Water mist prevention stage lamp

Abstract

The stage lamp comprises a lamp shell and a light source installed in the lamp shell, the lamp shell is provided with a light outlet channel and a light outlet, and a light path of the light source is emitted out of the light outlet after passing through the light outlet channel; at least two lenses are arranged in the light outlet channel in the light path direction from inside to outside, the lenses at least comprise a first lens and a second lens which are arranged at intervals, and the first lens and the second lens are connected with the lamp shell in a sealed mode, so that the first lens, the second lens and the light outlet channel form a sealed cavity; the device has the advantages of being flexible in design, convenient to install and capable of reducing faults.

Description

Technical Field

[0001] The invention relates to the technical field of lighting, and in particular to a fog-proof stage lamp. Background Art

[0002] The prior art discloses (CN211925669U) an anti-fog lens assembly and a stage light having the same, comprising a lens barrel, a breathable valve and at least two lenses, wherein the lenses are separately installed in the lens barrel and at least two adjacent lenses cooperate with the inner side wall of the lens barrel to form a closed space, and a ventilation hole is provided on the side wall of the lens barrel corresponding to the closed space, and a waterproof breathable membrane is provided in the breathable valve, and the breathable valve is arranged on the ventilation hole. In the prior art, the lens and the lens barrel cooperate to form a closed space to prevent the lens from fogging, but the design conditions of the stage light such as the space and the shape of the lens are also limited due to the existence of the lens barrel, and therefore cannot meet different stage layouts and performance requirements. Summary of the invention

[0003] The invention is to solve one of the above technical problems and provide a fog-proof stage lamp. The lens is directly and sealedly connected to the lamp housing. It is not limited by the lens barrel, which makes the design and production more flexible and also makes the installation of the lens of the stage lamp more convenient.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A fog-proof stage lamp comprises a lamp housing and a light source installed in the lamp housing, wherein the lamp housing has a light outlet channel and a light outlet port, and the light path of the light source is emitted from the light outlet port after passing through the light outlet channel; at least two lenses are arranged in the light outlet channel and along the light path direction from inside to outside, and the lenses at least comprise a first lens and a second lens which are spaced apart from each other, and the first lens and the second lens are respectively sealed and connected to the lamp housing, so that the first lens, the second lens and the light outlet channel form a closed cavity.

[0006] As a preferred embodiment, it is further defined that an inwardly protruding annular flange is provided in the light output channel, a first annular sink with a step surface facing the second lens is provided in the light output channel, the first annular sink is fixedly connected with a first annular pressure piece so that a sealing groove is formed between the first annular pressure piece and the annular flange, and the outer edge of the second lens is clamped in the sealing groove through a sealing ring.

[0007] As a preferred embodiment, it is further defined as: a first annular sink with a step surface facing away from the second lens is provided in the light exit channel; a first annular pressure piece is fixedly provided at the light exit so that a sealing groove is formed between the first annular pressure piece and the first annular sink; and the outer edge of the second lens is clamped in the sealing groove through a sealing ring.

[0008] As a preferred embodiment, it is further defined that the sealing ring includes a first annular portion, a second annular portion and a connecting portion, the first annular portion and the second annular portion are spaced apart in an upper and lower manner, and two ends of the connecting portion are respectively connected to the outer sides of the first annular portion and the second annular portion to form a sleeve groove, and the sealing sleeve is sleeved on the outer edge of the second lens through the sleeve groove.

[0009] As a preferred embodiment, it is further defined that the second lens has a curved portion for the light of the light source to emit and a flat portion for the light of the light source to enter, the angle formed by the first annular portion and the connecting portion is in the range of 120°-150°, the angle formed by the second annular portion and the connecting portion is 90°, the first annular portion is in contact with the curved portion, and the second annular portion is in contact with the flat portion.

[0010] As a preferred embodiment, it is further defined that a partition is provided in the light output channel and is integrally formed with or sealed with the lamp housing, the partition is penetrated by a through hole, an annular protrusion block is provided on the outer periphery of the first lens, and when the first lens is passed through the through hole, the annular protrusion block is sealed and connected to the partition through a sealing ring.

[0011] As a preferred embodiment, it is further defined that a breathable valve is provided in the sealed cavity.

[0012] After adopting the above technical scheme, the invention has at least the following beneficial effects: the lens is directly sealed and connected to the lamp housing to form a closed cavity to prevent the lens from fogging, and at the same time, the installation of the lens barrel can be reduced. Without the need for a lens barrel, it brings us the following benefits: 1. Flexible design: without the limitation of the lens barrel, the design and production of stage lights will be more flexible, and different shapes and sizes can be customized as needed to meet different stage layouts and performance requirements; 2. Convenient installation: the design without a lens barrel also makes the stage lighting equipment easier to install and use, and no additional space is required to install the lens barrel, which saves a lot of space and improves space utilization; 3. Reduce failures: the design without a lens barrel also makes the stage light more durable, reduces equipment failures caused by damage to the lens barrel, and improves the stability and reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded view of the first embodiment;

[0014] Figure 2 is a cross-sectional view of the first embodiment;

[0015] Figure 3 yes Figure 2 A magnified view of point A;

[0016] Figure 4 yes Figure 2 The enlarged view of point B;

[0017] Figure 5 is a cross-sectional view of the lamp housing of the first embodiment;

[0018] Figure 6 is a structural diagram of the sealing ring of the first embodiment;

[0019] Figure 7 is an exploded view of the second embodiment;

[0020] Figure 8 is a cross-sectional view of the second embodiment;

[0021] Fig. 9 yes Figure 8 The enlarged view of point C;

[0022] Fig.10 yes Figure 8 The enlarged view of point D;

[0023] Fig.11 is a cross-sectional view of the lamp housing of the second embodiment. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments in the present application and the features described in the embodiments may be combined with each other. The present application is further described in detail below in conjunction with the drawings and specific embodiments.

[0025] Embodiment 1: As shown in the attached Figure 1 To Attachment Figure 6As shown, a fog-proof stage lamp comprises a lamp housing 1 and a light source installed in the lamp housing 1, wherein the lamp housing 1 has a light outlet channel 11 and a light outlet port 10, and the light path of the light source is emitted from the light outlet port 10 after passing through the light outlet channel 11; at least two lenses are arranged in the light outlet channel 11 and along the light path direction from the inside to the outside, and the lenses at least comprise a first lens 2 and a second lens 3 which are spaced apart from each other, and the first lens 2 and the second lens 3 are respectively sealed and connected to the lamp housing 1, so that the first lens 2, the second lens 3 and the light outlet channel 11 form a closed cavity; the lenses can play an anti-fogging role and reduce the lens barrel at the same time. Installation; Compared with the prior art, the invention has the following beneficial effects: 1. Flexible design: There is no limitation of the lens barrel, which makes the design and production of stage lights more flexible, and different shapes and sizes can be customized according to needs, meeting different stage layouts and performance requirements; 2. Convenient installation: The design without lens barrel also makes stage lighting equipment easier to install and use, and no additional space is required to install the lens barrel, which saves a lot of space and improves space utilization; 3. Reduce failures: The design without lens barrel also makes stage lights more durable, reduces equipment failures caused by damage to the lens barrel, and improves stability and reliability of use.

[0026] As attached Figure 2 and attached Figure 3 As shown, an inwardly protruding annular flange 12 is provided in the light outlet channel 11, and a first annular recessed platform 13 with a step surface facing the second lens 3 is provided in the light outlet channel 11. The first annular recessed platform 13 is fixedly connected with a first annular pressing piece 14 so that a sealing groove 100 is formed between the first annular pressing piece 14 and the annular flange 12, and the outer edge of the second lens 3 is clamped in the sealing groove 100 through a sealing ring 4; the sealing ring is beneficial to increase the sealing connectivity between the second lens 3 and the inner wall of the lamp housing, preventing water vapor from entering the closed cavity, thereby avoiding the generation of fog on the lens and affecting the light and shadow effects of the stage lamp.

[0027] As attached Figure 2 , Attachment Figure 3 and attached Figure 6 As shown, the sealing ring 4 includes a first annular portion 41, a second annular portion 42 and a connecting portion 43. The first annular portion 41 and the second annular portion 42 are spaced apart from each other, and both ends of the connecting portion 43 are respectively connected to the outer sides of the first annular portion 41 and the second annular portion 42 to form a sleeve groove 400. The sealing sleeve is sleeved on the outer edge of the second lens 3 through the sleeve groove 400. The sleeve groove 400 plays a role in wrapping the outer edge of the second lens 3, further increasing the airtightness of the connection between the second lens 3, the sealing ring 4 and the lamp housing 1.

[0028] As attached Figure 3As shown, the second lens 3 has a curved portion 31 for the light of the light source to emit and a flat portion 32 for the light of the light source to enter, the angle formed by the first annular portion 41 and the connecting portion 43 is in the range of 120°-150°, the angle formed by the second annular portion 42 and the connecting portion 43 is 90°, the first annular portion 41 fits with the curved portion 31, the second annular portion 42 fits with the flat portion 32, the first annular portion 41 and the second annular portion 42 respectively form a certain angle with the connecting portion 43, which is conducive to increasing the tightness of the fit between the sealing ring 4 and the second lens 3, and further increasing the airtightness.

[0029] As attached Figure 2 and attached Figure 5 As shown, the light outlet channel 11 is provided with a sealed partition 15, and when the sealed connection is made, the partition 15 can be sealed with the lamp housing through a sealing ring. Specifically, the lamp housing is provided with a receiving groove for accommodating the sealing ring, and the end surface of the partition 15 is in close contact with the sealing ring; or Figure 8 and attached Fig.11 As shown, a partition 15 integrally formed with the lamp housing 1 is provided in the light outlet channel 11; a through hole 151 is provided through the partition 15, and an annular protrusion block 21 is provided on the outer periphery of the first lens 2. When the first lens 2 is inserted into the through hole 151, the annular protrusion block 21 is sealed and connected with the partition 15 through another sealing ring. Specifically, a receiving groove for receiving another sealing ring is provided on the partition 15 and around the outer periphery of the through hole 151, and the end face of the annular protrusion block 21 is in close contact with the sealing ring. Of course, the partition 15 may not need to be provided with a receiving groove, and the partition 15 may be in close contact with the end face of the partition 15 directly through another sealing ring; for further explanation, two different design modes of the partition 15 may be selectively included in the first embodiment and the following second embodiment.

[0030] As attached Fig.11 As shown, the enclosed cavity is provided with a breathable valve 5 which can communicate with the outside world, and is used to balance the pressure difference between the inside and outside of the enclosed cavity, and at the same time prevent the external water vapor from entering the enclosed cavity through the breathable valve, thereby solving the fogging phenomenon of the lens caused by water vapor condensation, thereby ensuring the lighting effect of the stage lamp.

[0031] Embodiment 2, as attached Figure 7 To Attachment Fig.11 As shown, the difference between the second embodiment and the first embodiment is that the step surface of the first annular sink 13 faces in a different direction and the first annular pressing piece 14 is disposed in a different position.

[0032] Specifically, a first annular depression 13 with a step surface facing away from the second lens 3 is provided in the light outlet channel 11, and a first annular pressing piece 14 is fixedly provided at the light outlet 10 so that a sealing groove 100 is formed between the first annular pressing piece 14 and the first annular depression 13, and the outer edge of the second lens 3 is clamped in the sealing groove 100 through a sealing ring 4, which also effectively ensures the airtightness among the second lens 3, the sealing ring 4 and the lamp housing 1.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various equivalent 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 fog-proof stage lamp, comprising a lamp housing (1) and a light source installed in the lamp housing (1), the lamp housing (1) having a light outlet channel (11) and a light outlet (10), the light path of the light source passing through the light outlet channel (11) and then emitted from the light outlet (10); at least two lenses are arranged in the light outlet channel (11) and along the light path direction from inside to outside, the lenses at least comprising a first lens (2) and a second lens (3) spaced apart from each other, characterized in that: The first lens (2) and the second lens (3) are respectively sealed and connected to the lamp housing (1), so that the first lens (2), the second lens (3) and the light output channel (11) form a closed cavity.

2. The anti-fog stage light according to claim 1, characterized in that: An inwardly protruding annular flange (12) is provided in the light exit channel (11), a first annular sink (13) with a stepped surface facing the second lens (3) is provided in the light exit channel (11), the first annular sink (13) is fixedly connected to a first annular pressing piece (14) so ​​that a sealing groove (100) is formed between the first annular pressing piece (14) and the annular flange (12), and the outer edge of the second lens (3) is clamped in the sealing groove (100) via a sealing ring (4).

3. The anti-fog stage light according to claim 1, characterized in that: A first annular depression (13) with a stepped surface facing away from the second lens (3) is provided in the light exit channel (11); a first annular pressing piece (14) is fixedly provided at the light exit port (10) so that a sealing groove (100) is formed between the first annular pressing piece (14) and the first annular depression (13); and the outer edge of the second lens (3) is clamped in the sealing groove (100) via a sealing ring (4).

4. The anti-fog stage light according to claim 2 or 3, characterized in that: The sealing sleeve (4) comprises a first annular portion (41), a second annular portion (42) and a connecting portion (43); the first annular portion (41) and the second annular portion (42) are spaced apart from each other in an upper and lower direction; two ends of the connecting portion (43) are respectively connected to the outer sides of the first annular portion (41) and the second annular portion (42) to form a sleeve groove (400); the sealing sleeve is sleeved onto the outer edge of the second lens (3) through the sleeve groove (400).

5. The anti-fog stage light according to claim 4, characterized in that: The second lens (3) comprises a curved surface portion (31) for light from the light source to be emitted, and a flat surface portion (32) for light from the light source to be emitted. The angle formed by the first annular portion (41) and the connecting portion (43) is in the range of 120°-150°. The angle formed by the second annular portion (42) and the connecting portion (43) is 90°. The first annular portion (41) is in contact with the curved surface portion (31), and the second annular portion (42) is in contact with the flat surface portion (32).

6. The anti-fog stage light according to claim 2 or 3, characterized in that: A partition (15) is provided in the light exit channel (11) and is integrally formed with or sealed to the lamp housing (1); a through hole (151) is provided through the partition (15); an annular protrusion (21) is provided on the outer periphery of the first lens (2); when the first lens (2) is passed through the through hole (151), the annular protrusion (21) is sealed to the partition (15) via a sealing ring.

7. The anti-fog stage light according to claim 1, characterized in that: A vent valve (5) is provided in the sealed cavity.

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