CN211925669U

CN211925669U - Antifog lens subassembly and have its stage lamp

Info

Publication number: CN211925669U
Application number: CN202020697083.5U
Authority: CN
Inventors: 蒋伟楷; 其他发明人请求不公开姓名
Original assignee: Guangzhou Haoyang Electronic Co Ltd
Current assignee: Guangzhou Haoyang Electronic Co Ltd; Golden Sea Professional Equipment Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-11-13
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses an antifog lens subassembly and have its stage lamp, including lens cone, breather valve and two piece at least lenses, the lens is separated and is installed in the lens cone and at least two adjacent lenses form an airtight space with the cooperation of lens cone inside wall, is equipped with the scavenge hole on the lens cone lateral wall that airtight space corresponds, is equipped with waterproof ventilated membrane in the breather valve, and the breather valve setting is on the scavenge hole. When the light source works, the temperature inside the anti-fog lens assembly is higher than the temperature outside the anti-fog lens assembly, so that a larger internal and external air pressure difference is formed. The utility model discloses a set up on the antifog camera lens subassembly the breather valve makes antifog subassembly is when having inside and outside atmospheric pressure difference, and inside air passes through in the breather valve infiltration discharges to the outside, the pressure difference inside and outside balanced to block external steam simultaneously and follow the breather valve enters into in the antifog camera lens subassembly, thereby solves the fog phenomenon that the lens produced because of the steam condensation has guaranteed the illuminating effect of stage lamp.

Description

Antifog lens subassembly and have its stage lamp

Technical Field

The invention relates to the technical field of stage lamps, in particular to an anti-fog lens assembly and a stage lamp with the same.

Background

The existing stage lamp can generate a large amount of heat when a light source emits light, so that the temperature of the interior of the lamp including the lens assembly is high, pressure difference occurs between the interior and the exterior of the lens assembly, and the sealing performance of the lens assembly is damaged. The whole steam of water in the air can get into the lens subassembly from destroyed place when the lens subassembly cools off in, finally liquefies into the dribble and attaches to on the lens, produces the fog phenomenon, influences the illuminating effect of stage lamps and lanterns.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome an at least defect among the above-mentioned prior art, provide an antifog lens subassembly, effectively solved the lens subassembly at the defect of during operation lens fog condensation, ensured to use the illuminating effect of the stage lamps and lanterns of antifog subassembly.

In order to solve the technical problem, the utility model discloses a technical scheme is: an antifogging lens component comprises a lens barrel, a vent valve and at least two lenses, wherein the lenses are separately installed in the lens barrel, at least two adjacent lenses and the inner side wall of the lens barrel are matched to form a closed space, vent holes are formed in the side wall, corresponding to the closed space, of the lens barrel, a waterproof and breathable film is arranged in the vent valve, and the vent valve is arranged on the vent holes.

When the light source works, the temperature inside the anti-fog lens assembly is higher than the temperature outside the anti-fog lens assembly, so that a larger internal and external air pressure difference is formed. The utility model discloses a set up on the antifog camera lens subassembly the breather valve makes antifog subassembly is when having inside and outside atmospheric pressure difference, and inside air passes through in the breather valve infiltration discharges to the outside, the pressure difference inside and outside balanced to block external steam simultaneously and follow the breather valve enters into in the antifog camera lens subassembly, thereby solves the fog phenomenon that the lens produced because of the steam condensation has guaranteed the illuminating effect of stage lamp.

Further, the vent valve further comprises a valve cover and a valve main body, the valve main body is provided with a vent hole which communicates the closed space with the outside, the valve cover is arranged on one side of the valve main body and covers the vent hole of the closed space and is matched with the valve main body to form a through hole which enables the vent hole to be communicated with the outside, the valve main body is matched and fixed with the vent hole, the waterproof breathable film is arranged between the valve cover and the valve main body, and the periphery of the waterproof breathable film seals the vent hole. Utilize the valve gap cover in waterproof ventilated membrane is last, prevent that waterproof ventilated membrane from damaging or dust cover by the hard thing.

Further, the valve main part is close to the one end of valve gap is equipped with the membrane cavity, the width of membrane cavity is greater than the air vent, waterproof ventilated membrane sets up in the membrane cavity. The space function of the membrane chamber is utilized to achieve the effect of containing and protecting the waterproof breathable membrane.

Furthermore, one end of the valve main body, which is close to the valve cover, is provided with a plurality of protruding plug connectors, and the valve cover is provided with plug holes matched with the plug connectors. By arranging the plug connector and the plug hole, on one hand, the valve cover can be quickly positioned and fixed; on the other hand the valve gap detachably install in the valve main part is last, can conveniently change and maintain waterproof ventilated membrane.

Further, the valve body is threadedly connected with the ventilation hole. On the one hand, the installation of the ventilation valve is facilitated; on the other hand, the replacement and maintenance of the vent valve are convenient.

Further, the ventilation valve further comprises a sealing ring, and the valve main body and the ventilation hole are sealed through the sealing ring. On one hand, the water tightness of the anti-fog lens assembly is ensured; on the other hand, the exhaust demisting effect of the ventilation valve is ensured.

Furthermore, the plurality of the ventilation holes are respectively and correspondingly provided with the ventilation valves. Can make the inside steam of antifog lens subassembly can permeate fast and discharge to the outside, guarantees the antifog effect of steam extraction.

Further, the waterproof breathable film is made of polytetrafluoroethylene. The polytetrafluoroethylene material is of a microporous structure in a microcosmic mode, and the gas molecules can pass through micropores by utilizing the volume size and quantity level difference of the gas molecules, liquid and dust particles, and the liquid and the dust cannot pass through the micropores, so that the inside and the outside of the anti-fog lens assembly can permeate the waterproof breathable film to realize intercommunication, and meanwhile, the outside liquid water cannot permeate the waterproof breathable film to enter the anti-fog lens assembly.

The utility model also provides a stage lamp, including lamp holder and aforementioned any kind of waterproof camera lens subassembly, waterproof camera lens subassembly sets up on the lamp holder.

Furthermore, the part of the lens barrel provided with the vent hole is accommodated in the lamp cap, and a vent hole is arranged on the side wall of the lamp cap corresponding to the vent hole. And the water vapor in the lens component can be effectively discharged out of the stage lamp.

Drawings

Fig. 1 is a schematic sectional view of the combination structure of the anti-fog lens assembly of the present invention.

Fig. 2 is a schematic view of the overall structure of the anti-fog lens assembly of the present invention.

Fig. 3 is a schematic view of the whole structure combination of the vent valve of the present invention.

Fig. 4 is an exploded view of the whole structure of the vent valve of the present invention.

In the figure:

100. a lens barrel; 110. a ventilation hole; 200. a lens; 300. a vent valve; 310. a waterproof breathable film; 320. a valve cover; 321. inserting holes; 330. a valve body; 331. a plug-in unit; 340. a through hole; 350. a membrane chamber; 360. a seal ring; 400. and (4) sealing the space.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the present embodiments, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

As shown in fig. 1 to 4, the utility model provides an antifogging lens assembly, including lens cone 100, breather valve 300 and two piece at least lenses 200, lens 200 separate install in lens cone 100 and at least two adjacent the lens 200 with the cooperation of lens cone 100 inside wall forms an airtight space 400, airtight space 400 corresponds be equipped with the scavenge port 110 on the lens cone 100 lateral wall, its characterized in that still includes breather valve 300, be equipped with waterproof ventilated membrane 310 in the breather valve 300, breather valve 300 sets up on the scavenge port 110.

As shown in fig. 1, when the light source is in operation, the temperature inside the anti-fog lens assembly is higher than the temperature outside, so that a large difference between the internal air pressure and the external air pressure is formed. The utility model discloses a set up on the antifog lens subassembly ventilation valve 300, make antifog subassembly when there is inside and outside atmospheric pressure difference, inside air passes through in ventilation valve 300 infiltration discharges the outside, the pressure difference inside and outside balanced to block external steam simultaneously and follow ventilation valve 300 enters into in the antifog lens subassembly, solve the fog phenomenon that lens 200 produced because of the steam condensation to guarantee the illuminating effect of stage lamp.

In the preferred embodiment of the present invention, two of the lenses 200 are installed in the lens barrel 100 in parallel along the optical path direction, and form an enclosed space 400 with the side wall of the lens barrel 100, the enclosed space 400 corresponds to the side wall of the lens barrel 100, on which one of the ventilation holes 110 is disposed, and the ventilation valve 300 is disposed on the ventilation hole 110.

In other embodiments, three lenses 200 may be separately installed in the lens barrel 100, a total of two closed spaces 400 are formed between each two lenses 200 and the side wall of the lens barrel 100, and the ventilation holes 110 and the corresponding ventilation valves 300 are respectively formed on the side walls of the lens barrel 100 corresponding to the closed spaces 400.

The lens 200 may be a spherical lens, or may be a fresnel lens 200.

As shown in fig. 3, in a preferred embodiment of the present invention, the vent valve 300 further includes a valve cover 320 and a valve main body 330, the valve main body 330 has a vent hole for communicating the sealed space 400 with the outside, the valve cover 320 is disposed on one side of the valve main body 330 and covers the vent hole of the sealed space 400, and cooperates with the valve main body 330 to form a through hole 340 for communicating the vent hole with the outside, the valve main body 330 cooperates and fixes with the vent hole 110, the waterproof and breathable membrane 310 is disposed between the valve cover 320 and the valve main body 330, and the periphery seals the vent hole. The valve cover 320 is used for covering the waterproof breathable film 310, so that the waterproof breathable film 310 is prevented from being damaged by hard objects or covered by dust.

In other embodiments, the end of the valve body 330, to which the valve cap 320 is mounted, may be disposed in the ventilation hole 110, and the end of the valve body 330, away from the valve cap 320, is disposed outside the lens assembly.

In the preferred embodiment of the present invention, the valve body 330 is provided with a membrane chamber 350 at an end thereof close to the valve cover 320, the width of the membrane chamber 350 is larger than that of the vent hole, and the waterproof and breathable membrane 310 is disposed in the membrane chamber 350. The space function of the film chamber 350 is utilized to achieve the effect of accommodating and protecting the waterproof breathable film 310.

In other embodiments, the membrane chamber 350 may be disposed in the middle of the valve body 330 or at an end remote from the valve cap 320.

In the preferred embodiment of the present invention, as shown in fig. 4, a plurality of protruding connectors 331 are provided on one end of the valve body 330 near the valve cap 320, and the valve cap 320 is provided with a plurality of insertion holes 321 matching with the connectors 331. By arranging the plug piece 331 and the plug hole 321, on one hand, the valve cover 320 can be quickly positioned and fixed; on the other hand, the valve cover 320 is detachably mounted on the valve main body 330, so that the waterproof and breathable membrane 310 can be replaced and maintained conveniently. Preferably, the number of the plug-in components 331 is six, and the same number of the plug-in holes 321 are correspondingly arranged on the valve cover 320.

In other embodiments, the valve cap 320 and the valve body 330 may be one of a snap-fit connection, a threaded connection, or a fixed connection.

In a preferred embodiment of the present invention, the valve body 330 is threadedly coupled to the airing hole 110. On the one hand, the installation of the purge valve 300 is facilitated; on the other hand, replacement and maintenance of the breather valve 300 are facilitated.

In other embodiments, the valve body 330 can also be interference fit mounted to the transfer port 110.

In the preferred embodiment of the present invention, the ventilation valve 300 further includes a sealing ring 360, and the valve body 330 is sealed with the ventilation hole 110 by the sealing ring 360. On one hand, the water tightness of the anti-fog lens assembly is ensured; on the other hand, the steam exhaust and demisting effects of the ventilation valve 300 are guaranteed.

In the preferred embodiment of the present invention, the ventilation holes 110 are plural and are respectively provided with the ventilation valves 300. Can make the inside steam of antifog lens subassembly can permeate fast and discharge to the outside, guarantees the antifog effect of steam extraction. Preferably, the ventilation holes 110 are two and the same number of the ventilation valves 300 are correspondingly provided

Further, the waterproof and breathable film 310 is made of polytetrafluoroethylene. The polytetrafluoroethylene material is of a microporous structure in a microcosmic view, and the volume size and quantity difference of gas molecules, liquid and dust particles is utilized to enable the gas molecules to pass through the micropores, and the liquid and the dust to not pass through the micropores, so that the inside and the outside of the anti-fog lens assembly can be communicated through the waterproof breathable film 310, and meanwhile, the outside liquid water cannot enter the anti-fog lens assembly through the waterproof breathable film 310.

In other embodiments, the waterproof and breathable film 310 may be a PU film, a TPU film, or a PE polymer film.

Furthermore, the part of the lens barrel 100 provided with the ventilation hole 110 is accommodated inside the lamp head, and a ventilation hole is provided on the side wall of the lamp head corresponding to the ventilation hole 110. And the water vapor in the lens component can be effectively discharged out of the stage lamp.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The antifogging lens component comprises a lens barrel and at least two lenses, wherein the lenses are separately installed in the lens barrel, at least two adjacent lenses and the inner side wall of the lens barrel are matched to form a closed space, and ventilation holes are formed in the side wall, corresponding to the closed space, of the lens barrel.

2. The anti-fogging lens assembly according to claim 1, wherein the vent valve further comprises a valve cover and a valve main body, the valve main body having a vent hole communicating the closed space with the outside, the valve cover being provided on one side of the valve main body and covering the closed space vent hole and forming a through hole communicating the vent hole with the outside in cooperation with the valve main body, the valve main body being fixed in cooperation with the vent hole, the waterproof and breathable film being provided between the valve cover and the valve main body and having a periphery sealing the vent hole.

3. The anti-fogging lens assembly according to claim 2, characterised in that the valve body is provided with a membrane chamber at an end thereof adjacent to the valve cover, the membrane chamber having a width greater than the vent hole, the water-proof, gas-permeable membrane being provided within the membrane chamber.

4. The anti-fog lens assembly of claim 3, wherein the valve body is provided with a plurality of protruding connectors at one end thereof adjacent to the valve cover, and the valve cover is provided with insertion holes matched with the connectors.

5. The anti-fogging lens assembly according to claim 2, characterised in that the valve body is threaded with the venting holes.

6. The anti-fogging lens assembly according to claim 2, wherein the vent valve further includes a sealing ring, the valve body and the vent hole being sealed by the sealing ring.

7. The anti-fogging lens assembly according to claim 1, wherein the ventilation holes are plural and the ventilation valves are provided correspondingly to each other.

8. The anti-fogging lens assembly according to claim 1, characterised in that the material of the water-proof, breathable membrane is polytetrafluoroethylene.

9. A stage lamp comprising a lamp head and the anti-fog lens assembly of any one of claims 1 to 8, wherein the lens assembly is disposed on the lamp head.

10. The stage lamp according to claim 9, wherein the portion of the lens barrel provided with the ventilation holes is housed inside the lamp head, and the side wall of the lamp head is provided with ventilation holes corresponding to the ventilation holes.