Waterproof interface of alarm lamp
The alarm light waterproof interface, with its upward-sloping wiring opening and limit ring structure, solves the problem of motherboard damage caused by water penetration in gas detectors, achieving stable operation and convenient installation, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-03-06
AI Technical Summary
Existing gas detectors suffer from internal motherboard damage due to water penetration, affecting equipment stability and effectiveness.
A waterproof interface for alarm lights is designed. The upward-sloping wiring opening and the limiting ring structure prevent water from seeping into the main wiring board. The tight fit of the threaded connection and the limiting ring ensures the waterproof effect.
It effectively prevents water leakage, improves equipment stability and service life, ensures the normal operation of the gas detector, and facilitates installation and maintenance.
Smart Images

Figure CN223976003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alarm light technology, specifically a waterproof interface for alarm lights. Background Technology
[0002] Gas detectors are typically used in hazardous locations to detect dangerous gases, and they usually employ a diffusion-based gas detection method.
[0003] Gas detectors typically consist of a main body, an alarm light, and sensors. They have numerous power and data cables, which are usually housed on an internal motherboard. If water seeps into the unit, it can burn out the motherboard, rendering the machine unusable. Water seepage occurs when rainwater, leaking pipes, or condensation accumulates and enters through the connection between the alarm light and the main body, damaging the internal motherboard.
[0004] In view of the above problems, this utility model designs a waterproof interface for the alarm light. By improving the interface connection between the alarm light and the main body, the problem of external water seepage into the internal motherboard is avoided. It also fully considers the ease of installation and stability of the alarm light, so that the gas detector can operate more stably and ensure the effectiveness of gas detection. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a waterproof interface for an alarm light. By improving the interface connection between the alarm light and the main unit, the problem of external water seepage into the internal motherboard is avoided. The invention also fully considers the ease of installation and stability of the alarm light, enabling the gas detector to operate more stably and ensuring the effectiveness of gas detection.
[0006] To achieve the above objectives, this utility model provides a waterproof interface for an alarm light, including a main body. The exterior of the main body is configured as an instrument box cover. A wiring opening is provided on one side of the main body. The wiring opening is connected to the alarm light through a connector. The outer side of the connector is a connector head, which is threaded to the outer end of the wiring opening. The inner end of the wiring opening is obliquely upward and communicates with the main body. The alarm light is electrically connected to the wiring main board inside the main body through the connector.
[0007] The upward angle of the inner end of the wiring opening is 45 degrees to 60 degrees.
[0008] The outer end of the wiring opening extends beyond the outermost edge of the instrument box cover.
[0009] The outer diameter of the limiting ring on the outside of the connector is larger than the inner diameter of the outer end of the wiring opening.
[0010] The limiting ring on the outside of the connector is located inside the outer shell of the main body.
[0011] The inner end of the connector is threaded into the internal part of the alarm light.
[0012] Compared with the prior art, this utility model avoids the shortcomings of external water seeping into the wiring motherboard and burning it out by designing the wiring opening connecting the alarm light and the wiring motherboard in an upward angle. Furthermore, the tight fit between the limiting ring and the wiring opening further prevents water from entering the wiring opening. The overall device is simple and reliable, easy to install and maintain, and improves the service life of the equipment. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the interface connection of this utility model.
[0014] Figure 2 This is a schematic diagram of the overall design of this utility model.
[0015] Figure 3 This is a schematic diagram of a traditional opening connection in the prior art.
[0016] 1 is the instrument box cover, 2 is the main body, 3 is the wiring opening, 4 is the alarm light, 5 is the connector, 6 is the connector head, 7 is the wiring main board, and 8 is the limit ring. Detailed Implementation
[0017] The present invention will now be further described with reference to the accompanying drawings.
[0018] See Figures 1-3 This utility model provides a waterproof interface for an alarm light, including a main body 2. The exterior of the main body 2 is an instrument box cover 1. A wiring opening 3 is provided on one side of the main body 2. The wiring opening 3 is connected to the alarm light 4 through a connector 5. The outer side of the connector 5 is a connector head 6, which is threaded to the outer end of the wiring opening 3. The inner end of the wiring opening 3 is obliquely upward and communicates with the main body 2. The alarm light 4 is electrically connected to the wiring main board 7 inside the main body 2 through the connector 5.
[0019] The upward angle of the inner end of the wiring opening 3 is 45 degrees to 60 degrees.
[0020] The outer end of the wiring opening 3 extends out of the outermost part of the instrument box cover 1.
[0021] The outer diameter of the limiting ring 8 on the outside of the connector 5 is larger than the inner diameter of the outer end of the wiring opening 3.
[0022] The limiting ring 8 on the outer side of the connector 5 is located inside the outer shell of the main body 2.
[0023] The inner end of connector 5 is connected to the internal thread of alarm light 4.
[0024] Working principle:
[0025] This invention requires minimal adjustment during use. Since both sides of the connector 5 are threaded to the alarm light 4 and the wiring opening 3, the connector 5 can be first connected to the alarm light 4, and then the inner end of the connector 5 can be inserted into the wiring opening 3 and threaded until the limiting ring 8 is tightly against the outer side of the wiring opening 3. Because the inner end of the wiring opening 3 is angled upwards, external water cannot enter, and the limiting ring 8 further protects it from water entering the outer end of the wiring opening 3, ensuring its waterproof effect. Then, the two outer shells are installed, enclosing the limiting ring 8 inside. Because the communication pins or contact pads inside the connector 5 are pre-installed when connecting to the alarm light 4 and the wiring opening 3, communication is achieved during connection, ensuring the alarm light can receive commands normally. Furthermore, the connector 5 can be installed and electrically connected to the alarm light 4 and the wiring opening 3 through either embedded or plug-in methods, facilitating different installation requirements and environments.
[0026] The above are merely preferred embodiments of this utility model, intended only to aid in understanding the method and core concept of this application. The scope of protection of this utility model is not limited to the above embodiments; all technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the scope of protection of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] This invention solves the problem of potential damage to internal components and the main board caused by external water leakage in the connection between the alarm light and the gas detector body in the prior art. By improving the connection mechanism of the wiring opening and the outer protection of the limiting ring, it can prevent water leakage from entering the machine body to the greatest extent, ensuring the normal and stable operation of the gas detector. Moreover, the structure is easy to install and maintain, has low production cost, is not easily damaged, and has good application value.
Claims
1. A waterproof interface for a warning light, comprising a body (2), characterized in that, The outside of the body (2) is provided with an instrument box cover (1), one side of the body (2) is provided with a wiring opening (3), the wiring opening (3) is connected with an alarm lamp (4) through a connecting piece (5), the outside of the connecting piece (5) is a connecting head (6), the connecting head (6) is threadedly connected with the outside end of the wiring opening (3), the inside end of the wiring opening (3) is communicated with the body (2) in an oblique upward direction, the alarm lamp (4) is electrically connected with a wiring mainboard (7) in the body (2) through the connecting piece (5).
2. The warning light waterproof interface of claim 1, wherein, The oblique upward angle of the inside end of the wiring opening (3) is 45-60 degrees.
3. The warning light waterproof interface of claim 1, wherein, The outside end of the wiring opening (3) extends out of the outermost side of the instrument box cover (1).
4. The warning light waterproof interface of claim 1, wherein, The outer diameter of a limiting ring (8) on the outside of the connecting piece (5) is larger than the inner diameter of the outside end of the wiring opening (3).
5. The warning light waterproof interface of claim 4, wherein, The limiting ring (8) on the outside of the connecting piece (5) is arranged in the shell of the body (2).
6. The warning light waterproof interface of claim 1, wherein, The inside end of the connecting piece (5) is threadedly connected with the inside of the alarm lamp (4).