Video projection display equipment

Abstract

The utility model relates to the technical field of projection equipment, in particular to video projection display equipment which comprises a projection equipment body, ventilation openings are formed in the two sides of the projection equipment body, dustproof nets are fixedly arranged in the ventilation openings, fixing plates are fixedly arranged on the two sides of the upper end of the projection equipment body, and a motor is fixedly arranged in the middle of the upper end of the projection equipment body. A rotating disc is fixedly arranged at the output end of the motor, two sliding rods are symmetrically arranged at the position, located above the rotating disc, between the two fixing plates, two strip-shaped plates are arranged between the rod walls of the two sliding rods in a sliding mode, rotating shafts are fixedly arranged between the two ends of the two strip-shaped plates, and the shaft walls of the two rotating shafts are rotationally sleeved with rotating plates; the lower ends of the two rotating plates extend to the dustproof net, and brushes are fixedly arranged on the opposite sides of the two rotating plates. The dust on the dustproof net of the video projection display equipment can be cleaned repeatedly, the automation degree is high, the equipment maintenance efficiency is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a video projection display device. Background Art

[0002] Video projection display equipment refers to equipment used to project and display video images. Common projection display equipment includes laser projectors, which produce images by projecting red, green, and blue laser beams.

[0003] In actual use, projection display equipment is generally installed in high places such as ceilings to facilitate video projection. The shell of the projection display equipment is equipped with vents, on which a dust screen is fixed, and a cooling fan is installed inside. When the fan draws cold air from the outside into the interior, a large amount of dust is attached to the dust screen of the vent. Since the installation position of the projection display equipment is generally high, it is inconvenient for users to clean the dust on the dust screen, which affects the service life of the video projection display equipment. Therefore, we have launched a new type of video projection display equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a video projection display device to solve the problems raised in the above background technology.

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

[0006] A video projection display device comprises a projection device body, ventilation holes are provided on both sides of the projection device body, dustproof nets are fixedly provided in the ventilation holes, fixed plates are fixedly provided on both sides of the upper end of the projection device body, a motor is fixedly provided at the middle part of the upper end of the projection device body, a turntable is fixedly provided at the output end of the motor, two sliding rods are symmetrically provided between the two fixed plates and above the turntable, two strip plates are slidably provided between the rod walls of the two sliding rods, a rotating shaft is fixedly provided between the two ends of the two strip plates, rotating plates are rotatably sleeved on the shaft walls of the two rotating shafts, the lower ends of the two rotating plates extend to the dustproof net, brushes are fixedly provided on the opposite sides of the two rotating plates, a reciprocating mechanism is fixedly provided between the two strip plates and the turntable, and a tightening mechanism is fixedly provided on the upper ends of the opposite sides of the two rotating plates.

[0007] The reciprocating mechanism comprises an oval ring fixedly arranged at the lower ends of two strip plates, a circular block is slidably arranged inside the oval ring, and the lower end of the circular block is fixedly connected to the upper edge of the turntable.

[0008] The pressing mechanism comprises a spring, one end of which is fixedly connected to the upper end of the rotating plate on one side close to the rotating disk, and the other end of which is fixedly connected to the outer ring wall of the oval ring.

[0009] The spring is a tension spring.

[0010] The spring is always in a stretched state.

[0011] The brush is a glass fiber brush.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The video projection display device is provided with a strip plate, a fixed plate, a sliding rod, an oval circular ring, a rotating shaft, a rotating plate, a brush, a spring and a circular block. The motor is started, the motor drives the turntable to rotate, the turntable drives the circular block to rotate, the circular block drives the oval circular ring to move back and forth while rotating around the motor, the spring can pull the rotating plate and make the brush always press against the dustproof net, the oval circular ring drives the brushes on the two rotating plates through the two strip plates to repeatedly clean the dust on the dustproof net, the automation degree is high, the efficiency of equipment maintenance is improved, and the service life of the equipment is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a structural schematic diagram of a video projection display device.

[0015] Figure 2 The figure is a schematic diagram of a top view structure of a video projection display device.

[0016] Figure 3 A schematic side view of a video projection display device.

[0017] In the figure: 1. dust screen; 2. rotating plate; 3. brush; 4. projection device body; 5. rotating shaft; 6. strip plate; 7. sliding rod; 8. turntable; 9. fixed plate; 10. round block; 11. spring; 12. oval ring; 13. motor. 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 Figures 1 to 3 , the utility model provides a technical solution:

[0020] A video projection display device comprises a projection device body 4, both sides of which are provided with vents, a dustproof net 1 is fixedly provided in the vents, both sides of the upper end of the projection device body 4 are fixedly provided with fixed plates 9, a motor 13 is fixedly provided at the middle part of the upper end of the projection device body 4, a turntable 8 is fixedly provided at the output end of the motor 13, two slide bars 7 are symmetrically provided above the turntable 8 between the two fixed plates 9, two strip plates 6 are slidably provided between the rod walls of the two slide bars 7, a rotating shaft 5 is fixedly provided between the two ends of the two strip plates 6, the shaft walls of the two rotating shafts 5 are rotatably sleeved with rotating plates 2, the lower ends of the two rotating plates 2 are extended to the dustproof net 1, brushes 3 are fixedly provided on the opposite sides of the two rotating plates 2, a reciprocating mechanism is fixedly provided between the two strip plates 6 and the turntable 8, and a tightening mechanism is fixedly provided on the upper ends of the opposite sides of the two rotating plates 2.

[0021] The reciprocating mechanism includes an oval ring 12 , which is fixedly arranged at the lower ends of the two strip plates 6 , and a circular block 10 is slidably arranged inside the oval ring 12 , and the lower end of the circular block 10 is fixedly connected to the upper edge of the turntable 8 .

[0022] The pressing mechanism comprises a spring 11 , one end of which is fixedly connected to the upper end of the rotating plate 2 close to the rotating disk 8 , and the other end of the spring 11 is fixedly connected to the outer ring wall of the oval ring 12 .

[0023] The spring 11 is a tension spring, and the spring 11 is always in a stretched state. The spring 11 can pull the rotating plate 2 and make the brush 3 always press against the dustproof net 1.

[0024] The brush 3 is a glass fiber brush, which has a long service life and good wear resistance.

[0025] When in use, start the motor 13, the motor 13 drives the turntable 8 to rotate, the turntable 8 drives the circular block 10 to rotate, the circular block 10 drives the oval circular ring 12 to move back and forth while rotating around the motor 13, the spring 11 can pull the rotating plate 2 and make the brush 3 always against the dustproof net 1, the oval circular ring 12 drives the brushes 3 on the two rotating plates 2 through the two strip plates 6 to repeatedly clean the dust on the dustproof net 1, the high degree of automation improves the efficiency of equipment maintenance, and facilitates to extend the service life of the equipment.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A video projection display device, comprising a projection device body (4), wherein both sides of the projection device body (4) are provided with vents, and dustproof nets (1) are fixedly provided in the vents, characterized in that: A fixing plate (9) is fixedly provided on both sides of the upper end of the projection device body (4), a motor (13) is fixedly provided in the middle of the upper end of the projection device body (4), a turntable (8) is fixedly provided at the output end of the motor (13), two sliding rods (7) are symmetrically provided between the two fixing plates (9) and located above the turntable (8), two strip plates (6) are slidably provided between the rod walls of the two sliding rods (7), a rotating shaft (5) is fixedly provided between the two ends of the two strip plates (6), a rotating plate (2) is rotatably sleeved on the shaft walls of the two rotating shafts (5), the lower ends of the two rotating plates (2) extend to the dustproof net (1), a brush (3) is fixedly provided on the opposite side of the two rotating plates (2), a reciprocating mechanism is fixedly provided between the two strip plates (6) and the turntable (8), and a tightening mechanism is fixedly provided on the upper ends of the opposite side of the two rotating plates (2).

2. A video projection display device according to claim 1, characterized in that: The reciprocating mechanism comprises an oval-shaped ring (12), the oval-shaped ring (12) being fixedly arranged at the lower ends of the two strip plates (6), a circular block (10) being slidably arranged inside the oval-shaped ring (12), and the lower end of the circular block (10) being fixedly connected to the upper edge of the rotating disk (8).

3. A video projection display device according to claim 1 or 2, characterized in that: The tightening mechanism comprises a spring (11), one end of the spring (11) being fixedly connected to the upper end of a side of the rotating plate (2) close to the rotating disk (8), and the other end of the spring (11) being fixedly connected to the outer ring wall of the oval ring (12).

4. A video projection display device according to claim 3, characterized in that: The spring (11) is a tension spring.

5. A video projection display device according to claim 3, characterized in that: The spring (11) is always in a stretched state.

6. A video projection display device according to claim 1, characterized in that: The brush (3) is a glass fiber brush.

Images