Low-light-loss adjustable down lamp

Abstract

The utility model discloses a low-light-loss adjustable down lamp which comprises an installation bottom shell which is of a cylindrical base structure and is of a down lamp bottom end bearing structure. The LED lamp body is mounted in the mounting bottom shell, and the LED lamp body is a down lamp light source; a heat dissipation transparent cover is arranged on the inner wall face of the mounting bottom shell, and the top end of the heat dissipation transparent cover is in butt joint with the bottom end of the inner wall face of the transparent outer cover. According to the low-light-loss adjustable down lamp, the optical fiber loss prevention assembly is installed in the installation bottom shell, the height of the LED lamp body is adjusted through rotation of two-section type threads of the telescopic frame, so that the LED lamp body and the butt-joint optical fiber head are directly in butt joint in a vertical state, and the butt-joint optical fiber head is prevented from being bent due to gravity and an extrusion state; therefore, loss caused by bending in the power supply process of the LED lamp body is avoided, electricity is directly sent into the LED lamp body through the butt joint optical fiber head, the working time of the LED lamp body is further prolonged, and the stability of a light source of the LED lamp body is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of downlights, in particular to a low light loss adjustable downlight. Background Art

[0002] With the development of the LED lamp market, lamps with adjustable angles have appeared according to the needs of projecting light positions. Downlights with adjustable angles are widely used in downlight working areas, especially in places with high lighting requirements, such as museums, art galleries, and high-end clubs.

[0003] Due to the adjustment of the downlight angle, the light output by the light beam decreases in brightness or becomes uneven as the optical fiber wears, which increases the degree of light loss, reduces the illumination area of ​​the downlight, and affects the illumination effect. In addition, existing downlight equipment limits the illumination range of the light beam, making it easy for the light to be blocked by dirt retained inside the downlight, increasing the light loss of the downlight. Utility Model Content

[0004] The purpose of the utility model is to provide a low light loss adjustable downlight to solve the problem proposed in the above background technology that the light at the output end of the downlight becomes less bright or uneven as the optical fiber wears, thereby increasing the degree of light loss, reducing the illumination area of ​​the downlight and affecting the illumination effect, and that the existing downlight equipment limits the illumination range of the light beam, making it easy for the light to be blocked by dirt retained inside the downlight, thereby increasing the light loss of the downlight.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low light loss adjustable downlight, comprising a mounting bottom shell, which is arranged as a cylindrical base structure, and the mounting bottom shell is a receiving structure at the bottom end of the downlight;

[0006] The LED lamp body is installed inside the installation bottom shell, and the LED lamp body is the light source of the downlight;

[0007] The inner wall surface of the installation bottom shell is provided with a heat dissipation transparent cover, and the top of the heat dissipation transparent cover is butted with the bottom of the inner wall surface of the transparent outer cover, the bottom of the transparent outer cover is symmetrically provided with an L-shaped opening, and the bottom of the transparent outer cover is symmetrically provided with a strip-shaped protrusion structure on the outer wall surface of the installation bottom shell, and the bottom of the installation bottom shell is provided with a

[0008] Anti-fiber loss components to avoid losses caused by bending when supplying power to the LED lamp body;

[0009] The telescopic shaft is symmetrically installed on both sides of the bottom end of the installation bottom shell. The telescopic shaft consists of a T-shaped shaft rod and an annular shaft, and the annular shaft of the telescopic shaft is connected to the inner wall surface of the docking frame. A mounting frame is provided at the bottom end of the docking frame, and a connecting plate is snap-connected to the bottom end of the mounting frame.

[0010] By adopting the above technical solution, the loss of the LED lamp body during the power supply process is reduced, which causes the luminous brightness of the LED lamp body to decrease.

[0011] Preferably, the top of the mounting bottom shell abuts against a protruding structure provided on the inner wall surface of the transparent outer cover, and a magnetic attraction ring is provided in the L-shaped opening of the transparent outer cover.

[0012] By adopting the above technical solution, the transparent outer cover is tightly snap-fitted and connected to the top of the mounting bottom shell.

[0013] Preferably, the magnetic attraction ring is attracted to a metal strip arranged on the top of the outer wall of the mounting bottom shell, and a limiting ring abutting against the bottom end of the transparent outer cover is arranged on the outer wall of the mounting bottom shell.

[0014] By adopting the above technical solution, the magnetic attraction ring is tightly connected to the metal strip embedded in the outer wall of the installation bottom shell.

[0015] Preferably, the optical fiber loss prevention component comprises:

[0016] A docking optical fiber head, which is connected to the bottom end of the LED lamp body, and the docking optical fiber head is vertically located inside the mounting bottom shell;

[0017] A telescopic frame, which is symmetrically mounted on both sides of the bottom end of the LED lamp body;

[0018] A shielding protective cover is installed at the bottom end of the installation bottom shell, and the shielding protective cover is wrapped around the outer wall of the docking optical fiber head cable;

[0019] A power base is arranged inside the mounting frame.

[0020] By adopting the above technical solution, the anti-optical fiber loss component facilitates reducing the bending loss of the optical fiber in the process of supplying power to the LED lamp body.

[0021] Preferably, the docking optical fiber head cable passes through the installation base, and the docking optical fiber head cable is docked with the power base.

[0022] By adopting the above technical solution, power is supplied by connecting the cable of the optical fiber head to the power base.

[0023] Preferably, a gap is left between the power base and the mounting bottom shell, and the power base and the mounting bottom shell are arranged with their axes aligned.

[0024] By adopting the above technical solution, a gap is formed between the power base and the installation bottom shell to prevent the two from colliding with each other.

[0025] Preferably, the bottom end of the power base is butted against the bottom end of the connecting plate, and air holes are equidistantly arranged on the surface of the connecting plate.

[0026] By adopting the above technical solution, as the bottom end of the power base is docked with the connecting plate, the power base is kept stably installed inside the mounting frame.

[0027] Compared with the prior art, the utility model has the following beneficial effects: the low light loss adjustable downlight:

[0028] 1. When in use, the anti-optical fiber loss component installed inside the installation bottom shell is used to adjust the height of the LED lamp body through the two-stage thread rotation of the telescopic frame, so that the LED lamp body and the docking optical fiber head are directly docked in a vertical state, avoiding the bending of the docking optical fiber head caused by gravity and extrusion, thereby avoiding the loss caused by bending during the power supply process of the LED lamp body, and keeping the docking optical fiber head to directly send electricity into the LED lamp body, further extending the working time of the LED lamp body and maintaining the stability of the LED lamp body's irradiation work;

[0029] 2. The heat dissipation transparent cover and the transparent outer cover located outside the LED lamp body are located at the half of the light-emitting position of the LED lamp body, which reduces the shielding caused by the dirt inside the lamp tube during the irradiation process of the downlight. With the diffusion effect of the light source of the LED lamp body and the transparent outer cover, it is convenient to expand the irradiation position of the light source and reduce the shielding loss caused by the light source during the irradiation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the utility model;

[0031] Figure 2 This is a schematic diagram of the overall internal side section stereoscopic structure of the utility model;

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the power base and the mounting frame of the utility model;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the installation of the bottom shell and the LED lamp body of the utility model;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection plate and the mounting frame of the utility model;

[0035] Figure 6 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0036] In the figure: 1. Install the bottom shell; 2. Transparent heat dissipation cover; 3. Transparent outer cover; 4. Magnetic ring; 5. Limiting ring; 6. LED lamp body; 7. Docking fiber head; 8. Telescopic bracket; 9. Shielding protective cover; 10. Power base; 11. Connecting plate; 12. Mounting bracket; 13. Docking bracket; 14. Telescopic shaft. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] See also Figure 1-6 The utility model provides a technical solution: a low light loss adjustable downlight, including a mounting bottom shell 1, a heat dissipation transparent cover 2, a transparent outer cover 3, a magnetic ring 4, a limit ring 5, an LED lamp body 6, a docking optical fiber head 7, a telescopic frame 8, a shielding protective cover 9, a power base 10, a connecting plate 11, a mounting frame 12, a docking frame 13 and a telescopic rotating shaft 14;

[0039] The mounting bottom shell 1 is provided as a cylindrical base structure, and the mounting bottom shell 1 is a receiving structure for the bottom end of the downlight, and the top end of the mounting bottom shell 1 abuts against a raised structure provided on the inner wall surface of the transparent outer cover 3, and a magnetic attraction ring 4 is provided in an L-shaped opening of the transparent outer cover 3, and the magnetic attraction ring 4 is attracted to a metal strip provided on the top end of the outer wall surface of the mounting bottom shell 1, and a limiting ring 5 abutting against the bottom end of the transparent outer cover 3 is provided on the outer wall surface of the mounting bottom shell 1;

[0040] The LED lamp body 6 is installed inside the mounting bottom shell 1, and the LED lamp body 6 is the light source of the downlight;

[0041] The inner wall surface of the installation bottom shell 1 is provided with a heat dissipation transparent cover 2, and the top of the heat dissipation transparent cover 2 is butted with the bottom end of the inner wall surface of the transparent outer cover 3, the bottom end of the transparent outer cover 3 is symmetrically provided with an L-shaped opening, and the bottom end of the transparent outer cover 3 is snap-connected with a strip-shaped protrusion structure symmetrically provided on the outer wall surface of the installation bottom shell 1, and an anti-optical fiber loss component is provided inside the bottom end of the installation bottom shell 1 to avoid loss caused by bending during the power supply process of the LED lamp body 6;

[0042] The telescopic shaft 14 is symmetrically mounted on both sides of the bottom end of the mounting bottom shell 1. The telescopic shaft 14 is composed of a T-shaped shaft and an annular shaft, and the annular shaft of the telescopic shaft 14 is located at the inner wall surface of the docking frame 13 and connected. The bottom end of the docking frame 13 is provided with a mounting frame 12, and the bottom end of the mounting frame 12 is engaged with a connecting plate 11;

[0043] In conjunction with the accompanying drawings Figure 1-6As shown, when in use, a metal strip is embedded in the top position of the side wall of the mounting bottom shell 1, and the internal groove of the mounting bottom shell 1 provides an installation position for the LED lamp body 6. The LED lamp body 6 is a bulb of a mature downlight sold on the market. When in use, the LED lamp body 6 is located inside the heat dissipation transparent cover 2. The heat dissipation transparent cover 2 is a cylindrical structure made of high-temperature resistant transparent plastic. The air vents are arranged at the connection between the heat dissipation transparent cover 2 and the mounting bottom shell 1 to facilitate gas flow, wherein the heat dissipation transparent cover 2 is snap-connected with the transparent outer cover 3, as shown in FIG. Figure 2 As shown, it is convenient to diverge the light source of the LED lamp body 6, so that the light source can fully irradiate the corresponding position. The transparent outer cover 3 is polished into a concave-convex structure on the outer wall according to the use needs to assist the light source to concentrate or diverge, so that the light loss of the LED lamp body 6 is further reduced. The magnetic attraction ring 4 arranged in the L-shaped opening of the transparent outer cover 3 is attracted to the metal strip on the side wall of the installation bottom shell 1, and the strip-shaped protrusion structure that passes through the bottom end of the L-shaped opening of the transparent outer cover 3 and penetrates the installation bottom shell 1 is against the surface of the limiting ring 5, as shown in FIG. Figure 1-4 As shown, as the transparent outer cover 3 is rotated, the L-shaped opening of the transparent outer cover 3 is abutted against the strip protrusion of the mounting bottom shell 1, so that the mounting bottom shell 1 and the transparent outer cover 3 are locked, and the transparent outer cover 3 is rotated so that the L-shaped opening of the transparent outer cover 3 is separated from the strip protrusion of the mounting bottom shell 1, so that the mounting bottom shell 1 and the transparent outer cover 3 are separated, and the telescopic rotating shaft 14 installed on the side wall of the mounting bottom shell 1 is slidably connected, as shown in FIG. Figure 2 and Figure 3 as well as Figure 6 As shown, the telescopic shaft 14 is pushed and the T-shaped shaft rod is located on the side wall of the bottom end of the mounting bottom shell 1 to maintain a tight installation, so that the mounting bottom shell 1 is easily rotated to adjust the angle with the mounting frame 12, and the docking frames 13 on both sides of the mounting frame 12 assist the telescopic shaft 14 to be installed with the mounting bottom shell 1;

[0044] Fiber loss prevention components include:

[0045] The docking optical fiber head 7 is connected to the bottom end of the LED lamp body 6, and the docking optical fiber head 7 is vertically located inside the mounting bottom shell 1, the cable of the docking optical fiber head 7 penetrates the mounting bottom shell 1, and the cable of the docking optical fiber head 7 is docked with the power base 10;

[0046] The telescopic frame 8 is symmetrically mounted on both sides of the bottom end of the LED lamp body 6;

[0047] A shielding protective cover 9 is installed at the bottom end of the installation bottom shell 1, and the shielding protective cover 9 is wrapped around the outer wall of the connecting optical fiber head 7 cable;

[0048] The power base 10 is arranged inside the mounting frame 12, a gap is left between the power base 10 and the mounting bottom shell 1, and the power base 10 and the mounting bottom shell 1 are arranged with their axes aligned, the bottom end of the power base 10 is in contact with the bottom end of the connecting plate 11, and the surface of the connecting plate 11 is equidistantly provided with air holes;

[0049] In conjunction with the accompanying drawings Figure 1-6 As shown, when the LED lamp body 6 enters the installation bottom shell 1 for installation, the two-stage threaded connection structure of the telescopic frame 8 is rotated to adjust the height of the telescopic frame 8. As the bottom end of the LED lamp body 6 is docked with the telescopic frame 8, the two are kept connected by bolts. After the installation height of the LED lamp body 6 is limited, it is convenient for the docking optical fiber head 7 to remain vertical during the connection process, avoiding bending of the docking optical fiber head 7, which causes damage to the internal optical fiber and uneven light emission of the LED lamp body 6. The shielding protective cover 9 arranged inside the installation bottom shell 1 is a cylindrical structure. When in use, the cable of the docking optical fiber head 7 passes through the installation bottom shell 1, and the cable remains inside the shielding protective cover 9, wherein the shielding protective cover 9 is a metal mesh structure to reduce the influence of external signals. As the cable of the docking optical fiber head 7 is docked with the power base 10, the current output is maintained stable. The power base 10 is installed inside the mounting frame 12 through the connecting plate 11. The air vents arranged equidistantly on the surface of the connecting plate 11 are convenient for the dissipation of working heat of the power base 10. The connecting plate 11 and the mounting frame 12 are installed at the corresponding wall positions by bolts.

[0050] Working principle: When using the low light loss adjustable downlight, install the inside of the mounting base shell 1 and the LED lamp body 6, and keep the LED lamp body 6 connected to one end of the telescopic frame 8 through bolts. As the threaded connection height at both ends of the telescopic frame 8 is adjusted, the force of the LED lamp body 6 squeezing the docking optical fiber head 7 is adjusted to avoid bending of the docking optical fiber head 7. After the cable of the docking optical fiber head 7 is arranged in a circle inside the shielding protective cover 9, it passes through the mounting base shell 1 and docks with the power base 10. As the L-shaped opening at the bottom end of the transparent outer cover 3 passes through the strip-shaped protrusion on the side wall of the mounting base shell 1, the bottom end of the transparent outer cover 3 and the surface of the limit ring 5 can be offset, and as the magnetic attraction The ring 4 is closely connected to the metal of the side wall of the mounting base 1, so that the heat dissipation transparent cover 2 stably mounts the LED lamp body 6 inside the transparent outer cover 3. As the T-shaped shaft of the telescopic shaft 14 is pushed, it penetrates the annular shaft of the telescopic shaft 14 and enters the side wall of the mounting base 1 to maintain connection. The rubber piece connected between the annular shafts of the telescopic shaft 14 is penetrated by the T-shaped shaft of the telescopic shaft 14, which facilitates the adjustment of the irradiation range of the transparent outer cover 3. The mounting frame 12 is installed at the specified position with the bolts, and the connecting plate 11 installed on the inner wall of the mounting frame 12 limits the power base 10, while keeping the heat output of the power base 10 dissipated, thereby increasing the overall practicality.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 low light loss adjustable downlight, comprising: The installation base shell (1) is arranged as a cylindrical base structure, and the installation base shell (1) is a receiving structure at the bottom end of the downlight; An LED lamp body (6), which is installed inside the installation base shell (1), and the LED lamp body (6) is a light source of the downlight; The invention is characterized in that: the inner wall surface of the installation bottom shell (1) is provided with a heat dissipation transparent cover (2), and the top of the heat dissipation transparent cover (2) is butted against the bottom of the inner wall surface of the transparent outer cover (3), the bottom of the transparent outer cover (3) is symmetrically provided with an L-shaped opening, and the bottom of the transparent outer cover (3) is snap-connected with a strip-shaped protrusion structure symmetrically provided on the outer wall surface of the installation bottom shell (1), and the bottom of the installation bottom shell (1) is provided with An anti-optical fiber loss component is used to avoid losses caused by bending during the power supply process of the LED lamp body (6); A telescopic rotating shaft (14) is symmetrically mounted on both sides of the bottom end of the mounting bottom shell (1), the telescopic rotating shaft (14) is composed of a T-shaped shaft rod and an annular shaft, and the annular shaft of the telescopic rotating shaft (14) is located and connected to the inner wall surface of the docking frame (13), the bottom end of the docking frame (13) is provided with a mounting frame (12), and the bottom end of the mounting frame (12) is snap-connected with a connecting plate (11).

2. The low light loss adjustable downlight according to claim 1, characterized in that: The top of the mounting bottom shell (1) abuts against a raised structure arranged on the inner wall surface of the transparent outer cover (3), and a magnetic attraction ring (4) is arranged in the L-shaped opening of the transparent outer cover (3).

3. The low light loss adjustable downlight according to claim 2, characterized in that: The magnetic attraction ring (4) attracts the metal strip arranged at the top of the outer wall surface of the installation base shell (1), and the outer wall surface of the installation base shell (1) is provided with a limiting ring (5) which abuts against the bottom end of the transparent outer cover (3).

4. The low light loss adjustable downlight according to claim 1, characterized in that: The optical fiber loss prevention component comprises: A docking optical fiber head (7), which is connected to the bottom end of the LED lamp body (6), and the docking optical fiber head (7) is located vertically inside the mounting bottom shell (1); A telescopic frame (8) symmetrically mounted on both sides of the bottom end of the LED lamp body (6); A shielding protective sleeve (9) is installed at the bottom end of the installation base shell (1), and the shielding protective sleeve (9) is wrapped around the outer wall surface of the cable of the docking optical fiber head (7); A power base (10) is arranged inside the mounting frame (12).

5. The low light loss adjustable downlight according to claim 4, characterized in that: The cable of the docking optical fiber head (7) passes through the installation base shell (1), and the cable of the docking optical fiber head (7) is docked with the power supply base (10).

6. The low light loss adjustable downlight according to claim 4, characterized in that: A gap is left between the power base (10) and the installation base shell (1), and the power base (10) and the installation base shell (1) are arranged with their axes aligned.

7. The low light loss adjustable downlight according to claim 4, characterized in that: The bottom end of the power base (10) is connected to the bottom end surface of the connection plate (11), and the surface of the connection plate (11) is provided with vent holes at equal intervals.

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