CN109578834A - A kind of flashlight with waterproof drop resistant function - Google Patents

A kind of flashlight with waterproof drop resistant function Download PDF

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Publication number
CN109578834A
CN109578834A CN201910057045.5A CN201910057045A CN109578834A CN 109578834 A CN109578834 A CN 109578834A CN 201910057045 A CN201910057045 A CN 201910057045A CN 109578834 A CN109578834 A CN 109578834A
Authority
CN
China
Prior art keywords
fixedly installed
flashlight
shell
battery
drop resistant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910057045.5A
Other languages
Chinese (zh)
Inventor
郑金元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Ao Sida Electro-Optical Technology Inc (us) 62 Martin Road Concord Massachusetts 017
Original Assignee
Ningbo Ao Sida Electro-Optical Technology Inc (us) 62 Martin Road Concord Massachusetts 017
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Ao Sida Electro-Optical Technology Inc (us) 62 Martin Road Concord Massachusetts 017 filed Critical Ningbo Ao Sida Electro-Optical Technology Inc (us) 62 Martin Road Concord Massachusetts 017
Priority to CN201910057045.5A priority Critical patent/CN109578834A/en
Publication of CN109578834A publication Critical patent/CN109578834A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21LLIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00Electric lighting devices with self-contained electric batteries or cells
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00Protecting lighting devices from damage
    • F21V15/04Resilient mountings, e.g. shock absorbers 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00Gas-tight or water-tight arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The present invention relates to flashlight technical fields, and disclosing a kind of includes shell, partition is fixedly installed at the top of the shell, lampshade is fixedly installed at the top of the partition, the top of the partition and be located at lampshade inside be fixedly installed with light bulb, it is fixedly installed with sheet glass inside the lampshade and at the top of light bulb, the inside of the shell is fixedly installed with damping spring, and the damping spring is fixedly installed with vibration damper plate far from one end of housing interior side-wall.The flashlight with waterproof drop resistant function, by installing the installation of damping spring and vibration damper plate inside the housing, when flashlight is dropped, damping spring is compressed, absorb energy caused by extraneous hit, to achieve the purpose that flashlight drop resistant, by the setting of foam-rubber cushion, flashlight inner body damaged in collision is prevented, drop resistant is achieved the effect that, when can also accidentally enter a small amount of water inside flashlight, plays the role of water suction, achieved the purpose that waterproof.

Description

A kind of flashlight with waterproof drop resistant function
Technical field
The present invention relates to flashlight technical field, specially a kind of flashlight with waterproof drop resistant function.
Background technique
Flashlight, abbreviation torch is a kind of hand-held electronic illuminations, a typical flashlight have one via electricity Battery-powered light bulb and focusing mirror, and have for hand-held hand-held handle type shell, although fairly simple design, it is always It is just invented to 19th-century latter stage late, because it must be in conjunction with the invention of battery and bulb, in early stage because of the storage of battery Electric power is insufficient, therefore it is referred to as " Flashlight " in English, implies that of short duration lamp.
Flashlight is easy to use as daily life or the necessary article in field, but general flashlight is all at present Do not have waterproof drop resistant function, cause into water or after dropping, flashlight cannot normal use, so propose that one kind has The flashlight of waterproof drop resistant function solves the problems, such as above-mentioned propose.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of flashlight with waterproof drop resistant function, has waterproof drop resistant The advantages that, it solves current general flashlight and does not have waterproof drop resistant function, cause into water or after dropping, flashlight is just The problem of being unable to normal use.
(2) technical solution
To realize above-mentioned waterproof drop resistant purpose, the invention provides the following technical scheme: a kind of includes shell, the top of the shell It is fixedly installed with partition, lampshade, the top of the partition and the fixation inside lampshade are fixedly installed at the top of the partition Light bulb is installed, inside the lampshade and is located at the top of light bulb and is fixedly installed with sheet glass, the inside of the shell is fixedly mounted There is damping spring, the damping spring is fixedly installed with vibration damper plate far from one end of housing interior side-wall, and the vibration damper plate is opposite Side is fixedly installed with foam-rubber cushion, and the outer casing bottom offers battery case, is fixedly installed with battery inside the battery case, The top of the battery is fixedly mounted live wire, inside the battery case and is located at battery bottom and is movably installed with battery cover, institute It states outer casing bottom and is located on the left of battery cover and be fixedly installed with switch button, the outer casing bottom and be located at solid on the outside of switch button Dingan County is equipped with rear closure attachment means, and the rear closure attachment means internal activity is equipped with connecting column, and the connection column bottom is fixed Rear cover is installed, on the outside of the connecting column and is located at the top of rear cover and is fixedly installed with seal washer.
Preferably, the shell is set as the cylinder of top surface missing and boring, and rear closure attachment means are set as bottom surface The cylinder of missing and boring, and rear closure attachment means inner sidewall is provided with connection screw thread.
Preferably, the damping spring is provided with 60, and 60 damping springs are evenly distributed on shell in a ring Inner sidewall.
Preferably, the vibration damper plate be set as a top surface and bottom surface missing and boring cuboid, vibration damper plate with 60 damping springs are fixedly connected, and foam-rubber cushion is mounted on the inner sidewall of vibration damper plate.
Preferably, the one end of the electric wire far from battery is connect through partition with light bulb, the size and battery case of battery cover Size be adapted.
Preferably, the connecting column is set as the cylinder of top surface missing and boring, is provided with connection on the outside of connecting column Screw thread, and connecting column is threadedly coupled with rear closure attachment means.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of flashlight with waterproof drop resistant function, have it is following the utility model has the advantages that
1, the flashlight with waterproof drop resistant function, by installing the installation of damping spring and vibration damper plate inside the housing, When flashlight is dropped, damping spring is compressed, and energy caused by extraneous hit is absorbed, to reach the mesh of flashlight drop resistant , by the setting of foam-rubber cushion, flashlight inner body damaged in collision is prevented, has achieved the effect that drop resistant, it also can be in flashlight When inside accidentally enters a small amount of water, play the role of water suction, achievees the purpose that waterproof.
2, flashlight with waterproof drop resistant function, by the way that switch button to be mounted on to the bottom of shell, then by rear cover Attachment device and connecting column are threadedly coupled, and are played the role of switch button is closed, it is therefore prevented that switch button is contacted with water, is led to The setting for crossing seal washer connects rear closure attachment means with connecting column even closer, has achieved the purpose that waterproof, passed through partition With the setting of battery cover, electric wire and battery are separated with the external world, achieved the purpose that waterproof.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is rear cover schematic diagram of the present invention.
In figure: 1 shell, 2 partitions, 3 lampshades, 4 light bulbs, 5 sheet glass, 6 damping springs, 7 vibration damper plates, 8 foam-rubber cushions, 9 batteries Closure attachment means, 15 connecting columns, 16 rear covers, 17 gaskets behind slot, 10 batteries, 11 electric wires, 12 battery covers, 13 switch buttons, 14 Circle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
A kind of referring to FIG. 1-2, includes shell 1, and the top of shell 1 is fixedly installed with partition 2, and the top of partition 2 is fixed Lampshade 3 is installed, the top of partition 2 and is located inside lampshade 3 and is fixedly installed with light bulb 4,3 inside of lampshade and is located at light bulb 4 and pushes up Portion is fixedly installed with sheet glass 5, and the inside of shell 1 is fixedly installed with damping spring 6, and damping spring 6 is provided with 60, and six Ten damping springs 6 are evenly distributed on the inner sidewall of shell 1 in a ring, and damping spring 6 is fixed far from one end of 1 inner sidewall of shell Vibration damper plate 7 is installed, the opposite side of vibration damper plate 7 is fixedly installed with foam-rubber cushion 8, and vibration damper plate 7 is set as a top surface and bottom The cuboid of face missing and boring, vibration damper plate 7 and 60 damping spring 6 is fixedly connected, and foam-rubber cushion 8 is mounted on damping The inner sidewall of plate 7, by being mounted on the installation of damping spring 6 and vibration damper plate 7 inside shell 1, when flashlight is dropped, damping Spring 6 is compressed, and is absorbed energy caused by extraneous hit to achieve the purpose that flashlight drop resistant and is passed through setting for foam-rubber cushion 8 It sets, prevents flashlight inner body damaged in collision, achieved the effect that drop resistant, a small amount of water can be also accidentally entered inside flashlight When, play the role of water suction, achieved the purpose that waterproof, 1 bottom of shell offers battery case 9, is fixedly mounted inside battery case 9 There is battery 10, live wire 11 is fixedly mounted in the top of battery 10, and the one end of electric wire 11 far from battery 10 is through partition 2 and light bulb 5 Connection, the size of battery cover 12 are adapted with the size of battery case 9, inside battery case 9 and are located at 10 bottom activity of battery installation There is a battery cover 12,1 bottom of shell and be located on the left of battery cover 12 and be fixedly installed with switch button 13,1 bottom of shell and being located at is opened It closes and is fixedly installed with rear closure attachment means 14 on the outside of button 13, shell 1 is set as the cylinder of top surface missing and boring, rear cover Attachment device 14 is set as the cylinder of bottom surface missing and boring, and rear 14 inner sidewall of closure attachment means is provided with connection spiral shell Line, rear 14 internal activity of closure attachment means are equipped with connecting column 15, and connecting column 15 is set as the circle of top surface missing and boring Column is provided with connection screw thread on the outside of connecting column 15, and connecting column 15 is threadedly coupled with rear closure attachment means 14,15 bottom of connecting column It is fixedly installed with rear cover 16,15 outside of connecting column and is located at the top of rear cover 16 and is fixedly installed with seal washer 17, by that will switch Button 13 is mounted on the bottom of shell 1, then rear closure attachment means 14 and connecting column 15 are threadedly coupled, and plays switch button 13 closed effects, it is therefore prevented that switch button 13 is contacted with water, by the setting of seal washer 17, makes rear 14 He of closure attachment means Connecting column 15 connects even closer, has achieved the purpose that waterproof, by the setting of partition 2 and battery cover 12, by electric wire 11 and electricity Pond 10 is separated with the external world, has achieved the purpose that waterproof.
When in use, unscrew rear cover 16, press switch button 13, be loaded on rear cover 16, flashlight can waterproof work, beat Open battery cover 12, i.e. replaceable battery 10.
In conclusion this has the flashlight of waterproof drop resistant function, by be mounted on the damping spring 6 inside shell 1 with The installation of vibration damper plate 7, when flashlight is dropped, damping spring 6 is compressed, and energy caused by extraneous hit is absorbed, to reach Flashlight inner body damaged in collision is prevented, drop resistant has been reached by the setting of foam-rubber cushion 8 to the purpose of flashlight drop resistant Effect plays the role of water suction, has achieved the purpose that waterproof when can also accidentally enter a small amount of water inside flashlight.
Also, by the bottom that switch button 13 is mounted on to shell 1, then by 15 spiral shell of rear closure attachment means 14 and connecting column Line connection, plays the role of switch button 13 is closed, it is therefore prevented that switch button 13 is contacted with water, passes through seal washer 17 Setting, connects rear closure attachment means 14 and connecting column 15 even closer, has achieved the purpose that waterproof, passed through partition 2 and battery Electric wire 11 and battery 10 are separated with the external world, have achieved the purpose that waterproof by the setting of lid 12, solve current general flashlight Do not have waterproof drop resistant function, cause into water or after dropping, flashlight cannot normal use the problem of.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device. In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element Process, method, article or equipment in there is also other identical elements.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (6)

1. a kind of flashlight with waterproof drop resistant function, including shell (1), it is characterised in that: the top of the shell (1) is solid Dingan County is equipped with partition (2), is fixedly installed with lampshade (3) at the top of the partition (2), the top of the partition (2) and is located at lamp It is fixedly installed with light bulb (4) inside cover (3), the lampshade (3) is internal and is fixedly installed with sheet glass at the top of light bulb (4) (5), the inside of the shell (1) is fixedly installed with damping spring (6), and the damping spring (6) is far from shell (1) inner sidewall One end is fixedly installed with vibration damper plate (7), and two opposite sides of the vibration damper plate (7) are fixedly installed with foam-rubber cushion (8), described Shell (1) bottom offers battery case (9), is fixedly installed with battery (10) inside the battery case (9), the battery (10) Live wire (11) are fixedly mounted in top, and the battery case (9) is internal and is movably installed with battery cover positioned at battery (10) bottom (12), shell (1) bottom and be located at battery cover (12) on the left of be fixedly installed with switch button (13), shell (1) bottom Portion and being located on the outside of switch button (13) is fixedly installed with rear closure attachment means (14), living inside closure attachment means (14) after described Dynamic to be equipped with connecting column (15), connecting column (15) bottom is fixedly installed with rear cover (16), on the outside of the connecting column (15) and Seal washer (17) are fixedly installed at the top of rear cover (16).
2. a kind of flashlight with waterproof drop resistant function according to claim 1, it is characterised in that: the shell (1) It is set as the cylinder of top surface missing and boring, rear closure attachment means (14) are set as the circle of bottom surface missing and boring Column, and rear closure attachment means (14) inner sidewall is provided with connection screw thread.
3. a kind of flashlight with waterproof drop resistant function according to claim 1, it is characterised in that: the damping spring (6) 60 are provided with, and 60 damping springs (6) are evenly distributed on the inner sidewall of shell (1) in a ring.
4. a kind of flashlight with waterproof drop resistant function according to claim 1, it is characterised in that: the vibration damper plate (7) it is set as the cuboid an of top surface and bottom surface missing and boring, vibration damper plate (7) is solid with 60 damping springs (6) Fixed connection, and foam-rubber cushion (8) is mounted on the inner sidewall of vibration damper plate (7).
5. a kind of flashlight with waterproof drop resistant function according to claim 1, it is characterised in that: the electric wire (11) One end far from battery (10) is connect through partition (2) with light bulb (5), the size of battery cover (12) and the size of battery case (9) It is adapted.
6. a kind of flashlight with waterproof drop resistant function according to claim 1, it is characterised in that: the connecting column (15) it is set as the cylinder of top surface missing and boring, is provided with connection screw thread, and connecting column (15) on the outside of connecting column (15) It is threadedly coupled with rear closure attachment means (14).
CN201910057045.5A 2019-01-22 2019-01-22 A kind of flashlight with waterproof drop resistant function Pending CN109578834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910057045.5A CN109578834A (en) 2019-01-22 2019-01-22 A kind of flashlight with waterproof drop resistant function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910057045.5A CN109578834A (en) 2019-01-22 2019-01-22 A kind of flashlight with waterproof drop resistant function

Publications (1)

Publication Number Publication Date
CN109578834A true CN109578834A (en) 2019-04-05

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111503556A (en) * 2020-04-23 2020-08-07 江苏舒适照明有限公司 Spotlight structure
CN113357556A (en) * 2021-06-18 2021-09-07 北京三极户外用品有限公司 Intelligent flashlight for railway system
US11466821B2 (en) 2019-12-31 2022-10-11 Jiangsu Sur Lighting Co., Ltd. Lamp module group
US11598517B2 (en) 2019-12-31 2023-03-07 Lumien Enterprise, Inc. Electronic module group

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203395615U (en) * 2013-07-30 2014-01-15 黄凤娇 Anti-crashing flashlight
CN205979304U (en) * 2016-08-04 2017-02-22 深圳市康铭盛科技实业股份有限公司 High lamps and lanterns of security
CN206696605U (en) * 2017-04-18 2017-12-01 施祖德 A kind of wrist-watch of drop resistant
CN107768568A (en) * 2017-10-17 2018-03-06 安徽天鹅科技实业(集团)有限公司 A kind of anticollision shock-absorbing type battery supply shell
CN207191747U (en) * 2017-05-17 2018-04-06 象山杰尔德智能科技有限公司 A kind of handware storage box for being easy to classification
CN208217454U (en) * 2018-04-19 2018-12-11 东莞市青洋包装制品有限公司 A kind of Anti-seismic cosmetic packaging box
CN208222124U (en) * 2018-03-05 2018-12-11 深圳市金霸科技有限公司 A kind of flashlight with tail portion water proof switch
CN209725894U (en) * 2019-01-22 2019-12-03 宁波奥斯达光电科技有限公司 A kind of flashlight with waterproof drop resistant function

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203395615U (en) * 2013-07-30 2014-01-15 黄凤娇 Anti-crashing flashlight
CN205979304U (en) * 2016-08-04 2017-02-22 深圳市康铭盛科技实业股份有限公司 High lamps and lanterns of security
CN206696605U (en) * 2017-04-18 2017-12-01 施祖德 A kind of wrist-watch of drop resistant
CN207191747U (en) * 2017-05-17 2018-04-06 象山杰尔德智能科技有限公司 A kind of handware storage box for being easy to classification
CN107768568A (en) * 2017-10-17 2018-03-06 安徽天鹅科技实业(集团)有限公司 A kind of anticollision shock-absorbing type battery supply shell
CN208222124U (en) * 2018-03-05 2018-12-11 深圳市金霸科技有限公司 A kind of flashlight with tail portion water proof switch
CN208217454U (en) * 2018-04-19 2018-12-11 东莞市青洋包装制品有限公司 A kind of Anti-seismic cosmetic packaging box
CN209725894U (en) * 2019-01-22 2019-12-03 宁波奥斯达光电科技有限公司 A kind of flashlight with waterproof drop resistant function

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11466821B2 (en) 2019-12-31 2022-10-11 Jiangsu Sur Lighting Co., Ltd. Lamp module group
US11598517B2 (en) 2019-12-31 2023-03-07 Lumien Enterprise, Inc. Electronic module group
US11959601B2 (en) 2019-12-31 2024-04-16 Lumien Enterprise, Inc. Lamp module group
US12018828B2 (en) 2019-12-31 2024-06-25 Lumien Enterprise, Inc. Electronic module group
CN111503556A (en) * 2020-04-23 2020-08-07 江苏舒适照明有限公司 Spotlight structure
US11421837B2 (en) 2020-04-23 2022-08-23 Jiangsu Sur Lighting Co., Ltd. Spotlight structure
CN113357556A (en) * 2021-06-18 2021-09-07 北京三极户外用品有限公司 Intelligent flashlight for railway system

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