Emergency indication board with waterproof function

By incorporating a self-cleaning mechanism and a waterproof structure with vents on the emergency sign, combined with a rainwater collection box and sensors, the problems of insufficient waterproofing and the influence of dust and dirt are solved, achieving automatic cleaning and a long-lasting waterproof effect.

CN224083858UActive Publication Date: 2026-04-03WUHAN CAPITAL MRT TRANSPORTATION FACILITIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing emergency signs are not waterproof enough and are prone to aging or failure due to external forces, which can cause water to seep in and damage the circuitry. In addition, the signs are easily affected by dust and dirt, which can affect their visibility. They require regular manual maintenance and it is difficult to guarantee clear visibility in an emergency.

Method used

The sign features a waterproof structure with a sign shell, self-cleaning mechanism, and vents. Combined with a rainwater collection box and rain sensor, it achieves automatic cleaning and waterproofing functions, ensuring that the inside of the sign is dry and the outer surface is clean.

Benefits of technology

It effectively prevents moisture infiltration, extends service life, improves visibility, reduces the need for manual maintenance, and ensures that signs function normally in harsh environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an emergency indication board with a waterproof function, which relates to the technical field of emergency indication boards and comprises an indication board shell, a self-cleaning mechanism and a vent hole waterproof structure, the self-cleaning mechanism is mounted on the front side of the indication board shell, and the waterproof structure is arranged on the right side wall of the indication board shell. A display interface is arranged in the center of the front face of the sign shell, the self-cleaning mechanism comprises a wiping seat, wiping cotton is arranged on the back side of the wiping seat, the sign shell is provided with a vent hole waterproof structure, a double-face inclined groove is adopted for side face water prevention, and a water flowing groove in the middle can quickly guide water entering the sign shell to be drained. By means of the design, water can be effectively prevented from being accumulated in the indicator shell, and safety of internal circuits and electronic elements can be guaranteed even if the indicator shell is soaked in rainwater for a long time or in a high-humidity environment.
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Description

Technical Field

[0001] This utility model relates to the field of emergency sign technology, and in particular to an emergency sign with waterproof function. Background Technology

[0002] Emergency signs are essential facilities for ensuring the safety of people and guiding emergency evacuation in daily life and various public places.

[0003] However, most emergency signs on the market have certain limitations in terms of waterproof performance. Traditional emergency signs usually use simple sealing methods to prevent water from entering, but this method is prone to failure due to aging, damage or external impact of the seals during long-term use. When encountering rain, humid air or accidental immersion, water can easily seep into the sign, which may lead to problems such as short circuits, damage to electronic components, and failure of indication function.

[0004] Furthermore, in actual use environments, emergency signs are often exposed to various dust, dirt, and other pollutants. Over time, these contaminants can affect the visibility of the signs and reduce their guiding effect. Existing emergency signs require regular manual cleaning and maintenance, which is not only costly in terms of manpower and resources, but may also fail to ensure the clear visibility of the signs in an emergency.

[0005] Therefore, we propose an emergency sign with waterproof functionality. Utility Model Content

[0006] The purpose of this utility model is to solve the shortcomings of the existing technology. Currently, most emergency signs on the market have limited waterproofing. Traditional sealing methods are prone to failure due to aging, external forces, etc. Water can easily seep in and damage the circuits. In addition, the signs are easily affected by dust and dirt, which affects their visibility. They require manual maintenance, which consumes manpower and resources, and it is difficult to guarantee clear visibility in emergencies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A waterproof emergency sign

[0009] This includes the sign housing, self-cleaning mechanism, and waterproof structure with vents;

[0010] This includes the sign housing, self-cleaning mechanism, and waterproof structure with vents;

[0011] The sign housing has a display interface at the center of the front side. A vent waterproof structure is located on the right side wall of the sign housing. The vent waterproof structure is used to dissipate heat without allowing water to enter. A self-cleaning mechanism is installed on the front side of the sign housing to clean the display interface.

[0012] As a preferred embodiment of this utility model, the top of the sign shell is provided with a rainwater collection box, the inside of the rainwater collection box is provided with a collection chamber, the inside of the collection chamber and near the top is provided with a filter screen, and the inside of the rainwater collection box is provided with a rain sensor.

[0013] As a preferred embodiment of this utility model, the rainwater collection box and the top of the sign housing are fixedly connected, the filter screen is connected to the rainwater collection box by bolts, and the rain sensor and the self-cleaning mechanism are used in conjunction with each other.

[0014] As a preferred embodiment of this utility model, the front of the sign housing and above the display interface is provided with an installation groove, and the self-cleaning mechanism also includes a lead screw. The input end of the lead screw and the right side wall of the sign housing are provided with a waterproof motor, and the lead screw is provided with a sliding block.

[0015] In a preferred embodiment of this utility model, the lead screw is installed inside the mounting groove, the sliding block can drive the lead screw to rotate, the sliding block can be displaced on the lead screw, and the wiping cotton is made of sponge.

[0016] As a preferred embodiment of this utility model, the opening angle of the plurality of waterproof holes is 45°, and the waterproof holes on both sides are mirrored. The interior of the sign housing is provided with a display assembly, which works in conjunction with the display interface.

[0017] As a preferred embodiment of this utility model, a back side shell is installed on the back side wall of the sign housing, and the back side shell and the sign housing are connected to each other by a sealing ring and bolts. Rainwater guiding plates are integrally formed on the top and side walls of the back side shell.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] In this invention, the sign housing is equipped with a vent and waterproof structure. The side waterproofing adopts a double-sided inclined groove, and the water channel in the middle can quickly guide the water entering the sign housing out. This design can effectively prevent water from accumulating inside the sign housing, and can ensure the safety of internal circuits and electronic components even in long-term rain immersion or high humidity environment.

[0020] The back shell of the sign features a three-sided beveled rainwater guide plate design, allowing water to slide off naturally and not accumulate on the surface. This not only reduces the risk of water seepage but also prevents corrosion and damage caused by residual moisture, greatly extending the service life of the sign.

[0021] The self-cleaning mechanism on the front works in conjunction with the rain sensor on the top to monitor rainfall in the environment in real time. When rain or dust accumulates on the surface of the sign, the sensor will trigger the cleaning mechanism to wipe it automatically, ensuring that the outer surface of the sign shell is always clean. This function not only improves the visibility of the sign, but also reduces the need for manual cleaning and lowers maintenance costs. Attached Figure Description

[0022] Figure 1 A schematic diagram of the main structure of an emergency sign with waterproof function provided by this utility model;

[0023] Figure 2 A schematic diagram showing the location of a rain sensor in a waterproof emergency sign provided by this utility model;

[0024] Figure 3 A schematic diagram showing the installation position of a wiping cotton for a waterproof emergency sign provided by this utility model;

[0025] Figure 4 A schematic diagram of the main body back structure of an emergency sign with waterproof function provided by this utility model;

[0026] Figure 5 This utility model provides a cross-sectional schematic diagram of the waterproof structure of the ventilation holes of an emergency sign with waterproof function.

[0027] Legend: 1. Indicator housing; 2. Rainwater collection box; 3. Collection chamber; 4. Filter screen; 5. Rain sensor; 6. Mounting slot; 7. Lead screw; 8. Waterproof motor; 9. Sliding block; 10. Wiping seat; 11. Wiping cotton; 12. Isolation chamber; 13. Waterproof hole; 14. Water channel; 15. Display interface; 16. Display assembly; 17. Back side housing; 18. Rainwater guide plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Example

[0033] like Figure 1-5 As shown, this utility model provides a technical solution: an emergency sign with waterproof function, including a sign shell 1, a self-cleaning mechanism, and a vent waterproof structure. The self-cleaning mechanism is installed on the front of the sign shell 1, and the waterproof structure is located on the right side wall of the sign shell 1. A display interface 15 is provided at the center of the front of the sign shell 1. The self-cleaning mechanism includes a wiping seat 10, and a wiping cotton 11 is provided on the back side of the wiping seat 10. The vent waterproof structure is located on the right side wall of the sign shell 1. The waterproof structure includes an isolation cavity 12, and several waterproof holes 13 are provided on both sides of the isolation cavity 12. A water channel 14 is provided at the bottom of the isolation cavity 12.

[0034] The sign housing is equipped with a vent and waterproof structure. The side waterproofing adopts a double-sided inclined groove, and the water channel 14 in the middle can quickly guide the water entering the sign housing 1 to drain out. This design can effectively prevent water from accumulating inside the sign housing 1, and ensure the safety of internal circuits and electronic components even in long-term rain immersion or high humidity environment.

[0035] The back shell 17 of the sign housing 1 adopts a three-sided beveled rainwater guide plate 18 design, which allows water to slide off naturally and not accumulate on the surface. This not only reduces the risk of water seepage, but also avoids corrosion and damage caused by water residue, greatly extending the service life of the sign.

[0036] The self-cleaning mechanism on the front works in conjunction with the rain sensor 5 on the top to monitor the rainfall in the environment in real time. When rain or dust accumulates on the surface of the sign, the sensor will trigger the cleaning mechanism to wipe it automatically, ensuring that the outer surface of the sign shell 1 is always clean. This function not only improves the visibility of the sign, but also reduces the need for manual cleaning and lowers maintenance costs.

[0037] The top of the sign housing 1 is equipped with a rainwater collection box 2. The rainwater collection box 2 has a collection chamber 3 inside. The collection chamber 3 has a filter screen 4 inside and near the top. The rainwater collection box 2 has a rain sensor 5 inside. The rainwater collection box 2 and the top of the sign housing 1 are fixedly connected. The filter screen 4 is connected to the rainwater collection box 2 by bolts. The rain sensor 5 works in conjunction with the self-cleaning mechanism.

[0038] The rainwater collection box 2, located at the top of the sign housing 1, has a collection chamber 3 with a certain volume, capable of collecting a certain amount of rainwater. A filter screen 4 is installed near the top of the collection chamber 3. The filter screen 4 can be made of durable stainless steel, which has good corrosion resistance and filtration effect. The filter screen 4 is connected to the rainwater collection box 2 by sturdy bolts. This connection method is not only firm and reliable, but also easy to disassemble and clean when needed, ensuring that the filter screen 4 always maintains good filtration performance. The rainwater collection box 2 and the top of the sign housing 1 are fixedly connected by a combination of welding and sealant, ensuring the connection is firm and airtight, preventing rainwater from seeping into the interior of the sign.

[0039] The front of the sign housing 1 and above the display interface 15 is provided with a mounting groove 6. The self-cleaning mechanism also includes a lead screw 7. The input end of the lead screw 7 and the right side wall of the sign housing 1 are provided with a waterproof motor 8. The lead screw 7 is provided with a sliding block 9. The lead screw 7 is installed inside the mounting groove 6. The sliding block 9 can drive the lead screw 7 to rotate. The sliding block 9 can be displaced on the lead screw 7. The wiping cotton 11 is made of sponge.

[0040] The self-cleaning mechanism, installed on the front of the sign housing 1, is a key component ensuring the cleanliness of the sign surface. It mainly consists of a wiping seat 10 and a wiping cotton 11. The wiping cotton 11 is made of high-quality sponge material, possessing excellent water absorption and softness, effectively wiping away rainwater and dust from the sign surface without scratching it. A lead screw 7 is installed in the mounting groove 6 on the front of the sign housing 1, above the display interface 15. The inner wall of the mounting groove 6 is finely polished to ensure the installation accuracy and stability of the lead screw 7. The input end of the lead screw 7 is located on the right side wall of the sign housing 1 and is tightly connected to a waterproof motor 8. The waterproof motor 8 features a well-sealed waterproof design, enabling it to operate normally in humid environments and providing reliable power for the rotation of the lead screw 7. A sliding block 9 is provided on the lead screw 7. The sliding block 9 is made of high-strength aluminum alloy, possessing excellent wear resistance and corrosion resistance. The sliding block 9 can precisely move on the lead screw 7, thereby driving the wiping seat 10 and the wiping cotton 11 to thoroughly wipe the sign surface.

[0041] The opening angle of several waterproof holes 13 is 45°, and the waterproof holes 13 on both sides are mirrored. The interior of the sign housing 1 is provided with a display assembly 16, which works in conjunction with the display interface 15.

[0042] The waterproof structure is located on the right side wall of the sign housing 1 and is an important component to ensure the waterproof performance of the sign. It includes an isolation cavity 12. The internal space of the isolation cavity 12 is carefully designed to effectively guide the flow of water. Several waterproof holes 13 are opened on both sides of the isolation cavity 12. The opening angle of the waterproof holes 13 is 45° and the waterproof holes 13 on both sides are mirrored. This special design allows the water that enters to flow into the isolation cavity 12 quickly through the waterproof holes 13 without directly entering the interior of the sign. The edges of the waterproof holes 13 are sealed to prevent water from seeping in from the edges. A water channel 14 is provided at the bottom of the isolation cavity 12. The inner wall of the water channel 14 is smooth and has an inclined design, which can quickly guide water out and ensure the dryness of the interior of the sign.

[0043] A back side housing 17 is installed on the back side wall of the sign housing 1. The back side housing 17 and the sign housing 1 are connected to each other by a sealing ring and bolts. Rainwater guide plates 18 are integrally formed on the top and side walls of the back side housing 17.

[0044] A back side shell 17 is tightly installed on the back side wall of the sign housing 1. The back side shell 17 and the sign housing 1 are sealed by a high-quality sealing ring, and the connection is further secured by bolts. This double protection ensures the tightness of the connection and effectively prevents water from seeping in. Rainwater guide plates 18 are integrally formed on the top and side walls of the back side shell 17. The rainwater guide plates 18 are made of smooth plastic material and have good water resistance and self-cleaning properties. When rainwater falls on the back side shell 17, the rainwater guide plates 18 can quickly guide the rainwater to slide off and prevent rainwater from accumulating on the surface.

[0045] In summary, when the rain sensor 5 detects rain falling, its internal sensing element quickly converts the rain signal into an electrical signal and transmits the electrical signal to the waterproof motor 8 of the self-cleaning mechanism.

[0046] Upon receiving the signal, the waterproof motor 8 immediately activates its internal motor drive system. This system drives the lead screw 7 to rotate via a precision transmission device. The rotation speed and direction of the lead screw 7 can be intelligently adjusted according to the amount of rainfall and the cleaning requirements of the sign surface.

[0047] The rotation of the lead screw 7 causes the sliding block 9 to move precisely on the lead screw 7. The movement trajectory of the sliding block 9 is carefully designed to ensure that the wiping seat 10 and the wiping cotton 11 can thoroughly wipe the surface of the sign. Driven by the sliding block 9, the wiping seat 10 and the wiping cotton 11 wipe the surface of the sign with a certain pressure and speed, effectively cleaning rainwater and dust.

[0048] Meanwhile, the vent waterproof structure begins to function. When water enters the sign housing 1, the moisture first comes into contact with the waterproof hole 13. Due to the special design of the waterproof hole 13, the moisture can quickly flow into the isolation cavity 12. The moisture flowing into the isolation cavity 12 will be discharged to the outside along the water channel 14, ensuring that the inside of the sign is dry.

[0049] The rainwater guide plate 18 on the back side shell 17 also plays an important role. When rainwater falls on the back side shell 17, the rainwater guide plate 18 can quickly guide the rainwater to slide down, preventing water accumulation and seepage.

[0050] The rainwater collection box 2 also plays an important role in the whole process. It can collect a certain amount of rainwater to provide accurate rainfall information for the rain sensor 5. The filter screen 4 can filter impurities in the rainwater to prevent impurities from entering the interior of the sign and affecting the normal operation of the sign. The rain sensor 5 continuously monitors the rainfall and controls the operation of the self-cleaning mechanism as needed to ensure that the sign is always kept clean and in good working condition.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An emergency sign with waterproof function, characterized in that: it comprises a sign shell (1), a self-cleaning mechanism and a vent waterproof structure; the center of the front of the sign shell (1) is provided with a display interface (15), the vent waterproof structure is arranged on the right side wall of the sign shell, the vent waterproof structure is used for preventing water from entering while dissipating heat, the self-cleaning mechanism is installed on the front of the sign shell (1) and is used for cleaning the display interface (15). The self-cleaning mechanism comprises a wiping seat (10), and the back side of the wiping seat (10) is provided with wiping cotton (11); The vent waterproof structure is arranged on the right side wall of the sign shell (1), and the vent waterproof structure comprises an isolation cavity (12), a plurality of waterproof holes (13) are arranged on the two sides of the isolation cavity (12) in a facing manner, and a water channel (14) is arranged at the bottom of the isolation cavity (12).

2. The emergency sign with waterproof function according to claim 1, characterized in that: The top of the sign shell (1) is provided with a rainwater collecting box (2), the inside of the rainwater collecting box (2) is provided with a collecting cavity (3), the inside of the collecting cavity (3) and close to the top is provided with a filter screen (4), and the inside of the rainwater collecting box (2) is provided with a rainfall sensor (5). The rainwater collecting box (2) and the top of the sign shell (1) are fixedly connected, the filter screen (4) and the rainwater collecting box (2) are connected through bolts, and the rainfall sensor (5) and the self-cleaning mechanism are used in cooperation.

3. The emergency sign with waterproof function according to claim 2, characterized in that: The front of the sign shell (1) and above the display interface (15) are provided with a mounting groove (6), the self-cleaning mechanism further comprises a lead screw (7), the input end of the lead screw (7) and located on the right side wall of the sign shell (1) is provided with a waterproof motor (8), and the lead screw (7) is provided with a sliding block (9).

4. The emergency sign with waterproof function according to claim 3, characterized in that: The lead screw (7) is installed in the mounting groove (6), the sliding block (9) can drive the lead screw (7) to rotate, the sliding block (9) can displace on the lead screw (7), and the material of the wiping cotton (11) is sponge.

5. The emergency sign with waterproof function according to claim 4, characterized in that: The opening angle of the waterproof holes (13) is 45°, the waterproof holes (13) on the two sides are mirror-symmetrically arranged, the inside of the sign shell (1) is provided with a display assembly (16), and the display assembly (16) and the display interface (15) are used in cooperation.

6. The emergency sign with waterproof function according to claim 5, characterized in that: The back side of the sign shell (1) is provided with a back side shell (17), the back side shell (17) and the sign shell (1) are connected through a sealing ring and bolts, and the top and the two side walls of the back side shell (17) are integrally formed with a rainwater guide piece (18).

7. The emergency sign with waterproof function according to claim 6, characterized in that: ​ 8. The emergency sign with waterproof function according to claim 7, characterized in that: ​