CN104676260A - Flashlight - Google Patents
Flashlight Download PDFInfo
- Publication number
- CN104676260A CN104676260A CN201310625984.8A CN201310625984A CN104676260A CN 104676260 A CN104676260 A CN 104676260A CN 201310625984 A CN201310625984 A CN 201310625984A CN 104676260 A CN104676260 A CN 104676260A
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- CN
- China
- Prior art keywords
- light source
- air spring
- tail
- host cavity
- source assembly
- Prior art date
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Abstract
A flashlight comprises a flashlight tube, a light source component, a lens, an air spring, a tail cover and an adjusting button; the flashlight tube is hollowed to form a holding chamber; openings are formed at the front end and the rear end of the flashlight tube and communicated with the holding chamber; the light source component comprises a light source and a fixing plate; the light source is fixed on the fixing plate; the air spring is arranged in the flashlight tube and located at the rear end of the light source component; the piston rod of the air spring is connected with the fixing plate of the light source component and is used for driving the light source component to move axially in the holding chamber; the tail cover is fixed at the tail end of the flashlight tube; the air spring is fixed on the tail cover which is used for fixing the air spring in the holding chamber; an adjusting hole is formed on the tail cover; the adjusting button is inserted into the adjusting hole of the tail cover and is connected with the air spring to adjust the stretched length of the piston rod of the air spring, so that the distance between the light source component and the lens is adjusted. The position of the light source component is changed by stretching/retracting the piston rod of the air spring, so that the adjusting of a focal length is realized and the illuminating position is changed.
Description
Technical field
The present invention relates to lighting, particularly relate to torch.
Background technology
The focus of the light source of existing torch is all generally fixing, and focal length can not change.The torch of this fixed focal length, needs the effect utilizing the movement of people to realize illumination.Operate and extremely bother, and be inconvenient to the occasion of movement operating personnel, the torch of prior art is difficult to meet lighting demand.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency overcoming the existence of above-mentioned prior art, and proposes a kind of torch, and this torch can carry out the adjustment of focal length, thus changes the position of illumination.
For solving the problems of the technologies described above, the present invention proposes a kind of torch, and described torch comprises: lamp cylinder, described lamp cylinder hollow forms host cavity, and the front end of described lamp cylinder is communicated with described host cavity with the equal opening of tail end; Light source assembly, described light source assembly comprises light source and fixed head, and described light source is fixed on described fixed head, and described light source is towards the front opening of described lamp cylinder, and described fixed head can drive described light source to move vertically in described host cavity; Lens, described lens are positioned at described lamp cylinder, and are fixed on the front end of described light source assembly, in order to focus on the light that described light source assembly is launched; Air spring, described air spring is positioned at described lamp cylinder, and is positioned at the rear end of described light source assembly, and the piston rod of described air spring connects the fixed head of described light source assembly, moves vertically at described host cavity in order to drive described light source assembly; Tail-hood, it is fixedly connected with the tail end of described lamp cylinder, and described air spring is fixed on described tail-hood, and described tail-hood, in order to be fixed on by air spring in described host cavity, described tail-hood has adjustment hole; Adjusting knob, the described adjustment hole by described tail-hood inserts and connects described air spring, in order to regulate the extension elongation of the piston rod of air spring, thus regulates the spacing between described light source assembly and described lens.
Preferably, the light source of light source assembly is LED.
Preferably, described LED is fixed in the side of fixed head, and the opposite side of described fixed head is provided with cylindrical wall, and described cylindrical wall and described fixed head form cylindrical groove, and the piston rod of described air spring inserts in described cylindrical groove and is fixedly connected with described fixed head.
Preferably, the edge of fixed head extends back formation sidewall, and described sidewall is in order to fixing described light source assembly.
Preferably, the post jamb that tail-hood comprises base portion and extended to form to the same side by described base portion, described adjustment hole is positioned on described base portion, described post jamb has internal thread, the lateral wall of the tail end of described lamp cylinder has the external screw thread matched, and described tail-hood is fixed on the tail end of described lamp cylinder by screw thread.
Preferably, the base portion of tail-hood has two installing holes, the afterbody of described air spring has two mounting grooves, and the afterbody of described air spring is fixed on the base portion of described tail-hood by described installing hole and described mounting groove by screw.
Preferably, adjusting knob is knob.
Preferably, torch also comprises gland, and the front opening of described lamp cylinder is provided with external screw thread, described gland has the internal thread matched, and described gland screws on the front opening of described lamp cylinder in order to compress described lens.
Preferably, torch also comprises reflector, and the light source of described light source assembly is positioned at the bottom of described reflector, the corresponding described lens of opening of described reflector.
Preferably, host cavity comprises front host cavity and rear host cavity, and the diameter of described front host cavity is greater than rear host cavity, and described light source assembly is positioned at described front host cavity, and described air spring is positioned at described rear host cavity.
Compared with prior art, the present invention has following beneficial effect: the present invention by the flexible position changing light source assembly of the piston rod of air spring, thus realizes the adjustment of focal length, changes the position of illumination.
Accompanying drawing explanation
Fig. 1 is the explosive view of torch of the present invention.
Fig. 2 is the sectional view of torch of the present invention.
Wherein, description of reference numerals is as follows: lamp cylinder 1, host cavity 11, rear host cavity 12, light source assembly 2, light source 21, fixed head 22, cylindrical wall 23, sidewall 24, air spring 3, mounting groove 31, tail-hood 4, base portion 41, post jamb 42, adjustment hole 411, installing hole 412, adjusting knob 5, lens 6, gland 7, reflector 8, screw 9.
Detailed description of the invention
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Refer to Fig. 1 and Fig. 2, the invention provides a kind of torch, described torch comprises lamp cylinder 1, light source assembly 2, air spring 3, tail-hood 4, adjusting knob 5, lens 6, gland 7 and reflector 8.
Lamp cylinder 1, described lamp cylinder 1 hollow forms host cavity, and the front end of described lamp cylinder 1 is communicated with described host cavity with the equal opening of tail end.In the present embodiment, host cavity comprises front host cavity 11 and rear host cavity 12, and the diameter of described front host cavity 11 is greater than rear host cavity 12, and described light source assembly 2 is positioned at described front host cavity 11, and described air spring 3 is positioned at described rear host cavity 12.In other embodiments, according to actual installation mode, or before and after the change of assembly, the diameter of host cavity also can change, and can be greater than front host cavity 11 by host cavity 12 later, also can be identical.
Light source assembly 2, described light source assembly 2 comprises light source 21 and fixed head 22, described light source 21 is fixed on described fixed head 22, and described light source 21 is towards the front opening of described lamp cylinder 1, and described fixed head 22 can drive described light source 21 to move vertically in described host cavity.The effect of fixed head 22 is facilitate light source 21 in lamp cylinder 1 fixing.In the present embodiment, light source 21 is LED.In other embodiments, the type of light source 21 can need change according to illumination, such as small filament lamp bubble etc.In the present embodiment, described LED is fixed in the side of described fixed head 22, the opposite side of described fixed head 22 is provided with cylindrical wall 23, and described cylindrical wall 23 forms cylindrical groove with described fixed head 22, and the piston rod of described air spring 3 inserts in described cylindrical groove and is fixedly connected with described fixed head 22.The effect of cylindrical wall 23 facilitates the piston rod of air spring 3 to be connected with fixed head.In other embodiments, cylindrical wall 23 can be set as required yet, or adopt other modes, such as, slot on fixed head 22, in the piston rod insertion groove of air spring 3, be connected and fixed plate 22.In the present embodiment, the edge of fixed head 22 extends back and forms sidewall 24, and described sidewall 24 is in order to fixing described light source assembly 2.Sidewall 24 is conveniently fixing in lamp cylinder 1 of light source assembly 2, compares and relies on separately fixed head 22 to be fixed, have adequate thickness in the axial direction so more can ensure to stablize due to sidewall 24.
Air spring 3, described air spring 3 is positioned at described lamp cylinder 1, and is positioned at the rear end of described light source assembly 2, and the piston rod of described air spring 3 connects the fixed head 22 of described light source assembly 2, moves vertically at described host cavity in order to drive described light source assembly 2.The effect of air spring 3 is the positions by changing light source assembly 2, realizes the focusing of light source 21.
Tail-hood 4, it is fixedly connected with the tail end of described lamp cylinder 1, and described air spring 3 is fixed on described tail-hood 4, and described tail-hood 4, in order to be fixed in described host cavity by air spring 3, described tail-hood 4 has adjustment hole 411.In the present embodiment, the post jamb 42 that tail-hood 4 comprises base portion 41 and extended to form to the same side by described base portion 41, described adjustment hole 411 is positioned on described base portion 41, described post jamb 42 has internal thread, the lateral wall of the tail end of described lamp cylinder 1 has the external screw thread matched, and described tail-hood 4 is fixed on the tail end of described lamp cylinder 1 by screw thread.The effect of tail-hood 4 is from rear fixed air spring 3, avoids air spring 3 to be released by reaction force when exerting a force to light source assembly 2.In other embodiments, the fixed form of bonnet 4 also can be various, such as, by screw, bonding or buckle etc. mode.In the present embodiment, the base portion 41 of described tail-hood 4 has two installing holes 412, the afterbody of described air spring 3 has two mounting grooves 31, and the afterbody of described air spring 3 is fixed on the base portion 41 of described tail-hood 4 by described installing hole 412 and described mounting groove 31 by screw 9.In other embodiments, also can adopt other fixed form, such as, by bonding or draw-in groove etc. mode.
Adjusting knob 5, the described adjustment hole 411 by described tail-hood 4 inserts and connects described air spring 3, in order to regulate the extension elongation of the piston rod of air spring 3, thus regulates the spacing between described light source assembly 2 and described lens 6.In the present embodiment, adjusting knob 5 is knob, and knob screws in and the piston rod of air spring 3 is stretched out, knob screws out and the piston rod of air spring 3 is shunk, in other embodiments, adjusting knob 5 can adopt alternate manner to regulate air spring 3, such as button-pressing way or pull bar mode etc.
Lens 6 are positioned at described lamp cylinder 1, and are positioned at the front end of described light source assembly 2, in order to focus on the light that described light source assembly 2 is launched.
Gland 7, the front opening of described lamp cylinder 1 is provided with external screw thread, and described gland 7 has the internal thread matched, and described gland 7 screws on the front opening of described lamp cylinder 1 in order to compress described lens 6.
Reflector 8, the light source 21 of described light source assembly 2 is positioned at the bottom of described reflector 8, the corresponding described lens 6 of opening of described reflector 8.The effect of reflector 8 is that the light of light source 21 is pooled a direction.
Operation principle of the present invention is described in detail below for the present embodiment.
When torch normally works, the light source 21 of light source assembly 2 is luminous, and light converges in via reflector 8 to be launched through lens 6.
When needs adjusting focal length, screw in or screw out adjusting knob 5, thus causing the piston rod of air spring 3 stretch out or bounce back, the position of light source 21 relative lens 6 of light source assembly 2 being changed, focal length is changed, thus changing the position of illumination.
In sum, the present invention by the flexible position changing light source assembly of the piston rod of air spring, thus realizes the adjustment of focal length, changes the position of illumination.
The foregoing is only better possible embodiments of the present invention, not limit the scope of the invention, all utilizations description of the present invention and the change of the equivalent structure done by accompanying drawing content, be all included in protection scope of the present invention.
Claims (10)
1. a torch, is characterized in that, described torch comprises:
Lamp cylinder, described lamp cylinder hollow forms host cavity, and the front end of described lamp cylinder is communicated with described host cavity with the equal opening of tail end;
Light source assembly, described light source assembly comprises light source and fixed head, and described light source is fixed on described fixed head, and described light source is towards the front opening of described lamp cylinder, and described fixed head can drive described light source to move vertically in described host cavity;
Lens, described lens are positioned at described lamp cylinder, and are fixed on the front end of described light source assembly, in order to focus on the light that described light source assembly is launched;
Air spring, described air spring is positioned at described lamp cylinder, and is positioned at the rear end of described light source assembly, and the piston rod of described air spring connects the fixed head of described light source assembly, moves vertically at described host cavity in order to drive described light source assembly;
Tail-hood, it is fixedly connected with the tail end of described lamp cylinder, and described air spring is fixed on described tail-hood, and described tail-hood, in order to be fixed on by air spring in described host cavity, described tail-hood has adjustment hole;
Adjusting knob, the described adjustment hole by described tail-hood inserts and connects described air spring, in order to regulate the extension elongation of the piston rod of air spring, thus regulates the spacing between described light source assembly and described lens.
2. torch according to claim 1, is characterized in that, the light source of described light source assembly is LED.
3. torch according to claim 2, it is characterized in that, described LED is fixed in the side of described fixed head, the opposite side of described fixed head is provided with cylindrical wall, described cylindrical wall and described fixed head form cylindrical groove, and the piston rod of described air spring inserts in described cylindrical groove and is fixedly connected with described fixed head.
4. torch according to claim 3, is characterized in that, the edge of described fixed head extends back formation sidewall, and described sidewall is in order to fixing described light source assembly.
5. torch according to claim 1, it is characterized in that, the post jamb that described tail-hood comprises base portion and extended to form to the same side by described base portion, described adjustment hole is positioned on described base portion, described post jamb has internal thread, the lateral wall of the tail end of described lamp cylinder has the external screw thread matched, and described tail-hood is fixed on the tail end of described lamp cylinder by screw thread.
6. torch according to claim 4, it is characterized in that, the base portion of described tail-hood has two installing holes, the afterbody of described air spring has two mounting grooves, and the afterbody of described air spring is fixed on the base portion of described tail-hood by described installing hole and described mounting groove by screw.
7. torch according to claim 1, is characterized in that, described adjusting knob is knob.
8. torch according to claim 1, it is characterized in that, described torch also comprises gland, and the front opening of described lamp cylinder is provided with external screw thread, described gland has the internal thread matched, described gland screws on the front opening of described lamp cylinder in order to compress described lens.
9. torch according to claim 8, is characterized in that, described torch also comprises reflector, and the light source of described light source assembly is positioned at the bottom of described reflector, the corresponding described lens of opening of described reflector.
10. torch according to claim 1, is characterized in that, described host cavity comprises front host cavity and rear host cavity, and the diameter of described front host cavity is greater than rear host cavity, and described light source assembly is positioned at described front host cavity, and described air spring is positioned at described rear host cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625984.8A CN104676260B (en) | 2013-11-29 | 2013-11-29 | A kind of torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625984.8A CN104676260B (en) | 2013-11-29 | 2013-11-29 | A kind of torch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104676260A true CN104676260A (en) | 2015-06-03 |
| CN104676260B CN104676260B (en) | 2019-03-08 |
Family
ID=53311675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310625984.8A Active CN104676260B (en) | 2013-11-29 | 2013-11-29 | A kind of torch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676260B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4577263A (en) * | 1984-09-06 | 1986-03-18 | Anthony Maglica | Miniature flashlight |
| CN1032853A (en) * | 1987-10-07 | 1989-05-10 | 马格仪器公司 | Tailcap switch-focus flashlight |
| CN1195746A (en) * | 1997-04-09 | 1998-10-14 | 萨斯派康巴特公司 | Adjustable length gas spring |
| CN202140979U (en) * | 2011-07-15 | 2012-02-08 | 欣新开发有限公司 | Inner zoom structure of lighting lamp |
| CN102767794A (en) * | 2012-07-30 | 2012-11-07 | 王建春 | Automatic lamp focusing structure and flashlight with same |
-
2013
- 2013-11-29 CN CN201310625984.8A patent/CN104676260B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4577263A (en) * | 1984-09-06 | 1986-03-18 | Anthony Maglica | Miniature flashlight |
| CN1032853A (en) * | 1987-10-07 | 1989-05-10 | 马格仪器公司 | Tailcap switch-focus flashlight |
| CN1195746A (en) * | 1997-04-09 | 1998-10-14 | 萨斯派康巴特公司 | Adjustable length gas spring |
| CN202140979U (en) * | 2011-07-15 | 2012-02-08 | 欣新开发有限公司 | Inner zoom structure of lighting lamp |
| CN102767794A (en) * | 2012-07-30 | 2012-11-07 | 王建春 | Automatic lamp focusing structure and flashlight with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104676260B (en) | 2019-03-08 |
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