An angle-adjustable lamp comprises a lamp body, a plurality of heat sinks, a plurality of connecting rods, and a plurality of light-transmitting covers. The plurality of heat sinks are rotatably connected to a side wall of the lamp body respectively through the plurality of connecting rods. The plurality of heat sinks are rotationally symmetrically disposed around a longitudinal center axis of the lamp body. Each of the plurality of light-transmitting covers is disposed on a side of a corresponding one of the plurality of heat sinks facing away from the lamp body. When the plurality of heat sinks are rotated around the plurality of connecting rods, an angle between each of the plurality of light-transmitting covers and the lamp body is correspondingly changed, so that a light exit angle of light transmitted through each of the plurality of light-transmitting covers is correspondingly changed.

FIELD OF THE DISCLOSURE

The present disclosure relates to an angle-adjustable lamp.

BACKGROUND OF THE DISCLOSURE

Existing light-emitting lamps, such as Chinese patent number CN103527963, comprise a lamp holder and a drive circuit board. The drive circuit board is disposed on the lamp holder. The drive circuit board comprises six rectangular panels and a circular panel. The six rectangular panels are enclosed to define a cylindrical structure. One end of the cylindrical structure is fixed on the lamp holder, and the circular panel is fixed on the other end of the cylindrical structure. The six rectangular panels and the circular panel are evenly disposed with light-emitting diode (LED) light sources. The LED light sources are arranged in a corn-shaped arrangement, which solves the problem that a single LED light source has a limited light-emitting angle to enable the LED light sources to achieve 360° light output, and light distribution is more uniform. However, the LED light sources emit uniform light, have no focus, and cannot be adjusted for positions that require more illumination, and the light emission is limited.

BRIEF SUMMARY OF THE DISCLOSURE

The present disclosure provides an angle-adjustable lamp configured to be adjusted to illuminate key locations according to a user's needs.

In order to solve the technical problem, a technical solution of the present disclosure is as follows.

An angle-adjustable lamp comprises a lamp body, a plurality of heat sinks, a plurality of connecting rods, and a plurality of light-transmitting covers. The plurality of heat sinks are rotatably connected to a side wall of the lamp body respectively through the plurality of connecting rods. The plurality of heat sinks are rotationally symmetrically disposed around a longitudinal center axis of the lamp body. Each of the plurality of light-transmitting covers is disposed on a side of a corresponding one of the plurality of heat sinks facing away from the lamp body. When the plurality of heat sinks are rotated around the plurality of connecting rods, an angle between each of the plurality of light-transmitting covers and the lamp body is correspondingly changed, so that a light exit angle of light transmitted through each of the plurality of light-transmitting covers is correspondingly changed.

In a preferred embodiment, positions of the side wall of the lamp body respectively corresponding to the plurality of heat sinks are respectively disposed with two lugs, and a side of each of the plurality of heat sinks facing the lamp body has a connecting member. The two lugs and the connecting member respectively comprise a position-providing hole, and each of the plurality of connecting rods is configured to pass through the position-providing holes of the two lugs and the connecting member and is connected to a plug.

In a preferred embodiment, a surface of each of the plurality of heat sinks comprises a grid-shaped heat dissipation hole.

In a preferred embodiment, the plurality of heat sinks are two, three, four, or five heat sinks, which are rotationally symmetrically disposed around the longitudinal center axis of the lamp body.

In a preferred embodiment, the plurality of heat sinks are three heat sinks, and the three heat sinks are sector-shaped. An inner edge of each of the three heat sinks comprises a position-providing arc. The three heat sinks are spaced from each other in a circumferential direction of the lamp body. Each of the three heat sinks is integrally formed with a mounting groove, and a light-emitting diode (LED) light source board and a corresponding one of the plurality of light-transmitting covers are sequentially assembled in the mounting groove.

In a preferred embodiment, the three heat sinks are configured to be rotated to different positions relative to the lamp body to form a planar light source, an elevation light source, or a multi-faceted light source.

In a preferred embodiment, a positioning block is disposed on an edge of the mounting groove of each of the three heat sinks, a positioning groove is defined on the LED light source board, and each of four corners of each of the plurality of light-transmitting covers is disposed with a positioning column.

Compared with the existing techniques, the technical solution has the following advantages.

The angle-adjustable lamp of the present disclosure can be freely adjusted by rotating the plurality of heat sinks for places that require more light irradiation at other angles, thereby changing an angle between the plurality of light-transmitting covers and the lamp body. For example, in the exhibition hall, some places require more light to murals on the wall, and some places only need more light to enable passage of visitors, which can be achieved by adjusting the angle of the angle-adjustable lamp. In this way, under the premise of 360° light output, the free adjustment of the key lighting area can be realized.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure will be further described below in combination with the accompanying drawings and embodiments.

Referring toFIGS.1to4, an angle-adjustable lamp is illustrated and comprises a lamp body4, a plurality of heat sinks3, a plurality of connecting rods2, and a plurality of light-transmitting covers7.

The plurality of heat sinks3are rotatably connected to a side wall of the lamp body4respectively through the plurality of connecting rods2, and the plurality of heat sinks3are rotationally symmetrically disposed around a longitudinal center axis of the lamp body4.

Each of the plurality of light-transmitting covers7is disposed on a side of a corresponding one of the plurality of heat sinks3facing away from the lamp body4. When the plurality of heat sinks3are rotated around the plurality of connecting rods2, an angle between each of the plurality of light-transmitting covers7and the lamp body4is changed correspondingly, so that a light exit angle of light transmitted through each of the plurality of light-transmitting covers7is also changed correspondingly.

In order to achieve a rotating connection between the lamp body4and each of the plurality of heat sinks3, positions of the side wall of the lamp body4respectively corresponding to the plurality of heat sinks3are respectively disposed with two lugs8, and a side of each of the plurality of heat sinks3facing the lamp body4has a connecting member9. The two lugs8and the connecting member9respectively comprise a position-providing hole. Each of the plurality of connecting rods2passes through the position-providing holes of the two lugs8and the connecting member9and is connected to a plug1.

In this embodiment, a surface of each of the plurality of heat sinks3comprises a grid-shaped heat dissipation hole.

In this embodiment, the plurality of heat sinks3are three heat sinks3. The three heat sinks3are sector-shaped. An inner edge of each of the three heat sinks3comprises a position-providing arc33, and the three heat sinks3are spaced from each other in a circumferential direction of the lamp body4to facilitate a rotation of the three heat sinks3.

Each of the plurality of heat sinks3is integrally formed with a mounting groove31. A light-emitting diode (LED) light source board32and a corresponding one of the plurality of light-transmitting covers7are sequentially assembled in the mounting groove31, and the mounting groove31, the LED light source board32, and the corresponding one of the plurality of light-transmitting covers7are fixed together through screws6. For ease of installation, a positioning block311is disposed on an edge of the mounting groove31, and a positioning groove321is defined on the LED light source board32. Each of four corners of each of the plurality of light-transmitting covers7is disposed with a positioning column71.

In this embodiment, the three heat sinks3can be rotated to different positions relative to the lamp body4to form a planar light source (seeFIG.3), an elevation light source (seeFIG.2), or a multi-faceted light source (seeFIG.4).

The angle-adjustable lamp of the present disclosure can be freely adjusted by rotating the plurality of heat sinks3for places that require more light irradiation at other angles, thereby changing angles between the plurality of light-transmitting covers7and the lamp body4. For example, in the exhibition hall, some places require more light to murals on a wall, and some places only need more light to enable passage of visitors, which can be achieved by adjusting the angle of the angle-adjustable lamp. In this way, under the premise of 360° light output, the free adjustment of the key lighting area can be realized.

Referring toFIG.5, the difference between an angle-adjustable lamp in Embodiment 2 and the angle-adjustable lamp in Embodiment 1 is described below. In this embodiment, the plurality of heat sinks3is two heat sinks3, which are disposed rotationally symmetrically around the longitudinal center axis of the lamp body4.

Referring toFIG.6, the difference between an angle-adjustable lamp in Embodiment 3 and the angle-adjustable lamp in Embodiment 1 is described below. In this embodiment, the plurality of heat sinks3are four heat sinks3, which are disposed rotationally symmetrically around the longitudinal center axis of the lamp body4.

The plurality of heat sinks3of the angle-adjustable lamp of the present disclosure can be two, three, four, or five heat sinks3. A lamp holder5may be a screw-on type or a snap-on type.

The aforementioned embodiments are merely some embodiments of the present disclosure, and the scope of the disclosure is not limited thereto. Thus, it is intended that the present disclosure cover any modifications and variations of the presently presented embodiments provided they are made without departing from the appended claims and the specification of the present disclosure.