CN101660666B - Portable lamps - Google Patents

Abstract

The invention relates to a portable lamp which comprises a shell, a lamp holder arranged on the shell, as well as a spotlighting reflector, a floodlighting reflector, a light source and a rotating shaft which are arranged in the lamp holder, where the rotating shaft is used for mounting the light source and driving the light source to rotate, two ends of the spotlighting reflector are open, the spotlighting reflector is positioned on the lateral wall of an inner cavity of the lamp holder; the floodlighting reflector is positioned at the bottom of the inner cavity of the lamp holder; two ends of the rotating shaft are positioned on the lateral wall of the inner cavity of the lamp holder, and at least one end of the rotating shaft penetrates the lateral wall of the inner cavity of the lamp holder; and the light source is positioned below the lower-end opening of the spotlighting reflector. The portable lamp achieves the switching between the spotlighting function and the floodlighting function by rotating the light source to match the spotlighting reflector and the floodlight reflector, considers both spotlighting and floodlighting, is convenient for using and has good illumination effect.

Description

Portable lamps

technical field

The invention relates to the field of portable lamps, and more specifically relates to a portable lamp capable of realizing two lighting functions of spotlighting and floodlighting.

Background technique

Portable lamps in the prior art, especially portable lamps using LED light sources, have a single lighting function and cannot take into account spotlighting and floodlighting at the same time, which will bring a lot of inconvenience to use. For example, when walking at night, you need to have Lighting with wide illuminance in the near area also requires spotlight lighting that can irradiate far away. Existing portable lamps with functions of floodlight and spotlight generally adopt a defocusing method or a reflector frosting method to achieve floodlight and spotlight effects. Defocused lamps tend to have uneven illumination, and dark spots and black holes will appear in the light spots, while the way the reflector is frosted will greatly reduce the lighting effect of the lamps.

Contents of the invention

The technical problem to be solved by the present invention is to provide a portable lamp with a rotatable illuminant for the defects of uneven illumination and poor lighting effect of the above-mentioned portable lamps in the prior art, which can realize the interchangeability of floodlight and spotlight functions .

The technical solution adopted by the present invention to solve the technical problem is to construct a portable lamp, which includes a housing and a lamp holder arranged on the housing. device, light source, and a rotating shaft for installing the light source and driving the light source to rotate, the two ends of the light concentrating reflector are open, the light concentrating reflector is placed on the side wall of the inner cavity of the lamp head, and the flood light reflector is placed The bottom of the inner cavity of the lamp head, the two ends of the rotating shaft are placed on the side wall of the inner cavity of the lamp head and at least one end passes through the side wall, and the light source is located below the lower opening of the concentrating reflector;

When the light source is driven by the rotating shaft to a position facing the opening of the lower end of the concentrating reflector, the portable lamp is in a concentrating lighting state;

When the light source is turned to a position facing the flood reflector driven by the rotating shaft, the portable lamp is in a flood lighting state.

In the portable lamp according to the present invention, the light concentrating reflector is a funnel-shaped reflector, the flood reflector is a reflective curved surface, and the flood reflector is arranged at a certain angle with the bottom surface of the inner cavity of the lamp head.

In the portable lamp according to the present invention, a knob for rotating the rotating shaft is provided at one end passing through the side wall of the rotating shaft.

In the portable lamp according to the present invention, the knob is provided with a positioning protrusion for preventing excessive rotation of the shaft, and the outer wall of the lamp head is provided with a positioning stopper adapted to it.

In the portable lamp of the present invention, the light source is an LED illuminant.

The portable lamp implementing the present invention has the following beneficial effects: the portable lamp of the present invention cooperates with the concentrating reflector and the flood light emitter by rotating the light source so as to realize the conversion between the functions of spot lighting and flood lighting, taking into account the functions of spot lighting With flood lighting, it is easy to use and has good lighting effects.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a three-dimensional schematic diagram of a preferred embodiment of a portable lamp of the present invention;

Fig. 2 is a cross-sectional view of a preferred embodiment of the portable lamp of the present invention when it is in spot lighting;

Fig. 3 is a sectional view of a preferred embodiment of the portable lamp of the present invention under flood lighting.

Detailed ways

As shown in Figure 1, Figure 2 and Figure 3, in the preferred embodiment of the portable lamp of the present invention, it includes a housing 100, a lamp holder 110 arranged on the housing, a power supply 170 arranged in the housing, and a Concentrating reflector 140, flood reflector 130, light source 150 in 110, and the rotating shaft 160 that is used to install light source 150 and drives light source 150 to rotate, and concentrating reflector 140 two ends openings, is installed in the side of lamp cap 110 inner cavity On the wall, the two ends of the rotating shaft 160 are installed on the side wall of the inner cavity of the lamp holder 110 and one end passes through the side wall. The light source 150 is installed on the rotating shaft 160 and can rotate together with the rotating shaft 160. , the flood reflector 130 is placed at the bottom of the inner cavity of the lamp holder 110 .

In a preferred embodiment of the present invention, the concentrating reflector 140 is a funnel-shaped reflector, and the flood reflector 130 is a reflective curved surface. In order to ensure the lighting effect, the flood reflector 130 is arranged at a certain angle with the bottom surface of the inner cavity of the lamp holder 110.

In a preferred embodiment of the present invention, a knob 161 is provided at the end of the rotating shaft 160 passing through the side wall of the lamp cap to facilitate the rotation of the rotating shaft 160. In order to control the rotation angle of the rotating shaft 160 within a certain range and prevent the rotation angle from being too large, the light source 150 and the reflective light The lamp is in a non-optimal relative position, a protrusion (not shown) for positioning is provided on the knob 161, and a positioning stopper (not shown) adapted to it is provided on the outer wall of the lamp cap.

In a preferred embodiment of the present invention, the light source 150 is an LED illuminant, which has the advantages of high luminous efficiency and low energy consumption.

During use, when spotlighting is needed, turn the knob 161 to drive the rotating shaft 160 to rotate, so that the light source 150 rotates to the position where the light-emitting surface is facing the lower opening of the light-concentrating reflector 140. Referring to Fig. 2, the light emitted by the light source 150 is concentrated The reflector is reflected and projected to form a converging light beam. The light concentrating effect is good, and the illumination is uniform. The light spot will not appear dark spots or black holes. It is suitable for directional and long-distance lighting; when flood lighting is required, rotate the light source 150 to emit light Facing the position facing the flood reflector 130, referring to FIG. 3, the light emitted by the light source 150 is reflected by the flood reflector to form a large-scale uniform illumination, which is suitable for close-range and large-scale illumination.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, many forms can also be made without departing from the gist of the present invention and the protection scope of the claims, and these all belong to the protection of the present invention.

Claims (5)

1. A portable lamp, comprising a housing, a lamp holder arranged on the housing, characterized in that, it also includes a light-condensing reflector, a flood reflector, a light source, and a lamp for installing the light source and driving the light source The rotating shaft has openings at both ends of the condensing reflector, the condensing reflector is placed on the side wall of the inner cavity of the lamp head, the flood reflector is placed at the bottom of the inner cavity of the lamp head, and the two ends of the rotating shaft are placed On the side wall of the inner cavity of the lamp holder and at least one end passes through the side wall, the light source is located below the lower opening of the light concentrating reflector: When the light source is driven by the rotating shaft to a position facing the opening of the lower end of the concentrating reflector, the portable lamp is in a concentrating lighting state; When the light source is turned to a position facing the flood reflector driven by the rotating shaft, the portable lamp is in a flood lighting state. 2. The portable lamp according to claim 1, wherein the light concentrating reflector is a funnel-shaped reflector, the flood reflector is a reflective curved surface, and the flood reflector is formed with the bottom surface of the inner cavity of the lamp head. set at an angle. 3. The portable lamp according to claim 1, wherein a knob for rotating the rotating shaft is provided at one end of the rotating shaft passing through the side wall. 4 . The portable lamp according to claim 3 , wherein the knob is provided with a positioning protrusion for preventing the rotation shaft from over-rotating, and the outer wall of the lamp head is provided with a positioning stopper adapted to it. 5. The portable lamp according to any one of claims 1 to 4, wherein the light source is an LED illuminant.

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