CN213210695U

CN213210695U - Lens protection device for household projector

Info

Publication number: CN213210695U
Application number: CN202022152056.2U
Authority: CN
Inventors: 费亚萍; 宋有强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-05-14
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a lens protection device for a household projector, which comprises a shell, wherein one side of the shell is communicated with a lens cone, the inside of the lens cone is fixedly connected with a lens core, one side of the shell, which is close to one side of the lens cone, is welded with a second tube body, the inner side wall of the second tube body is connected with a first tube body in a sliding way, and the lens cone is positioned inside the second tube body and the first tube body; when the staff is adjusting lens cone and lens, through the inside sliding adjustment length of pulling first body at the second body, rotatory knob drives the screw rod and rotates, fix first body, thereby fine lens cone and the lens to the projecting apparatus protect when the projection, after finishing using withdraws the back with lens cone and lens, rotatory knob, inside the second body is withdrawed with first body, thereby play fine guard action when lens cone and lens are adjusted, greatly reduced the damage probability of lens cone and lens, convenient and practical.

Description

Lens protection device for household projector

Technical Field

The utility model relates to a projector lens protects technical field, specifically is a lens protection device for domestic projecting apparatus.

Background

As is well known, a projector, also called a projector, is a device capable of projecting images or videos onto a screen, and can be connected with a computer, a VCD, a DVD, a game machine, a DV, etc. through different interfaces to play corresponding video signals, and is widely applied to homes, offices, schools, and entertainment places.

The invention is disclosed in China: CN209879236U discloses a lens protection device for projecting apparatus, it is when using, can be through left protective housing, right protective housing, left side elasticity strap, the cooperation of right side elasticity strap is the lens of different specifications provides the protection, cooperation through a location section of thick bamboo and connecting rod, make left side structure and right side structural connection process stably can not appear the skew, it is effectual to protect, the dust screen lid is at left side structure and right side structural connection completion after left side upset knot in the lens front side, effective protection lens when the lens is not used, nevertheless there is following problem still:

the length of camera lens and lens cone can be adjusted according to the actual projection condition to the staff in the use of projecting apparatus to realize clear projection picture, if the length of lens cone surpasses protection architecture's protective range when adjusting, then can lead to protection architecture can't protect lens and lens cone, greatly increased the damage probability of projecting apparatus lens, for this reason, propose a domestic lens protection device for projecting apparatus.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the not enough of prior art, the utility model provides a lens protection device for domestic projecting apparatus.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a lens protection device for a household projector comprises a shell, wherein one side of the shell is communicated with a lens barrel, a lens core is fixedly connected inside the lens barrel, a second tube body is welded on one side, close to the lens barrel, of the shell, a first tube body is slidably connected to the inner side wall of the second tube body, the lens barrel is positioned inside the second tube body and the first tube body, a fixed block is welded on the outer side wall of the first tube body, a third plate body is hinged to the upper surface of the fixed block, a cover body is welded on the upper surface of the third plate body, a second plate body is welded on one side, far away from the first tube body, of the cover body, a first plate body is welded on the outer side wall of the first tube body, a second thread through hole is formed in the outer side wall of the second tube body, a screw rod is connected to the inner thread of the second thread through hole, two through grooves are formed in the front surface and the rear surface of the shell respectively, a fan is fixedly connected inside each through groove, radiating fins are fixedly connected inside each through groove, and a copper pipe is welded on one side of each radiating fin.

Preferably, the inside of the two through grooves is fixedly connected with a filter screen.

Preferably, first screw thread through holes are formed in one sides of the first plate body and the second plate body, and fixing bolts are connected to the inner portions of the first screw thread through holes in a threaded mode.

Preferably, a sealing gasket is bonded to one side of the cover body.

Preferably, the inner side wall of the second pipe body is bonded with a non-slip mat.

Preferably, four first rod bodies are symmetrically and fixedly connected to four corners of the lower surface of the shell, and one ends of the first rod bodies, far away from the shell, are respectively and fixedly connected with suckers.

(III) advantageous effects

Compared with the prior art, the utility model provides a lens protection device for domestic projecting apparatus possesses following beneficial effect:

when the staff is adjusting lens cone and lens, through the inside sliding adjustment length of pulling first body at the second body, rotatory knob drives the screw rod and rotates, fix first body, thereby fine lens cone and the lens to the projecting apparatus protect when the projection, after finishing using to withdraw lens cone and lens, rotatory knob, inside withdrawing the second body with first body, thereby play fine guard action when lens cone and lens are adjusted, greatly reduced the damage probability of lens cone and lens.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the structure of the present invention;

fig. 3 is a schematic rear view of the present invention;

fig. 4 is a schematic view of the internal structure of the second tube of the present invention.

In the figure: 1. a housing; 2. a knob; 3. a screw; 4. fixing the bolt; 5. a first plate body; 6. a first threaded through hole; 7. a gasket; 8. a second plate body; 9. a cover body; 10. a fixed block; 11. a first pipe body; 12. a second tube body; 13. a fan; 14. a suction cup; 15. a first rod body; 16. a copper pipe; 17. a lens barrel; 18. a through groove; 19. a second threaded through hole; 20. a heat dissipating fin; 21. a non-slip mat; 22. a third plate body; 23. a lens core; 24. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a lens protection device for a household projector comprises a shell 1, wherein one side of the shell 1 is communicated with a lens barrel 17, a lens core 23 is fixedly connected inside the lens barrel 17, one side of the shell 1, which is close to the lens barrel 17, is welded with a second tube body 12, the inner side wall of the second tube body 12 is connected with a first tube body 11 in a sliding manner, the lens barrel 17 is positioned inside the second tube body 12 and the first tube body 11, the outer side wall of the first tube body 11 is welded with a fixed block 10, the upper surface of the fixed block 10 is hinged with a third tube body 22, the upper surface of the third tube body 22 is welded with a cover body 9, one side of the cover body 9, which is far away from the first tube body 11, is welded with a second tube body 8, the outer side wall of the first tube body 11 is welded with a first tube body 5, the outer side wall of the second tube body 12 is provided with a second thread through, two through grooves 18 have been seted up respectively to the front surface and the rear surface of casing 1, and the equal fixedly connected with fan 13 in inside of two through grooves 18, the inside fixedly connected with radiating fin 20 of two through grooves 18, and the welding of one side of radiating fin 20 has copper pipe 16.

In this embodiment, specifically: the filter screen 24 is fixedly connected inside the two through grooves 18; by the arrangement of the filter net 24, dust is prevented from entering the inside of the housing 1 through the through groove 18 when the fan 13 stops working, and the electric components inside the housing 1 are prevented from being damaged.

In this embodiment, specifically: a first threaded through hole 6 is formed in one side of each of the first plate body 5 and the second plate body 8, and a fixing bolt 4 is connected to the inner part of each first threaded through hole 6 in a threaded manner; through the setting of first screw through-hole 6 and fixing bolt 4, close the lid 9 through articulated one end with first body 11 after, fix lid 9, prevent that lid 9 from rocking when removing casing 1 from striking first body 11.

In this embodiment, specifically: one side of the cover body 9 is bonded with a sealing gasket 7; through the setting of sealed pad 7, when closing the one end of first body 11 to play the sealed effect, prevent that the gap entering between first body 11 and the second body 12 of dust through lid 9 and first body 11 from leading to the mirror center 23 wearing and tearing.

In this embodiment, specifically: the inner side wall of the second pipe body 12 is bonded with an anti-skid pad 21; through the setting of slipmat 21, when first body 11 slided in the inside of second body 12, increase the frictional force of first body 11 between second body 12, improve the fixed effect of knob 2 to first body 11.

In this embodiment, specifically: four first rod bodies 15 are symmetrically and fixedly connected to four corners of the lower surface of the shell 1, and one ends, far away from the shell 1, of the four first rod bodies 15 are respectively and fixedly connected with suckers 14; through the setting of first body of rod 15 and sucking disc 14, fix casing 1 on the mesa, prevent that the removal of casing 1 from leading to reducing the projection effect in the projection process.

In this embodiment, a switch set for controlling the on/off of the fan 13 is installed on one side of the housing 1, and the switch set is connected to the external commercial power to supply power to the fan 13.

To sum up, the working principle and the working process of the lens protection device for the household projector are that, when in use, the shell 1 is firstly placed on a table top, the shell 1 is fixed through the adsorption of the sucker 14, when in projection, a worker adjusts the positions of the lens barrel 17 and the lens core 23, after the adjustment is finished, the first tube 11 is pulled to slide in the second tube 12, the rotary knob 2 drives the screw rod 3 to rotate in the second threaded through hole 19, so that the first tube 11 is fixed in the second tube 12, the switch for controlling the fan 13 to be started and closed is pressed, the copper pipe 16 absorbs heat from the elements in the shell 1, the heat is transferred through the radiating fins 20, the fan 13 discharges the heat out of the shell 1, thereby radiating the electrical elements in the shell 1, preventing the heat from influencing the projection effect of the lens core 23, and after the projection is finished, the upset knob 2 drives the screw rod 3 and keeps away from first body 11, thereby withdraw the inside of second body 12 with first body 11, it is articulated at the upper surface of fixed block 10 through third plate body 22, cover the one end at first body 11 with lid 9, thereby prevent that the inside that the dust got into first body 11 and second body 12 from producing wearing and tearing to the microscope core 23, one side of first plate body 5 and one side laminating of second plate body 8, rotatory fixing bolt 4, fix first plate body 5 and second plate body 8, prevent that lid 9 from controlling the rocking and can't seal first body 11, convenience and practicality.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lens protection device for a home projector, comprising a housing (1), characterized in that: one side of the shell (1) is communicated with a lens barrel (17), a lens core (23) is fixedly connected inside the lens barrel (17), a second tube body (12) is welded on one side, close to the lens barrel (17), of one side of the shell (1), a first tube body (11) is connected to the inner side wall of the second tube body (12) in a sliding mode, the lens barrel (17) is located inside the second tube body (12) and the first tube body (11), a fixing block (10) is welded on the outer side wall of the first tube body (11), a third plate body (22) is hinged to the upper surface of the fixing block (10), a cover body (9) is welded on the upper surface of the third plate body (22), a second plate body (8) is welded on one side, far away from the first tube body (11), a first plate body (5) is welded on the outer side wall of the first tube body (11), a second thread through hole (19) is formed in the outer side wall of the second tube, the inside threaded connection of second screw thread through-hole (19) has screw rod (3), keep away from screw rod (3) the one end welding of second body (12) has knob (2), two logical groove (18), two have been seted up respectively to the front surface and the rear surface of casing (1) the equal fixedly connected with fan (13) in inside that leads to groove (18), two lead to the inside fixedly connected with radiating fin (20) of groove (18), one side welding of radiating fin (20) has copper pipe (16).

2. A lens protective device for a home projector according to claim 1, wherein: and filter screens (24) are fixedly connected inside the through grooves (18).

3. A lens protective device for a home projector according to claim 2, wherein: first screw thread through-hole (6) have all been seted up to one side of first plate body (5) and second plate body (8), the equal threaded connection in inside of first screw thread through-hole (6) has fixing bolt (4).

4. A lens protective device for a home projector according to claim 1, wherein: and a sealing gasket (7) is bonded on one side of the cover body (9).

5. A lens protective device for a home projector according to claim 1, wherein: and the inner side wall of the second pipe body (12) is adhered with a non-slip mat (21).

6. A lens protective device for a home projector according to claim 1, wherein: the lower surface four corners department symmetry fixedly connected with of casing (1) is four first body of rod (15), four first body of rod (15) are kept away from the one end fixedly connected with sucking disc (14) respectively of casing (1).