Shading device and optical lens
By designing a light-shielding device for the second fastener and the first fastener that can switch the locking state, the light leakage problem of large gaps between the mesh layer and the lamp in the spotlight is solved, and better light efficiency and equipment performance are achieved.
Patent Information
- Application Number
- CN202421806614.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In lighting equipment such as spotlights, large gaps are easily generated between the mesh layer and the lamp, resulting in light leakage and poor environmental lighting effects.
A light-shielding device is designed, including a door frame, a first fastener and a second fastener. The second fastener can be switched between a locking and unlocking state, and the mesh layer is limited to the door frame through the first fastener and a second fastener in the locking state, reducing gaps and light leakage.
It effectively reduces the gap between the mesh layer and the door frame, reduces the situation of light leakage and dust entering, and improves the light efficiency and overall performance of the equipment.
Smart Images
Figure CN222978005U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of lighting, and particularly relates to a light-shielding device and an optical lens. Background Art
[0002] In lighting devices such as spotlights, a mesh layer can be provided on the light-emitting side of the lamp to form a specific output light effect. For example, a light-reducing yarn is provided on the light-emitting side of the lamp to reduce the intensity of the output light. In the related art, the mesh layer is snap-fastened to a predetermined position of the lamp, and a relatively large gap is likely to be generated between the mesh layer and the lamp. The existence of the gap will cause light leakage, which has an adverse effect on the lighting of other lamps and the environment. Summary of the Utility Model
[0003] The purpose of the embodiments of this application is to provide a light-shielding device and an optical lens to solve the technical problem that a relatively large gap is likely to be generated between the mesh layer and the lamp in the related art, resulting in light leakage.
[0004] The embodiments of this application provide a light-shielding device, including: a shutter frame, a first fastener, and a second fastener; the shutter frame has a receiving cavity for receiving a mesh layer; the first fastener is provided on the shutter frame; the second fastener is provided on the shutter frame, the second fastener and the first fastener are located at different positions on the shutter frame, the second fastener is a second fastener, and the second fastener can be switched between a locked state and an unlocked state; when the second fastener is in the locked state, the second fastener and the first fastener can limit the mesh layer within the shutter frame; when the second fastener is in the unlocked state, the mesh layer located within the shutter frame can be separated from the shutter frame.
[0005] In an optional implementation, the shutter frame includes a frame portion and a positioning portion, and the positioning portion is connected to the inner wall of the frame portion; in the height direction of the shutter frame, the first fastener and the positioning portion are spaced apart, and the mesh layer can be limited between the first fastener and the positioning portion.
[0006] In an optional implementation, the second fastener includes a fastener, an operating member, and an elastic member; the fastener is slidably mounted on the shutter frame along a predetermined direction; the fastener is fixed to one end of the operating member, and the other end of the operating member is located outside the shutter frame; the elastic member is arranged along the sliding direction of the fastener, and both ends of the elastic member are respectively abutted against the wall surface of the shutter frame and the fastener; the elastic member is used to push the fastener so that the mesh layer can be limited between the fastener and the positioning portion.
[0007] In an alternative implementation, the fastener includes a first section and a second section connected to each other; in the height direction of the shutter frame, the first section and the positioning portion are spaced apart; the second section is fixed to the operating member, one end of the elastic member abuts against the second section, and the second section is in sliding fit with the shutter frame; when the second fastener is in the locked state, the first section and the positioning portion face each other in the height direction of the shutter frame; when the second fastener is in the unlocked state, the first section and the positioning portion are offset from each other in the height direction of the shutter frame.
[0008] In an alternative implementation, the elastic member is a spring, and the spring is sleeved outside the operating member.
[0009] In an alternative implementation, the second fastener includes a fastener and an operating member; the fastener is slidably mounted on the shutter frame along a predetermined direction; the fastener is fixed to one end of the operating member, and the other end of the operating member is located outside the shutter frame; the positioning portion has a mating hole, and the fastener is detachably connected to the mating hole; when the fastener is tightly connected to the mating hole, the mesh layer can be limited between the fastener and the positioning portion.
[0010] In an alternative implementation, the fastener includes a first section, a second section, and a third section connected in sequence, and the first section and the third section are spaced apart; in the height direction of the shutter frame, the first section and the positioning portion are spaced apart; the second section is fixed to the operating member, and the second section is in sliding fit with the shutter frame; when the second fastener is in the locked state, the first section and the positioning portion face each other in the height direction of the shutter frame, and the third section is tightly connected to the mating hole; when the second fastener is in the unlocked state, the first section and the positioning portion are offset from each other in the height direction of the shutter frame, and the third section is separated from the mating hole.
[0011] In an alternative implementation, the operating member includes a rod portion and a head, the head is connected to one end of the rod portion, the fastener is connected to the other end of the rod portion, the head is located outside the shutter frame, and the rod portion passes through the shutter frame.
[0012] In an alternative implementation, the sliding direction of the fastener is perpendicular to the height direction of the shutter frame.
[0013] In an alternative implementation, the positioning portion extends annularly;
[0014] Or, the positioning portion includes a plurality of positioning segments distributed annularly.
[0015] In an alternative implementation, it further includes a plurality of hinge seats. Each hinge seat includes a first hinge and a second hinge that are hinged to each other. The first hinge is fixed on the shutter frame, and the second hinge is used to fix the light-shielding plate. In the height direction of the shutter frame, the first hinge in one of the hinge seats partially covers the second fastener.
[0016] In an alternative implementation, it further includes a mesh layer and a plurality of light-shielding plates. The mesh layer is detachably installed inside the shutter frame, and the plurality of light-shielding plates are hinged to the shutter frame.
[0017] In an alternative implementation, the first fastener is a fixed fastener or a movable fastener.
[0018] The beneficial effects of the light-shielding device provided by the embodiments of the present application are as follows: The shutter frame has a receiving cavity for placing the mesh layer. There are a first fastener and a second fastener on the shutter frame. The second fastener is a movable fastener and can be switched between a locked state and an unlocked state. When assembling the mesh layer, the second fastener is switched to the unlocked state, and the mesh layer can be arranged in the receiving cavity of the shutter frame; then the second fastener is switched to the locked state, and the mesh layer is limited inside the shutter frame by the first fastener and the second fastener in the locked state. The situation of light leakage and dust entry through the gap between the mesh layer and the shutter frame is less or non-existent. When disassembling the mesh layer, the second fastener is switched to the unlocked state, and the mesh layer inside the shutter frame can be detached from the shutter frame. The mesh layer is detachably installed on the shutter frame, and the installation and disassembly operations are convenient, which is convenient for replacing different types of mesh layers.
[0019] The embodiments of the present application provide an optical lens, which includes a Fresnel lens and the above-mentioned light-shielding device, and the light-shielding device is arranged on the light-emitting side of the Fresnel lens.
[0020] The beneficial effects of the light-shielding device provided by the embodiments of the present application are as follows: The Fresnel lens has a similar function to a lens, which can converge the light emitted by the light source, improve the light-concentrating efficiency, and generate a relatively large light intensity. The light passing through the Fresnel lens is projected outward through the light-shielding device. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0022] Figure 1 It is a three-dimensional structure diagram of the mesh layer in the related art;
[0023] Figure 2Stereo exploded view of the light-shielding device provided by the first embodiment of the present application;
[0024] Figure 3 It is Figure 2 Assembly schematic diagram of the partial structure of the light-shielding device;
[0025] Figure 4 It is Figure 3 Assembly schematic diagram of the light-shielding device with a mesh layer installed;
[0026] Figure 5 Schematic diagram of the structure of the light-shielding device provided by the first embodiment of the present application when the second fastener is in the locked state;
[0027] Figure 6 It is Figure 5 Schematic diagram of the structure of the light-shielding device with a mesh layer installed when the second fastener is in the locked state;
[0028] Figure 7 It is Figure 5 Schematic diagram of the structure of the light-shielding device with a mesh layer installed when the second fastener is in the unlocked state;
[0029] Figure 8 It is Figure 2 Stereo assembly drawing of the second fastener in the light-shielding device;
[0030] Figure 9 Stereo exploded view of the second fastener in the light-shielding device provided by the second embodiment of the present application;
[0031] Figure 10 Schematic diagram of the structure of the light-shielding device provided by the second embodiment of the present application when the second fastener is in the locked state;
[0032] Figure 11 It is Figure 10 Schematic diagram of the structure of the light-shielding device with a mesh layer installed when the second fastener is in the locked state;
[0033] Figure 12 It is Figure 10 Schematic diagram of the structure of the light-shielding device with a mesh layer installed when the second fastener is in the unlocked state;
[0034] Figure 13 It is Figure 2 Stereo assembly drawing of the light-shielding device;
[0035] Figure 14 It is Figure 13 Schematic diagram of the structure of the light-shielding device with a mesh layer installed;
[0036] Figure 15 Stereo exploded view of the light-shielding device provided by the embodiment of the present application;
[0037] Figure 16 is Figure 15 a three-dimensional assembly drawing of the light-shielding device;
[0038] Figure 17 is Figure 16 another perspective three-dimensional assembly drawing of the light-shielding device. Specific embodiments
[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0040] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application.
[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.
[0042] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.
[0043] Please refer to Figure 1, embodiments of the present application provide a light-shielding device for installing a mesh layer 200. The mesh layer 200 can be a light-reducing yarn, also known as a leno cloth. When the light-reducing yarn is disposed on the light-emitting side of the lamp, after the light passes through the light-reducing yarn, the intensity of the output light can be reduced. Alternatively, the mesh layer 200 can also be a honeycomb cover. When the honeycomb cover is disposed on the light-emitting side of the lamp, the light can be neatly emitted after entering from one side of the honeycomb cover, making the output light directional. The mesh layer 200 has holes for the light to pass through.
[0044] When the mesh layer 200 is a light-reducing yarn, the light-reducing yarn can include a mesh portion 201 and a frame 202. The mesh portion 201 can be woven from multiple metal or other material wires, and the mesh portion 201 can be disposed within the frame 202. The frame 202 can be circular, rectangular, or other shapes. The mesh holes of the mesh portion 201 can be rectangular or other shapes. When in use, a light-reducing yarn with a suitable mesh hole size can be selected as needed. The mesh portion 201 of the light-reducing yarn can be in the form of a full grid, a 1 / 2 grid, a 1 / 4 grid, etc. Among them, a 1 / 2 grid means that the mesh portion 201 is provided in half of the area of the frame 202, and the other half area has no mesh portion 201. A 1 / 4 grid means that the mesh portion 201 is provided in 1 / 4 of the area of the frame 202, and the remaining 3 / 4 area has no mesh portion 201. Non-full grids such as 1 / 2 grids and 1 / 4 grids can be applied to situations where different light intensities are required in different regions.
[0045] When the mesh layer 200 is a honeycomb cover, refer to Figure 1 , the honeycomb cover can include a mesh portion 201 and a frame 202. The mesh portion 201 has honeycomb-shaped mesh holes, and the mesh portion 201 can be disposed within the frame 202. Generally, the depth of the mesh holes of the honeycomb cover is greater than the depth of the mesh holes of the light-reducing yarn. The frame 202 can be circular, rectangular, or other shapes. When in use, a honeycomb cover with a suitable mesh hole size can be selected as needed. The mesh portion 201 of the honeycomb cover can be in the form of a full grid.
[0046] Please refer to Figures 2 to 4 , the light-shielding device 1000 provided by the embodiments of the present application includes a shutter frame 10, a first fastener 20, and a second fastener 30. The shutter frame 10 has a receiving cavity 11 for receiving the mesh layer 200. The first fastener 20 is disposed on the shutter frame 10. The second fastener 30 is disposed on the shutter frame 10. The second fastener 30 and the first fastener 20 are located at different positions on the shutter frame 10. The second fastener 30 is a movable buckle, and the second fastener 30 can switch between a locked state and an unlocked state. When the second fastener 30 is in the locked state, the second fastener 30 and the first fastener 20 can limit the mesh layer 200 within the shutter frame 10. When the second fastener 30 is in the unlocked state, the mesh layer 200 located within the shutter frame 10 can be separated from the shutter frame 10.
[0047] The light-shielding device 1000 provided by the embodiment of the present application has a receiving cavity 11 in the shutter frame 10 capable of placing the mesh layer 200. The shutter frame 10 is provided with a first fastener 20 and a second fastener 30, and the second fastener 30 can be switched between a locked state and an unlocked state. When assembling the mesh layer 200, the second fastener 30 is switched to the unlocked state, and the mesh layer 200 can be arranged in the receiving cavity 11 of the shutter frame 10; then the second fastener 30 is switched to the locked state, and the mesh layer 200 is limited in the shutter frame 10 by the first fastener 20 and the second fastener 30 in the locked state. The situation of light leakage and dust ingress through the gap between the mesh layer 200 and the shutter frame 10 is less or non-existent. When disassembling the mesh layer 200, the second fastener 30 is switched to the unlocked state, and the mesh layer 200 in the shutter frame 10 can be detached from the shutter frame 10. The mesh layer 200 is detachably installed on the shutter frame 10, and the installation and disassembly operations are convenient, facilitating the replacement of different types of mesh layers 200.
[0048] When setting the shutter frame 10, refer to Figures 2 to 4 , the shutter frame 10 can be in shapes such as circular, rectangular, etc. The mesh layer 200 has a shape adapted to the shutter frame 10, so that the mesh layer 200 can be arranged in the shutter frame 10. For example, the shutter frame 10 is generally circular, the mesh layer 200 is circular, and the mesh layer 200 can be accommodated in the shutter frame 10.
[0049] When setting the first fastener 20, refer to Figures 2 to 4 , the first fastener 20 can be a fixed fastener or a movable fastener. The fixed fastener can be arranged on the inner wall of the shutter frame 10. The fixed fastener can be in the shape of a sheet or other shapes. One or more fixed fasteners can be provided.
[0050] Exemplarily, the first fastener 20 is a fixed fastener, the second fastener 30 is a movable fastener, and the number of both the fixed fastener and the movable fastener is one. The fixed fastener and the movable fastener are arranged at opposite positions on the shutter frame 10, and the fixed fastener and the movable fastener can also be not arranged oppositely.
[0051] Exemplarily, the first fastener 20 is a fixed fastener, the second fastener 30 is a movable fastener, the number of the fixed fasteners is multiple, the number of the movable fastener is one, and the multiple fixed fasteners and the one movable fastener are arranged at different positions on the shutter frame 10.
[0052] Exemplarily, both the first fastener 20 and the second fastener 30 are movable fasteners, the number of both the first fastener 20 and the second fastener 30 is at least one, and the first fastener 20 and the second fastener 30 are arranged at different positions on the shutter frame 10.
[0053] In order to facilitate positioning the mesh layer 200 on the shutter frame 10, in some embodiments, refer to Figure 2 , Figure 5 , Figure 6, the shutter frame 10 includes a frame portion 12 and a positioning portion 13, and the positioning portion 13 is connected to the inner wall of the frame portion 12. In the height direction 10a of the shutter frame 10, the first fastener 20 and the positioning portion 13 are spaced apart, and the mesh layer 200 can be limited between the first fastener 20 and the positioning portion 13.
[0054] Wherein, the height direction 10a of the shutter frame 10 is the vertical direction of the plane where the shutter frame 10 is located.
[0055] The mesh layer 200 is arranged in the frame portion 12. The thickness of the mesh layer 200 can be less than the height of the frame portion 12, and the situation of light leakage and dust entry through the gap between the mesh layer 200 and the frame portion 12 is small or non-existent. Combining Figure 6 , the positioning portion 13 limits one side of the mesh layer 200, and the first fastener 20 limits the other side of the mesh layer 200, so that the position of the mesh layer 200 corresponding to the first fastener 20 is limited within the frame portion 12. The first fastener 20 is combined with the second fastener 30, and the second fastener 30 can be switched between a locked state and an unlocked state, so that the mesh layer 200 can be detachably installed on the shutter frame 10.
[0056] There are various optional implementation methods for setting the second fastener 30. Two implementation methods of the second fastener 30 are exemplarily given below.
[0057] The first implementation method of the second fastener 30: Please refer to Figure 2 , Figure 3 , Figure 8 , the second fastener 30 includes a fastener 31, an operating member 32 and an elastic member 33. The fastener 31 is slidably mounted on the shutter frame 10 along a predetermined direction. The fastener 31 is fixed to one end 32a of the operating member 32, and the other end 32b of the operating member 32 is located outside the shutter frame 10. Combining Figure 5 , the elastic member 33 is arranged along the sliding direction 31a of the fastener 31, and both ends of the elastic member 33 are respectively abutted against the wall surface of the shutter frame 10 and the fastener 31. The elastic member 33 is used to push the fastener 31 so that the mesh layer 200 can be limited between the fastener 31 and the positioning portion 13.
[0058] The second fastener 30 having the fastener 31, the operating member 32 and the elastic member 33 has a simple structure and is easy to assemble and operate. By adjusting the position of the operating member 32 to adjust the position of the fastener 31, the second fastener 30 is switched between the unlocked state and the locked state. Refer to Figure 5 , under the action of the elastic member 33, the fastener 31 remains in a position close to the positioning portion 13, and the second fastener 30 is in a locked state.
[0059] When it is necessary to switch to the unlocked state, refer to Figure 5 , pull the end of the operating member 32 located outside the shutter frame 10 outwards ( Figure 5Pull one end 32b) of the operating member 32 to the left, so that the fastener 31 moves away from the positioning portion 13, and the elastic member 33 is compressed to store energy during this process. Combine Figure 7 , the second fastener 30 switches to the unlocked state, and the mesh layer 200 can be snapped into the positioning portion 13 and between the first fastener 20, and the mesh layer 200 is supported on the positioning portion 13, or the mesh layer 200 located within the frame portion 12 can be disengaged from the frame portion 12.
[0060] When it is necessary to switch to the locked state, refer to Figure 7 , the operating member 32 can be released, the elastic member 33 extends to release energy, and under the action of the elastic member 33, the fastener 31 moves towards the positioning portion 13 ( Figure 7 the fastener 31 moves to the right in ), and the operating member 32 moves following the fastener 31. Combine Figure 6 , in the case where the mesh layer 200 is provided within the frame portion 12, the fastener 31 and the positioning portion 13 face the two sides of the mesh layer 200 respectively, and the mesh layer 200 is confined between the fastener 31 and the positioning portion 13.
[0061] When setting the fastener 31, please refer to Figure 5 、 Figure 8 , the fastener 31 includes a first section 311 and a second section 312 which are connected. In the height direction 10a of the shutter frame 10, the first section 311 and the positioning portion 13 are spaced apart. The second section 312 is fixed to the operating member 32, and one end of the elastic member 33 abuts against the second section 312, and the second section 312 is in sliding fit with the shutter frame 10. Combine Figure 5 、 Figure 6 , when the second fastener 30 is in the locked state, the first section 311 and the positioning portion 13 face each other in the height direction 10a of the shutter frame 10. Combine Figure 7 , when the second fastener 30 is in the unlocked state, the first section 311 and the positioning portion 13 are offset from each other in the height direction 10a of the shutter frame 10.
[0062] Adopting the fastener 31 with the first section 311 and the second section 312 facilitates the assembly of the fastener 31, the operating member 32 and the elastic member 33. By adjusting the position of the operating member 32, the position of the fastener 31 relative to the positioning portion 13 can be adjusted to realize the switching of the second fastener 30 between the locked state and the unlocked state.
[0063] Combine Figure 5 、 Figure 6 , so that the first section 311 and the positioning portion 13 face each other. In the case where the mesh layer 200 is installed within the frame portion 12, the first section 311 and the positioning portion 13 are respectively arranged opposite to the two sides of the mesh layer 200, and the mesh layer 200 is confined within the frame portion 12.
[0064] Combine Figure 7, so that the first section 311 and the positioning portion 13 are staggered, the mesh layer 200 can be separated from the frame portion 12 when the mesh layer 200 is installed in the frame portion 12, and the mesh layer 200 can be placed in the frame portion 12 when the mesh layer 200 is not installed in the frame portion 12.
[0065] For example, see Figure 8 The first section 311 and the second section 312 of the fastener 31 can be arranged roughly in an L-shape, and this structure is easy to form.
[0066] When setting the elastic member 33, please refer to 8. The elastic member 33 can be a spring, and the spring is sleeved outside the operating member 32. The spring is easy to assemble. Figure 5 During the movement of the operating member 32 and the fastener 31 , the spring remains on the operating member 32 and does not deviate from the predetermined position, thereby improving the movement reliability of the second fastener 30 .
[0067] Second implementation method of the second fastener 30: Please refer to Figure 9 , Figure 10 The second fastener 30 includes a fastener 31 and an operating member 32. The fastener 31 is slidably mounted on the door frame 10 along a predetermined direction. The fastener 31 is fixed to one end 32a of the operating member 32, and the other end 32b of the operating member 32 is located outside the door frame 10. The positioning portion 13 has a matching hole 131, and the fastener 31 is detachably connected to the matching hole 131. When the fastener 31 is tightly connected to the matching hole 131, the mesh layer 200 can be limited between the fastener 31 and the positioning portion 13.
[0068] The second fastener 30 having a fastener 31 and an operating member 32 has a simple structure and is easy to assemble and operate. The position of the fastener 31 is adjusted by adjusting the position of the operating member 32 to achieve the switching of the second fastener 30 between the unlocked state and the locked state. Figure 10 The fastener 31 is tightly connected to the matching hole 131, the fastener 31 is kept at a position close to the positioning portion 13, and the second fastener 30 is in a locked state.
[0069] When you need to switch to unlocked state, refer to Figure 11 , pull outward the end of the operating member 32 located outside the door frame 10 ( Figure 11 Pull one end 32b of the operating member 32 to the left to move the fastener 31 away from the positioning portion 13, so that the fastener 31 is disengaged from the matching hole 131. Figure 12 , the second fastener 30 is switched to the unlocked state, the mesh layer 200 can be inserted between the positioning portion 13 and the first fastener 20 and the mesh layer 200 can be supported on the positioning portion 13, or the mesh layer 200 located in the frame portion 12 can be detached from the frame portion 12.
[0070] When you need to switch to the locked state, refer to Figure 12, the position of the adjustable operating member 32 can be adjusted to move the fastener 31 towards the positioning portion 13 ( Figure 12 in the figure, the fastener 31 moves to the right), so that the fastener 31 is tightly fitted and connected to the mating hole 131. Combining Figure 11 , when the mesh layer 200 is provided on the frame portion 12, partial regions of the fastener 31 and the positioning portion 13 face opposite sides of the mesh layer 200 respectively, and the mesh layer 200 is defined between the fastener 31 and the positioning portion 13.
[0071] When setting the fastener 31, please refer to Figure 9 , Figure 10 , the fastener 31 includes a first section 311, a second section 312 and a third section 313 that are connected in sequence, and the first section 311 and the third section 313 are spaced apart. In the height direction 10a of the shutter frame 10, the first section 311 and the positioning portion 13 are spaced apart. The second section 312 is fixed to the operating member 32, and the second section 312 is slidably engaged with the shutter frame 10. Combining Figure 11 , when the second fastener 30 is in the locked state, in the height direction 10a of the shutter frame 10, the first section 311 and the positioning portion 13 face each other, and the third section 313 is tightly fitted and connected to the mating hole 131. Combining Figure 12 , when the second fastener 30 is in the unlocked state, in the height direction 10a of the shutter frame 10, the first section 311 and the positioning portion 13 are staggered, and the third section 313 is separated from the mating hole 131.
[0072] Adopting the fastener 31 having the first section 311, the second section 312 and the third section 313 facilitates the assembly of the fastener 31, the operating member 32 and the elastic member 33. By adjusting the position of the operating member 32, the position of the fastener 31 relative to the positioning portion 13 can be adjusted to realize the switching of the second fastener 30 between the locked state and the unlocked state.
[0073] Combining Figure 11 , making the first section 311 and the positioning portion 13 face each other, and the third section 313 is tightly fitted and connected to the mating hole 131. When the mesh layer 200 is installed in the frame portion 12, the first section 311 and the positioning portion 13 are respectively arranged opposite to both sides of the mesh layer 200, and the mesh layer 200 is defined within the frame portion 12.
[0074] Combining Figure 12 , making the first section 311 and the positioning portion 13 staggered, and the third section 313 separated from the mating hole 131. When the mesh layer 200 is installed in the frame portion 12, the mesh layer 200 can be detached from the frame portion 12, and when the mesh layer 200 is not installed in the frame portion 12, the mesh layer 200 can be placed into the frame portion 12.
[0075] Exemplarily, refer to Figure 9, the first section 311, the second section 312, and the third section 313 of the fastener 31 can be arranged in a substantially U shape, and this structure is easy to form.
[0076] For the above two implementation manners of the fastener 31, when setting the operating member 32, in some embodiments, please refer to Figure 8 , Figure 9 , the operating member 32 may include a rod portion 321 and a head portion 322. The head portion 322 is connected to one end of the rod portion 321, and the fastener 31 is connected to the other end of the rod portion 321. Combining Figure 5 , Figure 10 , the head portion 322 is located outside the shutter frame 10, and the rod portion 321 passes through the shutter frame 10.
[0077] The operating member 32 having the rod portion 321 and the head portion 322 is easy to assemble and operate. The fastener 31 is connected to the rod portion 321. The head portion 322 is located outside the shutter frame 10, and the rod portion 321 passes through the through hole 121 of the shutter frame 10. By operating the position of the head portion 322, the positions of the rod portion 321 and the fastener 31 can be adjusted to realize the switching between the locked state and the unlocked state of the second fastener 30.
[0078] Exemplarily, the operating member 32 can be a hand-tightening screw, which is convenient for pushing and pulling the operating member 32 to adjust the position of the fastener 31, and a threaded connection can be adopted between the hand-tightening screw and the fastener 31.
[0079] When setting the operating member 32, in other embodiments, the operating member 32 may include a rod portion 321, and the head portion 322 is not provided. The rod portion 321 passes through the shutter frame 10. One end of the rod portion 321 is located outside the shutter frame 10, and the fastener 31 is connected to the other end of the rod portion 321. By adjusting the position of the rod portion 321, the position of the fastener 31 can also be adjusted to realize the switching between the locked state and the unlocked state of the second fastener 30.
[0080] For the above two implementation manners of the fastener 31, when setting the sliding direction 31a of the fastener 31, please refer to Figure 5 , Figure 10 , the sliding direction 31a of the fastener 31 is perpendicular to the height direction 10a of the shutter frame 10. The operating member 32 and the fastener 31 are fixedly connected. By adjusting the position of the operating member 32 in the direction perpendicular to the height direction 10a of the shutter frame 10, the position of the fastener 31 relative to the positioning portion 13 can be adjusted to realize the switching between the locked state and the unlocked state, and it is easy to adjust the positions of the operating member 32 and the fastener 31.
[0081] When setting the shape of the positioning portion 13, there are two alternative implementation manners.
[0082] The first implementation manner of the positioning portion 13: Please refer to Figure 2, the positioning portion 13 can extend annularly. The annulus can be in the shape of a circle, a rectangle, etc. The shape of the positioning portion 13 is adapted to the shape of the frame portion 12. For example, if the frame portion 12 is circular, the positioning portion 13 is circular. The annularly extending positioning portion 13 can limit one side of the mesh layer 200. In combination with the first fastener 20 and the second fastener 30, the mesh layer 200 can be limited within the frame portion 12. The longitudinal cross-section of the positioning portion 13 can be in the shape of an L or a rectangle, etc.
[0083] Exemplarily, the longitudinal cross-section of the positioning portion 13 is in the shape of an L and is parallel to the height direction 10a of the shutter frame 10. The material used for the positioning portion 13 is relatively small and the structural weight is relatively light. The positioning portion 13 includes a first part 132 and a second part 133 connected to each other. The first part 132 is connected to the inner wall of the frame portion 12, and the second part 133 is spaced apart from the frame portion 12. The second part 133 and the frame portion 12 can be connected by a plurality of connecting ribs 134, which can improve the structural strength of the shutter frame 10.
[0084] The second implementation manner of the positioning portion 13: The positioning portion 13 includes a plurality of positioning segments distributed annularly. The annular distribution can be in the shape of a circle, a rectangle, etc. The distribution shape of the plurality of positioning segments is adapted to the shape of the frame portion 12. For example, if the frame portion 12 is circular, each positioning segment is arc-shaped. The plurality of annularly distributed positioning segments can limit one side of the mesh layer 200. In combination with the first fastener 20 and the second fastener 30, the mesh layer 200 can be limited within the frame portion 12. The longitudinal cross-section of the positioning portion 13 can be in the shape of an L or a rectangle, etc.
[0085] In some embodiments, please refer to Figure 3 、 Figures 13 to 15 , it further includes a plurality of hinge seats 40. The hinge seat 40 includes a first hinge 41 and a second hinge 42 hinged to each other. The first hinge 41 is fixed on the shutter frame 10, and the second hinge 42 is used to fix the light-shielding plate 300. In the height direction 10a of the shutter frame 10, the first hinge 41 in one of the hinge seats 40 partially covers the second fastener 30.
[0086] The hinge seat 40 having the first hinge 41 and the second hinge 42 can hinge the light-shielding plate 300 on the shutter frame 10 so that the angle of the light-shielding plate 300 relative to the shutter frame 10 is adjustable. The first hinge 41 of the hinge seat 40 partially covering the second fastener 30 means that the first hinge 41 covers the second fastener 30, and the inner surface of the first hinge 41 can serve as the guiding surface of the fastener 31 in the second fastener 30.
[0087] Both between the first hinge 41 and the shutter frame 10 and between the second hinge 42 and the light-shielding plate 300 can be connected by fasteners (such as screws).
[0088] In other embodiments, a plurality of hinge seats 40 are further included, and the hinge seats 40 include a first hinge 41 and a second hinge 42 that are hinged to each other, the first hinge 41 is fixed to the door frame 10, and the second hinge 42 is used to fix the sunshade 300. The hinge seats 40 and the second fasteners 30 are located at different positions of the door frame 10. On the vertical plane of the height direction 10a of the door frame 10, the hinge seats 40 and the second fasteners 30 are staggered at a predetermined angle.
[0089] In order to facilitate the installation of the door frame 10 at a predetermined position, in some embodiments, refer to Figure 5 , Figure 17 The door frame 10 has a plurality of buckles 14, which can be snapped onto a predetermined position of the lamp. The door frame 10 can also be connected to the predetermined position by fasteners or other mechanical means.
[0090] In some embodiments, see Figures 15 to 17 , further comprising a mesh layer 200 , which is detachably installed in the door frame 10 .
[0091] In some embodiments, see Figures 15 to 17 , further comprising a plurality of shading plates 300, wherein the plurality of shading plates 300 are hingedly connected to the door frame 10. The size and shape of the light emitting area can be adjusted by adjusting the angle of the shading plates 300.
[0092] Exemplarily, four shading plates 300 are disposed on the door frame 10 , and the size and shape of the light emitting area can be adjusted by adjusting the angles of the four shading plates 300 relative to the door frame 10 .
[0093] See also Figure 16 , Figure 17 An embodiment of the present application provides an optical lens, including a Fresnel lens and the above-mentioned shading device 1000, and the shading device 1000 is arranged on the light-emitting side of the Fresnel lens.
[0094] The optical lens provided in the embodiment of the present application has a Fresnel lens with a smooth surface on one side and multiple concentric circles on the other side. The Fresnel lens has a similar function to a lens, which can converge the light emitted by the light source, improve the focusing efficiency, and generate a greater light intensity. The light after passing through the Fresnel lens is projected outward through the shading device 1000. The Fresnel lens can be installed on the light-emitting side of the lamp by means of buckles, fasteners, etc.
[0095] See also Figure 16 , Figure 17, an embodiment of the present application provides a lighting device, including a lamp and the above-mentioned light-shielding device 1000, and the light-shielding device 1000 is arranged on the light-emitting side of the lamp. The Fresnel lens can be located between the light-emitting side of the lamp and the light-shielding device 1000. The light output by the lamp is projected outward after passing through the Fresnel lens and the light-shielding device 1000 in sequence. The light-shielding device 1000 can be installed on the light-emitting side of the lamp by means of buckles, fasteners, etc. The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A shading device, characterized in that: include: A door frame (10), a first fastener (20) and a second fastener (30); The door frame (10) has a receiving cavity (11) for receiving a mesh layer (200); The first fastener (20) is arranged on the door frame (10); The second fastener (30) is arranged on the door frame (10); the second fastener (30) and the first fastener (20) are located at different positions of the door frame (10); the second fastener (30) is a movable fastener; and the second fastener (30) can be switched between a locked state and an unlocked state; When the second fastener (30) is in the locked state, the second fastener (30) and the first fastener (20) can limit the mesh layer (200) within the door frame (10); When the second fastener (30) is in the unlocked state, the mesh layer (200) located in the door frame (10) can be separated from the door frame (10).
2. The shading device according to claim 1, characterized in that: The door frame (10) comprises a frame-shaped portion (12) and a positioning portion (13), wherein the positioning portion (13) is connected to the inner wall of the frame-shaped portion (12); In the height direction (10a) of the door frame (10), the first fastener (20) and the positioning portion (13) are arranged at intervals, and the mesh layer (200) can be located between the first fastener (20) and the positioning portion (13).
3. The shading device according to claim 2, characterized in that: The second fastener (30) comprises a fastener (31), an operating member (32) and an elastic member (33); the fastener (31) is slidably mounted on the door frame (10) along a predetermined direction; the fastener (31) is fixed to one end (32a) of the operating member (32), and the other end (32b) of the operating member (32) is located outside the door frame (10); The elastic member (33) is arranged along the sliding direction (31a) of the fastener (31), and the two ends of the elastic member (33) are respectively abutted against the wall surface of the door frame (10) and the fastener (31); the elastic member (33) is used to push the fastener (31) so that the mesh layer (200) can be limitedly located between the fastener (31) and the positioning portion (13).
4. The shading device according to claim 3, characterized in that: The fastener (31) comprises a first section (311) and a second section (312) connected to each other; in the height direction (10a) of the door frame (10), the first section (311) and the positioning portion (13) are arranged at intervals; the second section (312) is fixed to the operating member (32), one end of the elastic member (33) is abutted against the second section (312), and the second section (312) and the door frame (10) are slidably matched; When the second fastener (30) is in the locked state, the first section (311) and the positioning portion (13) face each other in the height direction (10a) of the door frame (10); When the second fastener (30) is in the unlocked state, the first section (311) and the positioning portion (13) are offset in the height direction (10a) of the door frame (10).
5. The shading device according to claim 3, characterized in that: The elastic member (33) is a spring, and the spring is sleeved outside the operating member (32).
6. The shading device according to claim 2, characterized in that: The second fastener (30) comprises a fastener (31) and an operating member (32); the fastener (31) is slidably mounted on the door frame (10) along a predetermined direction; the fastener (31) is fixed to one end (32a) of the operating member (32), and the other end (32b) of the operating member (32) is located outside the door frame (10); The positioning portion (13) has a matching hole (131), and the fastener (31) is detachably connected to the matching hole (131); When the fastener (31) is tightly fitted and connected to the fitting hole (131), the mesh layer (200) can be confined between the fastener (31) and the positioning portion (13).
7. The shading device according to claim 6, characterized in that: The fastener (31) comprises a first section (311), a second section (312) and a third section (313) which are connected in sequence, and the first section (311) and the third section (313) are arranged at intervals; in the height direction (10a) of the door frame (10), the first section (311) and the positioning portion (13) are arranged at intervals; the second section (312) is fixed to the operating member (32), and the second section (312) and the door frame (10) are slidably matched; When the second fastener (30) is in the locked state, the first section (311) and the positioning portion (13) face each other in the height direction (10a) of the door frame (10), and the third section (313) is tightly fitted and connected to the matching hole (131); When the second fastener (30) is in the unlocked state, the first section (311) and the positioning portion (13) are offset in the height direction (10a) of the door frame (10), and the third section (313) is separated from the matching hole (131).
8. The shading device according to any one of claims 3 to 7, characterized in that: The operating member (32) comprises a rod (321) and a head (322), wherein the head (322) is connected to one end of the rod (321), and the buckle (31) is connected to the other end of the rod (321), the head (322) is located outside the door frame (10), and the rod (321) is inserted into the door frame (10).
9. The shading device according to any one of claims 3 to 7, characterized in that: The sliding direction (31a) of the fastener (31) is perpendicular to the height direction (10a) of the door frame (10).
10. The shading device according to any one of claims 2 to 7, characterized in that: The positioning portion (13) extends in a ring shape; Alternatively, the positioning portion (13) comprises a plurality of positioning segments distributed in a ring shape.
11. The shading device according to any one of claims 1 to 7, characterized in that: It also comprises a plurality of hinged seats (40), wherein the hinged seats (40) comprise a first hinge (41) and a second hinge (42) which are hinged to each other, wherein the first hinge (41) is fixed to the door frame (10), and the second hinge (42) is used to fix the sunshade (300); In the height direction (10a) of the door frame (10), the first hinge (41) in one of the hinge seats (40) partially covers the second fastener (30).
12. The shading device according to any one of claims 1 to 7, characterized in that: It also comprises a mesh layer (200) and a plurality of shading plates (300), wherein the mesh layer (200) is detachably installed in the door frame (10), and the plurality of shading plates (300) are hinged to the door frame (10).
13. The shading device according to any one of claims 1 to 7, characterized in that: The first buckle (20) is a fixed buckle or a movable buckle.
14. An optical lens, characterized in that: It comprises a Fresnel lens and a shading device (1000) as claimed in any one of claims 1 to 13, wherein the shading device (1000) is arranged on the light-emitting side of the Fresnel lens.