Filter screen and projection lamp

Abstract

The filter screen comprises a shell and a filter screen assembly, a containing cavity and a first opening penetrating through the containing cavity are formed in the top of the shell, a second opening is formed in one side of the containing cavity, the filter screen assembly is arranged in the containing cavity, a positioning hole is formed in the filter screen assembly, and the containing cavity is in threaded connection with a first screw. The first screws can be inserted into the positioning holes. According to the filter screen and the projection lamp provided by the utility model, the filter screen assembly can be quickly assembled and disassembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a projection lamp technical field, especially in a filter screen and projection lamp. BACKGROUND

[0002] Projection lamp is a kind of equipment that can project pattern or video to curtain, and is widely used in family, office, school, banquet hall and entertainment place.At present, most projection lamps are fixedly installed on ceiling, and when maintenance is carried out, such as cleaning filter screen, person needs to climb to the position of projection lamp by ladder.

[0003] However, the existing filter screen is all fixed on the top of projection lamp by screw, when disassembling, the filter screen can be disassembled and cleaned only by taking down screw one by one by screwdriver and the like.This leads to that filter screen is troublesome to assemble and disassemble, time-consuming, and user needs to stand in high place for long time operation, and there is great safety hazard.

[0004] It can be seen that the prior art still needs to be improved and improved. UTILITY MODEL CONTENT

[0005] In view of the above shortcomings of prior art, the purpose of the utility model is to provide a filter screen and projection lamp, to solve the technical problems of the prior art that filter screen is troublesome to assemble and disassemble and time-consuming.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A filter screen, comprising a shell and a filter screen assembly, the top of the shell is provided with a containing cavity and a first opening penetrating the containing cavity, one side of the containing cavity is provided with a second opening, the filter screen assembly is arranged in the containing cavity, a positioning hole is formed on the filter screen assembly, the first screw is screwed with the containing cavity, and the first screw can be inserted into the positioning hole.

[0008] Further, the filter screen assembly comprises a first pad, a filter screen and a second pad arranged in sequence, the first pad is connected with the second pad by a plurality of second screws, and a plurality of through holes arranged in matrix are formed on the first pad and the second pad.

[0009] Further, the second pad is provided with a limiting block extending upward around, and a plurality of notches corresponding to the limiting blocks are formed on the first pad.

[0010] Further, the first screw is more than one, and the positioning hole is located on the first pad.

[0011] Further, the inner wall of the shell is provided with a plurality of grids arranged at equal intervals, and the plurality of grids are arranged obliquely.

[0012] Further, the top of the grid is located between the adjacent two rows of through holes.

[0013] Further, the shell is inclined to the inside at two corresponding sides.

[0014] A projection lamp comprises a shell, a projector, an air inlet fan, an air outlet fan and the filter screen, the projector is arranged in the shell, the shell is provided with an air inlet and an air outlet, the air inlet fan is arranged below the air inlet, the air outlet fan is arranged below the air outlet, and the filter screen is arranged on the air inlet and the air outlet.

[0015] Further, a controller is arranged in the shell, the controller is electrically connected with the projector, and a wireless module is electrically connected with the controller.

[0016] Beneficial effects:

[0017] The filter screen and the projection lamp are provided, the second opening is arranged on one side of the shell, the filter screen assembly can be pushed into the accommodating cavity or pulled out of the accommodating cavity, the filter screen assembly can be quickly assembled and disassembled, the operation is simple, and the time consumption is short, the first screw is screwed, the first screw is inserted into the positioning hole, the position of the filter screen assembly can be locked, and the stability of installation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure diagram of the filter screen is provided;

[0019] Figure 2 An explosion diagram of the filter screen is provided;

[0020] Figure 3 A zoomed-in view of A of the filter screen is provided; Figure 2 A zoomed-in view of A of the filter screen is provided;

[0021] Figure 4 A structure diagram of the projection lamp is provided;

[0022] Figure 5 An explosion diagram of the projection lamp is provided;

[0023] Figure 6 A bottom view of the projection lamp is provided;

[0024] Figure 7 A partial sectional view of the projection lamp is provided.

[0025] Filter screen 10: shell 1, accommodating cavity 11, support frame 111, first opening 12, second opening 13, grille 14, filter screen assembly 2, positioning hole 21, first pad 22, notch 221, filter screen 23, second pad 24, limiting block 241, second screw 25, through hole 26, rib 261, first screw 3;

[0026] Cabinet 4, air inlet 41, air outlet 42, projector 5, air inlet fan 6, air outlet fan 7, controller 8, wireless module 9. DETAILED DESCRIPTION

[0027] The utility model provides a filter screen and projection lamp, in order to make the utility model's purpose, technical scheme and effect more clear, explicit, the following with reference to the drawings and take example to this utility model further detailed explanation. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0028] In the description of the utility model, it needs to be understood that the terms "upper", "lower", "top", etc. Indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific orientation, and a specific orientation configuration and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more.

[0029] Please refer to Figures 1 to 3 The utility model provides a filter screen, filter screen 10 is installed on the air inlet 41 or air outlet 42 of projection lamp, filter screen 10 is used for filtering dust particles in air, after using for a period of time, then need to clean filter screen 10, to avoid filter screen 10 on the dust accumulation too thick and affect the heat dissipation of projection lamp, and then affect its work. The filter screen 10 includes the shell 1 and filter screen assembly 2, the shell 1 is used to install on the air inlet 41 or air outlet 42 of projection lamp, the top of shell 1 is equipped with containing cavity 11 and the first opening 12 of containing cavity 11, the side of containing cavity 11 is equipped with the second opening 13, filter screen assembly 2 is located in containing cavity 11, and the positioning hole 21 is formed in filter screen assembly 2, and the first screw 3 is screwed with containing cavity 11, and the first screw 3 can be inserted into the positioning hole 21.

[0030] When disassembling, the first screw 3 is screwed out a small distance, so that the first screw 3 exits the positioning hole 21, then the filter screen assembly 2 is pulled out along the direction of the second opening 13, that is, the disassembly of the filter screen assembly 2 is completed. After cleaning the filter screen assembly 2, the filter screen assembly 2 is directly inserted into the containing cavity 11 through the second opening 13, and finally the first screw 3 is screwed in, so that the first screw 3 is inserted into the positioning hole 21, that is, the installation of the filter screen assembly 2 is completed, which is simple in operation, time and labor saving.

[0031] It should be further noted that the first opening 12 is provided with two parallel support frames 111, and the two support frames 111 and the three sides of the top of the shell 1 form the accommodating cavity 11. The support frames 111 play a supporting and limiting role on the filter screen assembly 2, so that the filter screen assembly 2 can be stably installed in the accommodating cavity 11.

[0032] In a preferred embodiment, referring to Figure 2 , the filter screen assembly 2 comprises a first pad plate 22, a filter screen 23 and a second pad plate 24 arranged in sequence, the first pad plate 22 is connected with the second pad plate 24 by a plurality of second screws 25, and a plurality of through holes 26 arranged in a matrix are formed in the first pad plate 22 and the second pad plate 24. By arranging the first pad plate 22 and the second pad plate 24, the installation of the filter screen 23 is realized, and a plurality of through holes 26 are formed in the first pad plate 22 and the second pad plate 24, which play a role of air permeability, and the ribs 261 formed between adjacent two through holes 26 further stably support the filter screen 23 to ensure that the filter screen 23 remains flat. When cleaning the filter screen assembly 2, the plurality of second screws 25 are successively removed, so that the first pad plate 22 and the second pad plate 24 are separated, and then the filter screen 23 can be taken out for cleaning or replacement.

[0033] Further, referring to Figure 2 , the second pad plate 24 is provided with a plurality of limiting blocks 241 extending upward around the periphery, and a plurality of notches 221 corresponding to the limiting blocks 241 are formed in the first pad plate 22. The plurality of limiting blocks 241 cooperate to limit the installation position of the filter screen 23, so as to ensure that the filter screen 23 is stably installed and does not deviate in position. Similarly, the limiting blocks 241 cooperate with the notches 221 to limit the installation position of the first pad plate 22, thereby improving the assembly efficiency of the filter screen assembly 2.

[0034] In a preferred embodiment, the first screw 3 is more than one, and the positioning hole 21 is located on the first pad plate 22. Specifically, the first screw 3 is two, one of which is arranged near the second opening 13, and the other of which is located on the side of the accommodating cavity 11 away from the second opening 13. By arranging two first screws 3, the stability of the installation of the filter screen assembly 2 can be improved.

[0035] Preferably, the first screw 3 is a hand screw, such as a star-shaped hand screw, a butterfly-shaped hand screw, a flat head hand screw, etc., so that the user can not use any tool to screw in or out the first screw 3, further facilitating the assembly and disassembly of the filter screen 10.

[0036] In a preferred embodiment, the inner wall of the shell 1 is provided with a plurality of equidistantly arranged gratings 14, and the plurality of gratings 14 are arranged obliquely. For example Figure 7As shown, the plurality of grating 14 is arranged along the length direction of the shell 1, and the plurality of inclined grating 14 can play the role of guiding wind, avoiding the wind blowing, and further ensuring the heat dissipation efficiency of the projection lamp. In addition, the inclined grating 14 can also play the role of dust prevention. The tiny dust passing through the filter screen assembly 2 falls from top to bottom to the upper surface of the grating 14. The tiny dust is attached to the upper surface of the grating 14 under the blocking action of the grating 14, which can prevent the tiny dust from directly entering the inside of the projector 5.

[0037] Specifically, the top of the grating 14 is located between the adjacent two rows of through holes 26, that is, the top of the grating 14 is fixedly connected with the rib 261, so that the space between the adjacent two gratings 14 corresponds to the through hole 26 in the same row, so as to ensure the ventilation quantity of the filter screen assembly 2.

[0038] In a preferred embodiment, the shell 1 is inclined to the inside of the shell 1 on both sides. Figure 7 As shown, the shell 1 is isosceles trapezoidal structure, which plays the role of collecting wind. When the filter screen 10 is installed in the air inlet 41, the shell 1 is beneficial to the dispersion of the incoming cold wind to the inside of the projection lamp; when the filter screen 10 is installed in the air outlet 42, it is beneficial to guide the hot air in the projection lamp to flow to the environment through the first opening 12.

[0039] The utility model also provides a kind of projection lamp, refer to Figure 4 、 5 Including shell 4, projector 5, air inlet fan 6, air outlet fan 7 and filter screen 10, the projector 5 is located in shell 4, the air inlet 41 and air outlet 42 are opened on the shell 4, and the air inlet 41 and air outlet 42 are symmetrically arranged, the air inlet fan 6 is arranged below the air inlet 41, and the air outlet fan 7 is arranged below the air outlet 42.

[0040] When using, air inlet fan 6 and air outlet fan 7 are started, the cold wind in the environment flows to the shell 4 under the action of air inlet fan 6 through air inlet 41, and the cold wind dissipates the heat generated by projector 5, and forms hot air after heat exchange, and the hot air is discharged to the environment through air outlet 42 under the action of air outlet fan 7, which realizes the heat dissipation of projector 5 by using the circulation of wind.

[0041] The air inlet 41 and the air outlet 42 are provided with filter screen 10 to filter the dust particles in the air to prevent the dust particles from entering the shell 4 and affecting the work of the projector 5. After a period of use, the filter screen assembly 2 can be disassembled and cleaned to restore the ability of the filter screen assembly 2 to filter the dust particles.

[0042] Among the above, the air inlet fan 6 and the air outlet fan 7 are all three, three air inlet fans 6 extend along the length direction of the air inlet 41, three air outlet fans 7 extend along the length direction of the air outlet 42, and the length direction of the shell 1 is consistent with the length direction of the air inlet 41 and the air outlet 42.

[0043] In a preferred embodiment, referring to Figure 6 Further comprising a controller 8 arranged in the cabinet 4, the controller 8 is electrically connected with the projector 5, and the controller 8 is electrically connected with a wireless module 9. Specifically, the wireless module 9 can be a Bluetooth module or a wifi module, so that the user can control the projector 5 through the mobile phone, and improve the convenience of using the projector 5.

[0044] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the claims attached to the utility model.

Claims

1. A filter screen, characterized by The filter screen assembly comprises a first pad, a filter screen and a second pad which are stacked in sequence, the first pad is connected with the second pad by a plurality of second screws, and a plurality of through holes arranged in a matrix are formed on the first pad and the second pad.

2. The filter screen of claim 1, wherein, The second pad is provided with a limiting block extending upward around the periphery, and a plurality of notches corresponding to the limiting blocks are formed on the first pad.

3. The filter screen of claim 2, wherein, The first screw is more than one, and the positioning hole is located on the first pad.

4. The filter screen of claim 1, wherein, The inner wall of the shell is provided with a plurality of grids arranged at equal intervals, and the plurality of grids are inclined.

5. The filter screen of claim 2, wherein, The top of the grid is located between the adjacent two rows of through holes.

6. The filter screen of claim 5, wherein, The corresponding two sides of the shell are inclined to the inside.

7. The filter screen of claim 1, wherein, The projector is arranged in the shell, the shell is provided with an air inlet and an air outlet, the air inlet fan is arranged below the air inlet, the air outlet fan is arranged below the air outlet, and the filter screen is arranged on the air inlet and the air outlet.

8. A projection lamp characterized by The controller is electrically connected with the projector, and the wireless module is electrically connected with the controller.

9. The projection lamp of claim 8, wherein, ​

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