CN213007270U

CN213007270U - Two-sided teaching blackboard convenient to use

Info

Publication number: CN213007270U
Application number: CN202021744340.2U
Authority: CN
Inventors: 何旭兰
Original assignee: Yiwu Industrial and Commercial College
Current assignee: Yiwu Industrial and Commercial College
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-04-20
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses a two-sided teaching blackboard convenient to use belongs to teaching equipment technical field, has solved current two-sided blackboard and has had the difficult problem of height can not adjust, rotatory and fixed, and its technical essential is: the blackboard lifting mechanism comprises a base plate, the bottom plate top is equipped with the lift case, be equipped with lifting unit in the lift case, lift case top is connected with the backup pad through supporting, the backup pad top is provided with the carousel, carousel top four corners all is through connecting rod and two-sided blackboard fixed connection, two-sided blackboard both sides bottom all is provided with the collection powder groove, the backup pad bilateral symmetry is provided with the pole setting, be connected with two-sided blackboard through spacing subassembly in the pole setting, through lifting unit, can realize the lift of two-sided blackboard, utilize the carousel, can rotate two-sided blackboard, utilize spacing subassembly, can fix the position of two-sided blackboard, have nimble rotation, freely go up and down and effective spacing advantage.

Description

Two-sided teaching blackboard convenient to use

Technical Field

The utility model relates to a teaching equipment field specifically is a two-sided teaching blackboard convenient to use is related to.

Background

The blackboard is not particularly a black board, but is a plane which can be repeatedly written in the traditional sense, the board is hard, is mainly used for teaching, and is mostly black, dark green and white.

In the teaching process, because the student in the classroom is too many, the student that the position leaned on the back is difficult to see the blackboard writing of teacher abbreviation on the blackboard, present double-sided blackboard highly can not adjust, and simultaneously, double-sided blackboard is difficult to rotate, it is comparatively loaded down with trivial details to rotate the after-fixing, need use the nut to fix the position of double-sided blackboard, consuming time and wasting force, from top to bottom, current double-sided blackboard has highly can not adjust, rotatory difficult and fixed difficult shortcoming, be difficult to obtain popularization and application.

Therefore, it is desirable to provide a double-sided teaching blackboard which is convenient to use, and aims to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a two-sided teaching blackboard convenient to use is provided to solve the problem among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a convenient-to-use double-sided teaching blackboard comprises a bottom plate, universal wheels are mounted at four corners of the bottom plate, a lifting box is arranged above the bottom plate, lifting components are arranged in the lifting box, the upper portion of the lifting box is connected with a supporting plate through supporting columns, a rotary table is arranged above the supporting plate, four corners of the upper portion of the rotary table are fixedly connected with the double-sided blackboard through connecting rods, powder collecting grooves are formed in the bottoms of two sides of the double-sided blackboard, vertical rods are symmetrically arranged on two sides of the supporting plate, the vertical rods are connected with the double-sided blackboard through limiting components, the double-sided blackboard can be moved through the universal wheels, the height of the double-sided blackboard can be adjusted through the lifting components, powder can be collected through the powder collecting grooves, the powder is prevented from flying upward, the teaching environment is influenced, the rotary table can rotate, the position of the double-sided blackboard can be fixed, and a teacher can write conveniently.

As a further proposal of the utility model, the lifting component comprises a clapboard, a lead screw, a thread block, a motor and a lifting plate, the lifting box is internally provided with the clapboard which has a gap with the inner side wall of the lifting box, the lower part of the lifting box is provided with the lead screw, one end of the lead screw penetrates through the lifting box and is fixedly connected with the output end of the motor, the thread block is connected with the outer side of the lead screw by screw threads, the lifting plate which has no gap with the inner side wall of the lifting box is arranged above the clapboard, the inner space of the lifting box below the lifting plate and on the left side of the thread block is filled with hydraulic oil, when the double-sided blackboard needs to be lifted, the motor works forward to drive the lead screw to rotate clockwise, the thread block moves to the left side, the hydraulic oil is extruded to move above the clapboard to push the lifting plate, the screw rod rotates anticlockwise to drive the thread block to move towards the right side, the hydraulic oil moves downwards, the lifting plate moves downwards, and the double-faced blackboard descends.

As a further proposal of the utility model, the limiting component comprises an extension plate, a guide hole, a limiting rod, a pull rod, a spring and a rubber block, the extension plate is symmetrically arranged at the front and back above the upright rod, a transverse guide hole is arranged in the extension plate, the limiting rod is movably connected in the guide hole, the pull rod is arranged at the left end of the limiting rod, the inner side of the limiting rod is fixedly connected with the upright rod through the spring, the rubber block is arranged at one side of the limiting rod close to the double-sided blackboard, when the double-sided blackboard needs to rotate, the pull rod is pulled towards both sides, the limiting rod synchronously moves towards both sides, the spring is stressed and contracted, the connection between the limiting rod and the double-sided blackboard is disconnected, the double-sided blackboard is rotated by a turntable, when the double-sided blackboard rotates to a proper position, the user loosens the pull rod, the limiting rod fixes the position of the double-, utilize the block rubber, can improve the fixed effect of stop lever to two-sided blackboard, can prevent simultaneously that the user from with the pull rod to both sides pulling distance too big, can guarantee the normal work of spacing subassembly.

As a further scheme of the utility model, the backup pad left side is connected with the extension bar, the fixed welding in extension bar top has places the board, utilizes the extension bar, and the user can thrust unit, utilizes and places the board, and the teacher can place the teaching material on placing the board, liberates teacher's both hands, improves the practicality of device.

As a further proposal of the utility model, the limiting rod is a C-shaped rod and can fix the position of the double-sided blackboard.

As a further aspect of the present invention, the extension bar is an "L" shaped bar, which facilitates the movement of the teacher to the position of the device.

To sum up, compared with the prior art, the embodiment of the utility model has the following beneficial effects:

the utility model discloses an universal wheel can realize the removal of device, through lifting unit, can realize the lift of double-sided blackboard, utilizes the carousel, can rotate double-sided blackboard, utilizes spacing subassembly, can fix double-sided blackboard's position, prevents that the teacher from taking place to remove when writing double-sided blackboard, influences writing effect and effect of lessoning, possesses the nimble rotation of removing, freely goes up and down and effective spacing effect.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

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

Fig. 2 is a schematic structural view of the limiting assembly in the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the embodiment of the present invention after improvement.

Reference numerals: 1-bottom plate, 2-universal wheel, 3-lifting box, 4-clapboard, 5-lead screw, 6-thread block, 7-motor, 8-lifting plate, 9-support column, 10-support plate, 11-upright rod, 12-rotary table, 13-connecting rod, 14-double-sided blackboard, 15-powder collecting groove, 16-limiting component, 17-extending plate, 18-guide hole, 19-limiting rod, 20-pull rod, 21-spring, 22-rubber block, 23-extending rod and 24-placing plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Example 1

Referring to fig. 1-2, a convenient-to-use double-sided teaching blackboard comprises a bottom plate 1, universal wheels 2 are mounted at four corners of the bottom plate 1, a lifting box 3 is arranged above the bottom plate 1, a lifting assembly is arranged in the lifting box 3, the lifting box 3 is connected with a support plate 10 through a support column 9, a rotary table 12 is arranged above the support plate 10, four corners of the upper portion of the rotary table 12 are fixedly connected with a double-sided blackboard 14 through connecting rods 13, powder collecting grooves 15 are arranged at bottoms of two sides of the double-sided blackboard 14, upright posts 11 are symmetrically arranged at two sides of the support plate 10, the upright posts 11 are connected with the double-sided blackboard 14 through limiting assemblies 16, the universal wheels 2 are utilized to realize movement of the device, the lifting assembly is utilized to adjust the height of the double-sided blackboard 14, the powder collecting grooves 15 are utilized to collect powder and prevent the powder from, the teaching environment is influenced, the double-sided blackboard 14 can be rotated by using the turntable 12, and the position of the double-sided blackboard 14 can be fixed by using the limiting assembly 16, so that a teacher can write conveniently.

The lifting assembly comprises a partition plate 4, a lead screw 5, a threaded block 6, a motor 7 and a lifting plate 8, the lifting box 3 is internally provided with the partition plate 4 which is spaced from the inner side wall of the lifting box 3, the lead screw 5 is arranged below the lifting box 3, one end of the lead screw 5 penetrates through the lifting box 3 and is fixedly connected with the output end of the motor 7, the threaded block 6 is connected with the outer side of the lead screw 5 in a threaded manner, the lifting plate 8 which is not spaced from the inner side wall of the lifting box 3 is arranged above the partition plate 4, hydraulic oil is filled in the inner space of the lifting box 3 below the lifting plate 8 and on the left side of the threaded block 6, when the double-sided blackboard 14 needs to ascend, the motor 7 works in the forward direction to drive the lead screw 5 to rotate clockwise, the threaded block 6 moves to the left side, the hydraulic oil is squeezed to move above the partition plate 4 to push, the motor 7 works reversely, the screw rod 5 rotates anticlockwise to drive the thread block 6 to move towards the right side, the hydraulic oil moves downwards, the lifting plate 8 moves downwards, and the double-sided blackboard 14 descends.

The limiting component 16 comprises a stretching plate 17, a guide hole 18, a limiting rod 19, a pull rod 20, a spring 21 and a rubber block 22, the stretching plate 17 is symmetrically arranged around the upper portion of the upright rod 11, a transverse guide hole 18 is arranged in the stretching plate 17, a limiting rod 19 is movably connected in the guide hole 18, the pull rod 20 is arranged at the left end of the limiting rod 19, the inner side of the limiting rod 19 is fixedly connected with the upright rod 11 through the spring 21, the rubber block 22 is arranged on one side of the limiting rod 19 close to the double-faced blackboard 14, when the double-faced blackboard 14 needs to rotate, the pull rod 20 is pulled towards two sides, the limiting rod 19 synchronously moves towards two sides, the spring 21 is stressed and contracted, the connection between the limiting rod 19 and the double-faced blackboard 14 is disconnected, the turntable 12 is utilized to rotate the double-faced blackboard 14, when the double-faced blackboard 14 rotates to a proper position, the pull rod 20 is loosened by a user, and, the position of the double-sided blackboard 14 is fixed, the rubber block 22 is utilized, the fixing effect of the limiting rod 19 on the double-sided blackboard 14 can be improved, meanwhile, a user can be prevented from pulling the pull rod 20 to two sides for too long distance, and the normal work of the limiting component 16 can be ensured.

Preferably, in this embodiment, the stopper rod 19 is a "C" shaped rod, which can fix the position of the double-sided blackboard 14.

Example 2

Referring to fig. 1 to 3, a convenient double-sided teaching blackboard in embodiment 1 includes a bottom plate 1, universal wheels 2 are mounted at four corners of the bottom plate 1, a lifting box 3 is disposed above the bottom plate 1, a lifting component is disposed in the lifting box 3, the lifting box 3 is connected to a support plate 10 through a support column 9, a rotary table 12 is disposed above the support plate 10, four corners of the upper portion of the rotary table 12 are fixedly connected to a double-sided blackboard 14 through connecting rods 13, powder collecting grooves 15 are disposed at bottoms of two sides of the double-sided blackboard 14, upright posts 11 are symmetrically disposed at two sides of the support plate 10, the upright posts 11 are connected to the double-sided blackboard 14 through limiting components 16, the universal wheels 2 can move the device, the lifting component can adjust the height of the double-sided blackboard 14, the powder collecting grooves 15 can collect powder, the powder is prevented from flying to affect the teaching environment, the double-sided blackboard 14 can be rotated by using the rotary disc 12, and the position of the double-sided blackboard 14 can be fixed by using the limiting component 16, so that a teacher can write conveniently.

Different from embodiment 1, the backup pad 10 left side is connected with the extension bar 23, the fixed welding in extension bar 23 top has places board 24, utilizes the extension bar 23, and the user can thrust unit, utilizes and places board 24, and the teacher can place the teaching material on placing board 24, liberates teacher's both hands, improves the practicality of device.

Preferably, in this embodiment, the extension bar 23 is an "L" shaped bar, which facilitates the teacher moving the position of the device.

The rest of the structure of this example is the same as example 1.

The utility model discloses a theory of operation is:

the universal wheel 2 is utilized to realize the movement of the device, when the double-sided blackboard 14 needs to ascend, the motor 7 works in the forward direction to drive the screw rod 5 to rotate clockwise, the thread block 6 moves to the left side, hydraulic oil is squeezed to move towards the upper part of the partition plate 4 to push the lifting plate 8 to move upwards to realize the ascending of the double-sided blackboard 14, when the double-sided blackboard 14 needs to descend, the motor 7 works in the reverse direction, the screw rod 5 rotates anticlockwise to drive the thread block 6 to move towards the right side, the hydraulic oil moves downwards, the lifting plate 8 moves downwards to realize the descending of the double-sided blackboard 14, when the double-sided blackboard 14 needs to rotate, the pull rods 20 are pulled towards the two sides, the limiting rods 19 synchronously move towards the two sides, the springs 21 are stressed to contract, the connection between the limiting rods 19 and the double-sided blackboard 14 is disconnected, the double-sided blackboard 14 is rotated by, the position of the double-sided blackboard 14 is fixed by the limiting rod 19 under the action of the spring 21, and by means of the extending rod 23, a user can push the device, and by means of the placing plate 24, a teacher can place teaching materials on the placing plate 24.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a two-sided teaching blackboard convenient to use, includes bottom plate (1), its characterized in that, universal wheel (2) are all installed to bottom plate (1) bottom four corners position department, bottom plate (1) top is equipped with lift case (3), be equipped with lifting unit in lift case (3), lift case (3) top is connected with backup pad (10) through support column (9), backup pad (10) top is provided with carousel (12), carousel (12) top four corners all is through connecting rod (13) and two-sided blackboard (14) fixed connection, two-sided blackboard (14) both sides bottom all is provided with collection powder groove (15), backup pad (10) bilateral symmetry is provided with pole setting (11), be connected with two-sided blackboard (14) through spacing subassembly (16) in pole setting (11).

2. The double-sided teaching blackboard convenient to use according to claim 1, wherein the lifting component comprises a partition plate (4), a lead screw (5), a threaded block (6), a motor (7) and a lifting plate (8), the partition plate (4) with a gap left in the inner side wall of the lifting box (3) is arranged in the lifting box (3), the lead screw (5) is arranged below the lifting box (3), one end of the lead screw (5) penetrates through the lifting box (3) and is fixedly connected with the output end of the motor (7), the threaded block (6) is connected to the outer side of the lead screw (5) in a threaded manner, the lifting plate (8) without a gap in the inner side wall of the lifting box (3) is arranged above the partition plate (4), and hydraulic oil is filled in the inner space of the lifting box (3) on the lower side of the lifting plate (8) and on the left side of.

3. The double-sided teaching blackboard convenient to use according to claim 2, wherein the limiting component (16) comprises an extending plate (17), a guide hole (18), a limiting rod (19), a pull rod (20), a spring (21) and a rubber block (22), the extending plate (17) is symmetrically arranged on the upper portion of the upright rod (11) in the front-back direction, the transverse guide hole (18) is formed in the extending plate (17), the limiting rod (19) is movably connected in the guide hole (18), the pull rod (20) is arranged at the left end of the limiting rod (19), the limiting rod (19) is fixedly connected with the upright rod (11) through the spring (21), and the rubber block (22) is installed on one side, close to the double-sided blackboard (14), of the limiting rod (19).

4. The double-sided teaching blackboard convenient to use according to claim 3, wherein a protruding rod (23) is connected to the left side of the supporting plate (10), and a placing plate (24) is fixedly welded to the top of the protruding rod (23).

5. The double-sided teaching blackboard convenient to use according to claim 3, wherein the limiting rod (19) is a "C" shaped rod.

6. The double-sided teaching blackboard convenient to use according to claim 4, characterized in that the projecting rod (23) is an "L" shaped rod.