CN210348031U

CN210348031U - Flashlight focusing device convenient for focusing and heat dissipation

Info

Publication number: CN210348031U
Application number: CN201921766154.6U
Authority: CN
Inventors: 吴富昌
Original assignee: Wlaser Technology Guangzhou Co ltd
Current assignee: Wlaser Technology Guangzhou Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-04-17
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a torch focusing device convenient to focusing and heat dissipation, the light source passes through the light source installed part and is connected with the barrel casing, install the jump ring on the front end outer wall of barrel casing, be equipped with the annular draw-in groove of circle on the rear end inner wall of head casing, in the draw-in groove was arranged in to the jump ring, be equipped with the internal thread on the middle section inner wall of head casing, the lens installed part is equipped with the external screw thread for tube-shape and its outer wall, through internal thread and external screw thread connection between head casing and the lens installed part, but can not rotate by the back-and-. The utility model discloses directly being connected head shell and barrel casing through jump ring and draw-in groove, making the head shell rotate and can not the back-and-forth movement on the barrel casing, rotatory head shell can drive lens installed part and lens back-and-forth movement, realizes the focusing function, has simplified the structure and does not influence the focusing function, has reduced the torch volume, and light source and barrel casing lug connection have good radiating effect simultaneously.

Description

Flashlight focusing device convenient for focusing and heat dissipation

Technical Field

The utility model relates to a torch focusing device especially relates to a torch focusing device convenient to focusing and heat dissipation.

Background

With the miniaturization of batteries and bulbs, the flashlight is also developing toward miniaturization, and the realization of various functions and the heat dissipation treatment of the flashlight are more and more important and difficult, wherein the focusing function and the heat dissipation effect are important technical indexes.

The traditional focusing structure of torch mainly has two kinds, one kind is that the lens of fixed head is motionless, rotates the focusing swivel in the middle of, removes to stir inside light source back-and-forth movement, and changes the distance between light source and the lens, realizes the focusing function, and the drawback of this kind of focusing structure is: the light source is not connected with the shell, the heat dissipation effect is poor, the large-power flashlight is not facilitated to be manufactured, meanwhile, the focusing swivel occupies space, and the size of the flashlight is increased; another kind of focusing structure is that fixed light source puts at inside central point, is in the same place with the shell connection, is favorable to the heat dissipation, and fixed torch head simultaneously through rotating the focusing swivel, goes to stir lens firmware back-and-forth movement, and changes the focus of light, focuses on, and the drawback of this kind of focusing structure is: the structure is complicated, the accessory is many, and focusing swivel occupation space has increased the torch volume.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flashlight focusing device that the structure is succinct, small and be convenient for focusing and heat dissipation in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a flashlight focusing device convenient for focusing and heat dissipation comprises a barrel shell, a head shell, a light source mounting piece, a lens and a lens mounting piece, wherein the rear end of the head shell is mounted at the front end of the barrel shell, the light source is connected with the inner wall of the front section of the barrel shell through the light source mounting piece, the lens is connected with the inner wall of the rear section of the head shell through the lens mounting piece, a clamp spring is mounted on the outer wall of the front end of the barrel shell, an annular clamping groove is formed in the inner wall of the rear end of the head shell, the clamp spring is arranged in the clamping groove to enable the head shell to rotate on the barrel shell but not move back and forth, an internal thread is formed in the inner wall of the middle section of the head shell, the lens mounting piece is cylindrical, an external thread is formed in the outer wall of the lens mounting, the light source mounting member and the lens mounting member are movable back and forth but not rotatable.

Preferably, for the convenience of processing, equipment and have stable direction function, be equipped with guide way or sand grip on the outer wall of light source installed part, be equipped with sand grip or guide way on the inner wall of lens installed part, light source installed part with place in through the sand grip between the lens installed part realize connecting in the guide way.

Specifically, the lens is a concave lens, a convex lens or a biconvex lens, and the lens is one or more.

Further, a flat glass lens, a convex lens or a biconvex lens is mounted at the front end of the head housing.

Specifically, the light source is an LED lamp, a laser lamp or an HID lamp, and the light source is one or more. The HID lamp is a short term for a high-pressure gas discharge lamp, and generally comprises a high-pressure package, a ballast (ballast), and a bulb.

The beneficial effects of the utility model reside in that:

the utility model discloses directly be connected head shell and barrel casing through jump ring and draw-in groove, make the head shell can rotate and can not the back-and-forth movement on the barrel casing, utilize the threaded connection structure between head shell and the lens installed part, realize that rotatory head shell drives the function of lens installed part and lens back-and-forth movement, from realizing the focusing function, the focusing swivel of traditional torch has been saved, the structure is simplified and the focusing function is not influenced, the torch volume has been reduced, light source and barrel casing lug connection simultaneously, good radiating effect has, thereby realize a plurality of optimization functions.

Drawings

FIG. 1 is a sectional view of the flashlight focusing device of the present invention prior to assembly, with the middle and rear sections of the barrel housing and the tail cap omitted;

FIG. 2 is a sectional view of the assembled flashlight focusing device convenient for focusing and heat dissipation, wherein the middle and rear sections and the tail cover of the shell of the flashlight are omitted.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in figures 1 and 2, the flashlight focusing device convenient for focusing and heat dissipation of the utility model comprises a barrel shell 1, a head shell 9, a light source 4, a light source mounting piece 3, a lens 7 and a lens mounting piece 5, wherein the rear end (left end in the figure) of the head shell 9 is arranged at the front end (right end in the figure) of the barrel shell 1, the light source 4 is connected with the inner wall of the front section of the barrel shell 1 through the light source mounting piece 3, the lens 7 is connected with the inner wall of the rear section of the head shell 9 through the lens mounting piece 5, a snap spring 2 is arranged on the outer wall of the front end of the barrel shell 1, a circular ring-shaped clamping groove 8 is arranged on the inner wall of the rear end of the head shell 9, the snap spring 2 is arranged in the clamping groove 8 to enable the head shell 9 to rotate on the barrel shell 1 but not move back and forth, an, head shell 9 and lens installed part 5 are connected through internal thread 10 and external screw thread 6 between, are equipped with guide way or sand grip on the outer wall of light source installed part 3, are equipped with sand grip or guide way on the inner wall of lens installed part 5, pass through between light source installed part 3 and the lens installed part 5 the sand grip is arranged in the guide way realizes being connected, but this structure makes the back-and-forth movement but can not rotate between light source installed part 3 and the lens installed part 5. The lens 7 is a concave lens, a convex lens or a biconvex lens according to the requirement of practical application, and one or more lenses 7 are provided; a plane glass lens, a convex lens or a biconvex lens is arranged at the front end of the head shell 9; the light source 4 is an LED lamp, a laser lamp or an HID lamp, and the light source 4 is one or more.

As shown in fig. 1 and 2, when in use, the head housing 9 is rotated clockwise or counterclockwise as required to drive the lens mounting member 5 and the lens 7 to move forward or backward, so as to increase or decrease the distance between the lens 7 and the light source 4 and achieve the purpose of adjusting the focal length; the light source 4 is connected with the cylinder shell 1 through the light source mounting part 3 all the time, so that the heat dissipation effect is good, and the service lives of the light source 4 and the whole flashlight can be prolonged.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. A flashlight focusing device convenient for focusing and heat dissipation comprises a barrel shell, a head shell, a light source mounting piece, a lens and a lens mounting piece, wherein the rear end of the head shell is mounted at the front end of the barrel shell, the light source is connected with the inner wall of the front section of the barrel shell through the light source mounting piece, the lens is connected with the inner wall of the rear section of the head shell through the lens mounting piece, and the flashlight focusing device is characterized in that: the head part mounting piece is characterized in that a clamp spring is mounted on the outer wall of the front end of the barrel shell, an annular clamping groove is formed in the inner wall of the rear end of the head part shell, the clamp spring is arranged in the clamping groove, so that the head part shell can rotate on the barrel shell but cannot move back and forth, internal threads are formed in the inner wall of the middle section of the head part shell, the lens mounting piece is cylindrical, external threads are formed in the outer wall of the lens mounting piece, the head part shell is connected with the lens mounting piece through the internal threads, and the light source mounting piece and the lens mounting piece can move back and.

2. An electrical flashlight focusing means for facilitating focusing and heat dissipation as claimed in claim 1, wherein: be equipped with guide way or sand grip on the outer wall of light source installed part, be equipped with sand grip or guide way on the inner wall of lens installed part, light source installed part with pass through between the lens installed part the sand grip is arranged in realize connecting in the guide way.

3. An electrical flashlight focusing means for facilitating focusing and heat dissipation as claimed in claim 1 or claim 2 wherein: the lens is a concave lens, a convex lens or a biconvex lens, and the number of the lenses is one or more.

4. An electrical flashlight focusing means for facilitating focusing and heat dissipation as claimed in claim 1 or claim 2 wherein: the front end of the head shell is provided with a plane glass lens, a convex lens or a biconvex lens.

5. An electrical flashlight focusing means for facilitating focusing and heat dissipation as claimed in claim 1 or claim 2 wherein: the light source is an LED lamp, a laser lamp or an HID lamp, and the number of the light sources is one or more.