一种隧道指示牌
By designing light-transmitting holes and detachable indicator components in the tunnel sign, the problem of damage to the waterproof and dustproof function caused by disassembling and assembling the base box when replacing the indicator film in the existing technology is solved, thus achieving convenient replacement and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIMO SMART (SHENZHEN) CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-17
AI Technical Summary
The existing tunnel signs require disassembling and reassembling the base box when replacing the indicator film, which damages the waterproof and dustproof functions, shortens the service life, and makes replacement cumbersome.
Design a tunnel sign, wherein the indicator light panel is installed in the mounting cavity of the base box, the light-transmitting hole is set correspondingly to the indicator film, the base box is fixedly installed in the tunnel, and the indicator component includes a detachable cover and an indicator film, which realizes illumination through the light-transmitting hole. When the base box and the indicator component are separated, there is no need to disassemble the base box, only the indicator film needs to be replaced.
It enables convenient replacement of indicator films without damaging the waterproof and dustproof function of the base box, thus extending the service life of tunnel signs.
Smart Images

Figure CN224519474U_ABST
Abstract
Claims
1. A tunnel sign, characterized in that include: Indicator light panel (5); The base box (1) includes a base frame (11) and a pressure plate (12). The pressure plate (12) is mounted on the base frame (11) to form a mounting cavity (13). The indicator light panel (5) is disposed in the mounting cavity (13). The pressure plate (12) is provided with a light-transmitting hole (121) that is directly opposite to the indicator light panel (5). The base box (1) is configured to be fixedly installed in the tunnel. The indicator assembly (2) includes a faceplate (21) and an indicator film (22), the indicator film (22) being detachably connected to the faceplate (21), the faceplate (21) being snapped onto the base box (1).
2. The tunnel sign of claim 1, wherein, The tunnel sign also includes a breathing valve (3), and a breathing hole (111) is provided on the bottom frame (11). The breathing hole (111) is connected to the outside and the mounting cavity (13) respectively. The breathing valve (3) is located on the breathing hole (111).
3. The tunnel sign of claim 1, wherein, The cover (21) includes a snap-fit body (211) and a cover body (212). The snap-fit body (211) is located on the top of the cover body (212). The snap-fit body (211) is eaves-shaped and can be snapped onto the bottom box (1).
4. The tunnel sign of claim 3, wherein, The snap-fit body (211) includes a connecting part (2111) and a bending part (2112). One end of the connecting part (2111) is vertically disposed on the top of the face cover body (212), and the bending part (2112) is inclined downward on the other end of the connecting part (2111). The bending part (2112) covers the snap-fit area between the snap-fit body (211) and the bottom box (1).
5. The tunnel sign of claim 3, wherein, The indicator assembly (2) further includes a display panel (23) and a fixing post (24). The display panel (23) is made of a light-transmitting material. The fixing post (24) is disposed on the main body of the cover (212). The display panel (23) is disposed between the indicator film (22) and the cover (21). Both the display panel (23) and the indicator film (22) are sleeved on the fixing post (24).
6. The tunnel sign of claim 1, wherein, The bottom box (1) also includes a light-transmitting plate (14) and a first sealing ring (15). The light-transmitting plate (14) is sleeved on the first sealing ring (15). The first sealing ring (15) is located between the pressure plate (12) and the bottom frame (11), and the pressure plate (12) can press the first sealing ring (15) against the bottom frame (11).
7. The tunnel sign of claim 6, wherein, The first sealing ring (15) includes a first sealing body (151) and a convex ring (152). The convex ring (152) protrudes from the first sealing body (151) toward the pressure plate (12). The convex ring (152) passes through the light-transmitting hole (121) and can abut against the indicator film (22).
8. The tunnel sign of claim 7, wherein, The first sealing body (151) has a recess (153) on the side facing away from the pressure plate (12), and the light-transmitting plate (14) is installed in the recess (153).
9. The tunnel sign of claim 1, wherein, The tunnel sign also includes a side-emitting component (4), which includes a side-emitting light panel (41), a sealing box (42), and a second sealing ring (43). The side-emitting light panel (41) is located on the side of the bottom frame (11), and the sealing box (42) covers the side-emitting light panel (41). The edge of the sealing box (42) abuts against the side of the bottom frame (11) with the second sealing ring (43).
10. The tunnel sign of claim 1, wherein, The bottom box (1) also includes a sealing connector. The bottom frame (11) has a wire outlet hole that communicates with the mounting cavity (13), and the sealing connector is located on the wire outlet hole.