Laminated glass with adjustable light transmittance
By designing laminated glass with adjustable light transmittance, and using an adjustment mechanism and a winding roller for the light-blocking film to adjust the light-blocking film, the problem of fixed light transmittance in traditional Low-E coated glass is solved, improving the flexibility of indoor light adjustment and living comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HANYANG GLASS TECHNOLOGY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional Low-E coated glass has a fixed light transmittance and cannot be adjusted according to changes in the outdoor environment, affecting indoor light and comfort, especially in hot summers and cold winters when it cannot meet indoor lighting needs.
An adjustable light transmittance laminated glass was designed. The light-blocking film is rolled up and unrolled through an adjustment mechanism to adjust the light transmittance between the glass panes. This mechanism includes the cooperation of a rotating rod, a winding roller, and a connecting rope. A ratchet and pawl are used to prevent rotation, thereby achieving stable adjustment of the light-blocking film.
It enables automatic or manual adjustment of indoor light based on external lighting conditions, improving the comfort of living and working environments, simplifying operation, and enhancing the flexibility and adaptability of light transmittance.
Smart Images

Figure CN224260176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building door and window technology, and in particular to a laminated glass with adjustable light transmittance. Background Technology
[0002] Windows, as an integral part of architecture, have always been a focus of architects' attention. With the implementation of national energy conservation and emission reduction policies, coated glass, especially Low-E energy-saving glass, has entered countless homes, becoming the best-selling product in the architectural glass industry. However, traditional Low-E coated glass only has one state and cannot adapt to changes in the outdoor environment. For example, in southern my country, where summers are hot, many buildings use sun-shading Low-E windows, with a transmittance of approximately 10% to 40%. In the dim mornings and evenings, the sun-shading windows significantly reduce indoor light compared to the outdoors, greatly affecting indoor lighting and increasing lighting costs. More importantly, in the cold winter, sun-shading windows prevent sunlight from entering the room, resulting in lower indoor temperatures and a colder feeling indoors.
[0003] Generally speaking, laminated glass has a relatively simple structure. Although it performs well in terms of safety and sound insulation, it is weak in terms of light transmittance adjustment. Especially in the hot summer, many users often have to rely on curtains to block the sun and reduce the invasion of ultraviolet rays. However, this often leads to dim indoor lighting, affecting the comfort and efficiency of living and working. Therefore, there is an urgent need for laminated glass with adjustable light transmittance to solve this problem. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a laminated glass with adjustable light transmittance.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A laminated glass with adjustable light transmittance includes an outer frame, inside which are two panes of glass. An adjustment mechanism for adjusting the light transmittance of the two panes is provided between them. The adjustment mechanism includes a second rotating rod rotatably connected to the top center of both ends of the inner wall of the outer frame. One end of a torsion spring is fixed to the outer wall of each end of the second rotating rod. The other ends of the two torsion springs are fixedly connected to the inner wall of a light-shielding film winding cylinder, which is rotatably connected to the outer wall of the second rotating rod. One end of a light-shielding film is wound onto the outer wall of the light-shielding film winding cylinder, and a connecting block is fixed to the other end of the light-shielding film. The same first rotating rod is rotatably connected to both ends of the bottom of the inner wall of the outer frame. Winding rollers are fixed to the outer walls of both ends of the first rotating rod, and one end of a connecting rope is wound onto the outer walls of both winding rollers. The other ends of the two connecting ropes are fixedly connected to the bottom of the connecting block. The light transmittance of the light-shielding film can be adjusted.
[0007] Preferably, the inner wall of the outer frame is provided with grooves at both ends, and sliders are slidably provided inside the two grooves. The two sliders are fixedly connected to the two ends of the connecting block, and the sliders can provide stability when the light-shielding film moves down.
[0008] Preferably, a turntable is fixed to one end of the first rotating rod.
[0009] Preferably, a ratchet is fixed to the outer wall of the first rotating rod near the turntable, and a pawl is rotatably connected to the bottom of the outer wall of the outer frame through a torsion spring. The pawl meshes with the ratchet, and the ratchet and pawl limit the first rotating rod to prevent it from rotating back, and the light-shielding film will be reset.
[0010] Preferably, a sealing plate is fixedly installed on the top of the outer frame by bolts, and a sealing gasket is installed on the bottom of the sealing plate.
[0011] Preferably, guide strips are fixed at the four corners of the inner wall of the outer frame, and the distance between the guide strips and the interior of the outer frame is adapted to the glass. The guide strips at both ends of the inner wall of the outer frame can conveniently limit the glass and facilitate its installation.
[0012] Preferably, a sealing ring is provided on the side of each of the two glass panes that is far from each other.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. Due to the adoption of an adjustment mechanism, rotating the turntable drives the first rotating rod to rotate, which in turn drives the winding rollers at both ends to rotate. The winding rollers wind up one end of the connecting rope and pull the connecting block down. The connecting block then moves one end of the light-blocking film down, adjusting the light transmittance between the two glass panes. This achieves the effect of quickly adjusting the light transmittance between the laminated glass panes. Furthermore, it can automatically or manually adjust the indoor light according to external lighting conditions, improving the comfort of the living or working environment. It is easy to operate and simple to use. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a laminated glass with adjustable light transmittance proposed in this utility model.
[0016] Figure 2 This is a schematic cross-sectional view of the outer frame of a laminated glass with adjustable light transmittance proposed in this utility model.
[0017] Figure 3 This is a partial structural diagram of a winding mechanism for laminated glass with adjustable light transmittance proposed in this utility model.
[0018] Figure 4 This is a schematic diagram of the second partial structure of a winding mechanism for laminated glass with adjustable light transmittance proposed in this utility model.
[0019] Figure 5 This is a schematic diagram of the top structure of the inner wall of the outer frame of a laminated glass with adjustable light transmittance proposed in this utility model.
[0020] In the diagram: 1. Outer frame; 101. Sealing ring; 102. Sealing plate; 103. Slide groove; 2. Turntable; 201. First rotating rod; 202. Take-up roller; 203. Connecting rope; 204. Ratchet; 205. Pawl; 3. Glass; 301. Guide strip; 4. Light-blocking film; 401. Connecting block; 402. Light-blocking film take-up drum; 403. Slider; 404. Second rotating rod; 405. Torsion spring. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-5 A type of laminated glass with adjustable light transmittance includes an outer frame 1, two glass panes 3 are disposed inside the outer frame 1, and an adjustment mechanism for adjusting the light transmittance of the two glass panes 3 is disposed between them.
[0023] The adjustment mechanism includes a second rotating rod 404 rotatably connected to the top center of both ends of the inner wall of the outer frame 1. One end of a torsion spring 405 is fixed to the outer wall of both ends of the second rotating rod 404. The other ends of the two torsion springs 405 are fixedly connected to the inner wall of the light-shielding film winding drum 402. The light-shielding film winding drum 402 is rotatably connected to the outer wall of the second rotating rod 404. One end of the light-shielding film 4 is wound on the outer wall of the light-shielding film winding drum 402. The other end of the light-shielding film 4 is fixed with a connecting block 401. The light-shielding film 4 can adjust the light intensity. The same first rotating rod 201 is rotatably connected to both ends of the bottom of the inner wall of the outer frame 1. The two ends of the first rotating rod 201 are fixed with winding rollers 202. One end of a connecting rope 203 is wound on the outer wall of the two winding rollers 202. The other ends of the two connecting ropes 203 are fixedly connected to the bottom of the connecting block 401.
[0024] In this utility model, both ends of the inner wall of the outer frame 1 are provided with sliding grooves 103, and sliders 403 are slidably provided inside the two sliding grooves 103. The two sliders 403 are respectively fixedly connected to the two ends of the connecting block 401. The sliders 403 can provide stability when the light-shielding film 4 moves down.
[0025] In this utility model, a turntable 2 is fixed to one end of the first rotating rod 201.
[0026] In this utility model, a ratchet 204 is fixed to the outer wall of the first rotating rod 201 near the turntable 2. A pawl 205 is rotatably connected to the bottom of the outer wall of the outer frame 1 through a torsion spring. The pawl 205 meshes with the ratchet 204. The ratchet 204 and the pawl 205 limit the first rotating rod 201 to prevent it from rotating back, and the light-shielding film 4 will be reset.
[0027] In this utility model, a sealing plate 102 is fixedly installed on the top of the outer frame 1 by bolts, and a sealing gasket is installed on the bottom of the sealing plate 102.
[0028] In this utility model, guide strips 301 are fixed at the four corners of the inner wall of the outer frame 1, and the distance between the guide strips 301 and the interior of the outer frame 1 is adapted to the glass 3. The guide strips 301 at both ends of the inner wall of the outer frame 1 can conveniently limit the glass 3 and install it.
[0029] In this invention, sealing rings 101 are provided on the sides of the two glass panes 3 that are far apart from each other.
[0030] Working principle: In use, firstly, the sealing plate 102 is disassembled with bolts. Then, the two glass pieces 3 are installed respectively through the guide strip 301. Next, the sealing ring 101 is installed on one side of the glass 3 to prevent moisture or water vapor from entering between the two glass pieces 3. Then, the sealing plate 102 is fixed with bolts to seal the top of the outer frame 1. When it is necessary to adjust the light intensity between the glass pieces 3, the turntable 2 is rotated. The turntable 2 will drive the first rotating rod 201 to rotate, and drive the winding roller 202 to rotate. The winding roller 202 will wind up the connecting rope 203. When the connecting rope 203 winds up, it will pull the connecting block 401 down. The connecting block 401 will drive the light-blocking film 4 down. When the connecting block 401 moves, it will drive the sliders 403 at both ends to slide inside the groove 103. When the light-shielding film 4 moves, the sliding groove 103 provides a certain stability. When the light-shielding film 4 moves downward, it will pull the light-shielding film winding drum 402 to rotate. At this time, the light transmittance can be adjusted according to the distance the light-shielding film 4 moves downward, thereby achieving the effect of adjusting the light transmittance between the two glass 3. When the first rotating rod 201 rotates, it will drive the ratchet 204 to rotate. At this time, the pawl 205 will engage with the ratchet 204 and prevent the light-shielding film 4 from moving unstablely due to the rotation of the first rotating rod 201. When it is necessary to reset the light-shielding film 4, the pawl 205 releases the limit on the ratchet 204, and then the torsion spring 405 will pull the light-shielding film winding drum 402 to reset, and at the same time, the light-shielding film 4 will be wound up on the outer wall of the light-shielding film winding drum 402, thereby quickly winding up the light-shielding film 4.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A laminated glass with adjustable light transmittance, comprising an outer frame (1), characterized in that, The outer frame (1) is provided with two glass (3) inside, and an adjustment mechanism for adjusting the light intensity of the two glass (3) is provided between them; The adjustment mechanism includes a second rotating rod (404) rotatably connected to the top center of both ends of the inner wall of the outer frame (1). One end of a torsion spring (405) is fixed to the outer wall of both ends of the second rotating rod (404). The other ends of the two torsion springs (405) are fixedly connected to the inner wall of the light-shielding film winding drum (402). The light-shielding film winding drum (402) is rotatably connected to the outer wall of the second rotating rod (404). One end of the light-shielding film (4) is wound on the outer wall of the light-shielding film winding drum (402). The other end of the light-shielding film (4) is fixed with a connecting block (401). The same first rotating rod (201) is rotatably connected to both ends of the bottom of the inner wall of the outer frame (1). The two ends of the first rotating rod (201) are fixed with winding rollers (202). One end of a connecting rope (203) is wound on the outer wall of the two winding rollers (202). The other ends of the two connecting ropes (203) are fixedly connected to the bottom of the connecting block (401).
2. The laminated glass with adjustable light transmittance according to claim 1, characterized in that, The inner wall of the outer frame (1) is provided with grooves (103) at both ends, and sliders (403) are slidably provided inside the two grooves (103). The two sliders (403) are respectively fixedly connected to the two ends of the connecting block (401).
3. The laminated glass with adjustable light transmittance according to claim 1, characterized in that, One end of the first rotating rod (201) is fixed with a turntable (2).
4. The laminated glass with adjustable light transmittance according to claim 3, characterized in that, The first rotating rod (201) has a ratchet (204) fixed on the outer wall of one end near the turntable (2), and a pawl (205) is rotatably connected to the bottom of the outer wall of one end of the outer frame (1) through a torsion spring, and the pawl (205) meshes with the ratchet (204).
5. The laminated glass with adjustable light transmittance according to claim 1, characterized in that, A sealing plate (102) is fixedly installed on the top of the outer frame (1) by bolts, and a sealing gasket is installed on the bottom of the sealing plate (102).
6. The laminated glass with adjustable light transmittance according to claim 5, characterized in that, The four corners of the inner wall of the outer frame (1) are fixed with guide strips (301), and the distance between the guide strips (301) and the interior of the outer frame (1) is adapted to the glass (3).
7. The laminated glass with adjustable light transmittance according to claim 1, characterized in that, Both of the glass panes (3) are provided with sealing rings (101) on the sides that are far apart from each other.