Blackboard eye protection lamp with uniform illumination

Abstract

The utility model relates to the technical field of blackboard lamps, and discloses a blackboard eye protection lamp with uniform illumination, which comprises a blackboard lamp, the blackboard lamp is hinged with one end of a mounting frame, the other end of the mounting frame is fixedly connected with a wall body, a cross beam is fixedly mounted between the mounting frames, a rotating shaft is arranged on the cross beam, and the rotating shaft is connected with the blackboard lamp. A bevel gear II and a grooved wheel are fixedly installed at the two ends of the rotating shaft respectively, a bevel gear I is fixedly installed on a shell of the blackboard lamp, the bevel gear I and the bevel gear II are in meshing transmission, a fixed pulley is arranged on the inner wall of the bottom of the blackboard frame below the grooved wheel, and the outer side of the fixed pulley and the outer side of the grooved wheel are sleeved with a rope. Handles are fixedly mounted at the two ends of the rope, the rotating shaft is driven to rotate by pulling the rope up and down, then the illumination angle of the blackboard lamp is adjusted, and the illumination angle of the blackboard lamp is automatically adjusted along with movement of the blackboard by fixing the handles to the blackboard.

Description

Technical Field

[0001] The utility model relates to the technical field of blackboard lamps, in particular to a blackboard eye protection lamp with uniform illumination. Background Art

[0002] Blackboard eye protection lamp is a lamp specially used to illuminate the blackboard. It is designed to protect students' vision health. It uses soft light to reduce stimulation to the eyes and effectively relieve eye fatigue. It needs to have functions such as anti-glare, high brightness, and high uniformity of light projection.

[0003] Most of the existing blackboard lighting lamps are still hung in front of the podium. Although there is no obvious problem for students, it has a great impact on faculty and staff. When teachers teach students, the high-brightness blackboard lamps usually shine directly on the teacher's face, especially tall teachers. Moreover, most of the existing blackboard lamps are fixedly installed, and only a few have angle adjustment functions. The effect is acceptable when dealing with traditional whole blackboards, but it is more complicated to operate when facing movable blackboards such as push-pull type. As the blackboard moves, the blackboard lamp needs to be adjusted repeatedly by manual operation during use, which not only delays the teaching progress but also easily distracts students' attention. Therefore, it is very necessary to manufacture a blackboard lamp that can flexibly adjust the lighting angle and will not cause glare to teachers. Utility Model Content

[0004] In view of the shortcomings of the existing blackboard eye protection lamps mentioned in the background technology during use, the utility model provides a blackboard eye protection lamp with uniform illumination. The blackboard lamp is installed on the wall above the blackboard, and then ropes are installed on the blackboard lamp and the blackboard, so that the blackboard lamp can automatically adjust the lighting angle as the blackboard is pushed and pulled, solving the problem that traditional blackboard lamps cannot be flexibly adapted to movable blackboards.

[0005] The utility model provides the following technical solutions: a blackboard eye protection lamp with uniform illumination, comprising a blackboard lamp, wherein the blackboard lamp is hinged to one end of a mounting frame, the other end of the mounting frame is fixedly connected to a wall above a blackboard frame, a blackboard is movably installed in the blackboard frame, a crossbeam is fixedly installed between the mounting frames, a rotating shaft is provided on the crossbeam, the rotating shaft is rotatably connected to the crossbeam, a bevel gear II is fixedly installed at one end of the rotating shaft close to the blackboard lamp, a bevel gear I is fixedly installed on the outer shell of the blackboard lamp next to the bevel gear II, and the bevel gear I is meshed with the bevel gear II for transmission.

[0006] Preferably, a groove wheel is fixedly installed at one end of the rotating shaft close to the wall, a fixed pulley is provided on the bottom inner wall of the blackboard frame below the groove wheel, the fixed pulley is rotatably connected to the blackboard frame, a rope is sleeved on the outer side of the fixed pulley and the groove wheel, and a through hole is opened at the corresponding position of the top of the blackboard frame on the rope path.

[0007] Preferably, handles are fixedly mounted on both ends of the rope, and the two handles are fixedly connected by threads.

[0008] Preferably, a rotating cap is provided on the outer wall of the handle, the rotating cap is rotatably connected to the handle, a card block is fixedly mounted on the side wall of the rotating cap, and a card slot matching the shape of the card block is opened on the side wall of the blackboard next to the rope.

[0009] The utility model has the following beneficial effects:

[0010] 1. The utility model installs the blackboard eye protection lamp on the wall above the blackboard to prevent the light path from directly passing through the facial area of ​​the faculty and staff, and then hinges the blackboard lamp with the mounting frame. The lighting angle of the blackboard lamp is adjusted by pulling the rope. The structure is simple and reliable, and the operation is convenient.

[0011] 2. The utility model installs a handle on the control rope of the blackboard eye protection lamp and makes a groove on the side of the blackboard. After the lighting angle is adjusted, the handle is inserted into the groove, so that the lighting angle of the blackboard lamp can change with the movement of the blackboard, avoiding the problem that the existing adjustable blackboard lamp needs to be adjusted frequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle part;

[0014] Figure 3 For this utility model Figure 1 A partial enlarged view of point B in the middle;

[0015] Figure 4 For this utility model Figure 1 A partial enlarged view of point C in the middle;

[0016] Figure 5 This is the front view of the utility model;

[0017] Figure 6 For this utility model Figure 5 A partial enlargement of the middle handle.

[0018] In the figure: 1. wall; 2. blackboard frame; 21. blackboard; 22. slot; 3. blackboard lamp; 31. bevel gear I; 4. mounting frame; 5. crossbeam; 6. rotating shaft; 61. groove wheel; 62. bevel gear II; 7. rope; 8. fixed pulley; 9. handle; 91. rotating cap; 92. block. DETAILED DESCRIPTION

[0019] 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 of 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.

[0020] See also Figure 1 A blackboard eye protection lamp with uniform illumination includes a blackboard lamp 3, which is fixedly mounted on a wall 1 above a blackboard 21 to prevent the light of the blackboard lamp 3 from directly shining on the faces of faculty and staff and causing glare. The blackboard lamp 3 is hinged to one end of a mounting frame 4, and the other end of the mounting frame 4 is fixedly connected to the wall 1.

[0021] See also Figure 2 A crossbeam 5 is fixedly installed between the two mounting frames 4, and a rotating shaft 6 is provided in the middle of the crossbeam 5. The rotating shaft 6 is rotatably connected to the crossbeam 5. A groove wheel 61 is fixedly installed on the end of the rotating shaft 6 close to the wall 1, and a bevel gear II 62 is fixedly installed on the end of the rotating shaft 6 close to the blackboard lamp 3. A bevel gear I31 is fixedly installed on the outer shell of the blackboard lamp 3 next to the bevel gear II 62. The bevel gear II 62 is meshed with the bevel gear I31 for transmission. A rope 7 is sleeved on the outside of the groove wheel 61, and a through hole is opened at a position corresponding to the top of the blackboard frame 2 on the path of the rope 7. The rope 7 drives the rotating shaft 6 to rotate and then drives the blackboard lamp 3 to rotate back and forth to adjust the lighting angle.

[0022] See also Figure 4 A fixed pulley 8 is provided on the inner side of the bottom of the blackboard frame 2, the fixed pulley 8 is rotatably connected to the blackboard frame 2, and a rope 7 is sleeved on the outer side of the fixed pulley 8.

[0023] See also Figure 3 , Figure 5 and Figure 6 A handle 9 is fixedly installed at both ends of the rope 7. The two handles 9 are fixedly connected by threads to tighten the rope 7. A rotating cap 91 is provided on the outer wall of the handle 9. The rotating cap 91 is rotatably connected to the handle 9. A clamping block 92 is fixedly installed on the side wall of the rotating cap 91. A clamping groove 22 that matches the shape of the clamping block 92 is opened on the side of the blackboard 21 close to the rope 7. The clamping block 92 is inserted into the clamping groove 22 to make the light angle of the blackboard lamp 3 follow the movement of the blackboard frame 2.

[0024] The usage (working principle) of the utility model is as follows:

[0025] After the blackboard lamp 3 is installed, the handles 9 are twisted to tighten the rope 7, and the handles 9 are pulled up and down. The handles 9 drive the rope 7 to drive the fixed pulley 8 and the groove wheel 61 to rotate, and the groove wheel 61 drives the rotating shaft 6 and the bevel gear II 62 to rotate. The meshing transmission of the bevel gear II 62 and the bevel gear I 31 drives the blackboard lamp 3 to rotate back and forth to adjust the illumination angle of the blackboard lamp 3.

[0026] By turning the rotating cap 91 so that the card block 92 faces the blackboard 21 and inserting the card block 92 into the card slot 22, the blackboard lamp 3 can automatically adjust the illumination angle following the up and down movement of the blackboard 21, thereby solving the problem that traditional blackboard lamps have poor lighting effects on movable blackboards such as push-pull blackboards, as well as the glare problem caused by direct light on the faces of faculty and staff.

Claims

1. A blackboard eye protection lamp with uniform illumination, comprising a blackboard lamp (3), wherein the blackboard lamp (3) is hinged to one end of a mounting frame (4), the other end of the mounting frame (4) is fixedly connected to a wall (1) above a blackboard frame (2), and a blackboard (21) is movably installed in the blackboard frame (2), characterized in that: A crossbeam (5) is fixedly installed between the mounting frames (4), a rotating shaft (6) is provided on the crossbeam (5), the rotating shaft (6) is rotatably connected to the crossbeam (5), a bevel gear II (62) is fixedly installed on one end of the rotating shaft (6) close to the blackboard lamp (3), a bevel gear I (31) is fixedly installed on the outer shell of the blackboard lamp (3) next to the bevel gear II (62), and the bevel gear I (31) is meshed with the bevel gear II (62) for transmission.

2. A blackboard eye protection lamp with uniform illumination according to claim 1, characterized in that: A groove wheel (61) is fixedly mounted on one end of the rotating shaft (6) close to the wall (1); a fixed pulley (8) is provided on the bottom inner wall of the blackboard frame (2) below the groove wheel (61); the fixed pulley (8) is rotatably connected to the blackboard frame (2); a rope (7) is sleeved on the outer side of the fixed pulley (8) and the groove wheel (61); and a through hole is provided at a corresponding position on the top of the blackboard frame (2) on the path of the rope (7).

3. A blackboard eye protection lamp with uniform illumination according to claim 2, characterized in that: Handles (9) are fixedly mounted on both ends of the rope (7), and the two handles (9) are fixedly connected via threads.

4. The blackboard eye protection lamp with uniform illumination according to claim 3, characterized in that: The outer wall of the handle (9) is provided with a rotating cap (91), the rotating cap (91) is rotatably connected to the handle (9), a clamping block (92) is fixedly mounted on the side wall of the rotating cap (91), and a clamping groove (22) matching the shape of the clamping block (92) is opened on the side wall of the blackboard (21) next to the rope (7).

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