CN213565158U

CN213565158U - Double-layer lifting blackboard for school teaching

Info

Publication number: CN213565158U
Application number: CN202021149454.2U
Authority: CN
Inventors: 吴玉军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-06-29
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a teaching of school is with double-deck over-and-under type blackboard, which comprises a wall body, movable mounting has the adjustable shelf on the mount is close to blackboard body one side outer wall, adjusting device around installing between adjustable shelf and the mount, the adjustable shelf is kept away from on the mount one side outer wall symmetry fixed mounting have two fixed plates, two equal movable mounting has the dwang on the fixed plate, two the dwang is close to the common movable mounting of one end and has the cleaning roller, two be equipped with clamping device between the dwang. Has the advantages that: the utility model discloses installed the cleaning roller in the top of blackboard, utilized first motor to drive the cleaning roller, cleared up the blackboard, controlled the interval between cleaning roller and the blackboard by the second motor simultaneously to guarantee the clean that two blackboards all can clear up, the cleaning roller presss from both sides tightly through two splint and installs the spacing mode of stopper simultaneously, makes the convenience very of change cleaning roller.

Description

Double-layer lifting blackboard for school teaching

Technical Field

The utility model relates to an over-and-under type blackboard technical field especially relates to a teaching of school is with double-deck over-and-under type blackboard.

Background

The conventional blackboard capable of moving up and down generally comprises two blackboards which are connected through pulleys and ropes and linked up and down, namely, when one blackboard rises, the other blackboard falls.

In the prior art, the lifting blackboard has large area, time and labor are wasted when the lifting blackboard is cleaned, the whole blackboard can be cleaned up frequently only for a long time, and the blackboard eraser can be cleaned up continuously only by arranging the blackboard eraser for one time in midway sometimes, so that the cleaning effect is general.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the cleaning blackboard is time-consuming and labor-consuming and the cleaning effect is poor in the prior art, and providing a double-layer lifting blackboard for school teaching.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a teaching of school is with double-deck over-and-under type blackboard, includes the wall body, be equipped with blackboard body on the wall body, fixed mounting has the mount on the wall body, movable mounting has the adjustable shelf on being close to blackboard body one side outer wall, adjusting device around installing between adjustable shelf and the mount, the adjustable shelf is kept away from on mount one side outer wall symmetry fixed mounting have two fixed plates, two equal movable mounting has the dwang on the fixed plate, two the dwang is close to the common movable mounting of one end mutually and has the cleaning roller, two be equipped with clamping device between the dwang.

In foretell double-deck over-and-under type blackboard is used in school's teaching, two equal fixed mounting has first bearing on the fixed plate, dwang fixed mounting is on the inner ring of first bearing, and the dwang runs through the inner ring of first bearing, one of them fixed mounting has first motor, one of them on the fixed plate dwang fixed mounting is on the output shaft of first motor.

In foretell double-deck over-and-under type blackboard is used in school's teaching, clamping device includes that two dwangs are close to two mounting grooves that one end symmetry was seted up mutually, two the equal movable mounting in mounting groove has the movable rod, two the movable rod is close to one end mutually and has splint, two equal fixed mounting has the stopper on the outer wall of one side is close to mutually to splint.

In foretell double-deck over-and-under type blackboard is used in school's teaching, fixed mounting has the spring on the inner wall of movable rod one side is kept away from to the mounting groove, mounting groove one end fixed mounting is kept away from to the spring on the outer wall of movable rod.

In foretell double-deck over-and-under type blackboard is used in school's teaching, adjusting device includes that the adjustable shelf is close to the slide bar of fixed mounting on mount one side outer wall, the spout has been seted up on the mount, slidable mounting between slide bar and the spout, the mounting hole has been seted up on mount one side outer wall, fixed mounting has the second bearing on the mounting hole, fixed mounting has the threaded rod on the inner ring of second bearing, set up threaded hole on the slide bar, the threaded mounting between threaded rod and the screw hole, mount one side fixed mounting has the second motor, threaded rod fixed mounting is on the output shaft of second motor.

Compared with the prior art, the utility model discloses the advantage lies in:

1. the utility model discloses installed the cleaning roller above the blackboard, utilized first motor to drive the cleaning roller, cleared up the blackboard, simultaneously controlled the interval between cleaning roller and the blackboard by the second motor to guarantee that two blackboards can all be cleared up totally;

2. the utility model discloses the cleaning roller presss from both sides tight stopper spacing mode simultaneously and installs through two splint for change the convenience very of cleaning roller.

Drawings

FIG. 1 is a front view of a double-layer lifting blackboard for school teaching according to the present invention;

FIG. 2 is a side view of a double-layer lifting blackboard for school teaching according to the present invention;

FIG. 3 is an enlarged view of the structure of part A of a double-layer lifting blackboard for school teaching according to the present invention;

FIG. 4 is an enlarged view of the structure of part B of a double-layer lifting blackboard for school teaching according to the present invention;

fig. 5 is the utility model provides a enlarger of C part structure in double-deck over-and-under type blackboard is used in school's teaching.

In the figure: the blackboard comprises a wall body 1, a blackboard body 2, a fixed frame 3, a movable frame 4, a fixed plate 5, a cleaning roller 6, a rotating rod 7, a first bearing 8, a first motor 9, a mounting groove 10, a spring 11, a movable rod 12, a clamping plate 13, a limiting block 14, a sliding rod 15, a sliding groove 16, a mounting hole 17, a second bearing 18, a threaded rod 19 and a second motor 20.

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.

Referring to fig. 1-5, a double-layer lifting blackboard for teaching in schools comprises a wall body 1, a blackboard body 2 is arranged on the wall body 1, a fixed frame 3 is fixedly arranged on the wall body 1, a movable frame 4 is movably arranged on the outer wall of the fixed frame 3 close to one side of the blackboard body 2, a front and back adjusting device is arranged between the movable frame 4 and the fixed frame 3, the front and back adjusting device comprises a slide rod 15 fixedly arranged on the outer wall of the movable frame 4 close to one side of the fixed frame 3, a slide groove 16 is arranged on the fixed frame 3, the slide rod 15 and the slide groove 16 are slidably arranged, a mounting hole 17 is arranged on the outer wall of one side of the fixed frame 3, a second bearing 18 is fixedly arranged on the mounting hole 17, a threaded rod 19 is fixedly arranged on an inner ring of the second bearing 18, a threaded, threaded rod 19 fixed mounting has been noted on the output shaft of second motor 20, and the cleaning roller 6 has been installed to the top of blackboard, utilizes first motor 9 to drive cleaning roller 6, clears up the blackboard, controls the interval between cleaning roller 6 and the blackboard by second motor 20 simultaneously to guarantee the clean that two blackboards all can clear up, saved the manpower, more improved the efficiency of clearance.

The outer wall of one side of the movable frame 4 far away from the fixed frame 3 is symmetrically and fixedly provided with two fixed plates 5, the two fixed plates 5 are both movably provided with rotating rods 7, the two fixed plates 5 are both fixedly provided with first bearings 8, the rotating rods 7 are fixedly arranged on the inner rings of the first bearings 8, the rotating rods 7 penetrate through the inner rings of the first bearings 8, one fixed plate 5 is fixedly provided with a first motor 9, one rotating rod 7 is fixedly arranged on the output shaft of the first motor 9, the two rotating rods 7 are close to one end and jointly movably provided with a cleaning roller 6, a clamping device is arranged between the two rotating rods 7 and comprises two mounting grooves 10 which are symmetrically arranged close to one end of the two rotating rods 7, the two mounting grooves 10 are both movably provided with movable rods 12, the inner wall of one side of the mounting groove 10 far away from the movable rod 12 is fixedly provided with springs 11, and the end of the spring 11 far, two movable rods 12 are close to one end mutually and are just fixed mounting has splint 13, and two splint 13 are close to equal fixed mounting has stopper 14 on the outer wall of one side mutually, and it is worth noting that clearance roller 6 presss from both sides tightly through two splint 13 and installs while stopper 14 spacing mode for it is very convenient to change clearance roller 6.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

The utility model discloses the theory of operation: the second motor 20 is started firstly, the second motor 20 drives the threaded rod 19 to rotate, thread installation is carried out between the threaded rod 19 and the threaded hole, when the threaded rod 19 rotates, the sliding rod 15 can move back and forth, the front position and the rear position of the movable frame 4 are adjusted, the distance between the cleaning roller 6 and the blackboard is adjusted, after the adjustment is finished, the first motor 9 is started, the first motor 9 drives the rotating rod 7 to rotate, the cleaning roller 6 is driven to rotate through friction force between the clamping plate 13 and the cleaning roller 6, and the blackboard is cleaned.

When the cleaning roller 6 is replaced, the cleaning roller 6 is held, the cleaning roller 6 is soft and is pressed towards one of the movable rods 12, so that the limiting block 14 and the clamping plate 13 on the other side are separated from the cleaning roller 6, and the detached end of the cleaning roller 6 is lifted, so that the other limiting block 14 is separated from the cleaning roller 6, and the detachment is completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a teaching of school is with double-deck over-and-under type blackboard, includes wall body (1), its characterized in that, be equipped with blackboard body (2) on wall body (1), fixed mounting has mount (3) on wall body (1), movable mounting has adjustable shelf (4) on mount (3) is close to blackboard body (2) one side outer wall, adjusting device around installing between adjustable shelf (4) and mount (3), symmetrical fixed mounting has two fixed plate (5), two on fixed plate (5) keep away from mount (3) one side outer wall equal movable mounting has dwang (7), two dwang (7) are close to the common movable mounting of one end mutually and have cleaning roller (6), two be equipped with clamping device between dwang (7).

2. The double-layer lifting blackboard for school teaching according to claim 1, wherein two first bearings (8) are fixedly mounted on the fixing plates (5), the rotating rod (7) is fixedly mounted on an inner ring of the first bearings (8), the rotating rod (7) penetrates through the inner ring of the first bearings (8), one of the first motors (9) is fixedly mounted on the fixing plates (5), and one of the first motors (9) is fixedly mounted on an output shaft of the rotating rod (7).

3. The double-layer lifting blackboard for school teaching according to claim 1, wherein the clamping device comprises two rotating rods (7) which are close to two mounting grooves (10) with one ends symmetrically arranged, two mounting grooves (10) are respectively and movably mounted with a movable rod (12), two movable rods (12) are respectively close to one end of a clamping plate (13), and two clamping plates (13) are respectively and fixedly mounted with a limiting block (14) on the outer wall of one side.

4. The double-layer lifting blackboard for school teaching according to claim 3, wherein a spring (11) is fixedly mounted on the inner wall of one side of the mounting groove (10) far away from the movable rod (12), and one end of the spring (11) far away from the mounting groove (10) is fixedly mounted on the outer wall of the movable rod (12).

5. The double-layered elevating blackboard for school teaching according to claim 1, the front and back adjusting device comprises a sliding rod (15) fixedly arranged on the outer wall of one side of the movable frame (4) close to the fixed frame (3), the fixed frame (3) is provided with a sliding chute (16), the sliding rod (15) and the sliding chute (16) are installed in a sliding way, a mounting hole (17) is formed in the outer wall of one side of the fixing frame (3), a second bearing (18) is fixedly mounted on the mounting hole (17), a threaded rod (19) is fixedly arranged on an inner ring of the second bearing (18), a threaded hole is arranged on the sliding rod (15), the threaded rod (19) and the threaded hole are in threaded mounting, and a second motor (20) is fixedly mounted on one side of the fixing frame (3), and the threaded rod (19) is fixedly mounted on an output shaft of the second motor (20).