CN216249649U - Movable teaching board - Google Patents

Abstract

The utility model relates to a movable teaching board, and belongs to the technical field of teaching aids. The problem of the device whole removal inconvenient, when need not the large tracts of land and write, the frame still occupies great space after the teaching board is folding is solved. The teaching board and the moving frame are installed; the teaching board includes main teaching board, vice teaching board and gear, main teaching board includes preceding clipboard, main support and main rack, preceding clipboard and main support, main rack is connected, vice teaching board includes the back clipboard, auxiliary stand and vice rack, the front and back of auxiliary stand is connected with back clipboard and vice rack respectively, it passes through key shaft and gear connection to remove the frame, remove frame and main support, auxiliary stand sliding connection, main rack, vice rack all with gear engagement, preceding clipboard is located the place ahead of back clipboard. The movable writing board has the advantages that the movable writing board is convenient to move, when the space is saved, the rear side of the front writing board can be retracted to the rear writing board, occupied space is reduced, and the movable writing board is convenient to move, store and use.

Description

Movable teaching board

Technical Field

The utility model relates to a movable teaching board, and belongs to the technical field of teaching aids.

Background

The teaching board is a plane board capable of writing repeatedly, plays an important role in ensuring that students receive, understand and record teaching contents, is convenient for teachers to explain knowledge, and promotes teachers to improve teaching quality. The existing teaching boards are various in types, for example: the utility model discloses a combined push-pull type teaching board with publication number CN210759946U, which is characterized in that the teaching board moves on a frame through a guide seat combination, but has the following defects:

1. the writing area is limited, the height difference exists between the two teaching boards, and under the condition that the writing area is large, the height difference not only influences the writing of teachers, but also influences the watching of students;

2. the device is inconvenient to move integrally, and when large-area writing is not needed, the frame still occupies a large space after the teaching board is folded.

Therefore, a mobile teaching board is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problems that the whole device is inconvenient to move, and the frame still occupies a large space after the teaching board is folded when large-area writing is not needed. The following presents a simplified summary of the utility model in order to provide a basic understanding of some aspects of the utility model. It should be understood that this summary is not an exhaustive overview of the utility model. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention.

The technical scheme of the utility model is as follows:

a movable teaching board comprises a teaching board and a movable frame, wherein the teaching board and the movable frame are installed; the teaching board includes main teaching board, vice teaching board and gear, and main teaching board includes preceding clipboard, main support and main rack, preceding clipboard is connected with the main support, and preceding clipboard is connected with main rack, and vice teaching board includes back clipboard, auxiliary stand and vice rack, and the front and back of auxiliary stand is connected with back clipboard and vice rack respectively, removes the frame and passes through key shaft and gear connection, removes frame and main support, auxiliary stand sliding connection, and main rack, vice rack all with gear engagement, preceding clipboard passes through the extension plate with the main support and is connected, and preceding clipboard is located the place ahead of back clipboard.

Preferably: the main teaching board further comprises a stop block, the stop block is connected with the front writing board, the auxiliary teaching board comprises connecting rods and four, the connecting rods are arranged in an array mode, the two ends of each connecting rod are respectively hinged to the rear writing board and the auxiliary support, and the stop block is located between the two connecting rods of the horizontal direction array.

Preferably: the upper and lower both ends of main support, auxiliary stand all are provided with the pulley, it includes upper portion support, removal landing leg and slide to remove the frame, the upper portion support includes upper portion connecting plate, lower part connecting plate and pole setting, upper portion connecting plate, lower part connecting plate are welded respectively at two parallel arrangement's pole setting both ends, and upper portion connecting plate, lower part connecting plate parallel arrangement, and the lower part welding of lower part connecting plate has the removal landing leg, and the lower part of removing the landing leg is provided with the universal wheel, and the upper portion support mounting is provided with the slide on removing landing leg upper portion, and the upper portion support corresponds the position with the pulley.

Preferably: the edge of the front writing board has a chamfer.

The utility model has the following beneficial effects:

1. when large-area writing is needed, the rear writing board can be pulled, the gear is driven by the rear writing board to rotate through the auxiliary rack, the gear drives the main rack to realize reverse movement of the main support and the auxiliary support, so that the writing board and the rear writing board move in a reverse direction, when the connecting rods are contacted with the stop block, the four connecting rods rotate simultaneously to move the rear writing board forwards, so that the rear writing board and the front writing board are positioned on the same plane, the influence on teacher writing and student watching is prevented, the teaching quality is improved, and the students can conveniently understand and record;

2. the device is convenient to move, and when the space is saved, the rear side of the front writing board can be retracted to the rear writing board, so that the occupied space is reduced, and the device is convenient to move, store and use.

Drawings

Fig. 1 is a perspective view of a movable teaching board;

FIG. 2 is a front view of a portable teaching board;

FIG. 3 is a rear view of a portable teaching board;

FIG. 4 is a perspective view of the teaching board;

FIG. 5 is an enlarged view at A in FIG. 4;

FIG. 6 is an enlarged view at B in FIG. 4;

FIG. 7 is a top view of the teaching board;

in the figure, 1-teaching board, 2-moving frame, 11-main teaching board, 12-auxiliary teaching board, 13-gear, 14-pulley, 111-front writing board, 112-main bracket, 113-main rack, 114-stop, 121-rear writing board, 122-auxiliary bracket, 123-auxiliary rack and 124-connecting rod.

Detailed Description

In order that the objects, aspects and advantages of the utility model will become more apparent, the utility model will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 7, and the movable teaching board of the embodiment comprises a teaching board 1 and a movable frame 2, wherein the teaching board 1 and the movable frame 2 are installed; the teaching board 1 comprises a main teaching board 11, an auxiliary teaching board 12 and a gear 13, wherein the main teaching board 11 comprises a front writing board 111, a main bracket 112 and a main rack 113, the front writing board 111 is connected with the main bracket 112, the front writing board 111 is connected with the main rack 113, the auxiliary teaching board 12 comprises a rear writing board 121, an auxiliary bracket 122 and an auxiliary rack 123, the front and rear surfaces of the auxiliary bracket 122 are respectively connected with the rear writing board 121 and the auxiliary rack 123, a movable frame 2 is connected with the gear 13 through a key shaft, the movable frame 2 is slidably connected with the main bracket 112 and the auxiliary bracket 122, the main rack 113 and the auxiliary rack 123 are both meshed with the gear 13, the front writing board 111 is connected with the main bracket 112 through an extension board 115, and the front writing board 111 is positioned in front of the rear writing board 121; pulleys 14 are arranged at the upper end and the lower end of each of the main support 112 and the auxiliary support 122, the movable frame 2 comprises an upper support 21, a movable supporting leg 22 and a slideway 23, the upper support 21 comprises an upper connecting plate, a lower connecting plate and an upright, the two ends of the two upright arranged in parallel are respectively welded with the upper connecting plate and the lower connecting plate, the upper connecting plate and the lower connecting plate are arranged in parallel, the movable supporting leg 22 is welded at the lower part of the lower connecting plate, universal wheels are arranged at the lower part of the movable supporting leg 22, the upper support 21 is arranged at the upper part of the movable supporting leg 22, and the slideway 23 is arranged at the position of the upper support 21 corresponding to the pulley 14; the device is convenient to move, and when the space is saved, the rear writing board 121 can be retracted to the rear side of the front writing board 111, so that the occupied space is reduced.

The second embodiment is as follows: the embodiment is described with reference to fig. 1 to 7, and the movable teaching board of the embodiment comprises a teaching board 1 and a movable frame 2, wherein the teaching board 1 and the movable frame 2 are installed; the teaching board 1 includes a main teaching board 11, a sub-teaching board 12, and a gear 13, the main teaching board 11 includes a front writing board 111, a main supporter 112, and a main rack 113, the front writing board 111 is connected with the main support 112, the front writing board 111 is connected with the main rack 113, the auxiliary teaching board 12 comprises a rear writing board 121, an auxiliary support 122 and an auxiliary rack 123, the front and rear surfaces of the auxiliary support 122 are respectively connected with the rear writing board 121 and the auxiliary rack 123, the movable frame 2 is connected with the gear 13 through a key shaft, the upper end and the lower end of the key shaft are connected with the movable frame 2 through bearings, the movable frame 2 is slidably connected with the main support 112 and the auxiliary support 122, the main rack 113 and the auxiliary rack 123 are both meshed with the gear 13, the front writing board 111 is connected with the main support 112 through an extension board 115, the front writing board 111 is positioned in front of the rear writing board 121, the lower parts of the front writing board 111 and the rear writing board 121 are provided with support wheels, and the support wheels are positioned on a lower connecting board; the main teaching board 11 further comprises a stop block 114, the stop block 114 is connected with the front writing board 111, the secondary teaching board 12 comprises connecting rods 124, the four connecting rods 124 are arranged in an array, two ends of each connecting rod 124 are respectively hinged with the rear writing board 121 and the secondary bracket 122, and the stop block 114 is positioned between the two connecting rods 124 in the horizontal direction array; pulleys 14 are arranged at the upper end and the lower end of each of the main support 112 and the auxiliary support 122, the movable frame 2 comprises an upper support 21, a movable supporting leg 22 and a slideway 23, the upper support 21 comprises an upper connecting plate, a lower connecting plate and an upright rod, the two ends of the two upright rods arranged in parallel are respectively welded with the upper connecting plate and the lower connecting plate, the upper connecting plate and the lower connecting plate are arranged in parallel, the movable supporting leg 22 is welded at the lower part of the lower connecting plate, a universal wheel is arranged at the lower part of the movable supporting leg 22, the upper support 21 is arranged at the upper part of the movable supporting leg 22, and the slideway 23 is arranged at the position of the upper support 21 corresponding to the pulley 14, so that the guide and wear reduction effects are achieved; the edge of the front writing board 111 is provided with a chamfer, so that the rear writing board 121 can be conveniently retracted when the occupied area of the device needs to be reduced; when the needs large tracts of land are write, writing board 121 after can pulling, writing board 121 after drives gear 13 through auxiliary rack 123 and rotates, gear 13 drives main rack 113 and realizes the reverse motion of main support 112 and auxiliary support 122, make writing board 111 and back writing board 121 reverse motion, when connecting rod 124 and dog 114 contact, four connecting rod 124 rotate simultaneously, writing board 121 after will removes to the place ahead for back writing board 121 is located the coplanar with preceding writing board 111, for example in english teaching, can provide sufficient writing space for the teacher, prevent to write to the teacher, the student watches and produces the influence, improve teaching quality, the student of being convenient for understands the record.

It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore, the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.

This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.

Claims (4)

1. A portable teaching board which characterized in that: the teaching board comprises a teaching board (1) and a movable frame (2), wherein the teaching board (1) and the movable frame (2) are installed; teaching board (1) is including main teaching board (11), vice teaching board (12) and gear (13), and main teaching board (11) is including preceding clipboard (111), main support (112) and main rack (113), preceding clipboard (111) are connected with main support (112), and preceding clipboard (111) are connected with main rack (113), and vice teaching board (12) are including back clipboard (121), auxiliary stand (122) and auxiliary rack (123), and the front and back of auxiliary stand (122) is connected with back clipboard (121) and auxiliary rack (123) respectively, removes frame (2) and is connected with gear (13) through the axle, removes frame (2) and main support (112), auxiliary stand (122) sliding connection, and main rack (113), auxiliary rack (123) all mesh with gear (13), and preceding clipboard (111) are located the place ahead of back clipboard (121).

2. A mobile teaching board according to claim 1 wherein: the main teaching board (11) further comprises a stop block (114), the stop block (114) is connected with the front writing board (111), the auxiliary teaching board (12) comprises four connecting rods (124), the four connecting rods (124) are arranged in an array mode, two ends of each connecting rod (124) are respectively hinged to the rear writing board (121) and the auxiliary support (122), and the stop block (114) is located between the two connecting rods (124).

3. A mobile teaching board according to claim 1 wherein: the upper end and the lower end of the main support (112) and the auxiliary support (122) are respectively provided with a pulley (14), the moving frame (2) comprises an upper support (21), a moving support leg (22) and a slide way (23), the upper support (21) is arranged on the upper portion of the moving support leg (22), and the slide way (23) is arranged at the position, corresponding to the pulley (14), of the upper support (21).

4. A mobile teaching board according to claim 2 or 3, wherein: the edge of the front writing plate (111) has a chamfer.

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