Projector for teaching

Abstract

The utility model discloses a projector for teaching, which comprises a mounting seat fixed on a wall, a square column fixedly connected to the bottom of the mounting seat, a square tube slidably connected to the outer side of the square column, a fixing assembly arranged on one side of the square column and used for fixing the square tube, and a fixing plate fixedly connected to the bottom end of the square tube. Two sides of the fixed plate are fixedly connected with second connecting rods, a movable plate is rotatably connected between the two second connecting rods, a projector body is placed on the upper surface of the movable plate, a sliding groove is formed in the bottom of the fixed plate, a sliding block is slidably connected in the sliding groove, two sides of the sliding block are rotatably connected with first connecting rods, and the first connecting rods and the movable plate rotate. According to the utility model, the angle of the projector can be conveniently adjusted, the expected projection effect is achieved, the time is saved, the efficiency is improved, the projector can be prevented from sliding off from the movable plate, and the use safety of the projector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projector brackets, in particular to a projector for teaching. Background Art

[0002] With the rapid development of life, teaching methods are also improving at any time. Installing a projector in the classroom can increase the teaching effect and make students' learning impression more profound.

[0003] After searching, the announcement number CN212749512U discloses a teaching projection device, including a projector and a mounting frame. It has the advantages of easy dust cleaning, etc., which solves the problem of inconvenience in cleaning the camera area of ​​the projection device. However, the device has a defect. When installing the projector, in order to ensure that the projected image does not tilt, the angle of the projector needs to be adjusted to achieve the expected projection effect, and the device is more troublesome to adjust. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a teaching projector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A teaching projector comprises a mounting base fixed on a wall, wherein a square column is fixedly connected to the bottom of the mounting base, a square tube is slidably connected to the outside of the square column, a fixing assembly for fixing the square tube is provided on one side of the square column, a fixing plate is fixedly connected to the bottom end of the square tube, two connecting rods are fixedly connected to both sides of the fixing plate, a movable plate is rotatably connected between the two connecting rods, a projector body is placed on the upper surface of the movable plate, a sliding groove is provided at the bottom of the fixing plate, a sliding block is slidably connected in the sliding groove, a connecting rod 1 is rotatably connected to both sides of the sliding block, and the connecting rod 1 rotates with the movable plate, a threaded rod is rotatably connected in the sliding groove, and the threaded rod passes through the sliding block and is threadably connected to the sliding block, and a resisting component for limiting the projector body is provided on the upper surface of the movable plate.

[0007] As a further solution of the utility model, the fixing assembly includes a plurality of sockets, and the plurality of sockets are all opened on one side of the square column. A latch is provided on one side of the square tube, and the latch passes through the square tube and is plugged into one of the sockets.

[0008] As a further solution of the utility model, the blocking component is two baffles, the two baffles are fixedly connected to the upper surface of the movable plate, and the two baffles are respectively located on both sides of the projector body.

[0009] As a further solution of the utility model, the top of the mounting seat is rotatably connected to two first rotating frames, one side of the two first rotating frames is rotatably connected to a second rotating frame, and the second rotating frame is rotatably connected to the fixed plate.

[0010] As a further solution of the utility model, one end of the threaded rod passes through the fixing plate and is fixedly connected with a knob for rotating the threaded rod.

[0011] As a further solution of the utility model, two sliding rods are fixedly connected in the sliding groove, and the sliding rods pass through the sliding block.

[0012] As a further solution of the utility model, a plurality of fixing holes are opened on the top of the mounting seat, and the fixing holes are evenly distributed.

[0013] As a further solution of the utility model, a rubber pad is fixedly connected to the upper surface of the movable plate, and the rubber pad is the same length as the movable plate.

[0014] The beneficial effects of the utility model are:

[0015] 1. Through the coordinated use of the slider and the movable plate, the threaded rod is rotated, and the threaded rod will drive the slider to move in the slide groove. The slider will rotate by pulling the movable plate through the connecting rod, thereby facilitating the adjustment of the angle of the projector to achieve the desired projection effect, saving time and improving efficiency.

[0016] 2. By setting the resisting component, when adjusting the angle of the projector, the resisting component will limit the position of the projector, thereby preventing the projector from sliding off the movable plate, thereby improving the safety of the projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a teaching projector proposed by the utility model;

[0018] Figure 2 This is a partial cross-sectional structural schematic diagram of a teaching projector proposed by the utility model;

[0019] Figure 3 The utility model is a schematic diagram of a partially enlarged structure of a teaching projector.

[0020] In the figure: 1, mounting base; 2, fixing hole; 3, first rotating frame; 4, second rotating frame; 5, fixing plate; 6, movable plate; 7, projector body; 8, connecting rod 1; 9, connecting rod 2; 10, slide groove; 11, slider; 12, threaded rod; 13, knob; 14, slide rod; 15, square tube; 16, square column; 17, socket; 18, latch; 19, baffle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, other embodiments obtained by ordinary technicians in this field without making creative work are all within the scope of protection of the utility model.

[0022] Reference Figure 1-Figure 3 A teaching projector comprises a mounting base 1 fixed on a wall, a square column 16 is welded at the bottom of the mounting base 1, a square tube 15 is slidably connected to the outer side of the square column 16, a fixing assembly for fixing the square tube 15 is provided on one side of the square column 16, a fixing plate 5 is welded at the bottom end of the square tube 15, connecting rods 2 9 are fixed to both sides of the fixing plate 5 by bolts, a movable plate 6 is rotatably connected between the two connecting rods 2 9, a projector body 7 is placed on the upper surface of the movable plate 6, a slide groove 10 is provided at the bottom of the fixing plate 5, a slider 11 is slidably connected in the slide groove 10, connecting rods 1 8 are rotatably connected to both sides of the slider 11, and the connecting rods 1 8 rotate with the movable plate 6, a threaded rod 12 is rotatably connected in the slide groove 10, and the threaded rod 12 passes through the slider 11 and is threadedly connected to the slider 11, a resisting component for limiting the projector body 7 is provided on the upper surface of the movable plate 6, so that the fixing assembly no longer fixes the square tube 15, at this time, the square tube 15 can be moved along the square column 16, and the square tube 15 will drive the fixed The fixed plate 5 moves to adjust the height of the projector body 7. When the projector body 7 is adjusted to a suitable height, the square tube 15 is fixed by the fixing assembly to fix the height of the projector body 7, and then the threaded rod 12 is rotated. The threaded rod 12 will drive the slider 11 to move along the groove direction of the slide groove 10. At the same time, the slider 11 will pull the movable plate 6 to rotate through the connecting rod 18, and the connecting rod 18 will rotate between the slider 11 and the movable plate 6. During the rotation of the movable plate 6, the connecting rod 29 will rotate between the movable plate 6, thereby adjusting the angle of the projector body 7. When the projector body 7 is adjusted to a suitable angle, stop rotating the threaded rod 12. At this time, the threaded rod 12 will fix the angle of the projector body 7 through the threaded engagement between the slider 11, thereby facilitating the adjustment of the angle of the projector and achieving the expected projection effect, saving time and improving efficiency. At the same time, the resisting component will resist and limit the projector body 7.

[0023] In the utility model, the fixing assembly includes a plurality of sockets 17, and the plurality of sockets 17 are all opened on one side of the square column 16. A latch 18 is provided on one side of the square tube 15, and the latch 18 passes through the square tube 15 and is plugged into one of the sockets 17. The latch 18 is pulled out to disengage the latch 18 from the socket 17, and the square tube 15 can be moved along the square column 16. When the projector body 7 is adjusted to a suitable height, the latch 18 is inserted into the corresponding socket 17 to fix the height of the projector body 7. The blocking component is two baffles 19, and the two baffles 19 are welded to the upper surface of the movable plate 6. The two baffles 19 are respectively located on both sides of the projector body 7. The baffles 19 will block the projector body 7, thereby preventing the projector body 7 from sliding off the movable plate 6. The top of the mounting seat 1 is rotatably connected to two first rotating frames 3, and the two first rotating frames 3 are connected to the top of the mounting seat 1. One side of the rotating frame 3 is rotatably connected with the second rotating frame 4, and the second rotating frame 4 is rotatably connected with the fixed plate 5. When the fixed plate 5 moves, the first rotating frame 3 will rotate with the mounting seat 1, the second rotating frame 4 will rotate with the fixed plate 5, and the first rotating frame 3 and the second rotating frame 4 will rotate. One end of the threaded rod 12 passes through the fixed plate 5 and is welded with a knob 13 for rotating the threaded rod 12. The threaded rod 12 can be rotated by the knob 13. Two sliding rods 14 are fixed in the slide groove 10 by bolts, and the sliding rod 14 passes through the slider 11. The sliding rod 14 guides the movement of the slider 11. A plurality of fixing holes 2 are opened on the top of the mounting seat 1, and the fixing holes 2 are evenly distributed. The mounting seat 1 can be installed through the fixing holes 2. A rubber pad is bonded to the upper surface of the movable plate 6, and the rubber pad is of the same length as the movable plate 6.

[0024] Working principle: When in use, the mounting base 1 is installed on the top wall, and then the pin 18 is pulled out to disengage the pin 18 from the socket 17. At this time, the square tube 15 can be moved along the square column 16, and the square tube 15 will drive the fixing plate 5 to move. At this time, the first rotating frame 3 will rotate with the mounting base 1, the second rotating frame 4 will rotate with the fixing plate 5, and the first rotating frame 3 and the second rotating frame 4 will rotate, so as to adjust the height of the projector body 7. When the projector body 7 is adjusted to a suitable height, the pin 18 is inserted into the corresponding socket 17 to fix the height of the projector body 7, and then the threaded rod 12 is rotated, and the threaded rod 12 will drive the slider 11 to move along the groove direction of the slide groove 10, and at the same time, the slider 11 is moved. The block 11 will pull the movable plate 6 to rotate through the connecting rod 18, and the connecting rod 18 will rotate between the slider 11 and the movable plate 6. During the rotation of the movable plate 6, the connecting rod 29 will rotate between the movable plate 6, thereby adjusting the angle of the projector body 7. When the projector body 7 is adjusted to a suitable angle, the threaded rod 12 is stopped. At this time, the threaded rod 12 will fix the angle of the projector body 7 through the threaded engagement with the slider 11, thereby facilitating the adjustment of the angle of the projector to achieve the desired projection effect, saving time and improving efficiency. During the rotation of the movable plate 6, the baffle 19 will resist the projector body 7, thereby preventing the projector body 7 from sliding off the movable plate 6.

[0025] In addition, the terms "installation", "setting", "connection" and "socketing" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

Claims

1. A projector for teaching, comprising a mounting base (1) fixed on a wall, characterized in that: The bottom of the mounting seat (1) is fixedly connected to a square column (16), the outer side of the square column (16) is slidably connected to a square tube (15), one side of the square column (16) is provided with a fixing assembly for fixing the square tube (15), the bottom end of the square tube (15) is fixedly connected to a fixing plate (5), both sides of the fixing plate (5) are fixedly connected to connecting rods (9), a movable plate (6) is rotatably connected between the two connecting rods (9), and a projector body (7) is placed on the upper surface of the movable plate (6) A slide groove (10) is provided at the bottom of the fixed plate (5), a slider (11) is slidably connected in the slide groove (10), connecting rods (8) are rotatably connected on both sides of the slider (11), and the connecting rod (8) rotates with the movable plate (6), a threaded rod (12) is rotatably connected in the slide groove (10), and the threaded rod (12) passes through the slider (11) and is threadedly connected to the slider (11), and a resisting component for limiting the projector body (7) is provided on the upper surface of the movable plate (6).

2. A teaching projector according to claim 1, characterized in that: The fixing assembly comprises a plurality of insertion holes (17), each of which is disposed on one side of the square column (16); a latch (18) is disposed on one side of the square tube (15), and the latch (18) passes through the square tube (15) and is plugged into one of the insertion holes (17).

3. A teaching projector according to claim 1, characterized in that: The blocking components are two baffles (19), the two baffles (19) are fixedly connected to the upper surface of the movable plate (6), and the two baffles (19) are respectively located on both sides of the projector body (7).

4. A teaching projector according to claim 1, characterized in that: The top of the mounting seat (1) is rotatably connected to two first rotating frames (3), one side of each of the two first rotating frames (3) is rotatably connected to a second rotating frame (4), and the second rotating frame (4) is rotatably connected to a fixed plate (5).

5. The teaching projector according to claim 1, characterized in that: One end of the threaded rod (12) passes through the fixing plate (5) and is fixedly connected to a knob (13) for rotating the threaded rod (12).

6. The teaching projector according to claim 1, characterized in that: Two sliding rods (14) are fixedly connected in the sliding groove (10), and the sliding rods (14) pass through the sliding block (11).

7. The teaching projector according to claim 4, characterized in that: The top of the mounting seat (1) is provided with a plurality of fixing holes (2), and the fixing holes (2) are evenly distributed.

8. The teaching projector according to claim 3, characterized in that: A rubber pad is fixedly connected to the upper surface of the movable plate (6), and the rubber pad is of the same length as the movable plate (6).

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