Installation structure of Fresnel lens of search lamp

Abstract

The utility model discloses a mounting structure of a Fresnel lens of a search lamp, and belongs to the technical field of marine lighting. Comprising a lens mounting support, a Fresnel lens and a lens fixing piece, the lens mounting support is circular and comprises a central lens frame, a plurality of inner ring lens frames continuously distributed around the central lens frame and a plurality of outer ring lens frames continuously distributed around the plurality of inner ring lens frames; the Fresnel lens is matched with the central lens frame, the inner ring lens frames and the outer ring lens frames to form a central lens, a plurality of inner ring lenses and a plurality of outer ring lenses respectively, and a central lens mounting groove used for mounting the central lens is formed in the inner side of the top of the central lens frame. Inner ring lens mounting grooves used for mounting inner ring lenses are formed in the inner sides of the tops of the inner ring lens frames respectively, and the lens fixing piece is arranged above the Fresnel lens. The Fresnel lens fixing device has the advantages that the Fresnel lens can be directly positioned and fixed, the roundness of light source irradiation light spots is ensured, the production cost is saved, and the installation difficulty of the Fresnel lens is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of marine lighting technology, specifically relating to an installation structure for a Fresnel lens of a searchlight. Background Technology

[0002] Existing marine lighting mainly consists of main lighting, emergency lighting, temporary emergency lighting, navigation lights, and signal lights. Searchlights, falling under the category of navigation lights and signal lights, are designed to illuminate targets several kilometers away. Therefore, Fresnel lenses are added to the light source to increase the illumination distance. Currently, the Fresnel lens is simply fixed to the bracket with screws without proper positioning. Consequently, after assembly, the Fresnel lens requires manual fine-tuning to ensure the roundness of the light spot. After adjustment, it is then secured manually with adhesive. Once the adhesive dries, the screws are removed, and the Fresnel lens mounting plate is installed. This process involves numerous steps, significantly increasing production costs.

[0003] In view of the aforementioned existing technology, the applicant has made beneficial designs, and the technical solutions to be introduced below are produced in this context. Utility Model Content

[0004] The purpose of this invention is to provide an installation structure for a Fresnel lens for a searchlight, which simplifies the installation of the Fresnel lens and saves production costs.

[0005] The purpose of this utility model is achieved as follows: a mounting structure for a Fresnel lens of a searchlight includes a lens mounting bracket, a Fresnel lens, and a lens fixing plate. The lens mounting bracket is located at the bottom of the Fresnel lens to support it. The lens mounting bracket is circular and includes a central lens frame, multiple inner lens frames continuously distributed around the central lens frame, and multiple outer lens frames continuously distributed around the inner lens frames. The Fresnel lens is adapted to the central lens frame, the inner lens frames, and the outer lens frames to form a central lens, multiple inner lens frames, and multiple outer lens frames, respectively. The central lens frame has a central lens mounting groove on its top inner side for mounting the central lens. The multiple inner lens frames each have an inner lens mounting groove on their top inner side for mounting the inner lens. The multiple outer lens frames each have an outer lens mounting groove on their top inner side for mounting the outer lens. The lens fixing plate is positioned above the Fresnel lens and is fixed to the lens mounting bracket by screws, thereby fixing the Fresnel lens.

[0006] In a specific embodiment of this utility model, the depths of the central lens mounting groove, the inner ring lens mounting groove, and the outer ring lens mounting groove are consistent, and the thicknesses are the same as those of the central lens, the multiple inner ring lenses, and the multiple outer ring lenses.

[0007] In another specific embodiment of this utility model, the central lens frame and the central lens are circular, and the inner lens frame, the inner lens, the outer lens frame, and the outer lens are fan-shaped.

[0008] In another specific embodiment of this utility model, the lens fixing piece includes a central pressing frame, an inner arc-edge pressing frame located around the central pressing frame, and an outer arc-edge pressing frame located around the inner arc-edge pressing frame. Multiple inner side pressing frames are connected between the central pressing frame and the inner arc-edge pressing frame. Multiple outer side pressing frames are connected between the inner and outer arc-edge pressing frames. The central pressing frame is pressed onto the outer edge of the central lens and the inner arc-edge of each inner lens. The inner arc-edge pressing frames are pressed onto the outer arc-edge of each inner lens and the inner arc-edge of each outer lens. The outer arc-edge pressing frames are pressed onto the outer arc-edge of each outer lens. The inner side pressing frames are pressed onto the sides of two adjacent inner lenses, and the outer side pressing frames are pressed onto the sides of two adjacent outer lenses.

[0009] In another specific embodiment of this utility model, the screw passes through the central pressure frame, the inner arc edge pressure frame, the outer arc edge pressure frame, the inner side pressure frame, and the outer side pressure frame in sequence and is fastened to the lens mounting bracket.

[0010] This invention, by creating a lens mounting groove on the lens mounting bracket, offers several advantages over existing technologies. Firstly, it allows for direct positioning and fixing of the Fresnel lens, reducing processing steps and ensuring a round light spot, significantly saving production costs and greatly reducing the difficulty of installing the Fresnel lens. Secondly, the lens mounting bracket facilitates the installation of Fresnel lenses with a distributed structure, increasing the consistency of lamp production and improving production efficiency. Attached Figure Description

[0011] Figure 1 This is an exploded view of the structure of this utility model;

[0012] Figure 2 This is a side sectional view of the present invention;

[0013] Figure 3 for Figure 2 Enlarged view of part A in the image.

[0014] In the diagram: 1. Lens mounting bracket; 11. Central lens frame; 111. Central lens mounting slot; 12. Inner lens frame; 121. Inner lens mounting slot; 13. Outer lens frame; 131. Outer lens mounting slot; 2. Fresnel lens; 21. Central lens; 22. Inner lens; 23. Outer lens; 3. Lens fixing plate; 31. Central clamping frame; 32. Inner arc edge clamping frame; 33. Outer arc edge clamping frame; 34. Inner side clamping frame; 35. Outer side clamping frame; 4. Screw. Detailed Implementation

[0015] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes made based on the concept of this utility model should be considered within the protection scope of this utility model.

[0016] In the following description, all directional (or orientational) concepts involving up, down, left, right, front, and back refer to the position of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be construed as a special limitation on the technical solution provided by this utility model.

[0017] Please see Figures 1 to 3 This utility model relates to an installation structure for a Fresnel lens of a searchlight, including a lens mounting bracket 1, a Fresnel lens 2, and a lens fixing plate 3.

[0018] The lens mounting bracket 1 is located at the bottom of the Fresnel lens 2 and is used to support the Fresnel lens 2. The lens mounting bracket 1 is circular and includes a central lens frame 11, a plurality of inner lens frames 12 continuously distributed around the central lens frame 11, and a plurality of outer lens frames 13 continuously distributed around the plurality of inner lens frames 12. The Fresnel lens 2 is adapted to the central lens frame 11, the inner lens frames 12, and the outer lens frames 13 to form a central lens 21, a plurality of inner lens frames 22, and a plurality of outer lens frames 23, respectively. The central lens frame 11 and the central lens 21 are circular, and the inner lens frames 12, the inner lens frames 22, the outer lens frames 13, and the outer lens frames 23 are fan-shaped. To position the central lens 21, inner lens 22, and outer lens 23 during installation, the central lens frame 11 has a central lens mounting groove 111 formed on its top inner side for mounting the central lens 21. Multiple inner lens frames 12 each have an inner lens mounting groove 121 formed on their top inner sides for mounting the inner lens 22. Multiple outer lens frames 13 each have an outer lens mounting groove 131 formed on their top inner sides for mounting the outer lens 23. The depths of the central lens mounting groove 111, inner lens mounting groove 121, and outer lens mounting groove 131 are consistent, and their thicknesses are the same as those of the central lens 21, multiple inner lenses 22, and multiple outer lenses 23. This means that after each lens is installed in its corresponding mounting groove, it is flush with the upper surface of the lens mounting bracket 1.

[0019] In this structure, the Fresnel lens 2 is composed of a central lens 21, an inner lens 22, and an outer lens 23. The lens mounting bracket 1 facilitates the installation of the central lens 21, the inner lens 22, and the outer lens 23, making it easy to assemble the central lens 21, the inner lens 22, and the outer lens 23 into a Fresnel lens 2 with a larger area, which can meet the illumination requirements at a specific distance.

[0020] The lens fixing plate 3 is positioned above the Fresnel lens 2 and fixed to the lens mounting bracket 1 by screws 4, thereby securing the Fresnel lens 2. Specifically, the lens fixing plate 3 includes a central pressure frame 31, an inner arc-edge pressure frame 32 located around the central pressure frame 31, and an outer arc-edge pressure frame 33 located around the inner arc-edge pressure frame 32. The central pressure frame 31, the inner arc-edge pressure frame 32, and the outer arc-edge pressure frame 33 are concentrically arranged. Multiple inner side pressure frames 34 connect the central pressure frame 31 and the inner arc-edge pressure frame 32, and multiple outer side pressure frames 35 connect the inner arc-edge pressure frame 32 and the outer arc-edge pressure frame 33. The central retaining frame 31 is pressed onto the outer edge of the central lens 21 and the inner arc edges of each inner ring lens 22. The inner arc edge retaining frame 32 is pressed onto the outer arc edges of each inner ring lens 22 and the inner arc edges of each outer ring lens 23. The outer arc edge retaining frame 33 is pressed onto the outer arc edges of each outer ring lens 23. The inner side retaining frame 34 is pressed onto the sides of two adjacent inner ring lenses 22, and the outer side retaining frame 35 is pressed onto the sides of two adjacent outer ring lenses 23. Multiple screws 4 pass sequentially through the central retaining frame 31, the inner arc edge retaining frame 32, the outer arc edge retaining frame 33, the inner side retaining frame 34, and the outer side retaining frame 35, and are securely connected to the lens mounting bracket 1. Thus, the central lens 21, the inner ring lenses 22, and the outer ring lenses 23 are fixed and the installation is completed.

[0021] This invention features a mounting slot on the lens mounting bracket 1 that is adapted to the Fresnel lens 2, allowing the Fresnel lens 2 to be directly positioned and fixed during installation. This reduces the number of steps, ensures the roundness of the light spot illuminated by the light source, greatly saves production costs, and significantly reduces the difficulty of installing the Fresnel lens, thus achieving the purpose of the invention.

Claims

1. A mounting structure for a Fresnel lens of a searchlight, comprising a lens mounting bracket (1), a Fresnel lens (2), and a lens fixing plate (3), characterized in that: The lens mounting bracket (1) is located at the bottom of the Fresnel lens (2) and is used to support the Fresnel lens (2). The lens mounting bracket (1) is circular and includes a central lens frame (11), a plurality of inner lens frames (12) continuously distributed around the central lens frame (11), and a plurality of outer lens frames (13) continuously distributed around the plurality of inner lens frames (12). The Fresnel lens (2) is adapted to the central lens frame (11), the inner lens frames (12), and the outer lens frames (13) to form a central lens (21), a plurality of inner lens frames (22), and a plurality of outer lens frames, respectively. (23) A central lens frame (11) forms a central lens mounting groove (111) for mounting the central lens (21) on the inner side of the top. Multiple inner lens frames (12) form inner lens mounting grooves (121) for mounting the inner lens (22) on the inner side of the top. Multiple outer lens frames (13) form outer lens mounting grooves (131) for mounting the outer lens (23) on the inner side of the top. The lens fixing piece (3) is set above the Fresnel lens (2) and fixed to the lens mounting bracket (1) by screws (4), thereby fixing the Fresnel lens (2).

2. The mounting structure of a Fresnel lens for a searchlight according to claim 1, characterized in that: The depths of the central lens mounting groove (111), inner lens mounting groove (121), and outer lens mounting groove (131) are the same, and the thicknesses are the same as those of the central lens (21), multiple inner lenses (22), and multiple outer lenses (23).

3. The mounting structure of a Fresnel lens for a searchlight according to claim 1, characterized in that: The central lens frame (11) and the central lens (21) are circular, and the inner lens frame (12), the inner lens (22), the outer lens frame (13), and the outer lens (23) are all fan-shaped.

4. The mounting structure of a Fresnel lens for a searchlight according to claim 1, characterized in that: The lens fixing piece (3) includes a central pressure frame (31), an inner arc-edge pressure frame (32) located around the central pressure frame (31), and an outer arc-edge pressure frame (33) located around the inner arc-edge pressure frame (32). Multiple inner side pressure frames (34) connect the central pressure frame (31) and the inner arc-edge pressure frame (32). Multiple outer side pressure frames (35) connect the inner arc-edge pressure frame (32) and the outer arc-edge pressure frame (33). The central pressure frame (31) is pressed onto the central lens. (21) The outer edge of the inner ring lens (22) and the inner arc edge of each inner ring lens (22) are pressed on the outer arc edge of each inner ring lens (22) and the inner arc edge of each outer ring lens (23). The outer arc edge pressing frame (33) is pressed on the outer arc edge of each outer ring lens (23). The inner side pressing frame (34) is pressed on the side of two adjacent inner ring lenses (22). The outer side pressing frame (35) is pressed on the side of two adjacent outer ring lenses (23).

5. The mounting structure of a Fresnel lens for a searchlight according to claim 4, characterized in that: The screw (4) passes through the central pressure frame (31), the inner arc edge pressure frame (32), the outer arc edge pressure frame (33), the inner side pressure frame (34), and the outer side pressure frame (35) in sequence and is fastened to the lens mounting bracket (1).

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