BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a warning device, and more particularly to a warning device disposed on a top of an umbrella.
2. Description of the Prior Art
To prevent collision accident at night, on various products (such as clothes worn by the user at night or when the sight is dim or an independent warning device assembled on a product) are installed a warning device. The existing warning devices include optimal function forms according to the to-be-assembled products for exerting the optimal safety warning effect.
However, the existing warning devices assembled on the various products all have a single function in use and cannot be used for multi-functions, so that one warning device can only cooperate with a single product.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a warning device disposed on a top of an umbrella to solve the problem that the existing warning devices only have a single function.
To achieve the above objective, a warning device disposed on a top of an umbrella in accordance with the present invention comprises a base, an LED unit and a transparent cap.
The base is formed in a lower end thereof with an accommodation space flexibly expanding downwards, on an upper end of the base is formed an outer threaded portion, and in a top surface of the upper end of the base is formed a concave space for placement of the LED unit.
The transparent cap is formed in a lower end thereof with an inner threaded hole to be screwed with the outer threaded portion of the base, a concave portion is formed upwards from the inner threaded hole, and the transparent cap is formed with plural protrusions on an upper end thereof.
Further, the accommodation space is axially formed on an inner surface thereof with plural spaced flanges which offer an anti-slip function when a protruding portion at the top end of the umbrella is inserted into the accommodation space.
Further, the base is pre-formed with a hole for installation of a ring. With the above structure, the warning device of the present invention is mounted on the protruding portion at the top end of the umbrella through the accommodation space in the base thereof, so that the LED unit can be turned on to flash intermittently for offering a safety warning function. In addition, when the umbrella which is assembled with the warning device of the present invention on the top end thereof is used as a crutch, the plural protruding portions on the transparent cap can offer an anti-slip function with respect to the ground, Hence, it can be found that the warning device disposed on the top of the umbrella can offer multi-functions.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded view of a warning device disposed on a top of an umbrella in accordance with the present invention;
FIG. 2 is a schematic view showing that the warning device in accordance with the present invention is disposed on the top end of the umbrella;
FIG. 3 is a cross-sectional view showing that the warning device in accordance with the present invention is disposed on the top of the umbrella;
FIG. 4 is a schematic view showing that the warning device in accordance with the present invention is disposed on the top of the umbrella to offer an anti-slip function with respect to the group;
FIG. 5 is a cross-sectional view showing that the warning device in accordance with the present invention is pre-formed with a hole for insertion of a ring; and
FIG. 6 is a schematic view showing that the warning device in accordance with the present invention is used as an illuminating device.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.
Referring to FIG. 1, a warning device 4 assembled on an umbrella 5 in accordance with the present invention comprises a base 1, an LED (light-emitting diode) unit 2, and a transparent cap 3.
The base 1 is formed in a lower end thereof with an accommodation space 11 flexibly expanding downwards (as shown in FIG. 2). The accommodation space 11 is axially formed on inner surface thereof with plural spaced flanges 12. The base 1 is formed with an outer threaded portion 13 on an upper end thereof. In a top surface of the upper end of the base 1 is formed a concave space 14.
The LED unit 2 is an illuminating element to be assembled in the concave space 14 in the upper end of the base 1. As shown in FIG. 2, at a bottom of the LED unit 2 are assembled dry batteries 21 for supplying power to the LED unit 2.
The transparent cap 3 is formed in a lower end thereof with an inner threaded hole 31 to be screwed with the outer threaded portion 13 of the base 1 (as shown in FIG. 1). The transparent cap 3 is further formed with a concave portion 32 from the inner threaded hole 31 upwards. On an upper end of the transparent cap 3 are formed plural protrusions 33.
Referring to FIGS. 1 and 3 which show how the base 1, the LED unit 2 and the transparent cap 3 are assembled, the LED unit 2 is smoothly placed in the space 14 in the upper end of the base 1 and supported against by the circumference of the space 14 of the base 1 first, and then the transparent cap 3 will be screwed on the outer threaded portion 13 of the base 1 through the inner threaded hole 31 in such a manner that the LED unit 2 is clamped between the base and the transparent cap 3 with its illuminating end being located in the concave portion 32 of the transparent cap 3, thus finishing the assembly of the warning device 4.
As shown in FIGS. 2 and 3, the warning device 4 is assembled on the umbrella 5 in such a manner that a protruding portion 51 on the top end of the umbrella 5 is inserted into the accommodation space 11 in the lower end of the base 1 and brought into an anti-slip contact with the plural spaced flanges 12 formed on the inner surface of the accommodation space 11. Hence, when the umbrella 5 is used at night, the LED unit 2 of the warning device 4 will be turned on to flash intermittently, offering a safety warning function.
In addition, as shown in FIG. 4, when the umbrella 5 the top end of which is assembled with the warning device 4 is used as a crutch, the frictional force between the umbrella 5 and the ground 6 will be greatly enhanced due to the plural protruding portions 33 formed on the transparent cap 3 of the warning device 4, thus offering an anti-slip function. Hence, the umbrella 5 can be used as the crutch with high safety.
As shown in FIG. 5, the warning device 4 can also be disassembled from the umbrella 5 and used as a normal illuminating device in an independent form, and the base 1 is further equipped in a pre-formed hole 15 thereof with a ring 7. In such a case, when at night or the sight is dim, the LED unit 2 of the warning device 4 will be turned on to emit light continuously for illumination.
To summarize, the warning device in accordance with the present invention has the following advantages:
- 1. The warning device can serve as a night safety warning device when being assembled on the top end of the umbrella to.
- 2. The warning device can offer an anti-slip function through the protruding portions on an end thereof when the umbrella on which the warning device is assembled is used as a crutch.
- 3. The accommodation space formed in the base of the warning device is applicable to different specifications of protruding portions at the top ends of different umbrellas.
- 4. After being disassembled from the top end of the umbrella, the warning device has the advantages of easy operation and convenient to carry and can serve as a normal illuminating device, so that the warning device can offer multi-functions in use.
While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Patent Application
20110194275
