CN103174945A - Flashlight and telescopic cylinder structure thereof - Google Patents
Flashlight and telescopic cylinder structure thereof Download PDFInfo
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- CN103174945A CN103174945A CN2011104305363A CN201110430536A CN103174945A CN 103174945 A CN103174945 A CN 103174945A CN 2011104305363 A CN2011104305363 A CN 2011104305363A CN 201110430536 A CN201110430536 A CN 201110430536A CN 103174945 A CN103174945 A CN 103174945A
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- slide
- hood
- shell
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Abstract
A telescopic cylinder structure of a flashlight comprises a shell, a tail cap, a first pull cylinder and a second pull cylinder, the shell comprises a lamp head shell and a battery cylinder communicated with the lamp head shell. The tail cap comprises an opening end and a seal end opposite to the opening end, and the opening end is in threaded connection with the end, far away from the lamp head shell, of the battery cylinder. Two ends of the first pull cylinder are opened and can be arranged on the shell and the tail cap in a sleeved mode. Two ends of the second cylinder are opened and can be sleeved on the first cylinder in a sliding mode. The first pull cylinder and the second pull cylinder of the flashlight can be contracted when the flashlight is carried with a user, and can be extended when the flashlight is used, and therefore the flashlight is enabled to be convenient to use and carry. The invention further provides a flashlight with the telescopic cylinder structure.
Description
[technical field]
The present invention relates to a kind of hand-held lighting device, particularly relate to a kind of flashlight and retracting cylinder structure thereof.
[background technology]
Flashlight is hand-held lighting device common in a kind of daily life, and it has brought many facilities to people in daily life, but traditional flashlight all length fix, some flashlights are longer, and are very convenient in use, but are not easy to carry; Some flashlights are shorter, are convenient to carry, but use inconvenience.
[summary of the invention]
In view of above-mentioned condition, be necessary to provide a kind of use and carry all flashlight and retracting cylinder structure thereof comparatively easily.A kind of retracting cylinder structure of flashlight comprises:
Shell, comprise lamp head shell and the battery sleeve that is communicated with described lamp head shell, the lateral wall of described battery sleeve is provided with along the axially extended shell guide part of described battery sleeve and along described battery sleeve and circumferentially extends and be positioned at described battery sleeve near the shell holding section of described lamp head shell one end;
Tail-hood, have openend and the blind end relative with described openend, described openend is connected with the threaded one end of described battery sleeve away from described lamp head shell, the outer wall of described blind end is provided with the tail-hood holding section along the circumferential extension of described tail-hood, the outer wall of described tail-hood is provided with along its axially extended tail-hood guide part, after described tail-hood was installed to described battery sleeve, described shell guide part and described tail-hood guide part were arranged point-blank;
The first slide, its both ends open also is sheathed on described shell and tail-hood slidably, the inwall of described the first slide is provided with along its axially extended the first sliding part and is positioned at described the first slide near described lamp head shell one end and along its first auxiliary section of circumferentially extending, and the outer wall of described the first slide is provided with the first holding section of laying respectively at two ends and the second holding section, and along the axially extended slide guide part of described the first slide; Described the first sliding part with respect to described shell guide part and tail-hood guide part slidably, optionally one of them holds mutually with described shell holding section and tail-hood holding section in described the first auxiliary section; And
The second slide, its both ends open also is sheathed on described the first slide slidably, the inwall of described the second slide is provided with along its axially extended the second sliding part and is positioned at described the second slide near described lamp head shell one end and along its second auxiliary section of circumferentially extending, described the second sliding part with respect to described slide guide part slidably, optionally one of them holds mutually with described the first holding section and the second holding section in described the second auxiliary section.
Further, described shell holding section is for protruding from described battery sleeve outer wall and tool snap ring jaggy, described tail-hood holding section is the snap ring that protrudes from described tail-hood outer wall, sealing, and described the first auxiliary section is to be formed at described the first slide inwall and the slot of the annular that holds with the snap ring alternative of the snap ring of described shell and tail-hood.
Further, described shell guide part is for protruding the first guide rail of described battery sleeve outer wall, described the first guide rail extends to the other end and passes the breach of described shell holding section from an end of described battery sleeve outer wall, described tail-hood guide part is the second guide rail that protrudes from described tail-hood outer wall, and described the first sliding part is to be opened in described the first slide inwall and along described the first guide rail, the second guide rail chute of thin-and-long slidably.
Further, the inwall of described the first slide is provided with the first boss that extends axially and be positioned at the breach of described shell holding section along it, and described the first sliding part is opened on described the first boss.
Further, described the first holding section is for protruding from described the first slide outer wall and tool snap ring jaggy, described the second holding section is for protruding the snap ring of described the first slide outer wall, sealing, described the second auxiliary section is to be formed at described the second slide inwall and the slot of the annular that holds with two snap ring alternatives on described the first slide, when the first auxiliary section and described shell holding section held mutually, described the second holding section was corresponding with the position of described tail-hood holding section.
Further, described slide guide part is for being convexly set in described the first slide outer wall and along its axially extended the 3rd guide rail, and described the second sliding part is the extending axially and with respect to described the 3rd guide rail chute slidably along described the second slide of inwall that is opened in described the second slide.
Further, the inwall of described the second slide is provided with along its axially extended the second boss, and described the second sliding part is opened on described the second boss.
Further, described the second holding section annular flange flange that is the end of described the first slide.
Further, described battery sleeve is provided with external screw thread away from an end of described lamp head shell, and the openend of described tail-hood is provided with the internal thread that coordinates with the external screw thread of described battery sleeve.
A kind of flashlight comprises:
As above-mentioned every described retracting cylinder structure;
Lamp holder removably is fixed in described lamp head shell; And
Battery is contained in described battery sleeve; And
Tailstock, be contained in described tail-hood and with described battery butt.
The first sliding part of the first slide of above-mentioned flashlight can slide with respect to shell guide part and the tail-hood guide part of shell, so that the first slide can stably stretch with respect to shell, simultaneously the first auxiliary section of the first slide can optionally hold with the tail-hood holding section of the shell holding section of shell or tail-hood, realizes the accurate limiting of the first slide; And, the second sliding part of the second sleeve with respect to the slide guide part of the first slide slidably, so that the second slide can stably stretch with respect to the first slide, the second auxiliary section of the second slide can optionally hold with the first holding section or second holding section of the first slide simultaneously, realizes the accurate limiting of the second slide.Therefore, the first slide and second slide of above-mentioned flashlight are collapsible when carrying, and extensiblely in use out and not deviate from, so that above-mentioned flashlight uses and carries all more for convenience.
[description of drawings]
Fig. 1 is the stereogram of the flashlight of better embodiment of the present invention;
Fig. 2 is the exploded view of flashlight shown in Figure 1;
Fig. 3 is the stereogram of the shell of flashlight shown in Figure 1;
Fig. 4 is along the cutaway view of IV-IV line in Fig. 3;
Fig. 5 is along the cutaway view of V-V line in Fig. 3;
Fig. 6 is the stereogram of the tail-hood of flashlight shown in Figure 1;
Fig. 7 is along the cutaway view of VII-VII line in Fig. 6;
Fig. 8 is along the cutaway view of VIII-VIII line in Fig. 6;
Fig. 9 is the stereogram of the first slide of flashlight shown in Figure 1;
Figure 10 is along the cutaway view of X-X line in Fig. 9;
Figure 11 is along the cutaway view of XI-XI line in Fig. 9;
Figure 12 is the stereogram of the second slide of flashlight shown in Figure 1;
Figure 13 is along the cutaway view of XIII-XIII line in Figure 12;
Figure 14 is along the cutaway view of XIV-XIV line in Figure 12;
Figure 15 is along the cutaway view of XV-XV line in Fig. 1;
Figure 16 is along the cutaway view of XVI-XVI line in Fig. 1.
[specific embodiment]
For the ease of understanding the present invention, the below is described more fully the present invention with reference to relevant drawings.Provided preferred embodiment of the present invention in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the purpose of these embodiment be make the understanding of disclosure of the present invention more comprehensively thorough.
Need to prove, when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may have simultaneously centering elements.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology of using of this paper and scientific terminology are with to belong to the implication that those skilled in the art of the present invention understand usually identical.The term that uses in specification of the present invention herein is not intended to be restriction the present invention just in order to describe the purpose of specific embodiment.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
See also Fig. 1 and Fig. 2, a kind of flashlight 100 comprises retracting cylinder structure (figure is mark not), lamp holder 150, battery 160 and tailstock 170.Lamp holder 150, battery 160 and tailstock 170 all are contained in the retracting cylinder structure.
The retracting cylinder structure comprises shell 110, tail-hood 120, the first slide 130 and the second slide 140.
See also Fig. 3, Fig. 4 and Fig. 5, shell 110 comprises lamp head shell 111 and battery sleeve 113.Battery sleeve 113 is fixedly connected with lamp head shell 111, and is interconnected.The lateral wall of battery sleeve 113 is provided with shell holding section 1132 and shell guide part 1134.Circumferentially extend along battery sleeve 113 shell holding section 1132, and be positioned at battery sleeve 113 near lamp head shell 111 1 ends.Shell guide part 1134 extends axially along battery sleeve 113.Specifically in the present embodiment, shell holding section 1132 is for protruding battery sleeve 113 outer walls and tool snap ring jaggy.Shell guide part 1134 is for protruding the first guide rail of battery sleeve 113 outer walls, and guide rail extends to the other end and passes the breach of shell holding section 1132 from an end of battery sleeve 113 outer walls.The cross section of snap ring and guide rail can be circular arc, ellipse arc, V-arrangement etc.
See also Fig. 6, Fig. 7 and Fig. 8, tail-hood 120 has openend and the blind end relative with openend.Openend is connected with the threaded one end of battery sleeve 113 away from lamp head shell 111, and is concrete, and battery sleeve 113 is provided with external screw thread away from an end of lamp head shell 111, and the blind end of tail-hood 120 is provided with the internal thread that coordinates with the external screw thread of battery sleeve 113.The outer wall of tail-hood 120 is provided with along its axially extended tail-hood guide part 121, and after tail-hood 120 was installed to battery sleeve 113, the shell guide part 1134 of shell 110 was arranged point-blank with tail-hood guide part 121.The outer wall of the blind end of tail-hood 120 is provided with along the tail-hood holding section 123 of circumferentially extending.Specifically in the present embodiment, tail-hood holding section 123 is for protruding the snap rings of tail-hood 120 outer walls and sealing, and tail-hood guide part 121 is for protruding the second guide rail of tail-hood 120 outer walls.The cross section of snap ring and guide rail can be circular arc, ellipse arc, V-arrangement etc.
See also Fig. 9, Figure 10 and Figure 11, the first slide 130 both ends opens, and be sheathed on slidably on shell 110 and tail-hood 120.The inwall of the first slide 130 is provided with the first sliding part 131 and the first auxiliary section 133.The first sliding part 131 extending axially along the first slide 130.The first auxiliary section 133 is positioned at the first slide 130 near an end of lamp head shells 111, and along the circumferential extension of the first slide 130.The outer wall of the first slide 130 is provided with the first holding section 135 near lamp head shell 111 1 ends, the second holding section 137 of close tail-hood 120 1 ends, and slide guide part 139.Slide guide part 139 extends axially along the first slide.The first sliding part 131 with respect to the shell guide part 1134 of shell 110 and tail-hood guide part 121 slidably, optionally one of them holds mutually with the tail-hood holding section 123 of the shell holding section 1132 of shell 110 and tail-hood 120 in the first auxiliary section 133.The tail-hood holding section 123 of the shell holding section 1132 of the first auxiliary section 133 and shell 110 and tail-hood 120 can be interference fit or elasticity engages.When the first auxiliary section 133 held mutually with shell holding section 1132, the second holding section 137 was corresponding with tail-hood holding section 123.Specifically in the present embodiment, the first sliding part 131 is for being opened in the first slide 130 inwalls and along the guide rail chute of thin-and-long slidably.The first auxiliary section 133 is the slot of the annular that is opened in the first slide 130 inwalls and can holds with snap ring.The shape of cross section of the shape of chute cross section and shell guide part 1134 and tail-hood guide part 121 is complementary, for example, and circular arc, ellipse arc, V-arrangement etc.The shape of cross section of the shape of slot and shell holding section 1132 and tail-hood holding section 123 is complementary, for example, and circular arc, ellipse arc, V-arrangement etc.The first holding section 135 is for protruding the first slide 130 outer walls and tool snap ring jaggy, and the second holding section 137 is for protruding the snap ring of the first slide 130 outer walls and sealing.Slide guide part 139 is for protruding the 3rd guide rail of the first slide 130 outer walls.The cross section of two snap rings and guide rail can be circular arc, ellipse arc, V-arrangement etc.
Further, the inwall of the first slide 130 is provided with along the first slide 130 and extends axially and be opened on the first boss 134 corresponding to the first boss 134, the first sliding parts 131 of the breach of the first holding section 135.The second holding section 137 is the collar flange of the end of the first slide 130.The first slide 130 is provided with tool the first annular boss 136, the first auxiliary sections 133 jaggy near the inwall of lamp head shell 111 1 ends and is opened on the first annular boss 136.
See also Figure 12, Figure 13 and Figure 14, the both ends open of the second slide 140, and be sheathed on slidably on the first slide 130.The inwall of the second slide 140 is provided with the second sliding part 141 and the second auxiliary section 143.The second sliding part 141 extends axially along the second slide 140.The second auxiliary section 143 is positioned at the second slide 140 1 ends, and along its circumferential extension.The second sliding part 141 with respect to the slide guide part 139 of the first slide 130 slidably.Optionally one of them holds mutually with the first holding section 135 of the first slide 130 and the second holding section 137 in the second auxiliary section 143.The first holding section 135 of the second auxiliary section 143 and the first slide 130 and the second holding section 137 interference fit or elasticity engage.Specifically in the present embodiment, the second sliding part 141 extending axially and with respect to guide rail chute slidably along the second slide 140 for the inwall that is opened in the second slide 140.The cross section of the slide guide part 139 of the shape of the cross section of chute and the first slide 130 is complementary, for example, and circular arc, ellipse arc, V-arrangement etc.The second auxiliary section 143 is the slot of the annular that is formed at the second slide 140 inwalls and can holds with snap ring.The first holding section 135 of the shape of slot and the first slide 130 and the shape of cross section of the second holding section 137 are complementary, for example, and circular arc, ellipse arc, V-arrangement etc.
Further, the inwall of the second slide 140 is provided with along axially extended the second boss 142, the second sliding parts 141 of the second slide 140 and is opened on the second boss 142.The inwall of the second slide 140 is provided with along its second annular boss 144, the second auxiliary sections 143 of circumferentially extending and is opened on the second annular boss 144.
Be appreciated that, shell holding section 1132 and tail-hood holding section 123 are not limited to snap ring, the first auxiliary section 133 is not limited to connecting hole, also can be other structures, for example, shell holding section 1132 is for being opened in the draw-in groove on battery sleeve 113 outer walls, and tail-hood holding section 123 is for being opened in the connecting hole on tail-hood 120 outer walls, the elastic bumps of the first auxiliary section 133 for being located at the first slide 130 inwalls and can fastening with connecting hole.
The first holding section 135 and second holding section 137 of the first slide 130 are not limited to snap ring, the second auxiliary section 143 of the second slide 140 is not limited to draw-in groove, also can be other structures, for example, the first holding section 135 and the second holding section 137 are opened in the draw-in groove on the first slide 130 outer walls, the elastic bumps of the second auxiliary section 143 for being located at the second slide 140 inwalls and can fastening with connecting hole.
The slide guide part 139 of the first slide 130 is not limited to guide rail, the second sliding part 141 of the second slide 140 is not limited to chute, also can be other structures, for example, slide guide part 139 is for being opened in the first slide 130 outer walls and along the axially extended gathering sill of the first slide 130, and the second sliding part 141 is for being located at the second slide 140 inwalls and along gathering sill positive stop lug boss slidably.
See also Figure 15 and Figure 16, lamp holder 150 removably is fixed in the lamp head shell 111 of shell 110.Be provided with light source in lamp holder 111, such as LED module, miniature bulb etc.Battery 160 is contained in the battery sleeve 113 of shell 110.Battery 160 is roughly cylindrical, can be dry cell, secondary rechargeable battery etc.Tailstock 170 and battery 160 butts, and accommodate in tail-hood 120 with shell 110.
When flashlight 100 carried, the first slide 130 was contracted on shell 110 and tail-hood 120, and the shell holding section 1132 of the first auxiliary section 133 of the first slide 130 and shell 110 holds mutually; The second slide 140 is contracted on the first slide 130, and the second auxiliary section 143 of the second slide 140 holds mutually with the first holding section 135 of the first slide 130, and this moment, the length of flashlight 100 was shorter.
When flashlight 100 uses, the first sliding part 131 of the first slide 130 slide into along shell guide part 1134 and tail-hood guide part 121 from shell 110 and tail-hood 120 on, the tail-hood holding section 123 of the first auxiliary section 133 of the first slide 130 and tail-hood 120 holds mutually; The end of the second sliding part 141 of the second slide 140 along slide guide part 139 from the first slide 130 slides into the other end, the second auxiliary section 143 of the second slide 140 holds mutually with the second holding section 137 of the first slide 130, and this moment, the length of flashlight 100 was longer.
Be appreciated that, above-mentioned flashlight 100 is not limited to comprise that the first slide 130 and the second slide 140 reach, the length flexible when needs is larger, can increase the quantity of slide, for example, can increase a plurality of the first slides 130 and the second slide 140, and similar above-mentioned situation is socketed, to increase the collapsing length of retracting cylinder structure.
The first sliding part 131 of the first slide 130 of above-mentioned flashlight 100 can slide with respect to shell guide part 1134 and the tail-hood guide part 121 of shell, so that the first slide 130 can stably stretch with respect to shell 110, simultaneously the first auxiliary section 133 of the first slide 130 can optionally hold with the tail-hood holding section 123 of the shell holding section 1132 of shell or tail-hood, realizes the accurate limiting of the first slide 130; And, the second sliding part 141 of the second sleeve 140 with respect to the slide guide part 139 of the first slide 130 slidably, so that the second slide 140 can stably stretch with respect to the first slide 130, the second auxiliary section 143 of the second slide 140 can optionally hold with the first holding section 135 or second holding section 137 of the first slide 130 simultaneously, realizes the accurate limiting of the second slide 140.Therefore, the first slide 130 and second slide 140 of above-mentioned flashlight 100 are collapsible when carrying, and extensiblely in use out and not deviate from, so that above-mentioned flashlight 100 uses and carries all more for convenience.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the retracting cylinder structure of a flashlight, is characterized in that, comprising:
Shell, comprise lamp head shell and the battery sleeve that is communicated with described lamp head shell, the lateral wall of described battery sleeve is provided with along the axially extended shell guide part of described battery sleeve and along described battery sleeve and circumferentially extends and be positioned at described battery sleeve near the shell holding section of described lamp head shell one end;
Tail-hood, have openend and the blind end relative with described openend, described openend is connected with the threaded one end of described battery sleeve away from described lamp head shell, the outer wall of described blind end is provided with the tail-hood holding section along the circumferential extension of described tail-hood, the outer wall of described tail-hood is provided with along its axially extended tail-hood guide part, after described tail-hood was installed to described battery sleeve, described shell guide part and described tail-hood guide part were arranged point-blank;
The first slide, its both ends open also is sheathed on described shell and tail-hood slidably, the inwall of described the first slide is provided with along its axially extended the first sliding part and is positioned at described the first slide near described lamp head shell one end and along its first auxiliary section of circumferentially extending, and the outer wall of described the first slide is provided with the first holding section of laying respectively at two ends and the second holding section, and along the axially extended slide guide part of described the first slide; Described the first sliding part with respect to described shell guide part and tail-hood guide part slidably, optionally one of them holds mutually with described shell holding section and tail-hood holding section in described the first auxiliary section; And
The second slide, its both ends open also is sheathed on described the first slide slidably, the inwall of described the second slide is provided with along its axially extended the second sliding part and is positioned at described the second slide near described lamp head shell one end and along its second auxiliary section of circumferentially extending, described the second sliding part with respect to described slide guide part slidably, optionally one of them holds mutually with described the first holding section and the second holding section in described the second auxiliary section.
2. the retracting cylinder structure of flashlight as claimed in claim 1, it is characterized in that, described shell holding section is for protruding from described battery sleeve outer wall and tool snap ring jaggy, described tail-hood holding section is the snap ring that protrudes from described tail-hood outer wall, sealing, and described the first auxiliary section is to be formed at described the first slide inwall and the slot of the annular that holds with the snap ring alternative of the snap ring of described shell and tail-hood.
3. the retracting cylinder structure of flashlight as claimed in claim 2, it is characterized in that, described shell guide part is for protruding the first guide rail of described battery sleeve outer wall, described the first guide rail extends to the other end and passes the breach of described shell holding section from an end of described battery sleeve outer wall, described tail-hood guide part is the second guide rail that protrudes from described tail-hood outer wall, and described the first sliding part is to be opened in described the first slide inwall and along described the first guide rail, the second guide rail chute of thin-and-long slidably.
4. the retracting cylinder structure of flashlight as claimed in claim 3, is characterized in that, the inwall of described the first slide is provided with the first boss that extends axially and be positioned at the breach of described shell holding section along it, and described the first sliding part is opened on described the first boss.
5. the retracting cylinder structure of flashlight as claimed in claim 4, it is characterized in that, described the first holding section is for protruding from described the first slide outer wall and tool snap ring jaggy, described the second holding section is for protruding the snap ring of described the first slide outer wall, sealing, described the second auxiliary section is to be formed at described the second slide inwall and the slot of the annular that holds with two snap ring alternatives on described the first slide, when the first auxiliary section and described shell holding section held mutually, described the second holding section was corresponding with the position of described tail-hood holding section.
6. the retracting cylinder structure of flashlight as claimed in claim 5, it is characterized in that, described slide guide part is for being convexly set in described the first slide outer wall and along its axially extended the 3rd guide rail, and described the second sliding part is the extending axially and with respect to described the 3rd guide rail chute slidably along described the second slide of inwall that is opened in described the second slide.
7. the retracting cylinder structure of flashlight as claimed in claim 6, is characterized in that, the inwall of described the second slide is provided with along its axially extended the second boss, and described the second sliding part is opened on described the second boss.
8. the retracting cylinder structure of flashlight as claimed in claim 1, is characterized in that, described the second holding section is the annular flange flange of the end of described the first slide.
9. the retracting cylinder structure of flashlight as claimed in claim 1, is characterized in that, described battery sleeve is provided with external screw thread away from an end of described lamp head shell, and the openend of described tail-hood is provided with the internal thread that coordinates with the external screw thread of described battery sleeve.
10. a flashlight, is characterized in that, comprising:
Retracting cylinder structure as described in claim 1~9 any one;
Lamp holder removably is fixed in described lamp head shell;
Battery is contained in described battery sleeve; And
Tailstock, be contained in described tail-hood and with described battery butt.
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CN201110430536.3A CN103174945B (en) | 2011-12-20 | 2011-12-20 | Flashlight and retracting cylinder structure thereof |
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CN201110430536.3A CN103174945B (en) | 2011-12-20 | 2011-12-20 | Flashlight and retracting cylinder structure thereof |
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CN108758387A (en) * | 2018-04-16 | 2018-11-06 | 宁波市品诚照明科技有限公司 | One kind is embedded to be isolated Tri-proof light |
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CN106090695A (en) * | 2016-08-02 | 2016-11-09 | 任才银 | A kind of dual-purpose LED flashlight being easy to fix |
CN107606508A (en) * | 2017-10-31 | 2018-01-19 | 商洛市虎之翼科技有限公司 | A kind of flashlight |
CN107680856A (en) * | 2017-10-31 | 2018-02-09 | 商洛市虎之翼科技有限公司 | A kind of afterbody switch |
CN107965739A (en) * | 2017-11-20 | 2018-04-27 | 江门市泰坦尼照明电器有限公司 | A kind of LED telescopic lamps |
CN108758387A (en) * | 2018-04-16 | 2018-11-06 | 宁波市品诚照明科技有限公司 | One kind is embedded to be isolated Tri-proof light |
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