Special wireless projection teaching aid for teaching

Abstract

The utility model discloses a wireless projection teaching aid special for teaching, and relates to the technical field of teaching aids. The special wireless projection teaching aid for teaching comprises a wireless projector body, two groups of movable bases, a curtain assembly and a stand column, the two groups of movable bases are arranged below the wireless projector body, and the wireless projector body and the curtain assembly are arranged on the two groups of movable bases respectively and are arranged oppositely. According to the wireless projection teaching aid special for teaching, through the cooperative design of the wireless projector body, the movable base, the curtain assembly, the stand column and the guide rod, the teaching aid can move flexibly and can be used in turns in all classrooms, the input cost can be reduced, the teaching quality can be improved, the classrooms without the projection teaching aid can use intelligent teaching aids, and the teaching efficiency is improved. And the distance between the wireless projector body and the curtain assembly can be adjusted according to use requirements, so that the normal projection picture is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching aids, in particular to a wireless projection teaching aid dedicated to teaching. Background Art

[0002] A wireless projection teaching aid is a teaching tool that enables teachers to share information and teaching content with students by projecting the contents of their computer screen or mobile device onto a screen or projector via a wireless connection. Such teaching aids usually include a wireless transmitter that the teacher can connect to their device and one or more receivers that can be connected to the projector or display.

[0003] Due to teaching conditions, some schools cannot install projection equipment in every classroom, so teaching cannot be carried out with the help of projection equipment, and the teaching quality is difficult to improve. For this reason, a wireless projection teaching aid dedicated to teaching is now provided to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a wireless projection teaching aid for teaching, which can solve the problem that some classrooms with poor teaching conditions cannot enjoy wireless projection teaching.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wireless projection teaching aid for teaching, comprising a wireless projector body, a movable base, a screen assembly and a column, the number of movable bases is two groups and both are arranged below the wireless projector body, the wireless projector body and the screen assembly are respectively arranged on the upper part of the two groups of movable bases and are arranged opposite to each other, the column is fixedly connected to a group of movable bases located below the screen assembly and is vertically distributed with the group of movable bases, the screen assembly is rotatably connected to the top outer wall of the column; a limiting mechanism is arranged between the screen assembly and the column and can limit the position of the screen assembly.

[0006] Preferably, a guide rod is provided between the two groups of movable bases, movable sleeve holes are opened at the opposite side walls of the two groups of movable bases, the guide rod is movably sleeved in the movable sleeve holes on the two groups of movable bases, and the two groups of movable bases can move horizontally under the guidance of the guide rod.

[0007] Preferably, the screen assembly includes a screen tube, a screen and a servo motor. The top of the column is rotatably connected to the side wall of the wireless projector body, and a winding shaft is rotatably connected inside the screen tube. The screen is wound on the winding shaft inside the screen tube. An opening for the screen to pass through is provided on the outer wall of the screen tube. A servo motor is arranged at the end of the screen tube, and the output shaft of the servo motor is fixedly connected to the end of the winding shaft in the screen tube through a coupling.

[0008] Preferably, a group of movable bases below the wireless projector body are fixedly connected to a support vertically distributed therewith, a movable groove is provided at the top of the support, a pillar is movably sleeved in the movable groove at the top of the support, the top of the pillar is movably connected to the wireless projector body, a mounting groove connected to the movable groove on the support is provided at the side wall of the support, a damping telescopic rod is provided in the mounting groove on the side wall of the support, and the free end of the damping telescopic rod is fixedly connected to the bottom end of the pillar.

[0009] Preferably, the limiting mechanism includes side plates, bolts A and positioning holes, and a group of side plates are fixedly connected to the two groups of side walls of the column near the top thereof, and the side plates are threadedly connected with bolts A facing the curtain assembly, and two groups of positioning holes that can be respectively connected to the two groups of bolts A are opened on the outer wall of the curtain tube near the column.

[0010] Preferably, the limiting mechanism further comprises a bolt B, a threaded hole is provided on the outer wall of the middle section of the column, the threaded hole on the outer wall of the column is threadedly connected with the bolt B, and a group of positioning holes which can be connected with the bolt B are also provided on the outer wall of the curtain tube.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The wireless projection teaching aid for teaching, through the coordinated design of the wireless projector body, movable base, screen assembly, column and guide rod, makes the teaching aid flexibly movable and can be used in turn by various classrooms, which is conducive to reducing investment costs and improving teaching quality. It allows classrooms without projection teaching aids to use smart teaching aids, which is both practical and flexible.

[0013] (2) The wireless projection teaching aid for teaching, through the coordinated design of the wireless projector body, movable base, guide rod, support, support and damping telescopic rod, can adjust the distance between the wireless projector body and the screen assembly according to the use requirements to ensure the normal projection image. It has high flexibility, and the setting of the limit mechanism can be stored and folded to reduce space occupation and enhance the actual use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a diagram of the use state of the utility model;

[0015] Figure 2 This is a storage state diagram of the utility model;

[0016] Figure 3 It is an enlarged view of part A of the present utility model.

[0017] In the figure: 1. wireless projector body; 2. movable base; 3. screen assembly; 31. screen tube; 32. screen; 33. servo motor; 4. column; 5. guide rod; 6. support; 7. support; 8. damping telescopic rod; 9. limiting mechanism; 91. side panel; 92. bolt A; 93. positioning hole; 94. bolt B. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution: a wireless projection teaching aid for teaching, comprising a wireless projector body 1, a movable base 2, a screen assembly 3 and a column 4, the number of the movable base 2 is two groups and both are arranged below the wireless projector body 1, the wireless projector body 1 and the screen assembly 3 are respectively arranged on the upper part of the two groups of movable bases 2 and are arranged oppositely, the column 4 is fixedly connected to a group of movable bases 2 located below the screen assembly 3 and is vertically distributed with the group of movable bases 2, the screen assembly 3 is rotatably connected to the top outer wall of the column 4; a limiting mechanism 9, the limiting mechanism 9 is arranged between the screen assembly 3 and the column 4 and can limit the position of the screen assembly 3.

[0020] Furthermore, a guide rod 5 is provided between the two groups of movable bases 2, and movable sleeve holes are provided at the opposite side walls of the two groups of movable bases 2. The guide rod 5 is movably sleeved in the movable sleeve holes on the two groups of movable bases 2. The two groups of movable bases 2 can move horizontally under the guidance of the guide rod 5. The screen assembly 3 includes a screen tube 31, a screen 32 and a servo motor 33. The top of the column 4 is rotatably connected to the side wall of the wireless projector body 1, and a reel is rotatably connected in the screen tube 31. The reel is reeled in the screen tube 31 and connected to the reel. An opening for the screen 32 to pass through is provided on the outer wall of the screen tube 31. A servo motor 33 is provided at the end of the screen tube 31. The servo motor 33 is provided at the end of the screen tube 31. The output shaft of the motor 33 is fixedly connected to the end of the winding shaft in the screen tube 31 through a coupling, and a group of movable bases 2 below the wireless projector body 1 are fixedly connected to a support 6 distributed vertically therewith, and a movable groove is opened at the top of the support 6, and a pillar 7 is movably sleeved in the movable groove at the top of the support 6, and the top of the pillar 7 is movably connected to the wireless projector body 1, and a mounting groove connected to the movable groove on the support 6 is opened at the side wall of the support 6, and a damping telescopic rod 8 is arranged in the mounting groove at the side wall of the support 6, and the free end of the damping telescopic rod 8 is fixedly connected to the bottom end of the pillar 7, so that the teaching aids can be flexibly moved and can be used in each classroom in turn, which is conducive to reducing investment costs and improving teaching quality.

[0021] Secondly, the limiting mechanism 9 includes a side panel 91, a bolt A92 and a positioning hole 93. A group of side panels 91 are fixedly connected to the two groups of side walls near the top of the column 4. The side panels 91 are threadedly connected with bolts A92 facing the screen assembly 3. The outer wall of the screen tube 31 near the column 4 is provided with two groups of positioning holes 93 that can be connected with the two groups of bolts A92 respectively. The limiting mechanism 9 also includes a bolt B94. A through threaded hole is provided on the outer wall of the middle section of the column 4. The bolt B94 is threadedly connected in the threaded hole on the outer wall of the column 4. A group of positioning holes 93 that can be connected with the bolt B94 are also provided on the outer wall of the screen tube 31. The distance between the wireless projector body 1 and the screen assembly 3 can be adjusted according to the use requirements to ensure that the projection picture is normal and the flexibility is high. In addition, the setting of the limiting mechanism 9 can be stored and folded to reduce space occupancy.

[0022] Working principle: Move the teaching aid to the place of use, adjust the distance between the wireless projector body 1 and the screen assembly 3 through the guide rod 5, adjust the extension of the free end of the damping telescopic rod 8, and adjust the height of the wireless projector body 1 to ensure that the wireless projector body 1 projects the picture; when not in use, control the servo motor 33 to start, drive the screen 32 to be rolled up on the winding shaft in the screen tube 31, then tighten the bolt A92 to separate it from the positioning hole 93, rotate the screen tube 31 to a vertical state, and then connect the bolt B94 with the positioning hole 93 on the screen tube 31, and then bring the two sets of movable bases 2 together to the middle to complete the storage.

[0023] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A wireless projection teaching aid for teaching, characterized in that: include: A wireless projector body (1), a movable base (2), a screen assembly (3) and a column (4); the movable base (2) is in two groups and both are arranged below the wireless projector body (1); the wireless projector body (1) and the screen assembly (3) are respectively arranged on the upper part of the two groups of movable bases (2) and are arranged opposite to each other; the column (4) is fixedly connected to a group of movable bases (2) located below the screen assembly (3) and is vertically distributed with the group of movable bases (2); the screen assembly (3) is rotatably connected to the top outer wall of the column (4); and a limiting mechanism (9) is arranged between the screen assembly (3) and the column (4) and can limit the position of the screen assembly (3).

2. The wireless projection teaching aid for teaching according to claim 1, characterized in that: A guide rod (5) is arranged between the two groups of movable bases (2), and movable sleeve holes are opened at the opposite side walls of the two groups of movable bases (2). The guide rod (5) is movably sleeved in the movable sleeve holes on the two groups of movable bases (2), and the two groups of movable bases (2) can move horizontally under the guidance of the guide rod (5).

3. The wireless projection teaching aid for teaching according to claim 2, characterized in that: The screen assembly (3) comprises a screen tube (31), a screen (32) and a servo motor (33); the top of the column (4) is rotatably connected to the side wall of the wireless projector body (1); a reel is rotatably connected inside the screen tube (31); the screen (32) is reeled onto the reel in the screen tube (31); an opening is provided on the outer wall of the screen tube (31) for the screen (32) to pass through; a servo motor (33) is provided at the end of the screen tube (31); and the output shaft of the servo motor (33) is fixedly connected to the end of the reel in the screen tube (31) via a coupling.

4. The wireless projection teaching aid for teaching according to claim 3, characterized in that: A group of movable bases (2) below the wireless projector body (1) are fixedly connected to a support (6) distributed vertically therewith, a movable groove is provided at the top of the support (6), a support (7) is movably sleeved in the movable groove at the top of the support (6), the top of the support (7) is movably connected to the wireless projector body (1), a mounting groove connected to the movable groove on the support (6) is provided at the side wall of the support (6), a damping telescopic rod (8) is provided in the mounting groove on the side wall of the support (6), and the free end of the damping telescopic rod (8) is fixedly connected to the bottom end of the support (7).

5. The wireless projection teaching aid for teaching according to claim 4, characterized in that: The limiting mechanism (9) comprises a side plate (91), a bolt A (92) and a positioning hole (93); two sets of side walls of the column (4) close to the top thereof are fixedly connected with a set of side plates (91); the side plates (91) are threadedly connected with bolts A (92) facing the curtain assembly (3); and two sets of positioning holes (93) are respectively connected with the two sets of bolts A (92) on the outer wall of the curtain tube (31) close to the column (4).

6. The wireless projection teaching aid for teaching according to claim 5, characterized in that: The limiting mechanism (9) also includes a bolt B (94). A threaded hole is provided on the outer wall of the middle section of the column (4) to penetrate therethrough. The threaded hole on the outer wall of the column (4) is threadedly connected with the bolt B (94). The outer wall of the curtain tube (31) also includes a group of positioning holes (93) that can be connected to the bolt B (94).

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