A flashlight tamper-proof structure for preventing a lamp cover fastened to an end of a flashlight from being unfastened manually includes an appropriate section of an end of an opening of a body of the flashlight extending to form a carrying portion; an internal thread section penetrating a front end of the carrying portion; a hole formed at a corresponding point of a rear end of the carrying portion, to allow a screw to be inserted into the carrying portion and screwed to the internal thread section with a tool; and concave indentations formed at the periphery of the opening of the lamp cover fastened to the end of the opening of the body of the flashlight The screw screwed to the internal thread section is moved forward with the tool to reach the concave indentations.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention provides a flashlight tamper-proof structure including an appropriate section of an end of an opening of a body of a flashlight capable of illumination extending to form a carrying portion; a screw inserted and screwed to an internal thread section of the front end; and a plurality of concave indentations formed at the periphery of the opening of the lamp cover fastened to the end of the opening of the body of the flashlight. The screw screwed to the internal thread section of the front end of the carrying portion on one side of the body of the flashlight can be moved forward with the tool to reach the concave indentations at the periphery of the lamp cover. Accordingly, the lamp cover fastened to an end of the flashlight cannot be unfastened manually.

2. Description of Related Art

A conventional flashlight capable of illumination has to meet a safety standard (UL) that a lamp cover of the flashlight cannot be manually unfastened but can only be unfastened with a tool. To this end, related manufacturers put forth a flashlight essentially comprising a flashlight body and a lamp cover which are tightly engaged with each other when put together or are integrally formed as a unitary structure, such that a user needs a tool to separate the flashlight body and the lamp cover in order to change a light bulb therein or has to dismount from or mount on the other end of the flashlight body an object.

Therefore, it imperative to provide a flashlight tamper-proof structure for preventing a lamp cover from being unfastened without a tool.

SUMMARY OF THE INVENTION

The present invention provides a flashlight tamper-proof structure for preventing a lamp cover fastened to a front end of an illumination-oriented flashlight from being unfastened manually. The flashlight tamper-proof structure includes an appropriate section of an end of an opening of a body of a flashlight extending to form a carrying portion to allow a screw to be inserted into the opening and screwed to an internal thread section penetrating the front end; and a plurality of concave indentations formed at the periphery of the opening of the lamp cover fastened to the end of the opening of the body of the flashlight. The screw screwed to the front end of the carrying portion on one side of the body of the flashlight can be moved forward to reach the concave indentations at the periphery of the lamp cover. Accordingly, the lamp cover fastened to an end of the flashlight cannot be unfastened manually.

The first objective of the present invention is to prevent a lamp cover fastened to an end of a flashlight from being unfastened manually. The present invention includes an appropriate section of an end of an opening of a body of a flashlight extending to form a carrying portion; an internal thread section penetrating a front end of the carrying portion; a hole formed at a corresponding point of a rear end of the carrying portion, to allow a screw to be inserted into the carrying portion and screwed to the internal thread section of the front end with a tool; and a plurality of concave indentations formed at the periphery of the opening of the lamp cover fastened to the end of the opening of the body of the flashlight. The screw screwed to the front end of the carrying portion on one side of the body of the flashlight can be moved forward with the tool to reach the concave indentations at the periphery of the lamp cover. Accordingly, the lamp cover fastened to an end of the flashlight cannot be unfastened manually.

The second objective of the present invention is that the internal thread section penetrating the front end of the carrying portion formed by extending an appropriate section of an end of an opening of a body of a flashlight can be implemented by a nut embedded at the front end of the carrying portion.

The third objective of the present invention is that the carrying portion formed by extending an appropriate section of an end of an opening of a body of a flashlight forms a channel-shaped container opening at the top thereof to allow the screw screwed to the internal thread section at the front end of the carrying portion to fall into between the carrying portion after the screw has been unfastened, such that the screw can be conveniently screwed again at any time and moved forward to reach the concave indentations at an end of the lamp cover.

The fourth objective of the present invention is that the diameter of a hole at a rear end of the carrying portion formed by extending an appropriate section of an end of an opening of a body of a flashlight permits admission of an end of a conventional tool for use in fastening the screw.

DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION

Referring toFIG. 1, the present invention provides a flashlight tamper-proof structure for preventing a lamp cover2fastened to an end of an opening of a body1of a flashlight3from being unfastened manually. The flashlight tamper-proof structure essentially comprises the body1and the lamp cover2.

The body1has therein a space for receiving a power-supplying battery. A power switch11is disposed at the periphery of one side of the body1and is adapted to control the ON/OFF of a flashlight lamp. A security switch12is pivotally disposed at a predetermined segment of the power switch11at the body1and is adapted to be movably pushed in or moved out for controllably pushing the power switch11into a laterally-positioned recess portion111whenever the power switch11is not in use to thereby prevent the power switch11from being wrongly turned on. An end of the opening of the body1extends to form an external thread section13for fastening the lamp cover2. An appropriate section of the end of the opening of the body1extends to form a carrying portion14. In this embodiment, the carrying portion14is provided in the form of a channel-shaped container that opens at the top thereof. An internal thread section141penetrates the front end of the carrying portion14, and the internal thread section141penetrating the front end of the carrying portion is implemented by a nut15embedded at the front end of the carrying portion14. A hole142is formed at a corresponding point of a rear end of the carrying portion14, to allow a screw4to be inserted into the carrying portion14. The screw4is screwed to the internal thread section141of the front end with a tool5, and the diameter of the hole142at the rear end of the carrying portion14permits admission of an end of the tool5for use in fastening the screw4.

The coverage of the flashlight lamp by the lamp cover2depends on the external thread section13extending from an end of the opening of the body1. An internal thread section21is formed inside the lamp cover2. A plurality of concave indentations22is formed at the periphery of the opening of the lamp cover2. The internal thread section21and the concave indentations22at the opening of the lamp cover2can be implemented together in the form of an element, such that the element and the lamp cover2are integrally formed as a unitary structure by bagging.

Referring toFIG. 1andFIG. 2, there are shown diagrams of the fastening together of the body1and the lamp cover2.

Step1: fastening the lamp cover2to the external thread section13at an end of the opening of the body1. Step2: positioning the screw4between the carrying portion14on one side of the body1, and guiding, with the tool5(in the form of a screwdriver), the screw4into the hole142at the rear end of the carrying portion14. The screw4is screwed to the internal thread section141at the front end to thereby allow the screw4to move forward to reach the concave indentations22at the periphery of the lamp cover2(seeFIG. 3andFIG. 4). Accordingly, the lamp cover2fastened to an end of the body1of the flashlight cannot be unfastened manually.

Unfastening the lamp cover2which is otherwise fastened to an end of the opening of the body1entails: unscrewing the screw4from the front end of the carrying portion14on one side of the body1by use of the tool5, such that the screw4is released from the concave indentations22at the periphery of the opening of the lamp cover2. The screw4thus loosened can fall into between the carrying portion14, thereby allowing the screw4to be conveniently screwed again at any time and moved forward to reach the concave indentations22at the end of the lamp cover2. Accordingly, the flashlight tamper-proof structure meets a safety standard (UL) of flashlight products that a lamp cover of a flashlight cannot be unfastened without a tool.