CN214324729U - Projection board is used in english online teaching - Google Patents

Abstract

The utility model relates to a projection board for English online teaching, which comprises a projection board body, wherein the bottom of the projection board body is connected with a supporting leg, and the upper part of the front side of the projection board body is connected with a curtain hook for placing an electric curtain; transparent side sliding tray has been seted up to projection board side, sliding tray sliding connection has the clipboard in the side sliding tray. This projection board unites two into one projection frame and clipboard, can be used for placing the curtain, can write as the clipboard again, satisfies the needs of english on-line teaching, and occupation space is little, and the teaching is with low costs.

Description

Projection board is used in english online teaching

Technical Field

The utility model relates to an english online teaching auxiliary device field specifically is a projection board is used in english online teaching.

Background

With the rapid development of information technology, especially from the internet to the mobile internet, cross-space life, work and learning modes are created, and the mode of acquiring knowledge is fundamentally changed. The teaching and learning can be free from the limitation of time, space and place conditions, and the knowledge acquisition channel is flexible and diversified. English online teaching is a teaching mode taking a network as a medium, and English teaching activities can be developed even if students and teachers are separated by ten thousand distances through the network.

English online teaching meeting in classroom uses projection equipment, projects the teaching image through the projecting apparatus and supplies the student to watch and the on-the-spot mr guides on the curtain. The curtain is generally hung on a wall, a projection frame or a projection plate, and the curtain is good in stability when being hung on the wall, but poor in maneuverability and incapable of adjusting the viewing angle; when hanging on projection frame or projection board, because can use the further detailed explanation of content in the writing board to remote teaching between on-the-spot mr and the student, better let the student understand and understand, and projection frame or projection board can't satisfy the requirement of writing, still need use special writing board in addition, not only occupation space, improved the teaching cost moreover.

Disclosure of Invention

For overcoming the above-mentioned problem that exists among the prior art, the utility model provides a projection board is used in english online teaching unites two into one projection frame and clipboard, can be used for placing the curtain, can write as the clipboard again, satisfies the needs of english online teaching, and occupation space is little, and teaching cost is low.

The utility model discloses a realize through following technical scheme:

a projection plate for English online teaching comprises a projection plate body, wherein the bottom of the projection plate body is connected with a supporting leg, and a curtain hook for placing an electric curtain is connected above the front side of the projection plate body; transparent side sliding tray has been seted up to projection board side, sliding tray sliding connection has the clipboard in the side sliding tray.

Preferably, the inner sides of the top surface and the bottom surface of the writing board are connected with limiting slide rods, and sliding limiting grooves capable of containing the limiting slide rods are arranged above and below the side sliding grooves.

Preferably, the limiting slide rod is a bolt rod, and a stop nut is connected to the limiting slide rod through threads.

Preferably, projection plate body below is connected with heightening subassembly, heightening subassembly includes rotatable coupling in the left right hand screw rod of landing leg, left side right hand screw rod's left side section and right side section screw thread are revolved to opposite and left side section and right side section on equal screw-thread fit be connected with the slider, it is equipped with the slide bar of equidirectional connection on the landing leg to control spiral screw rod one side, slider sliding connection is in the slide bar, the slider bottom articulates through the articulated mast has the backup pad down.

Preferably, the bottom surface of the supporting leg is rotatably connected with a wheel.

Preferably, a sundries box is connected to the lower portion of the front side of the projection plate body.

The utility model has the advantages that:

1. the projection plate body front side top is connected with the curtain couple that is used for placing electronic curtain, and penetrating side sliding tray has been seted up to projection plate body side, and sliding connection has the clipboard in the side sliding tray. The electric curtain is placed on the curtain hook for projection, and when the writing board is used for further elaboration of online contents, the writing board is pulled out from the side for writing. This projection board unites two into one projection plate body and clipboard, can be used for placing the curtain, can write as the clipboard again, satisfies the needs of english online teaching, and but clipboard pull storage is in the projection board, saves space.

2. The top surface and the bottom surface of the writing board are connected with limiting slide rods, and sliding limiting grooves capable of containing the limiting slide rods are arranged above and below the side sliding grooves. The writing board is not pulled out entirely when being pulled outwards, and when being pulled to the end, the writing board rotates, so that the writing board can be displayed to students at a better angle.

3. The limiting slide rod is a bolt rod, a stop nut is connected to the limiting slide rod through threads, the writing board can be fixed in the side sliding groove after the stop nut is screwed down, and the writing board is prevented from sliding out of one side when the projection board is moved; after the writing board is pulled outward to the bottom and the rotation angle of the writing board is adjusted, the jam nut is tightened to keep the writing board at the angle.

4. Projection plate body below is connected with the height-adjusting subassembly, and two sliders move to opposite direction about the spiral screw drives through rotating, and two sliders drive the hinge bar and push down the bottom suspension fagging, and this projection board of jack-up in the opposite direction realizes the altitude mixture control of projection board for the image projection of better adaptation projecting apparatus in the electronic curtain height, the mr that adapts to different heights simultaneously writes on the clipboard more comfortablely.

5. The bottom surfaces of the supporting legs are rotatably connected with wheels, so that the projection plate can move more conveniently.

6. A sundries box is connected to the lower portion of the front side of the projection board body, and therefore a teacher can conveniently and temporarily store the blackboard eraser or the fountain pen and the like on site.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic top view of the present invention.

Fig. 4 is a schematic perspective view of the present invention.

Fig. 5 is a schematic perspective view of the present invention.

In the figure, 1-projection plate body, 11-curtain hook, 12-side sliding groove, 13-sliding limiting groove, 14-supporting leg, 15-wheel, 2-electric curtain, 3-writing board, 31-limiting sliding rod, 32-stop nut, 4-heightening component, 41-left-right-handed screw, 42-sliding block, 43-hinged rod, 44-lower supporting plate, 45-sliding rod, 46-crank and 5-sundry box.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, the utility model relates to a projection board is used in english online teaching, including projection plate body 1, projection plate body 1 is ordinary blank, and projection plate body 1 bottom is connected with landing leg 14 as supporting. The projection plate body 1 front side top is connected with the curtain couple 11 that is used for placing electronic curtain 2, like figure 4, when needs online teaching projection, places electronic curtain 2 both ends on curtain couple 11.

The side of the projection board body 1 is provided with a left and right through side sliding groove 12, and the writing board 3 is connected in the side sliding groove 12 in a sliding way. In the present embodiment, as shown in fig. 4, two writing boards 3 are symmetrically disposed on the left and right sides in the side sliding grooves 12, and a teacher on the spot can write explanations on the writing boards 3 while standing on the left and right sides of the projection board.

The inner sides of the top surface and the bottom surface of the writing board 3 are connected with limiting slide rods 31, sliding limiting grooves 13 capable of accommodating the limiting slide rods 31 are arranged above and below the side sliding grooves 12, and the left side and the right side of each sliding limiting groove 13 are not through, so that when the writing board 3 is pulled outwards, the whole writing board 3 cannot be pulled out due to the blocking of the end parts of the sliding limiting grooves 13; and when the writing board 3 is pulled outward to the bottom, the writing board 3 can be rotated at a certain angle as shown in fig. 5 so as to be displayed to the student at a better angle.

The limiting slide rod 31 is a bolt rod, specifically, only the limiting slide rod 31 on the top surface of the writing board 3 needs to be a bolt rod, and a stop nut 32 is connected to the limiting slide rod 31 through a thread, as shown in fig. 4 or 5, after the stop nut 32 is screwed down, the writing board 3 can be fixed in the side sliding groove 12, so that the writing board 3 is prevented from sliding out when the projection board is moved; or after the rotation angle of the tablet 3 is adjusted, the stopper nut 32 is tightened so that the tablet 3 is held at the angle.

A height-adjusting component 4 is connected below the projection plate body 1, as shown in fig. 4, the height-adjusting component 4 comprises a left-handed screw 41 and a right-handed screw 41 which are rotatably connected to the supporting legs 14, one end of the left-handed screw 41 and one end of the right-handed screw 41 are connected with a crank 46, the left section and the right section of the left-handed screw 41 are opposite in thread direction, the left section and the right section of the left-handed screw 41 are both connected with a sliding block 42 in a thread fit manner, specifically, the left section of the left-handed screw 41 is provided with a left-handed thread, the right section of the left-handed screw is provided with a right-handed thread, and similarly, the left-handed thread hole is formed in the sliding block 42 on the left side, and the right-handed thread hole is formed in the sliding block 42 on the right side; a slide rod 45 connected to the landing leg 14 in the same direction is arranged on one side of the left-right screw 41, and the slide block 42 is connected to the slide rod 45 in a sliding manner, so that the left-right screw 41 can drive the left slide block 42 and the right slide block 42 to move in the opposite direction or in the opposite direction; the bottoms of the sliding blocks 42 on the left side and the right side are symmetrically hinged with a lower supporting plate 44 through hinge rods 43, the upper ends of the hinge rods 43 are hinged with the sliding blocks 42, and the lower ends of the hinge rods are hinged with the lower supporting plate 44. When the height of the projection plate needs to be adjusted upwards, the left-right screw rod 41 is driven to rotate by rotating the crank 46, the left slide block 42 and the right slide block 42 move in opposite directions, the lower support plate 44 is pressed downwards by the hinge rod 43 below the slide blocks 42, the support legs 14 are lifted off, and the projection plate is jacked in the opposite direction, so that the height adjustment of the projection plate is realized, the electric curtain 2 is better suitable for the image projection of a projector, and meanwhile, teachers with different heights are more comfortable to write on the writing plate 3; rotating left and right hand screws 41 in the opposite direction moves lower support plate 44 upward, and legs 14 return to their original height upon landing.

Wheels 15 are rotatably connected to the bottom surfaces of the legs 14, so that the projection board can be moved more conveniently.

A sundries box 5 is connected to the lower portion of the front side of the projection board body, and therefore a teacher on site can conveniently and temporarily store the blackboard eraser or the fountain pen and the like.

In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present invention, but do not require the present invention to be constructed or operated in a specific orientation, and therefore, cannot be construed as limiting the present invention. The terms "connected" and "connected" in the present invention are to be understood in a broad sense, and may be connected or detachably connected, for example; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.

The foregoing is a preferred embodiment of the present invention, and the description of the specific embodiments is only for better understanding of the idea of the present invention. To those skilled in the art, many modifications and equivalents may be made in accordance with the principles of the present invention and are deemed to fall within the scope of the invention.

Claims (6)

1. The utility model provides a projection board is used in online teaching of english, includes projection board body (1), projection board body (1) bottom is connected with landing leg (14), its characterized in that: a curtain hook (11) for placing the electric curtain (2) is connected to the upper part of the front side of the projection plate body (1); transparent side sliding tray (12) have been seted up to projection plate body (1) side, sliding connection has clipboard (3) in side sliding tray (12).

2. The projection plate for English online teaching of claim 1, wherein: the writing board is characterized in that limiting slide rods (31) are connected to the inner sides of the top surface and the bottom surface of the writing board (3), and sliding limiting grooves (13) capable of containing the limiting slide rods (31) are arranged above and below the side sliding grooves (12).

3. The projection plate for English online teaching of claim 2, wherein: the limiting slide rod (31) is a bolt rod, and a stop nut (32) is connected to the limiting slide rod (31) through threads.

4. The projection board for English online teaching according to claim 1 or 3, wherein: projection plate body (1) below is connected with heightening subassembly (4), heightening subassembly (4) is connected with slider (42) including rotatable coupling in the left right hand screw rod (41) of landing leg (14), the left side section and the right side section screw thread of left side right hand screw rod (41) are revolved to opposite and left section and right section on equal screw-thread fit, left side right hand screw rod (41) one side is equipped with slide bar (45) of equidirectional connection on landing leg (14), slider (42) sliding connection is in slide bar (45), slider (42) bottom articulates through hinge bar (43) has backup pad (44) down.

5. The projection plate for English online teaching of claim 4, wherein: the bottom surfaces of the supporting legs (14) are rotatably connected with wheels (15).

6. The projection plate for English online teaching of claim 5, wherein: the lower part of the front side of the projection plate body (1) is connected with a sundries box (5).

Images