The present invention relates to a lamp holder with a securing stake to secure the holder in a garden or yard, and particularly to a lamp holder with a securing stake, which is equipped with a timer or light sensor to facilitate more efficient control of on and off of the lamp.
A lamp holder used outdoors, a garden or yard for example, is usually with its electric line and holder lying on the ground casually. The holder is therefore susceptible to rain and wind. The lamp holder can be neither fixed nor energy saving; when the power is connected, the bulb will be lit until the switch of the lamp is turned on manually, and on the other hand, the power be disconnected until the switch is turned off manually. Consequently, it is necessary to provide a lamp holder with a securing stake and is equipped with a timer or light sensor to facilitate more efficient control of on and off of the lamp.
An object of the present invention is to provide a lamp holder with a securing stake to secure the holder in a garden or yard, and particularly to a lamp holder with a securing stake, which is equipped a timer to facilitate more efficient control of on and off of the lamp.
Another object of the present invention is to provide a lamp holder with a securing stake to secure the holder in a garden or yard, and particularly to a lamp holder with a securing stake, which is equipped with a light sensor to facilitate more efficient control of on and off of the lamp.
A lamp holder with a securing stake according to the present invention comprises a power input line provided with a plug; a main body provided with an accommodating space whose front end is provided with an opening, whose back end is provided with an power line opening for the passing of a power line, and whose bottom is provided with a protrusion, which is provided with a connecting part; a bulb socket disposed in the accommodating space; a control circuit disposed in the accommodating space and coupled with the bulb socket and the power line; and a stake whose upper end is provided with a protrusion which is provided with a connecting part, such that the connecting part of the main body and the connecting part of the securing stake can be connected together to assemble the lamp holder with a securing stake.
The present invention can be more fully understood by reference to the following description and accompanying drawings, in which:
FIGS. 1(a) and 1(b) are schematic front view and left-side view, respectively, of a preferred embodiment of a lamp holder with a securing stake according to the present invention;
FIGS. 1(a) and 2(b) are schematic front view and left-side view, respectively, of a preferred embodiment of a lamp holder with a securing stake according to the present invention. The lamp holder with a securing stake according to present invention comprises a power input line 1; a main body 2, a bulb socket 3, a control circuit 4, and a securing stake 5.
Wherein, the power input line 1 whose one end is provided with a plug 11 for coupling with a power supply (not shown), an alternate current of 110V or 220V for example.
The main body 2 is provided with a accommodating space 21 whose front end is provided with a opening 22, for example but not limited to a flaring opening, whose back end is provided with a power line opening 23 for the passing of the power input line 1, and whose bottom is provided with a protrusion 24, which is provided with a connecting part 241, for example but not limited to a tightening hole. Furthermore, the main body 2 is made of plastic material or metal material, and the main body 2 is made by molding method when it is made of plastic material.
The bulb socket 3 is secured in the accommodating space 21 to secure a bulb (not shown) therein.
The control circuit 4 is secured in the accommodating space 21 and coupled with the bulb socket 3 and the power input line 1 to control the flow of electric current to the lamp holder.
The stake 5 is provided with a protrusion 51 on its upper end and the protrusion 51 is provided with a connecting part 511, which is a, for example but not limited to, a tightening hole. Furthermore, the lower end of the stake 5 is decreasing in size into a sharp end such that the lamp holder can be secured in a garden or yard. The main body 2 and the securing stake 5 are preferably made of insulating material, for example but not limited to plastics.
Upon assembling, the power input line 1 may first be put through the power line opening 23, and then the bulb socket 3 and the control circuit 4 are disposed in sequence into the accommodating space 21. The power input line 1 is then coupled with the control circuit 4. Finally, a screw 7 is put through the connecting part 241 of the main body 2 and the connecting part 511 of the securing stake 5, and a nut 71 is screwed into the screw 7 to complete the assembly of the lamp holder with a securing stake according to the present invention.
The voltage-down and rectifying circuit 42 is disposed on the printed circuit board 41 and coupled with the power input line 1 such that the alternate current input from the power supply can be reduced in voltage and rectified into direct current for the use of the microcontroller 43.
The microcontroller 43 is disposed on the printed circuit board 41 and coupled with the voltage-down and rectifying circuit 42. A preferred embodiment of the microcontroller 43 is an Application-Specific Integrated Circuit (ASIC). The microcontroller 43 further comprises a timer therein (not shown).
The amplifying circuit 44 is disposed on the printed circuit board 41 and coupled with the microcontroller 43, which is, for example but not limited to, a transistor (a PNP transistor in the present embodiment). The amplifying circuit 44 may be controlled by the microcontroller 43 to amplify the electric current for actuate the relay 45.
The relay 45 is disposed on the printed circuit board 41 and coupled with the amplifying circuit 44. The relay 45 may be controlled by the microcontroller 43 to connect or disconnect the electric current output to the bulb socket 3.
The operation of the present invention can be described as follows: When electric current is first transmitted to the lamp holder, the microcontroller 43 starts to count 6 hours of time and control the relay 45 to output electric current to the bulb socket 3 such that the bulb on the bulb socket 3 is turned on. At the end of the 6 hours, the microcontroller 43 turns off the relay 45 to disconnect electric current to the bulb socket 3 such that the bulb on the bulb socket 3 is turned off. Meanwhile, the timer in the microcontroller 43 starts to count 18 hours. At the end of the 18 hours, the microcontroller 43 starts again to count 6 hours and, in the mean time control the relay 45 to output electric current to the bulb of the bulb socket 3 to turn on the bulb. In the way, the on and off of the bulb on the bulb socket 3 can be controlled.
The operation of the present invention can be described as follows: When electric current is first transmitted to the bulb socket 3, if the light sensor 8 detects light signals, the microcontroller 43 will control the relay 45 to disconnect electric current output to the bulb socket 3 such that the bulb on the bulb socket 3 is turned off. If the light sensor 8 detects no light signals, the microcontroller 43 starts to count 6 hours and controls the relay 45 to output electric current to the bulb socket 3 such that the bulb on the bulb socket 3 is turned on. The microcontroller 43 will only control the relay 45 to disconnect electric current after the 6 hours of counting unless the light sensor 8 detects very strong light during the 6 hours period of counting (this function is intended to prevent car light or street lamp from causing error action). At the end of the 6 hours of counting, the microcontroller 43 will detect if it is daytime. If it is daytime, the microcontroller 43 controls the relay 45 to continuously disconnect electric current output to the bulb of the bulb socket 3 and record that it is daytime. If the light sensor 8 detects again the day is dark, the light sensor 8 will control the relay 45 to output electric current to the bulb socket 3 such that the bulb on the bulb socket 3 is turned on for 6 hours. In the way, the on and off of the bulb on the bulb socket 3 can be controlled.
Consequently, by putting the present invention into practice, the lamp holder can be secured in a garden or yard and equipped with a timer or light sensor to facilitate more efficient control of on and off of the lamp.
While the invention has been described with reference to the a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.
Number | Date | Country | Kind |
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200520007302.8 | Mar 2005 | CN | national |