Patent CN111102483B
Updated October 26, 2026Camping Lantern with Built-In Flashlight Storage Cavity
Carrying a separate lantern and flashlight means two devices to pack, charge, and keep track of at a campsite. This design combines both functions into one unit without permanently attaching them. The main lamp body features a hollow columnar section that acts as a storage cavity for a standard flashlight. Around the outside of this column, the main light source is arranged to cast light in all directions. When you need area lighting, the main source handles the tent or table. When you need a focused beam, you pull the flashlight out of the cavity. A mechanical limiting assembly holds the flashlight firmly during transport so it does not rattle or fall out, yet releases it quickly when needed. If the flashlight stays inside, a translucent cover over the opening filters its beam into colored scene lighting.
- China invention patent - in force
- No filings outside China
- Portable outdoor lighting
- Hollow column cavity, semicircular limiters, spring ejection
Splat! What let you down?
🔦
Built-in flashlight cavity
The hollow columnar portion of the lamp body stores a flashlight, keeping both tools in one unit.
💡
360-degree main light
LEDs arranged along the outer surface of the column cast area light in every direction.
🔒
Semicircular locking mechanism
Two semicircular limiters close around the flashlight to hold it, and open via a sloped operating piece to release it.
🎨
Scene-light cover
A partially light-transmitting cover over the cavity turns the stored flashlight into colored ambient lighting.
Bring this product to market
- ✓ Patent vetted China-only family and legal status checked
- 2 Product brief · now How it works, uses and options written up
- 3 Prototype First samples for buyers to review
- 4 Pilot run Small first batch for launch customers
- 5 Volume production Repeat orders at scale
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The problem
Outdoor users typically carry a broad-beam lantern for the campsite and a separate flashlight for walking or searching. Packing two independent devices takes up space in a bag, requires managing two sets of batteries or charging cables, and makes it easy to misplace one item in the dark. Some combination products permanently fix a flashlight to the side of a lantern, which adds bulk and prevents the flashlight from being used independently at a distance. Furthermore, when a flashlight is simply placed inside a loose compartment, it rattles during transport and can fall out when the lantern is tilted or carried over rough ground. Users also lack a simple way to create low-level colored scene lighting without carrying extra accessories.
The solution
This camping lamp solves these issues through a hollow columnar structure integrated directly into the main lamp body.
- The lamp holder body (100) includes a columnar portion (110) that is hollow inside, forming a cavity (200) sized to receive at least part of a flashlight.
- The main light source (101) is arranged along the outer surface of the columnar portion, providing 360-degree illumination for area lighting.
- A limiting assembly (410) sits between the lamp holder body and the flashlight. It uses two semicircular pieces that move relative to each other to grip or release the flashlight.
- A pop-up assembly (420) at the bottom of the cavity, consisting of a spring (421) and a gasket (422), pushes the flashlight upward when released.
- A cover body (202) made of partially light-transmitting material fits over the opening (201) of the cavity. When the flashlight is fully stored and turned on, this cover filters the beam into colored scene lighting.
- A light-transmitting lampshade (102) surrounds the columnar portion to protect the LEDs and block insects.
Who it is for
- Outdoor gear brands looking to add a dual-function lighting product to their camping catalog without sourcing two separate items.
- Amazon private-label sellers targeting the camping and hiking niche who need a product with distinct mechanical features for listing differentiation.
- Wholesale distributors supplying sporting goods stores and campgrounds where customers prefer consolidated equipment.
- Promotional product companies seeking a practical outdoor item where the flashlight and lantern serve as a single branded giveaway.
How it works
The main parts
| No. | Part | What it does |
|---|---|---|
| 100 | Lamp holder body | Main structural housing of the camping lamp. |
| 101 | Main light source | LEDs arranged along the columnar portion for 360-degree light. |
| 102 | Light-transmitting lampshade | Surrounds the column to protect LEDs and keep insects out. |
| 110 | Columnar portion | Hollow center section that forms the storage cavity. |
| 113 | Lamp housing | Holds the LED beads and provides illumination holes. |
| 200 | Cavity | Internal space within the columnar portion for the flashlight. |
| 201 | Opening | Top access point of the cavity. |
| 202 | Cover body | Partially light-transmitting cap that creates scene lighting. |
| 410 | Limiting assembly | Locks the flashlight in the cavity or releases it. |
| 411, 412 | First and second limiting pieces | Semicircular components that grip the flashlight. |
| 413 | Operating piece | Actuator that moves the limiting pieces apart. |
| 414 | Guide slope | Outer ramp on a limiting piece to ease flashlight insertion. |
| 415 | Return spring | Pushes the limiting pieces back together when released. |
| 4161, 4162 | First and second slopes | Interacting angled surfaces that convert vertical motion into lateral separation. |
| 420 | Pop-up assembly | Ejects the flashlight when the limiters open. |
| 421 | Spring | Provides the upward ejection force. |
| 422 | Gasket | Sits between the spring and the flashlight base. |
Operating steps
- Insert the flashlight - push it down into the cavity (200). The guide slope (414) on the limiting pieces allows entry.
- Locking - the return spring (415) forces the first limiting piece (411) and second limiting piece (412) together, gripping the flashlight securely.
- Area lighting - turn on the main light source (101) around the columnar portion (110) for 360-degree illumination.
- Scene lighting - leave the flashlight inside, turn it on, and place the cover body (202) over the opening (201) to filter the light.
- Release the flashlight - press or move the operating piece (413) vertically. The second slope (4162) rides against the first slope (4161), forcing the semicircular pieces apart and widening the passage.
- Ejection - the pop-up assembly (420) spring (421) pushes the gasket (422) and the flashlight upward for easy removal.
Applications
Tent and campsite area lighting
Campers setting up a base area use the main light source arranged around the column to illuminate the surroundings evenly. The 360-degree layout covers seating areas without needing to rotate the device.
Nighttime trail walking
When leaving the campsite, the user presses the operating piece to release the flashlight from the cavity. The pop-up spring assists in retrieving it quickly in the dark for a focused directional beam.
Ambient scene lighting at gatherings
During evening group settings, the flashlight remains stored inside the cavity and is switched on. The partially light-transmitting cover placed over the opening diffuses the beam into a specific color, such as yellow when using PVC material, creating low-level mood lighting without extra gear.
Transport and packing
While hiking to a site or riding in a vehicle, the limiting assembly keeps the flashlight locked inside the main lamp body. The semicircular pieces prevent the flashlight from falling out due to vibration or tilting, consolidating two tools into one packed item.
Insect-prone environments
The light-transmitting lampshade surrounding the columnar portion acts as a physical barrier. It protects the exposed LED beads from impacts while preventing insects from entering the lamp housing during nighttime use.
Where it is less suitable
- High-power searchlights - the cavity accommodates a standard flashlight; it is not designed for large, heavy-duty spotlight tubes.
- Submersible dive lighting - the patent describes a camping lamp structure without detailing waterproof sealing ratings for underwater use.
- Fixed architectural lighting - this is a portable battery-powered device intended for temporary outdoor placement, not permanent installation.
Frequently asked questions
How does the flashlight stay inside the lantern?
The lamp body has a hollow column forming a cavity. Inside, two semicircular limiting pieces are pushed together by a return spring, gripping the flashlight. They only separate when the user actuates the operating piece.
How do I take the flashlight out?
You apply force to the operating piece, moving it vertically. Angled slopes on the operating piece interact with matching slopes on the limiting pieces, pushing the semicircular halves apart. Once the opening widens, a spring at the bottom of the cavity pops the flashlight up for easy grabbing.
Does the lantern come with a flashlight?
The patent describes the lantern structure as having a cavity to accommodate a flashlight, noting that the flashlight is not necessarily provided with the lamp initially and can be added later. The exact inclusion depends on the final product configuration.
What is the scene-lighting cover?
It is a cap made of partially light-transmitting material that fits over the cavity opening. When the flashlight is fully stored inside and turned on, its beam passes through this cover to produce colored ambient light rather than a focused spot.
Will bugs get into the LEDs?
The patent describes a light-transmitting lampshade surrounding the columnar portion. This shade acts as a physical barrier to protect the light source from collisions and prevent insects from entering the lamp at night.
What powers the main light?
The patent mentions that a switch, power supply and charging port can be included, and states that a built-in power source system is generally preferred. Specific battery capacity is set in design.
Is the 360-degree light very bright?
The patent specifies that the main light source is arranged along the outer surface of the columnar portion to provide 360-degree illumination. Exact lumen output and LED count are confirmed on prototypes.
Can this design be made and sold in the US?
The patent was filed only in China and is in force in China until at most 2040-01-20 (if annual fees are paid). It does not restrict making or selling the design in the US. However, other US patents may cover similar combination lighting devices, so a freedom-to-operate check is recommended before volume production.
Are you affiliated with the patent owner?
No. IP2M is an independent design and manufacturing service working from the public patent document.
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Helpful details to include:
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- Target flashlight dimensions (diameter and length to size the cavity)
- Main light specifications (LED color, brightness targets)
- Cover body color and material preference for scene lighting
- Battery type and charging port preference
- Estimated quantity and target price
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This page is based on the public patent document CN111102483B, assigned to Ningbo Zhilong Technology Co ltd. IP2M is an independent manufacturing service and is not affiliated with, endorsed by or licensed by the patent owner. Images marked as concept renderings are illustrations, not photos of an existing product. Patent status information is provided for reference only and is not legal advice; confirm freedom to operate for your market before production. Full disclaimer.