CN216561374U - Laser automatic focusing household projector - Google Patents

Abstract

The utility model relates to the technical field of household projectors, and discloses a household projector with automatic laser focusing function. This laser auto focus's domestic projecting apparatus, through the host computer, the side opening, the bottom hole, the sill bar, fixed pipe, the pull rod, the holding ring, interior nut, first spring, the curb plate, the side lever, the bottom plate, the through-hole, the ejector pin, adjusting nut, the second spring, the support, first dirt board of straining, radiator fan, mutually support between dirt board and the top cap are strained to the second, reached and improved the radiating mode to the projecting apparatus, avoid the dust to pass through the inside effect of louvre entering projecting apparatus, it is inside easy to get into the projecting apparatus through the louvre to have solved external dust oil smoke, cause the light path pollution, thereby influence the problem of projection picture quality.

Description

Laser automatic focusing household projector

Technical Field

The utility model relates to the technical field of household projectors, in particular to a household projector with automatic laser focusing function.

Background

The household projector is mainly used for family movies, offices, entertainment and the like, the display principle of the household projector is diffuse reflection, and compared with direct projection imaging of a conventional liquid crystal television, the household projector is healthier and can effectively prevent human eyes from being stimulated by direct light.

The projecting apparatus is in the use, its inside bulb can emit a large amount of heats, so the projecting apparatus need dispel the heat when using, and the built-in fan heat dissipation of current projecting apparatus adoption mostly can set up the louvre on the projecting apparatus shell, so that aeration cooling, but if the louvre has been seted up to the projecting apparatus, dust in the air is very easily got into inside the projecting apparatus, this is in the past in the long term, can accumulate a large amount of dusts in the projecting apparatus, its inside light path is very likely to be polluted by dust oil stain, thereby lead to the projecting apparatus picture to darken, influence user's use and experience.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a household projector with automatic laser focusing, which has the advantages of improving the heat dissipation mode of the projector, avoiding dust from entering the interior of the projector through heat dissipation holes, and solving the problem that the external dust and oil smoke easily enter the interior of the projector through the heat dissipation holes to cause light path pollution and further influence the quality of a projection picture.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a household projector with automatic laser focusing function comprises a main machine and a bottom rod, wherein the bottom of the main machine is fixedly connected with the top end of the bottom rod, side holes are formed in the side surface of the main machine, bottom holes are formed in the bottom of the main machine, fixing pipes are arranged on the front side and the rear side of the main machine, a pull rod is movably connected with the inside of each fixing pipe, a side plate is fixedly connected with one end of each pull rod away from the corresponding fixing pipe, a positioning ring is arranged inside each fixing pipe and movably connected with the inside of the corresponding positioning ring, the fixing pipes are connected with inner hexagonal pipes through clamping rings, inner nuts are arranged inside the inner hexagonal pipes, the side surfaces of the pull rods are connected with the inner threads of the inner nuts through first springs, side rods are arranged on the inner walls of the side plates and are connected with the inner nuts through side rods, the side rods are inserted into the inner parts of the side holes, a bottom plate is movably connected with the side surfaces of the bottom rod, the utility model discloses a dust filter, including bottom rod, adjusting nut, second spring, ejector pin, main frame, intercommunication groove, support, dust filtering plate, radiator fan and second, the side surface threaded connection of bottom rod has adjusting nut, adjusting nut passes through the second spring and is connected with the bottom plate, the top of bottom plate is provided with the ejector pin, the ejector pin is pegged graft with the inside of bottom outlet, the top of host computer is provided with the support, the intercommunication groove has been seted up at the top of host computer, the support is located the intercommunication groove directly over, the inside of support is provided with first dust filtering plate, radiator fan and second dust filtering plate, the top of support is provided with the top cap.

Preferably, the side of the host computer is an arc-shaped surface, the side plate is an arc-shaped plate, the radius corresponding to the arc-shaped plate is the same as the radius corresponding to the arc-shaped surface, and after the side plate is abutted against the host computer, the corresponding radius of the arc-shaped plate is the same as the corresponding radius of the arc-shaped surface, so that the inner wall of the side plate can be tightly attached to the side of the host computer, and the side of the host computer is protected.

Preferably, fixed pipe keeps away from the one end of host computer and has seted up ring groove, the snap ring is located ring groove's inside, the side surface of interior hexagonal pipe and the inside fixed connection of snap ring, at this moment, interior hexagonal pipe can only take place relative rotation with fixed pipe under the effect of snap ring, and after interior hexagonal pipe rotated, the snap ring can be at the ring groove internal rotation, and adjust interior nut then can be followed pull rod axial displacement including the effect of hexagonal pipe is followed in the rotation.

Preferably, the one end that interior nut was kept away from to first spring supports with the one end that the curb plate was kept away from to the holding ring, the one end that the curb plate was kept away from to first spring supports with one side that interior nut is close to the curb plate, and first spring has provided the pulling force for the curb plate resets, and after radiator fan stall, the curb plate can move back under the effect of first spring, and until curb plate inner wall and main part side laminating, and inside the side lever will insert the side opening completely to accomplish the shutoff to the side opening.

Preferably, the bottom end of the second spring abuts against the top of the adjusting nut, the top end of the second spring abuts against the bottom of the bottom plate, the second spring provides upward supporting force for the abutting plate, after the cooling fan stops rotating, the bottom plate moves upwards under the action of the second spring until the top of the bottom plate abuts against the bottom of the host, and the ejector rod is completely inserted into the bottom hole to complete the plugging of the bottom hole.

Preferably, first slot and second slot have been seted up to the inside of support, first dust filter plate is located the inside of first slot, the second dust filter plate is located inside the second slot, the inner wall of support is provided with the flange, radiator fan's bottom is connected with the top of flange, and after radiator fan operation, the air can be inhaled in the support, and the air current then can be through the filtration of first dust filter plate and second dust filter plate and sent into inside the host computer to cool down dispels the heat to the host computer.

Compared with the prior art, the utility model provides a household projector with automatic laser focusing, which has the following beneficial effects:

1. this domestic projecting apparatus of laser auto-focus, through the host computer, the side opening, the bottom outlet, the bottom bar, fixed pipe, the pull rod, the holding ring, interior nut, first spring, the curb plate, the side lever, the bottom plate, the through-hole, the ejector pin, adjusting nut, the second spring, the support, first dirt board, radiator fan, mutually support between dirt board and the top cap are strained to the second, reached and improved the radiating mode of projecting apparatus, avoid the dust to pass through the louvre and get into the inside effect of projecting apparatus, it is inside easy to get into the projecting apparatus through the louvre to have solved external dust oil smoke, cause the light path pollution, thereby influence the problem of projection picture quality.

2. This domestic projecting apparatus of laser auto-focus through the mutual cooperation between dead lever, pull rod, holding ring, snap ring, interior hexagonal pipe, interior nut and the first spring, the relative position of interior nut and pull rod is adjusted to the accessible is twisted to interior hexagonal pipe to change first spring elasticity, reached the effect of being convenient for adjust first spring elasticity, solve the loose problem of elasticity after first spring uses for a long time.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a front view of the host of the present invention;

FIG. 4 is a schematic view of the structure of the side plate of the present invention;

FIG. 5 is an enlarged view of the utility model at B of FIG. 4;

FIG. 6 is a schematic view of the bottom plate structure of the present invention;

FIG. 7 is a top view of the present invention.

Wherein: 1. a host; 2. a side hole; 3. a bottom hole; 4. a bottom bar; 5. a fixed tube; 6. a pull rod; 7. a positioning ring; 8. a snap ring; 9. an inner hexagonal tube; 10. an inner nut; 11. a first spring; 12. a side plate; 13. a side lever; 14. a base plate; 15. a through hole; 16. a top rod; 17. adjusting the nut; 18. a second spring; 19. a support; 20. a first dust filter plate; 21. a heat radiation fan; 22. a second dust filter plate; 23. and a top cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a household projector with laser auto-focusing function comprises a main unit 1 and a bottom rod 4, wherein the main unit 1 is an automatic focusing household projector, the projector is the prior art, the bottom of the main unit 1 is fixedly connected with the top end of the bottom rod 4, the number of the bottom rods 4 is three, the three abutting rods are connected to form an equilateral triangle, the side surface of the main unit 1 is provided with a side hole 2, the bottom of the main unit 1 is provided with a bottom hole 3, the side hole 2 and the bottom hole 3 are heat dissipation holes, the front side and the rear side of the main unit 1 are respectively provided with a fixed tube 5, the number of the fixed tubes 5 is eight, each four fixed tubes are in one group, each group is symmetrically distributed by taking the transverse central line of the main unit as a symmetric axis, the inner part of each fixed tube 5 is movably connected with a pull rod 6, one end of the pull rod 6 far away from the fixed tube 5 is fixedly connected with a side plate 12, the side surface of the main unit 1 is an arc-shaped surface, the side plate 12 is an arc-shaped plate, the radius that the arc corresponds is the same with the radius that the arcwall face corresponds, the inside of fixed pipe 5 is provided with holding ring 7, pull rod 6 and the inside swing joint of holding ring 7, the axial centerline of pull rod 6 and the axial centerline collineation of holding ring 7, fixed pipe 5 is connected with interior hexagonal pipe 9 through snap ring 8, the one end that fixed pipe 5 kept away from host computer 1 has seted up ring groove, snap ring 8 is located ring groove's inside, the inside fixed connection of the side surface of interior hexagonal pipe 9 and snap ring 8, the axial centerline of interior hexagonal pipe 9 and the axial centerline collineation of snap ring 8, pull rod 6 is located the inside of interior hexagonal pipe 9, the inside of interior hexagonal pipe 9 is provided with interior nut 10, six faces have been seted up to the side surface of interior nut 10, its shape and size and interior hexagonal pipe 9 phase-match, the inside threaded connection of pull rod 6 and interior nut 10.

The positioning ring 7 is connected with the inner nut 10 through a first spring 11, at the moment, the first spring 11 is in a stretching state, the pull rod 6 is positioned inside the first spring 11, one end of the first spring 11, which is far away from the inner nut 10, is abutted against one end of the positioning ring 7, which is far away from the side plate 12, one end of the first spring 11, which is far away from the side plate 12, is abutted against one side of the inner nut 10, which is close to the side plate, the inner wall of the side plate 12 is provided with a side rod 13, the side rods 13 are inserted into the side holes 2, each side hole 2 is provided with a side rod 13, the diameter of each side rod 13 is smaller than the inner diameter of the side hole 2, the side surface of the bottom rod 4 is movably connected with a bottom plate 14, the inner part of the bottom plate 14 is provided with a through hole 15, the bottom rod 4 is positioned inside the through hole 15, the side surface of the bottom rod 4 is in threaded connection with an adjusting nut 17, the adjusting nut 17 is connected with the bottom plate 14 through a second spring 18, the bottom rod 4 is movably connected with the inner part of the second spring 18, the bottom end of the second spring 18 is abutted against the top of the adjusting nut 17, the top end of the second spring 18 is abutted against the bottom of the bottom plate 14, the top of the bottom plate 14 is provided with an ejector rod 16, the ejector rod 16 is inserted into the bottom holes 3, each bottom hole 3 is provided with an ejector rod 16, the diameter of each ejector rod 16 is smaller than the inner diameter of the bottom hole 3, the top of the host 1 is provided with a support 19, the top of the host 1 is provided with a communicating groove which can communicate the inside of the host 1 with the outside, the support 19 is positioned right above the communicating groove, the support 19 is internally provided with a first dust filter plate 20, a radiator fan 21 and a second dust filter plate 22, the first dust filter plate 20 is positioned at the lower side of the radiator fan 21, the second dust filter plate 22 is positioned at the upper side of the radiator fan 21, the support 19 is internally provided with a first slot and a second slot, the first dust filter plate 20 is positioned inside the first slot, the first dust filter plate 20 is movably connected with the first slot, the second dust filtering plate 22 is located inside the second slot, the second dust filtering plate 22 is movably connected with the inside of the second slot, a flange is arranged on the inner wall of the support 19, the bottom of the cooling fan 21 is connected with the top of the flange, a top cover 23 is arranged at the top of the support 19, the top cover 23 is located on the upper side of the second dust filtering plate 22, and a vent hole is formed in the top of the top cover 23.

When the projector is started, the heat dissipation fan 21 is started simultaneously, then the outside air is sent into the main machine 1 after being filtered by the first dust filter 20 and the second dust filter 22, at this time, the air pressure in the main machine 1 is increased, the side plate 12 and the bottom plate 14 are both jacked up by the air flow, the side rod 13 and the top rod 16 respectively move relative to the side hole 2 and the bottom hole 3, and the air flow flows out from the gap between the side hole 2 and the side rod 13 and the gap between the bottom hole 3 and the top rod 16, thereby achieving the heat dissipation effect, and because the inside of the main machine 1 is always kept in a positive pressure state, therefore, external dust is difficult to enter the inside of the host 1, when the host 1 is shut down, the heat dissipation fan 21 is closed together, the side plate 12 and the bottom plate 14 move back under the action of the first spring 11 and the second spring 18 respectively to seal the side hole 2 and the bottom hole 3, and accordingly, the function of preventing external dust from entering the inside of the host 1 is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a domestic projecting apparatus of laser auto focus, includes host computer (1) and sill bar (4), the top fixed connection of the bottom of host computer (1) and sill bar (4), its characterized in that: side opening (2) have been seted up to the side of host computer (1), bottom hole (3) have been seted up to the bottom of host computer (1), both sides all are provided with fixed pipe (5) around host computer (1), the inside swing joint of fixed pipe (5) has pull rod (6), the one end fixedly connected with curb plate (12) of fixed pipe (5) are kept away from to pull rod (6), the inside of fixed pipe (5) is provided with holding ring (7), the inside swing joint of pull rod (6) and holding ring (7), the inside of fixed pipe (5) is connected with interior hexagonal pipe (9) through snap ring (8), the inside of interior hexagonal pipe (9) is provided with interior nut (10), the side surface of pull rod (6) and the interior threaded connection of interior nut (10), holding ring (7) are connected with interior nut (10) through first spring (11), a side rod (13) is arranged on the inner wall of the side plate (12), the side rod (13) is inserted into the side hole (2), the side surface of the bottom rod (4) is movably connected with a bottom plate (14), the side surface of the bottom rod (4) is in threaded connection with an adjusting nut (17), the adjusting nut (17) is connected with the bottom plate (14) through a second spring (18), the top of the bottom plate (14) is provided with a top rod (16), the top rod (16) is inserted into the bottom hole (3), the top of the main machine (1) is provided with a support (19), the top of the main machine (1) is provided with a communicating groove, the support (19) is located right above the communicating groove, a first dust filtering plate (20), a cooling fan (21) and a second dust filtering plate (22) are arranged inside the support (19), and a top cover (23) is arranged at the top of the support (19).

2. A laser autofocus home projector as claimed in claim 1, wherein: the side surface of the main machine (1) is an arc-shaped surface, the side plate (12) is an arc-shaped plate, and the radius corresponding to the arc-shaped plate is the same as that corresponding to the arc-shaped surface.

3. A laser autofocus home projector as claimed in claim 1, wherein: the one end that fixed pipe (5) kept away from host computer (1) has seted up ring groove, snap ring (8) are located ring groove's inside, the inside fixed connection of the side surface of interior hexagonal pipe (9) and snap ring (8).

4. A laser autofocus home projector as claimed in claim 1, wherein: one end of the first spring (11) far away from the inner nut (10) abuts against one end of the positioning ring (7) far away from the side plate (12), and one end of the first spring (11) far away from the side plate (12) abuts against one side, close to the side plate, of the inner nut (10).

5. A laser autofocus home projector as claimed in claim 1, wherein: the bottom end of the second spring (18) abuts against the top of the adjusting nut (17), and the top end of the second spring (18) abuts against the bottom of the bottom plate (14).

6. A laser autofocus home projector as claimed in claim 1, wherein: first slot and second slot have been seted up to the inside of support (19), first dust filter plate (20) are located the inside of first slot, second dust filter plate (22) are located the inside of second slot, the inner wall of support (19) is provided with the flange, radiator fan (21)'s bottom is connected with the top of flange.

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