promote the integrated device, move it to in the suitable environment, when the height of blackboard 9 is adjusted to needs, start power device 10, drive two sets of pivots 4 and rotate, drive screw nut 6 and fixed plate 8 and reciprocate, drive blackboard 9 simultaneously and reciprocate, adjust blackboard 9 the height can, through above setting, be convenient for adjust blackboard 9's height, reduce the use limitation, improve the suitability.

The utility model discloses a height-adjustable blackboard, wherein power device 10 includes headstock 11, two sets of belt pulleys 12, belt 13 and motor 14, headstock 11 bottom and 3 tops of equipment box are fixed and connected, be equipped with the cavity in the

headstock

11, 4 tops of pivot pass equipment box 3 and get into headstock 11, and rotate with headstock 11 top and be connected, two sets of belt pulleys 12 are fixed the cover respectively on pivot 4, connect through belt 13 transmission between two sets of belt pulleys 12, motor 14 bottom and 11 tops of headstock are fixed and connected, the output of

motor

14 and 4 tops of left side pivot are fixed and connected; by setting, the motor 14 is started, the transmission drives the left rotating shaft 4 to transmit, and simultaneously drives the belt 13 and the right rotating shaft 4 to rotate, so that the screw nut 6 and the fixing plate 8 are driven to move up and down, and power is provided for the up and down movement of the blackboard 9.

The utility model discloses a height-adjustable blackboard, wherein mobile device 2 includes support column 15, fixed block 16, bolt 17, connecting rod 18, landing leg 20 and pad foot 21, support column 15 top and 1 bottom fixed connection of base, the top of fixed block 16 is connected with support column 15 bottom, support column 15 bottom is equipped with the second screw hole, bolt 17 top passes fixed block 16 and is connected with support column 15 spiral shell dress, the top of connecting rod 18 and the 16 bottom fixed connection of fixed block, the 18 bottom of connecting rod is equipped with truckle 19, the top of landing leg 20 and the 16 top fixed connection of fixed block, the 20 bottom of landing leg is equipped with the third screw hole, the 21 top of pad foot is equipped with the screw rod, landing leg 20 and pad foot 21 spiral shell dress connect; through setting up, be convenient for promote the overall device and remove, when need not remove, rotate pad foot 21, make pad foot 21 bottom and ground contact, can prevent that truckle 19 from rotating, make the overall device more stable.

The height-adjustable blackboard of the utility model also comprises two groups of guide rails 22 and two groups of sliders 23, wherein the two groups of guide rails 22 are respectively and fixedly arranged on the inner side walls of the two groups of equipment boxes 3, the sliders 23 are connected with the guide rails 22 in a sliding way, and the two groups of sliders 23 are respectively and fixedly arranged at the left end and the right end of the blackboard 9; through setting up, can play the effect of support to blackboard 9, improve blackboard 9's stability.

The utility model discloses a height-adjustable blackboard, which also comprises four groups of limit blocks 24, wherein two groups of limit blocks 24 are respectively arranged at the upper and lower ends of one group of rotating shaft 4, and the other two groups of limit blocks 24 are respectively arranged at the upper and lower ends of the other group of rotating shaft 4; through setting up, can play spacing effect to the removal of lead screw nut 6 and fixed plate 8, prevent that it from removing excessively.

The height-adjustable blackboard of the utility model also comprises two groups of reinforcing ribs 25, the front ends of the reinforcing ribs 25 are fixedly connected with the rear end of the equipment box 3, and the rear ends of the reinforcing ribs 25 are fixedly connected with the top end of the base 1; through setting up, can strengthen the connection of equipment box 3 and base 1, improve equipment box 3's stability.

The utility model discloses a height-adjustable's blackboard, it is at the during operation, at first promote the integrated device, in moving it to suitable environment, after confirming the position, the rotation fills up the foot, make and fill up foot bottom and ground contact, can prevent that the truckle from rotating, it is more stable to make the integrated device, when adjusting the height of blackboard, starter motor, the transmission drives left side pivot transmission, drive belt and right side pivot simultaneously and rotate, thereby it reciprocates to drive screw nut and fixed plate, and it reciprocates to drive the blackboard, later adjust the height of blackboard can.

The installation mode, the connection mode or the setting mode of the height-adjustable blackboard of the utility model are common mechanical modes, and the height-adjustable blackboard can be implemented as long as the beneficial effects can be achieved; the utility model discloses a motor of height-adjustable blackboard is purchase on the market, and this industry technical staff only need according to its subsidiary service instruction install and operate can.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A height-adjustable blackboard is characterized by comprising a base (1), four sets of moving devices (2), two sets of equipment boxes (3), two sets of rotating shafts (4), two sets of screw nuts (6), two sets of fixing plates (8), a blackboard (9) and a power device (10), wherein the bottom end of the base (1) is fixedly connected with the top end of the moving devices (2), the bottom end of the equipment box (3) is fixedly connected with the top end of the base (1), the two sets of equipment boxes (3) are respectively positioned at the left end and the right end of the base (1), a cavity is arranged in the equipment box (3), the rotating shafts (4) are rotatably arranged in the equipment boxes (3), the circumferential outer walls at the upper parts of the rotating shafts (4) are provided with first threaded holes (5), the screw nuts (6) are screwed at the upper parts of the rotating shafts (4), the inner sides of the equipment boxes (3) are provided with strip-shaped holes, the bottom end of the screw nut (6) is fixedly connected with the top end of the fixing plate (8), one end of the fixing plate (8) penetrates through the strip hole (7) and is fixedly connected with the blackboard (9), and a power device (10) for driving the two groups of rotating shafts (4) to rotate along the axis of the power device is arranged at the top ends of the two groups of equipment boxes (3).

2. A height adjustable blackboard according to claim 1, wherein the power device (10) includes a power box (11), two sets of belt pulleys (12), a belt (13) and a motor (14), the bottom end of the power box (11) is fixedly connected with the top end of the equipment box (3), a cavity is provided in the power box (11), the top end of the rotating shaft (4) passes through the equipment box (3) to enter the power box (11) and is rotatably connected with the top end of the power box (11), the two sets of belt pulleys (12) are fixedly sleeved on the rotating shaft (4) respectively, the two sets of belt pulleys (12) are in transmission connection through the belt (13), the bottom end of the motor (14) is fixedly connected with the top end of the power box (11), and the output end of the motor (14) is fixedly connected with the top end of the left rotating shaft (4).

3. A height adjustable blackboard according to claim 2, wherein the moving means (2) includes a support column (15), a fixed block (16), a bolt (17), connecting rod (18), landing leg (20) and pad foot (21), support column (15) top and base (1) bottom fixed connection, fixed block (16) top and support column (15) bottom are connected, support column (15) bottom is equipped with the second screw hole, bolt (17) top is passed fixed block (16) and is connected with support column (15) spiral shell dress, connecting rod (18) top and fixed block (16) bottom fixed connection, connecting rod (18) bottom is equipped with truckle (19), landing leg (20) top and fixed block (16) top fixed connection, landing leg (20) bottom is equipped with the third screw hole, pad foot (21) top is equipped with the screw rod, landing leg (20) and pad foot (21) spiral shell dress are connected.

4. A height adjustable blackboard according to claim 3, further including two sets of guide rails (22) and two sets of sliders (23), the two sets of guide rails (22) are respectively fixedly installed on the inner side walls of the two sets of equipment boxes (3), the sliders (23) are slidably connected with the guide rails (22), and the two sets of sliders (23) are respectively fixedly installed on the left and right ends of the blackboard (9).

5. A height adjustable blackboard according to claim 4, further including four sets of stoppers (24), wherein two sets of stoppers (24) are respectively installed at the upper and lower ends of one set of rotating shaft (4), and the other two sets of stoppers (24) are respectively installed at the upper and lower ends of the other set of rotating shaft (4).

6. A height adjustable blackboard according to claim 5, further including two sets of ribs (25), the front ends of the ribs (25) are fixedly connected with the rear end of the equipment box (3), and the rear ends of the ribs (25) are fixedly connected with the top end of the base (1).