Quick-Release Lamp Tube Structure for Electric Towel Racks

The problem

Electric heating towel racks frequently use ultraviolet (UV) sterilization lamps or standard illumination tubes inside their housing. These components degrade over time due to usage cycles and thermal stress, requiring regular replacement. In conventional designs, the lamp tube is held firmly between two static holders. To remove it, a technician must physically grip the glass ends of the tube. However, because the rack generates significant heat during operation, the internal components remain hot long after the power is turned off. Gripping hot glass poses a risk of burns. Furthermore, forcing the tube out against spring-loaded contacts can cause misalignment or breakage of the delicate filaments if done improperly. Existing quick-release mechanisms often rely on complex latches that fail under high humidity or dust accumulation typical in bathroom environments.

The solution

The patented structure decouples the removal action from direct hand contact with the hot tube. It introduces a dynamic support system integrated into the towel rack’s chassis. When the service mode is activated, a drive assembly moves the lamp holders laterally. Simultaneously, a supporting roller located centrally beneath the tube rotates. This rotation is controlled by a combination of squeeze plates and magnetic interactions. As the roller turns, it pushes the lamp tube upward into a dedicated placement groove formed by arc-shaped lifting components. This motion releases the electrical connection gently. The user can then access the tube through the open side of the support, where it rests securely in the groove, cool enough to handle or ready for extraction with minimal effort.

Who it is for

• Smart Home Appliance Brands: Companies manufacturing premium electric towel racks who need to offer easy-maintenance features as a selling point.
• Commercial Laundry Facilities: Businesses installing multiple towel drying units that require frequent bulb changes for hygiene standards; this design reduces downtime per unit.
• Hotel Maintenance Teams: Staff responsible for upkeep in hospitality settings where speed and safety are critical when servicing bathroom amenities.
• OEM Manufacturers: Factories producing private-label towel racks looking for differentiated structural patents to avoid generic commodity competition.

How it works

The main parts

The mechanism relies on coordinated movement between the lamp plate, the sliding blocks, and the central support roller. The key components identified in the drawings include:

Operating steps

1. Activation: The user engages the switch (17), which powers the electromagnet (second magnet 30) and initiates the drive assembly.
2. Holder Retraction: The rotating rods (26) turn the screw rods (25). This causes the installation blocks (28) and attached supports to shift, moving the sliding blocks (3) outward. Consequently, the lamp holders (4) move away from the center.
3. Roller Engagement: As the holders move, the driving members (5) interact with the squeeze plates (8) at the ends of the supporting roller (7). The magnetic attraction between the first magnet and the energized second magnet helps align the components.
4. Tube Lifting: The squeeze plates push the driving members, causing the supporting roller (7) to rotate unidirectionally. The outer surface of the roller encircles the tube, pushing it upward into the placement groove (9) formed by the arc component (10).
5. Locking: The lifting plate (15) and cylinder (12) mechanism ensures the tube stays in the groove while the electrical contacts are fully disengaged.
6. Removal: The tube is now accessible and released from the sockets. The user can slide it out or lift it from the groove without touching hot metal parts directly.

Applications

Hotel Bathroom Upkeep

Housekeeping staff can replace UV bulbs in guest rooms quickly without waiting for the rack to cool completely. This maintains hygiene standards efficiently during turnover times.

Commercial Laundries

Large-scale laundry operations use heated towel cabinets to sanitize linens. Frequent bulb replacements are necessary for consistent UV output. This design minimizes equipment downtime during maintenance shifts.

Residential Smart Homes

High-end home automation systems integrate towel racks into smart hubs. Users appreciate the ease of self-service maintenance for built-in lighting and sterilization features without calling a technician.

Medical Facility Drying Units

Facility maintenance teams can evaluate the release mechanism for servicing towel-rack lamps. This description does not establish suitability for instrument sterilization or infection control; any such intended use requires separate validation.

Where it is less suitable

• Low-Cost Consumer Models: Basic towel racks without UV functions do not need this complex mechanical release system, making it too expensive for entry-level products.
• External Bulb Designs: Racks where the bulb is mounted externally and easily accessible do not benefit from this internal quick-release mechanism.
• Fixed-LED Integrated Boards: If the lighting is provided by soldered SMD LEDs rather than replaceable tube-style lamps, this structure cannot be applied.