Flashlight and its telescopic tube structure
A technology of telescopic tube and flashlight, which is applied in the field of hand-held lighting devices, can solve the problems of inconvenient carrying and inconvenient use, and achieve the effects of convenient use and carrying, increasing the overall length, and reducing the overall length
Inactive Publication Date: 2016-05-18
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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Problems solved by technology
[0002] The flashlight is a common hand-held lighting device in daily life, which brings a lot of convenience to people in daily life, but the traditional flashlight has a fixed length, and some flashlights are longer, which is very convenient to use, but not easy to carry Portable; some flashlights are short and easy to carry around, but they are inconvenient to use
Method used
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[0047] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0048] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes ...
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A telescopic cylinder structure of a flashlight comprises a shell, a tail cap, a rotary cylinder and a positioning component, the shell comprises a lamp head shell and a battery cylinder communicated with the lamp head shell, and first outer threads and a first concave portion near the lamp head shell end of the first outer threads are arranged in the outer side wall of the battery cylinder. The opening end of the tail cap is in threaded connection with one end, far away from the lamp head shell, of the battery cylinder, second outer threads and a second concave portion near the sealed end of second outer threads are arranged in the outer wall of the tail cap, and the first outer threads are aligned to the second outer threads, and the first outer threads and the second outer threads form an integral threaded portion. Inner threads matched with the first outer threads and the second outer threads are formed in the inner side wall of the rotary cylinder, and the positioning component can be movably arranged on the rotary cylinder in a penetrating mode, and can be clamped at a first concave portion and a second concave portion in a selective mode. The rotary cylinder of the flashlight can be contracted when the flashlight is carried with a user, and can be extended when the flashlight is used. The invention further provides a flashlight with the telescopic cylinder structure, integrated length of the flashlight can be reduced through contraction of the rotary cylinder when the flashlight is carried with the user, and the integrated length of the flashlight can be increased through extending of the rotary cylinder when the flashlight is used, and therefore the flashlight is convenient to use and carry.
Description
【Technical field】 [0001] The invention relates to a hand-held lighting device, in particular to a flashlight and its telescopic tube structure. 【Background technique】 [0002] The flashlight is a common hand-held lighting device in daily life, which brings a lot of convenience to people in daily life, but the traditional flashlight has a fixed length, and some flashlights are longer, which is very convenient to use, but not easy to carry Portable; Some flashlights are short and easy to carry around, but they are inconvenient to use. 【Content of invention】 [0003] In view of the above situation, it is necessary to provide a flashlight and its telescopic tube structure which are more convenient to use and carry. A telescopic tube structure for a flashlight, comprising: [0004] The outer casing includes a lamp cap and a battery barrel connected to the lamp cap. The outer wall of the battery barrel is provided with a first external thread and a first recess, and the first ...
Claims
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IPC IPC(8): F21L4/00F21V21/22
Inventor 周明杰张磊
Owner OCEANS KING LIGHTING SCI&TECH CO LTD