Classroom interaction device

Abstract

A classroom interaction device comprises a rectangular bottom plate, moving wheels, a telescopic rod outer sleeve, a telescopic rod inner rod, a hanging rod, a projector, a curtain supporting rod, a positioning rotating plate, a first shaft rod and a rotating clamping base, the lower portion of the rectangular bottom plate is connected with the moving wheels, the multiple moving wheels are distributed at the bottom of the rectangular bottom plate, and the lower portion of the telescopic rod outer sleeve is connected with the rectangular bottom plate; the telescopic rod inner rod is matched with the telescopic rod outer sleeve, the telescopic rod inner rod is inserted into the telescopic rod outer sleeve and slides in the telescopic rod outer sleeve, a plurality of curtain supporting rods are arranged on the side face of the telescopic rod inner rod, telescopic rod outer sleeve side holes are formed in the side face of the telescopic rod outer sleeve, and the telescopic rod inner rod side holes correspond to the telescopic rod outer sleeve side holes. The second side lugs are connected with the telescopic rod outer sleeves, the side faces of the rotating clamping bases are attached to the second side lugs, the second side lugs are distributed on the two sides of the rotating clamping bases, and the rotating clamping bases are connected with the second side lugs through third shaft rods.

Description

Technical Field

[0001] The utility model relates to the field of classroom interaction, in particular to a classroom interaction device. Background Art

[0002] The existing patent (publication number: CN115681717A) proposes an interactive mirror projection device for classroom teaching, including a base, a clamping platform is arranged on the base, the clamping platform includes a storage box, the bottom of the storage box is rotatably connected to the base, the top of the storage box is provided with a movable clamping plate for fixing the vertical projector, and the storage box is installed with a shooting frame group, the shooting frame group includes a stand, the lower end of the stand is connected to the top of the storage box, and the stand is provided with a sliding frame that moves up and down, and the head of the sliding frame is rotatably connected to the reflection frame. This device solves the problem that the existing classroom teaching projection equipment can only be fixed on the wall for use and cannot be flexibly placed according to needs. However, the device only solves the problem of fixing the projector, and the projection screen is still installed and fixed at the podium position and cannot be moved to interact with students. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a classroom interactive device in which a projector and a screen are both arranged in a structure that can be flexibly used and moved, so as to facilitate the interaction between teachers and students during teaching.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A classroom interactive device comprises a rectangular base plate, moving wheels, a telescopic rod outer shell, an inner rod of the telescopic rod, a hanging rod, a projector, a screen support rod, a positioning rotating plate, a No. 1 shaft rod, and a rotating seat. The lower part of the rectangular base plate is connected to the moving wheels, and a plurality of moving wheels are distributed at the bottom of the rectangular base plate. The lower part of the telescopic rod outer shell is connected to the rectangular base plate. The inner rod of the telescopic rod is adapted to the telescopic rod outer shell, the inner rod of the telescopic rod is inserted into the telescopic rod outer shell, and the inner rod of the telescopic rod slides in the telescopic rod outer shell. A plurality of screen support rods are provided on the side of the inner rod of the telescopic rod. A side hole of the telescopic rod outer shell is provided on the side of the telescopic rod. The side hole of the inner rod of the telescopic rod corresponds to the side hole of the telescopic rod outer shell. A No. 2 side ear is connected to the telescopic rod outer shell. The side surface of the rotating seat is fitted with the No. 2 side ear. A group of No. 2 side ears are distributed on both sides of the rotating seat. The rotating seat is connected to the No. 2 side ears through a No. 3 shaft rod. A rotating seat handle is provided on the upper part of the rotating seat. The rotating seat is adapted to the side hole of the telescopic rod outer shell, and the rotating seat is inserted into the side hole of the inner rod of the telescopic rod through the side hole of the telescopic rod outer shell.

[0006] The upper part of the inner rod of the telescopic rod is provided with a side mounting seat, and two groups of symmetrical mounting seat side ears are provided on both sides of the side mounting seat. The side surfaces of the curtain support rods are fitted with the mounting seat side ears, and the curtain support rods are connected to the mounting seat side ears through a No. 1 shaft rod. A group of curtain support rods are symmetrically arranged at both ends of the side mounting seat, and the No. 2 shaft rod is connected to the curtain support rod, and the curtain support rod is connected to the positioning rotating plate through the No. 2 shaft rod.

[0007] The positioning rotating plate has a positioning rotating plate side block, the side mounting seat has a card slot, and there are yielding slots on both sides of the card slot. The positioning rotating plate is adapted to the yielding slot, the positioning rotating plate is inserted into the yielding slot, the positioning rotating plate side blocks are adapted to the card slot, the positioning rotating plate side blocks are inserted into the card slot, a group of positioning rotating plate side blocks are symmetrically arranged inside the card slot, the two ends of the curtain are installed on symmetrical curtain support rods, and the middle position of the curtain is installed at the lower part of the side mounting seat.

[0008] The suspension rod is adapted to the inner rod of the telescopic rod, the suspension rod is inserted into the inner rod of the telescopic rod, the suspension rod has a suspension rod convex ring, the lower surface of the suspension rod convex ring fits with the inner rod of the telescopic rod, the side of the suspension rod has a suspension rod side plate, the projector is installed on the suspension rod side plate, and the projector is directly above the screen. Beneficial Effects

[0009] The swivel base is connected to the bottom of the rectangular base plate by a plurality of movable wheels, so that the whole device can be easily moved. The outer sleeve of the telescopic rod and the inner sleeve of the telescopic rod form a telescopic rod, and the telescopic rod is fixed on the rectangular base plate. The rotating card seat is connected to the second side ear through the third shaft rod, so that the rotating card seat can be fixed and rotated at the same time. The rotating card seat is rotated to make the rotating card seat pass through the side hole of the outer sleeve of the telescopic rod and insert into the side hole of the inner sleeve of the telescopic rod. Under the downward pressure of the inner sleeve of the telescopic rod, the rotating card seat is clamped in the side hole of the inner sleeve of the telescopic rod, so as to prevent the rotating card seat from rotating out of the side hole of the inner sleeve of the telescopic rod during classroom interaction. The length of the telescopic rod is limited by plugging the rotating card seat with the side holes of the inner sleeve of the telescopic rod at different positions. The curtain support rod is connected to the side ear of the mounting seat through the first shaft rod, so that the symmetrical curtain support rod is fixed on the upper part of the telescopic rod. The positioning rotating plate is connected to the axis of the curtain support rod. When the curtain support rod is rotated to a horizontal state, the positioning rotating plate is rotated to make the side block of the positioning rotating plate insert into the card slot. The positioning rotating plate is used to prevent the curtain support rod from rotating downward during classroom interaction, so as to ensure the horizontal state of the curtain support rod.

[0010] 2. The utility model opens the symmetrical curtain support rods horizontally, so that the upper two corners of the curtain fixed on the symmetrical curtain support rods are unfolded, and the middle of the upper part of the curtain is fixed by the side mounting seat, so that the curtain remains flat when unfolded, and the picture projected thereon is clearer. The suspension rod is fixed on the telescopic rod, and the convex ring of the suspension rod prevents the suspension rod from sliding downward during classroom interaction. The side plate of the suspension rod supports the projector. When in use, the projector projects the picture on the curtain. The projector is placed above the curtain to prevent the picture on the curtain from being blocked during classroom interaction, so that students sitting in the classroom can Students can watch better. This device is set to a retractable structure. The height of the screen can be adjusted according to the use environment. At the same time, the symmetrical screen support rods are set to a rotatable structure. After completing the teaching, the symmetrical screen support rods are rotated so that the symmetrical screen support rods are placed vertically on the sides of the telescopic rods, so that the screen is folded between the symmetrical screen support rods for easy storage. This foldable structure is convenient for the storage of the device and reduces the floor space when not in use. The projector and screen of this device are set to a structure that can be flexibly used and moved, which is more convenient for interaction between teachers and students during teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of a classroom interactive device described in the utility model.

[0012] Figure 2 This is a rear view of a classroom interactive device described in the utility model.

[0013] Figure 3 This is a cross-sectional view of a classroom interactive device described in the utility model.

[0014] Figure 4 This is a folded view of a classroom interactive device described in the utility model.

[0015] Figure 5 It is an axonometric view of the telescopic rod outer sleeve and the telescopic rod inner sleeve of the utility model.

[0016] Figure 6 It is a cross-sectional view of the telescopic rod outer sleeve, the telescopic rod inner rod and the rotating clamping seat described in the utility model.

[0017] Figure 7 It is a partial enlarged view of the side mounting seat described in the utility model.

[0018] Figure 8 This is an axonometric view of the curtain support rod described in the present utility model.

[0019] Fig. 9 This is an axonometric view of the positioning rotating plate described in the utility model.

[0020] Fig.10 This is an axonometric view of the suspension rod described in the utility model. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below according to the accompanying drawings and embodiments:

[0022] Embodiment 1:

[0023] A classroom interactive device, including a rectangular bottom plate 01, a moving wheel 02, a telescopic rod outer cover 03, a telescopic rod inner rod 04, a hanging rod 05, a projector 08, a screen support rod 09, a positioning rotating plate 16, a No. 1 shaft rod 18, and a rotating card seat 21. The lower part of the rectangular bottom plate 01 is connected to the moving wheel 02, and a plurality of moving wheels 02 are distributed at the bottom of the rectangular bottom plate 01. The plurality of moving wheels 02 are installed and fixed at the bottom of the rectangular bottom plate 01 so that the whole device can be easily moved. The lower part of the telescopic rod outer cover 03 is connected to the rectangular bottom plate 01, the telescopic rod inner rod 04 is adapted to the telescopic rod outer cover 03, the telescopic rod inner rod 04 is inserted into the telescopic rod outer cover 03, the telescopic rod inner rod 04 slides in the telescopic rod outer cover 03, the telescopic rod outer cover 03 and the telescopic rod inner rod 04 form a telescopic rod, and the telescopic rod is fixed on the rectangular bottom plate 01. The side of the telescopic rod inner rod 04 has a plurality of screen support rods 09, and the side of the telescopic rod outer cover 03 has a telescopic rod outer cover The sleeve side hole 20, the inner rod side hole 19 of the telescopic rod corresponds to the outer sleeve side hole 20 of the telescopic rod, the No. 2 side ear 24 is connected to the telescopic rod outer sleeve 03, the side of the rotating seat 21 is fitted with the No. 2 side ear 24, a group of No. 2 side ears 24 are distributed on both sides of the rotating seat 21, the rotating seat 21 is connected to the No. 2 side ear 24 through the No. 3 shaft rod 23, so that the rotating seat 21 is fixed and rotatable at the same time, and a rotating seat handle 22 is provided on the upper part of the rotating seat 21, the rotating seat 21 is adapted to the side hole 20 of the telescopic rod outer sleeve, the rotating seat 21 passes through the side hole 20 of the telescopic rod outer sleeve and is inserted into the inner rod side hole 19 of the telescopic rod, and under the downward pressure of the inner rod 04 of the telescopic rod, the rotating seat 21 is stuck in the inner rod side hole 19 of the telescopic rod, so as to prevent the rotating seat 21 from rotating out of the inner rod side hole 19 of the telescopic rod during classroom interaction, and the length of the telescopic rod is limited by plugging the rotating seat 21 with the inner rod side holes 19 of the telescopic rod at different positions.

[0024] Embodiment 2:

[0025] The upper part of the inner rod 04 of the telescopic rod of the utility model is provided with a side mounting seat 10, and two groups of symmetrical mounting seat side ears 13 are provided on both sides of the side mounting seat 10. The side surfaces of the curtain support rod 09 are fitted with the mounting seat side ears 13, and the curtain support rod 09 is connected to the mounting seat side ears 13 through a No. 1 shaft rod 18, so that the symmetrical curtain support rods 09 are fixed to the upper part of the telescopic rod, a group of curtain support rods 09 are symmetrically arranged at both ends of the side mounting seat 10, a No. 2 shaft rod 15 is connected to the curtain support rod 09, and the curtain support rod 09 is connected to the positioning rotating plate 16 through the No. 2 shaft rod 15.

[0026] Embodiment 3:

[0027] The utility model described positioning rotating plate 16 has positioning rotating plate side block 17, side mounting seat 10 has card slot 11, card slot 11 has two sides with make way slot 12, positioning rotating plate 16 is adapted to make way slot 12, positioning rotating plate 16 is inserted into make way slot 12, positioning rotating plate side block 17 is adapted to card slot 11, positioning rotating plate side block 17 is inserted into card slot 11, a group of positioning rotating plate side block 17 is symmetrically arranged inside card slot 11, when curtain support rod 09 is rotated to horizontal state, rotating positioning rotating plate 16 makes positioning rotating plate side block 1 7 is inserted into the card slot 11, and the positioning rotating plate 16 is used to prevent the curtain support rod 09 from rotating downward during classroom interaction, so as to ensure the horizontal state of the curtain support rod 09. The two ends of the curtain are mounted on the symmetrical curtain support rods 09, and the middle position of the curtain is mounted on the lower part of the side mounting seat 10. The symmetrical curtain support rods 09 are opened horizontally, so that the upper two corners of the curtain fixed on the symmetrical curtain support rods 09 are unfolded, and the upper middle part of the curtain is fixed by the side mounting seat 10, so that the curtain remains flat when unfolded, and the picture projected thereon is clearer.

[0028] Embodiment 4:

[0029] The utility model describes a suspension rod 05 adapted to the inner rod 04 of the telescopic rod, the suspension rod 05 is inserted into the inner rod 04 of the telescopic rod, the suspension rod 05 is fixed on the telescopic rod, the suspension rod 05 has a suspension rod convex ring 06, the suspension rod convex ring 06 prevents the suspension rod 05 from sliding downward during classroom interaction, the lower surface of the suspension rod convex ring 06 fits with the inner rod 04 of the telescopic rod, the side of the suspension rod 05 has a suspension rod side plate 07, the projector 08 is mounted on the suspension rod side plate 07, the projector 08 is directly above the screen, the suspension rod side plate 07 supports the projector 08, the projector 08 projects the picture on the screen when in use, the projector 08 is placed above the screen, during classroom interaction This prevents the picture on the screen from being blocked, so that students sitting in the classroom can watch it better. This device is arranged into a retractable structure, and the height of the screen can be adjusted according to the use environment. At the same time, the symmetrical screen support rods 09 are arranged with a rotatable structure. After the teaching is completed, the symmetrical screen support rods 09 are rotated so that the symmetrical screen support rods 09 are vertically placed on the sides of the telescopic rods, so that the screen is folded between the symmetrical screen support rods 09 for easy storage. This foldable structure is convenient for the storage of the device and reduces the floor space occupied when not in use. The projector and screen of this device are arranged into a structure that can be flexibly used and moved, which is more convenient for interaction with teachers and students during teaching.

[0030] Embodiment 5:

[0031] The utility model installation steps are as follows: first, the rotating card seat 21 is connected to the second side ear 24 through the third shaft rod 23, the telescopic rod inner rod 04 is inserted into the telescopic rod outer sleeve 03, so that the telescopic rod inner rod side hole 19 corresponds to the telescopic rod outer sleeve side hole 20, the rotating card seat 21 is inserted into the telescopic rod inner rod side hole 19 through the telescopic rod outer sleeve side hole 20, the lower part of the telescopic rod outer sleeve 03 is connected to the rectangular bottom plate 01, the lower part of the rectangular bottom plate 01 is connected to the moving wheel 02, and the curtain support rod 09 is connected to the mounting seat through the first shaft rod 18. The side ear 13 connects the positioning rotating plate 16 to the screen support rod 09 through the second shaft rod 15, fixes the two ends of the upper part of the screen on the symmetrical screen support rods 09, fixes the middle position of the upper part of the screen on the lower part of the side mounting seat 10, rotates the screen support rod 09 to a horizontal position, rotates the positioning rotating plate 16 to insert the positioning rotating plate side block 17 into the card slot 11, places the projector 08 on the suspension rod side plate 07, inserts the suspension rod 05 into the telescopic rod inner rod 04, and makes the upper surface of the telescopic rod inner rod 04 fit with the suspension rod convex ring 06.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A classroom interactive device, characterized by : It comprises a rectangular bottom plate (01), a moving wheel (02), a telescopic rod outer cover (03), a telescopic rod inner rod (04), a hanging rod (05), a projector (08), a screen support rod (09), a positioning rotating plate (16), a first shaft rod (18), and a rotating base (21), wherein the lower part of the rectangular bottom plate (01) is connected to the moving wheel (02), a plurality of moving wheels (02) are distributed at the bottom of the rectangular bottom plate (01), the lower part of the telescopic rod outer cover (03) is connected to the rectangular bottom plate (01), the telescopic rod inner rod (04) is adapted to the telescopic rod outer cover (03), the telescopic rod inner rod (04) is inserted into the telescopic rod outer cover (03), the telescopic rod inner rod (04) slides in the telescopic rod outer cover (03), and the side of the telescopic rod inner rod (04) has a plurality of A curtain support rod (09), a telescopic rod outer sleeve (03) has a telescopic rod outer sleeve side hole (20), the telescopic rod inner rod side hole (19) corresponds to the telescopic rod outer sleeve side hole (20), a second side ear (24) is connected to the telescopic rod outer sleeve (03), a rotating card seat (21) is fitted with the second side ear (24) on the side, a group of second side ears (24) are distributed on both sides of the rotating card seat (21), the rotating card seat (21) is connected to the second side ear (24) through a third shaft rod (23), a rotating card seat handle (22) is provided on the upper part of the rotating card seat (21), the rotating card seat (21) is adapted to the telescopic rod outer sleeve side hole (20), and the rotating card seat (21) passes through the telescopic rod outer sleeve side hole (20) and is inserted into the telescopic rod inner rod side hole (19).

2. A classroom interactive device according to claim 1, characterized in that The inner rod (04) of the telescopic rod has a side mounting seat (10) at the upper part, and two groups of symmetrical mounting seat side ears (13) are provided on both sides of the side mounting seat (10). The side of the curtain support rod (09) is in contact with the mounting seat side ears (13), and the curtain support rod (09) is connected to the mounting seat side ears (13) through a first shaft rod (18). A group of curtain support rods (09) are symmetrically arranged at both ends of the side mounting seat (10), and a second shaft rod (15) is connected to the curtain support rod (09). The curtain support rod (09) is connected to the positioning rotating plate (16) through the second shaft rod (15).

3. A classroom interactive device according to claim 2, characterized in that The positioning rotating plate (16) has a positioning rotating plate side block (17), the side mounting seat (10) has a slot (11), and the slot (11) has a clearance slot (12) on both sides. The positioning rotating plate (16) is adapted to the clearance slot (12), the positioning rotating plate (16) is inserted into the clearance slot (12), the positioning rotating plate side block (17) is adapted to the slot (11), the positioning rotating plate side block (17) is inserted into the slot (11), a group of positioning rotating plate side blocks (17) are symmetrically arranged inside the slot (11), the two ends of the curtain are mounted on symmetrical curtain support rods (09), and the middle position of the curtain is mounted on the lower part of the side mounting seat (10).

4. A classroom interactive device according to claim 3, characterized in that The suspension rod (05) is adapted to the inner rod (04) of the telescopic rod, the suspension rod (05) is inserted into the inner rod (04) of the telescopic rod, the suspension rod (05) has a suspension rod convex ring (06), and the lower surface of the suspension rod convex ring (06) is in contact with the inner rod (04) of the telescopic rod.

5. A classroom interactive device according to claim 4, characterized in that The side of the suspension rod (05) is provided with a suspension rod side plate (07), and the projector (08) is mounted on the suspension rod side plate (07), and the projector (08) is directly above the screen.

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