CN210783591U

CN210783591U - Blackboard capable of being lifted movably

Info

Publication number: CN210783591U
Application number: CN201921281780.6U
Authority: CN
Inventors: 施娟
Original assignee: Jiangsu Kangle Toys Co ltd
Current assignee: Jiangsu Kangle Toys Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-06-19
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a blackboard of portable lift relates to blackboard technical field, the on-line screen storage device comprises a base, the bottom of base is equipped with the wheel, the fixed section of thick bamboo of top middle part fixedly connected with of base, swing joint has flexible post in the fixed section of thick bamboo, the top of flexible post is equipped with the supporting seat, the top fixedly connected with blackboard of supporting seat, the bottom four corners department of base all sets up flutedly, swing joint has the fixed block in the recess, the bottom and the wheel of fixed block are connected, the top fixedly connected with bracing piece of fixed block. The utility model discloses a set up the wheel, made things convenient for the removal of blackboard, again under the effect of mutually supporting between recess, fixed block, spacing groove, stopper, bracing piece and return spring, reached absorbing effect, avoid the blackboard to receive vibrations when removing, through the cooperation setting between solid fixed cylinder, flexible post, servo motor, thread groove and the screw rod, be convenient for adjust the height of blackboard.

Description

Blackboard capable of being lifted movably

Technical Field

The utility model relates to a blackboard technical field specifically is a blackboard of portable lift.

Background

The blackboard is not particularly a black board, is a plane which can be repeatedly written by chalk in the traditional sense, is hard, and is mainly used for teaching. The blackboard is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk. Mostly black, greenish black, white or beige.

At present, the inconvenient height-adjusting of current blackboard, the practicality is poor, and current portable blackboard receives vibrations when removing and causes the harm to the blackboard easily, influences the life of device, and in addition, the single face blackboard is after finishing using, if the above knowledge point need remain just influence usable floor area, influence teaching.

Therefore, it is necessary to provide a movable and liftable blackboard to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blackboard of portable lift to solve the inconvenient height-adjusting of current blackboard of proposing in the above-mentioned background art, portable blackboard receives vibrations when removing and causes the harm to the blackboard easily, and the single face blackboard is after finishing using, if the above knowledge point need remain just to influence the problem of usable floor area.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a movable lifting blackboard comprises a base, wherein wheels are arranged at the bottom of the base, a fixed cylinder is fixedly connected to the middle of the top end of the base, a telescopic column is movably connected in the fixed cylinder, a supporting seat is arranged at the top end of the telescopic column, and a blackboard is fixedly connected to the top end of the supporting seat;

four corners of the bottom end of the base are provided with grooves, fixed blocks are movably connected in the grooves, the bottom ends of the fixed blocks are connected with wheels, the top ends of the fixed blocks are fixedly connected with supporting rods, the top ends of the grooves are provided with limiting grooves, limiting blocks are arranged in the limiting grooves, the top ends of the supporting rods are inserted into the limiting grooves and are fixedly connected with the limiting blocks, and return springs are sleeved on the outer sides of the supporting rods;

the utility model discloses a telescopic column, including base, supporting seat, flexible post, mounting disc, slot internal thread, slot fixed connection, the middle part fixedly connected with servo motor of base, the thread groove has been seted up to the inside of flexible post, thread groove internal thread has the screw rod, the bottom of screw rod and the epaxial fixed connection on the servo motor, the active groove has been seted up at the middle part of supporting seat, active groove internal swing joint has the mounting disc, the top of flexible post insert the active groove and with mounting disc fixed connection, the slot has all been seted up at the both ends of mounting disc, the fixed slot has been seted up to the one end inside of supporting seat, be equipped with the inserted bar in the fixed slot, the one end of inserted bar runs through supporting seat and fixedly connected with pull ring, the other end of inserted bar stretches into the active.

Optionally, one end of the return spring is attached to the groove, and the other end of the return spring is attached to the fixing block.

Optionally, guide sliding grooves are formed in two sides of the inner wall of the fixed cylinder, guide sliding blocks are movably connected in the guide sliding grooves, and the guide sliding blocks are fixedly connected with the telescopic columns.

Optionally, the movable groove is circular, and the mounting plate is matched with the movable groove.

Optionally, one end of the compression spring is attached to the fixing groove, and the other end of the compression spring is attached to the stop block.

Optionally, the slot is adapted to the insertion rod.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up the wheel, made things convenient for the removal of blackboard, again between recess, fixed block, spacing groove, stopper, bracing piece and return spring under the effect of mutually supporting, reached absorbing effect, avoid the blackboard to receive vibrations when removing, played the guard action to the blackboard.

2. The utility model discloses a cooperation setting between solid fixed cylinder, flexible post, servo motor, thread groove and the screw rod is convenient for adjust the height of blackboard, makes the blackboard have the function of lift.

3. The utility model discloses a set up supporting seat, movable groove and mounting disc, be convenient for adjust the positive and negative of blackboard, can remain above-mentioned knowledge point, improved the practicality of device, under the effect of mutually supporting between slot, inserted bar, dog, pull ring and compression spring again, not only play limiting displacement to the blackboard, avoid the blackboard to take place to squint, guaranteed the stability of device, convenient operation labour saving and time saving moreover.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is an enlarged schematic view of the structure at B in fig. 2 according to the present invention.

In the figure: 1. a base; 2. a wheel; 3. a fixed cylinder; 4. a telescopic column; 5. a supporting seat; 6. a blackboard; 7. a groove; 8. a fixed block; 9. a limiting groove; 10. a limiting block; 11. a support bar; 12. a return spring; 13. a servo motor; 14. a thread groove; 15. a screw; 16. a guide chute; 17. a guide slider; 18. a movable groove; 19. mounting a disc; 20. a slot; 21. fixing grooves; 22. inserting a rod; 23. a stopper; 24. a pull ring; 25. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model provides a movable lifting blackboard as shown in figures 1-4, which comprises a base 1, wherein the bottom of the base 1 is provided with wheels 2 as shown in figure 1, the movement of a blackboard 6 is facilitated by arranging the wheels 2, the middle part of the top end of the base 1 is fixedly connected with a fixed cylinder 3, a telescopic column 4 is movably connected in the fixed cylinder 3, the top end of the telescopic column 4 is provided with a supporting seat 5, the top end of the supporting seat 5 is fixedly connected with the blackboard 6, and the front and the back of the blackboard 6 can be used;

as shown in fig. 2, a servo motor 13 is fixedly connected to the middle of a base 1, a thread groove 14 is formed in a telescopic column 4, a screw 15 is connected to the thread groove 14 in an inner thread manner, the bottom end of the screw 15 is fixedly connected to a shaft on the servo motor 13, a fixed cylinder 3, the telescopic column 4, the servo motor 13, the thread groove 14 and the screw 15 are arranged in a matched manner, so that the height of a blackboard 6 can be conveniently adjusted, the blackboard 6 has a lifting function, guide sliding grooves 16 are formed in both sides of the inner wall of the fixed cylinder 3, guide sliding blocks 17 are movably connected to the guide sliding grooves 16, the guide sliding blocks 17 are fixedly connected to the telescopic column 4, a movable track is provided for the telescopic column 4 by arranging the guide sliding grooves 16 and the guide sliding blocks 17, the telescopic column 4 is prevented from rotating, a movable groove 18 is formed in the middle of a supporting seat 5, a mounting plate 19 is movably connected to the movable groove 18, the top end of the telescopic column 4 is inserted into the movable groove 18 and fixedly connected with the mounting disc 19, the two ends of the mounting disc 19 are both provided with slots 20, and the front and back sides of the blackboard 6 can be conveniently adjusted by arranging the supporting seat 5, the movable groove 18 and the mounting disc 19, so that the practicability of the device is improved;

as shown in fig. 3, four corners of the bottom end of the base 1 are provided with grooves 7, fixed blocks 8 are movably connected in the grooves 7, the bottom ends of the fixed blocks 8 are connected with the wheels 2, the top ends of the fixed blocks 8 are fixedly connected with supporting rods 11, the top ends of the grooves 7 are provided with limiting grooves 9, limiting blocks 10 are arranged in the limiting grooves 9, the top ends of the supporting rods 11 are inserted into the limiting grooves 9 and are fixedly connected with the limiting blocks 10, return springs 12 are sleeved on the outer sides of the supporting rods 11, one ends of the return springs 12 are connected with the grooves 7 in an attaching manner, the other ends of the return springs 12 are connected with the fixed blocks 8 in an attaching manner, under the mutual matching effect of the grooves 7, the fixed blocks 8, the limiting grooves 9, the limiting blocks 10, the supporting rods 11 and the return springs 12, a damping effect is achieved, vibration of the;

shown by fig. 4, fixed slot 21 has been seted up to the one end inside of supporting seat 5, be equipped with inserted bar 22 in the fixed slot 21, the one end of inserted bar 22 runs through supporting seat 5 and fixedly connected with pull ring 24, the other end of inserted bar 22 stretches into movable groove 18, inserted bar 22 and slot 20 looks adaptation, the equal fixedly connected with dog 23 in middle part both sides of inserted bar 22, compression spring 25 has been cup jointed in the middle part outside of inserted bar 22, compression spring 25's one end and fixed slot 21 laminating are connected, compression spring 25's the other end and the dog 23 laminating are connected, at slot 20, inserted bar 22, dog 23, under the effect of mutually supporting between pull ring 24 and the compression spring 25, not only play limiting displacement to blackboard 6, avoid blackboard 6 to take place the skew, the stability of device has been guaranteed, and convenient operation, time saving and labor saving.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

This practical theory of operation: when the blackboard eraser is used, the blackboard 6 is firstly pushed to move to a corresponding position through the wheels 2 at the bottom, when the blackboard eraser moves, the blackboard eraser is inevitably subjected to vibration, the return spring 12 is stressed, deformed and restored, the damping effect is achieved under the action of the return spring 12, then the blackboard 6 is adjusted according to the required height, the servo motor 13 is started, the servo motor 13 drives the screw rod 15 to rotate, the screw rod 15 drives the telescopic column 4 to move upwards or downwards through the thread groove 14, the telescopic column 4 drives the blackboard 6 to move upwards or downwards through the supporting seat 5, after the position is adjusted, the servo motor 13 is closed, then the blackboard 6 starts to be used, when the front of the blackboard 6 is used, the back side can be used, the pull ring 24 is firstly pulled, the pull ring 24 drives the insert rod 22 to move outwards, when the insert rod 22 is separated from the insert groove 20, the blackboard 6 can be rotated by 90 degrees, the blackboard 6 drives the supporting seat 5 to rotate 90 degrees, at this time, the inserting rod 22 corresponds to the slot 20 at the other end of the mounting disc 19, then the pull ring 24 is loosened, at this time, the stop dog 23 is driven by the extrusion force of the compression spring 25 to move the inserting rod 22 inwards, and the inserting rod 22 is inserted into the slot 20 at the other end of the mounting disc 19 to complete the fixation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a blackboard of portable lift, includes base (1), its characterized in that: the blackboard eraser is characterized in that wheels (2) are arranged at the bottom of the base (1), a fixed cylinder (3) is fixedly connected to the middle of the top end of the base (1), a telescopic column (4) is movably connected into the fixed cylinder (3), a supporting seat (5) is arranged at the top end of the telescopic column (4), and a blackboard (6) is fixedly connected to the top end of the supporting seat (5);

the four corners of the bottom end of the base (1) are respectively provided with a groove (7), a fixed block (8) is movably connected in each groove (7), the bottom end of each fixed block (8) is connected with the wheel (2), the top end of each fixed block (8) is fixedly connected with a support rod (11), the top end of each groove (7) is provided with a limit groove (9), a limit block (10) is arranged in each limit groove (9), the top end of each support rod (11) is inserted into each limit groove (9) and is fixedly connected with each limit block (10), and the outer side of each support rod (11) is sleeved with a return spring (12);

the middle part of the base (1) is fixedly connected with a servo motor (13), a thread groove (14) is formed in the telescopic column (4), a screw rod (15) is connected with the thread groove (14) in an internal thread manner, the bottom end of the screw rod (15) is fixedly connected with a shaft on the servo motor (13), a movable groove (18) is formed in the middle part of the supporting seat (5), a mounting disc (19) is movably connected in the movable groove (18), the top end of the telescopic column (4) is inserted into the movable groove (18) and is fixedly connected with the mounting disc (19), slots (20) are formed in the two ends of the mounting disc (19), a fixed groove (21) is formed in one end of the supporting seat (5), an inserting rod (22) is arranged in the fixed groove (21), one end of the inserting rod (22) penetrates through the supporting seat (5) and is fixedly connected with a pull ring (24), and the other end of the inserting rod (22) extends into the movable, the middle part both sides of inserted bar (22) all fixedly connected with dog (23), compression spring (25) have been cup jointed in the middle part outside of inserted bar (22).

2. A movable liftable blackboard according to claim 1, wherein:

one end of the return spring (12) is attached to the groove (7), and the other end of the return spring (12) is attached to the fixing block (8).

3. A movable liftable blackboard according to claim 1, wherein:

guide sliding grooves (16) are formed in two sides of the inner wall of the fixed cylinder (3), guide sliding blocks (17) are movably connected in the guide sliding grooves (16), and the guide sliding blocks (17) are fixedly connected with the telescopic columns (4).

4. A movable liftable blackboard according to claim 1, wherein:

the movable groove (18) is circular, and the mounting disc (19) is matched with the movable groove (18).

5. A movable liftable blackboard according to claim 1, wherein:

one end of the compression spring (25) is attached to the fixing groove (21), and the other end of the compression spring (25) is attached to the stop block (23).

6. A movable liftable blackboard according to claim 1, wherein:

the slot (20) is matched with the inserted rod (22).