Waterproof flashlight

By incorporating multiple sealing structures and a one-piece molding design in the flashlight head and handle, the waterproofing problem of flashlights in harsh environments has been solved, achieving higher waterproofing performance and usage stability.

CN224175126UActive Publication Date: 2026-04-28ZHONGSHAN YASIDI LIGHTING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN YASIDI LIGHTING TECH CO LTD
Filing Date
2025-06-05
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing flashlights are not waterproof in harsh environments, especially the head and handle, which are prone to water seepage, leading to short circuits or lighting failure. In addition, their complex structure and the aging of sealing components affect their service life and make maintenance difficult.

Method used

It adopts a multi-seal structure, including a sealing ring at the lamp head and a composite ring-shaped seal at the handle, combined with a one-piece molded shell design, to enhance the overall waterproof effect.

Benefits of technology

It effectively prevents moisture and humidity from entering the housing from the front and sides, significantly improving the lifespan and stability of the flashlight in humid or harsh environments, and simplifying the assembly and maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof flashlight which comprises a flashlight shell, an installation front portion is arranged at the front end of the flashlight shell, a lamp cup installation groove is formed in the installation front portion, a reflecting lamp cup is installed in the lamp cup installation groove, a connecting ring portion is arranged at the front end of the installation front portion, and a fixing ring piece is connected to the outer side of the connecting ring portion. A sealing rubber ring is arranged between the reflector lamp cup and the fixing ring piece, a shell handle is arranged on the side portion of the flashlight shell, a handle cover covers the upper portion of the shell handle, a first waterproof ring is arranged on the upper edge of the shell handle, and a second waterproof ring is arranged on the lower edge of the handle cover. The second waterproof ring is sleeved on the outer side of the first waterproof ring to form annular sealing connection. By arranging multiple sealing structures on the lamp holder part and the handle part, water and moisture can be effectively prevented from entering the shell from the front and the side part, so that the overall waterproof effect is achieved, the service life of the flashlight in a humid or severe environment is remarkably prolonged, and the stability of the flashlight in the humid or severe environment is remarkably improved.
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Description

Technical Field

[0001] This utility model belongs to the field of flashlight technology, specifically relating to a waterproof flashlight. Background Technology

[0002] Flashlights, as portable lighting tools, are widely used in various scenarios such as daily life, outdoor activities, industrial operations, and emergency rescue. In complex and changing environments, especially in damp, rainy, muddy, or other harsh weather conditions, the waterproof performance of a flashlight becomes a crucial factor in its reliable use. While some waterproof flashlights exist on the market, most only use simple rubber ring seals at the flashlight head or battery compartment, failing to achieve multi-part, composite sealing. This results in limited waterproofing effectiveness and the continued existence of problems such as water ingress leading to short circuits or lighting malfunctions.

[0003] Furthermore, some existing flashlights have complex structures and cumbersome assembly processes, and their sealing components are prone to aging and loosening, which not only affects their waterproof performance but also increases maintenance difficulty and reduces their service life. In some products, the reflector structure in the lamp head lacks an effective sealing fit with the outer shell, allowing moisture to seep in from the front. At the same time, the side grip area of ​​the flashlight is also a weak point for moisture penetration; if the seal is not tight, it may also affect the safety of internal electronic components.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a waterproof flashlight to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waterproof flashlight, comprising a flashlight housing, a mounting front portion at the front end of the flashlight housing, a lamp reflector mounting groove inside the mounting front portion, a connecting ring portion at the front end of the mounting front portion, a fixing ring portion connected to the outer side of the connecting ring portion, a sealing ring between the lamp reflector and the fixing ring portion, a housing handle on the side of the flashlight housing, a handle cover on the upper part of the housing handle, a first waterproof ring on the upper edge of the housing handle, a second waterproof ring on the lower edge of the handle cover, and the second waterproof ring being fitted around the outer side of the first waterproof ring to form a ring-shaped sealing connection.

[0007] Furthermore, the second waterproof ring is larger than the first waterproof ring.

[0008] Furthermore, the front edge of the reflector cup is recessed with an annular rubber ring groove, the diameter of which is larger than the diameter of the sealing rubber ring, and the sealing rubber ring is embedded in the rubber ring groove.

[0009] Furthermore, the outer side of the connecting ring is provided with a first connecting thread, and the inner side of the fixing ring is provided with a second connecting thread that mates with it. The first connecting thread and the second connecting thread are connected by a threaded engagement, thereby making the fixing ring firmly installed on the outer side of the connecting ring. When the fixing ring is tightened to the position, it will apply axial pressure to the sealing ring embedded in the rubber ring groove, thereby making the sealing ring under pressure between the reflector cup and the fixing ring, achieving a tight fit and seal.

[0010] Furthermore, the handle of the outer casing is provided with a connecting post inside, and the handle cover is provided with a fixing post inside. The fixing post is connected to the connecting post and is fixed to the fixing post by fasteners passing through the connecting post.

[0011] Furthermore, the flashlight's outer shell is a one-piece molded structure.

[0012] Furthermore, a decorative ring is fitted onto the outer side of the fixing ring, and a first annular protrusion is provided on the front side of the fixing ring, and a second annular protrusion is provided on the rear side of the connecting ring. The decorative ring is disposed between the first annular protrusion and the second annular protrusion.

[0013] The present invention has the following advantages: The front part of the flashlight housing has an internal lamp holder mounting groove in which a reflector lamp holder is installed. The front end of the front part has an annular connecting ring, and a fixing ring is connected to the outer side of the connecting ring. A sealing ring is provided between the reflector lamp holder and the fixing ring. The side of the flashlight housing has a handle, and a handle cover is installed on the upper part of the handle. A first waterproof ring is provided on the upper edge of the handle, and a second waterproof ring is provided on the lower edge of the handle cover. The second waterproof ring is fitted over the outer side of the first waterproof ring to form a composite annular sealing structure. The waterproof flashlight of this invention, by setting multiple sealing structures at the lamp head and handle, can effectively prevent moisture and humidity from entering the housing from the front and sides, thereby achieving an overall waterproof effect and significantly improving the lifespan and stability of the flashlight in humid or harsh environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0016] Figure 3This is a schematic diagram of the handle cover structure of this utility model.

[0017] Reference numerals: Flashlight housing 10; Front mounting part 11; Lamp reflector mounting groove 111; Reflector 20; Connecting ring 112; Fixing ring 30; Sealing ring 40; Housing handle 12; Handle cover 13; First waterproof ring 121; Second waterproof ring 131; Rubber ring groove 21; First connecting thread 113; Second connecting thread 31; Connecting post 122; Fixing post 132; Decorative ring 50; First ring protrusion 32; Second ring protrusion 114. Detailed Implementation

[0018] like Figures 1 to 3 As shown, a waterproof flashlight includes a flashlight housing 10. The front end of the flashlight housing 10 has a mounting front portion 11. Inside the mounting front portion 11 is a reflector mounting groove 111, in which a reflector reflector 20 is mounted. The front end of the mounting front portion 11 has an annular connecting ring portion 112. A fixing ring 30 is connected to the outer side of the connecting ring portion 112 for axially pressing and fixing the reflector reflector 20. A sealing ring 40 is provided between the reflector reflector 20 and the fixing ring 30 to prevent moisture from seeping in from the front end. The flashlight housing 10 has a handle 12 on its side for easy handheld use. The upper part of the outer casing handle 12 is covered with a handle cover 13. A first waterproof ring 121 is provided on the upper edge of the outer casing handle 12, and a second waterproof ring 131 is provided on the lower edge of the handle cover 13. The second waterproof ring 131 is larger than the first waterproof ring 121 and is fitted over the first waterproof ring 121, forming a composite annular sealing structure between the first waterproof ring 121 and the second sealing ring 131, thereby further enhancing the waterproof effect at this location. During use, when the user holds the outer casing handle 12 for illumination, the double waterproof ring structure between the handle cover 13 and the outer casing handle 12 effectively prevents rainwater and moisture from entering the flashlight from the side. Simultaneously, the sealing ring 40 between the reflector cup 20 and the fixing ring 30 at the front end also effectively prevents moisture from penetrating from the lamp head, thus achieving an overall waterproof effect and significantly improving the flashlight's lifespan and stability in humid or harsh environments.

[0019] In practical implementation, the front edge of the reflector cup 20 is recessed with an annular rubber ring groove 21. The diameter of the rubber ring groove 21 is larger than the diameter of the sealing rubber ring 40. The sealing rubber ring 40 is embedded in the rubber ring groove 21. The outer side of the connecting ring portion 112 is provided with a first connecting thread 113, and the inner side of the fixing ring 30 is provided with a matching second connecting thread 31. The first connecting thread 113 and the second connecting thread 31 are connected by a threaded engagement, thereby firmly installing the fixing ring 30 on the outside of the connecting ring portion 112. When the fixing ring 30 is tightened into place, it will apply axial pressure to the sealing rubber ring 40 embedded in the rubber ring groove 21, thereby placing the sealing rubber ring 40 under pressure between the reflector cup 20 and the fixing ring 30, achieving a tight fit and seal. This structure not only enhances the sealing effect of the reflector cup but also facilitates subsequent disassembly and maintenance. During use, it not only effectively prevents moisture penetration at the front lamp head, but also ensures the stability and reliability of the sealing components through the threaded structure, further enhancing the practicality and durability of this waterproof flashlight.

[0020] In practical implementation, the handle 12 of the outer shell is provided with a connecting post 122 inside, and the handle cover 13 is provided with a fixing post 132 inside. The fixing post 132 is connected to the connecting post 122 and is fixed to the fixing post 132 by fasteners passing through the connecting post 122. Thus, the handle cover 13 is fixedly installed on the handle 12 of the outer shell. The overall structure is simple, easy to assemble, and the connection is stable, which facilitates subsequent maintenance and replacement.

[0021] In practical implementation, the flashlight shell 10 is a one-piece molded structure, preferably manufactured as a whole using injection molding or die casting processes. This avoids the water leakage problems caused by loose joints or poor sealing in traditional spliced ​​structures. This one-piece molded structure not only improves the overall strength and structural stability of the flashlight body, but also simplifies the assembly process, reduces production costs, and further enhances the overall waterproof performance of the device.

[0022] In practical implementation, a decorative ring 50 is sleeved on the outer side of the fixing ring 30. The front side of the fixing ring 30 has a first annular protrusion 32, and the rear side of the connecting ring 112 has a second annular protrusion 114. The decorative ring 50 is positioned between the first annular protrusion 32 and the second annular protrusion 114, and is securely nested through an axial limiting structure formed by the two protrusions, preventing displacement or detachment of the decorative ring 50 during use. During use, the decorative ring 50 not only serves an aesthetic purpose but also provides scratch and impact protection for the lamp holder components, enhancing the overall structural integrity and durability. This structure requires no additional adhesive or threaded connections, making assembly simple and quick, facilitating mass production and future replacement.

[0023] In summary, the front mounting part 11 has a lamp holder mounting groove 111 inside, in which a reflector lamp holder 20 is installed. The front end of the front mounting part 11 has an annular connecting ring part 112, and a fixing ring 30 is connected to the outside of the connecting ring part 112. A sealing ring 40 is provided between the reflector lamp holder 20 and the fixing ring 30. The side of the flashlight housing 10 has a housing handle 12, and the upper part of the housing handle 12 is covered with a handle cover 13. The upper edge of the housing handle 12 has a first waterproof ring 121, and the lower edge of the handle cover 13 has a second waterproof ring 131. The second waterproof ring 131 is fitted outside the first waterproof ring 121 to form a composite annular sealing structure. The waterproof flashlight of this utility model can effectively prevent moisture and humidity from entering the housing from the front and sides by setting multiple sealing structures at the lamp head and handle, thereby achieving an overall waterproof effect and significantly improving the service life and stability of the flashlight in humid or harsh environments.

Claims

1. A waterproof flashlight, characterized in that, It includes a flashlight housing (10), the front end of which is provided with a mounting front part (11), the interior of which is provided with a lamp cup mounting groove (111), a reflector cup (20) is installed in the lamp cup mounting groove (111), the front end of which is provided with a connecting ring part (112), a fixing ring (30) is connected to the outside of the connecting ring part (112), a sealing ring (40) is provided between the reflector cup (20) and the fixing ring (30), the side of the flashlight housing (10) is provided with a housing handle (12), the upper part of the housing handle (12) is covered with a handle cover (13), the upper edge of the housing handle (12) is provided with a first waterproof ring (121), the lower edge of the handle cover (13) is provided with a second waterproof ring (131), the second waterproof ring (131) is sleeved on the outside of the first waterproof ring (121) to form an annular sealing connection.

2. The waterproof flashlight according to claim 1, characterized in that, The second waterproof ring (131) is larger than the first waterproof ring (121).

3. The waterproof flashlight according to claim 1, characterized in that, The front edge of the reflector cup (20) is recessed with an annular rubber ring groove (21). The diameter of the rubber ring groove (21) is larger than the diameter of the sealing rubber ring (40). The sealing rubber ring (40) is embedded in the rubber ring groove (21).

4. The waterproof flashlight according to claim 3, characterized in that, The outer side of the connecting ring (112) is provided with a first connecting thread (113), and the inner side of the fixing ring (30) is provided with a second connecting thread (31) that mates with it. The first connecting thread (113) and the second connecting thread (31) are connected by a threaded engagement, so that the fixing ring (30) is firmly installed on the outside of the connecting ring (112). When the fixing ring (30) is tightened to the position, it will apply axial pressure to the sealing ring (40) embedded in the rubber ring groove (21), so that the sealing ring (40) is under pressure between the reflector cup (20) and the fixing ring (30), thereby achieving tight fit and sealing.

5. The waterproof flashlight according to claim 1, characterized in that, The handle (12) of the outer casing is provided with a connecting post (122) inside, and the handle cover (13) is provided with a fixing post (132) inside. The fixing post (132) is connected in the connecting post (122) and is connected and fixed to the fixing post (132) by fasteners passing through the connecting post (122).

6. The waterproof flashlight according to claim 1, characterized in that, The flashlight housing (10) is a one-piece molded structure.

7. The waterproof flashlight according to claim 1, characterized in that, The outer side of the fixing ring (30) is fitted with a decorative ring (50). The front side of the fixing ring (30) is provided with a first annular protrusion (32), and the rear side of the connecting ring (112) is provided with a second annular protrusion (114). The decorative ring (50) is located between the first annular protrusion (32) and the second annular protrusion (114).