Anti-skid fire well lid
By designing inclined protrusions and mesh drainage channels on fire hydrant covers, combined with guide ridges and drain holes, the problem of slippage in existing covers during rain and snow has been solved, achieving stable friction and rapid drainage, thus improving the safety and service life of fire hydrant covers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINCHANG NEW HENGTAI WELL COVER CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-24
AI Technical Summary
Existing fire hydrant covers are not effective at preventing slipping in rainy or snowy weather. They tend to form a continuous water film, resulting in insufficient friction and low drainage efficiency. This leads to a high risk of pedestrians slipping and vehicles skidding, and cannot provide continuous and stable anti-slip protection.
The manhole cover is designed with multiple protrusions, the edges of which are inclined and have anti-slip grooves to form a mesh drainage channel. Combined with guide ridges and drain holes, it enhances friction and facilitates rapid drainage. The bottom of the protrusions is reinforced with ribs and sealing strips to enhance overall stability.
It enhances friction in rainy and snowy weather, disrupts the continuity of the water film, drains water quickly, ensures stable anti-slip performance, reduces the risk of slipping and falling, extends service life, and improves safety.
Smart Images

Figure CN224549205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire well cover technology, and in particular to an anti-slip fire well cover. Background Technology
[0002] Fire hydrant covers, as an important component of fire protection facilities, are widely distributed in various areas such as urban roads, residential communities, and industrial parks. They must not only withstand the loads of passing vehicles and pedestrians but also ensure safe passage under various weather conditions. In inclement weather such as rain and snow, ordinary manhole covers are prone to water accumulation, leading to safety hazards such as pedestrians slipping and vehicles skidding. Especially in fire emergencies, if slippery manhole covers impede the passage of fire trucks or the actions of rescue personnel, it may delay rescue efforts. Furthermore, fire hydrant covers are often located in areas with high pedestrian and vehicle traffic, and their anti-slip performance is directly related to public safety. While traditional manhole covers have some anti-slip design, their stability and durability in providing anti-slip effects are still lacking, making it difficult to meet the needs of use in complex environments. Therefore, improving the anti-slip performance of fire hydrant covers has become an important issue in ensuring public safety.
[0003] Currently, most common manhole covers use only simple stripes or dotted raised surfaces, with an inadequate design for anti-slip textures. This results in insufficient friction with the contact surface, and in rainy or snowy weather, a continuous water film easily forms on the surface, significantly weakening the anti-slip effect and increasing the risk of pedestrians slipping and vehicles skidding. While some manhole covers have drainage structures, their drainage efficiency is low, and accumulated water easily covers the anti-slip texture, further reducing its performance. Furthermore, the edges of existing anti-slip textures are mostly vertical, making it difficult to effectively disrupt the continuity of the water film. The anti-slip effect is greatly affected by weather conditions, and long-term wear leads to a rapid decline in anti-slip performance, failing to provide continuous and stable anti-slip protection for pedestrians and vehicles, and thus failing to meet the high safety requirements of fire-fighting manhole covers.
[0004] Therefore, a new type of anti-slip fire well cover is proposed to solve the above problems. Utility Model Content
[0005] 1. Technical problems to be solved The purpose of this utility model is to provide an anti-slip fire manhole cover. By incorporating a detection component, it solves the problem that most common manhole covers currently in use only employ simple stripes or dotted raised surfaces, resulting in an inadequate anti-slip texture design and insufficient friction with the contact surface. In rainy or snowy weather, a continuous water film easily forms on the surface, greatly weakening the anti-slip effect and increasing the risk of pedestrians slipping and vehicles skidding. Although some manhole covers have drainage structures, their drainage efficiency is low, and accumulated water easily covers the anti-slip texture, further reducing its anti-slip performance. Furthermore, the edges of existing anti-slip textures are mostly designed vertically, making it difficult to effectively disrupt the continuity of the water film. The anti-slip effect is greatly affected by weather conditions, and the textures are prone to wear after long-term use, leading to a rapid decline in anti-slip performance. This fails to provide continuous and stable anti-slip protection for pedestrians and vehicles, making it difficult to meet the high safety requirements of fire manhole covers.
[0006] 2. Technical Solution To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a non-slip fire manhole cover, including a manhole cover with multiple protrusions installed on the upper end of the manhole cover. Each of the protrusions has multiple transverse anti-slip grooves, and the gaps between the multiple sets of protrusions form a mesh drainage channel. The manhole cover is provided with a drain hole.
[0007] Furthermore, the edge of the protrusion is inclined at a 45-degree angle to the upper surface of the manhole cover.
[0008] Furthermore, a guide rib is installed on the end of any of the protrusions near the drain hole.
[0009] Furthermore, a filter screen is installed inside the drainage hole.
[0010] Furthermore, a guide pipe is installed at the bottom of the manhole cover, the upper end of the guide pipe is connected to the drain hole, and the end of the guide pipe away from the drain hole is close to the edge of the manhole cover.
[0011] Furthermore, a fixing ring is installed at the bottom of the manhole cover, and a reinforcing rib is installed on the inner wall of the fixing ring. The reinforcing rib is cross-shaped.
[0012] Furthermore, a sealing strip is installed on the outer ring of the manhole cover, the inner wall of the sealing strip is connected to the outer ring of the fixing ring, a manhole cover is installed below the manhole cover, and the diameter of the outer ring of the sealing strip is slightly larger than the inner ring diameter of the manhole base.
[0013] 3. Beneficial effects Compared with existing technologies, the advantages of this utility model are: The size and spacing of the individual protrusions in this invention are reasonably set, which can significantly increase the contact roughness with shoe soles and tires, effectively improving friction. In rainy and snowy weather, it can effectively prevent pedestrians from slipping and vehicles from skidding, providing strong protection for traffic safety. The 45-degree inclined design of the protrusion edges can effectively disrupt the continuity of the water film, further enhancing the anti-slip effect and ensuring stable anti-slip performance even in adverse weather conditions. At the same time, the gaps between the protrusions form a mesh drainage channel, which can quickly drain surface water and prevent water from covering the texture and affecting the anti-slip effect. The set guide ridges can guide the water to flow quickly in a fixed direction to the drain hole, preventing the water from flowing disorderly in the drainage channel, accelerating the drainage speed, reducing the time water remains on the manhole cover surface, and thus reducing the impact of the water film on the anti-slip effect of the protrusions.
[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a structural diagram showing the installation configuration of this utility model; Figure 2 This is a structural diagram of the manhole cover of this utility model; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a structural diagram of the guide tube of this utility model; Figure 5 This is a structural diagram of the fixing ring and reinforcing rib of this utility model.
[0017] The attached diagram lists the components represented by each number as follows: 110. Manhole cover; 120. Protrusion; 121. Anti-slip groove; 122. Guide rib; 130. Drain hole; 131. Filter screen; 132. Guide pipe; 210. Fixing ring; 220. Reinforcing rib; 310. Sealing strip; 320. Manhole base. Detailed Implementation
[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0022] Please see Figure 1-5 As shown, this embodiment is a non-slip fire well cover 110, including a well cover 110. The upper end of the well cover 110 is equipped with multiple protrusions 120. Each of the protrusions 120 has multiple transverse anti-slip grooves 121. The gaps between the multiple sets of protrusions 120 form a mesh drainage channel. The well cover 110 is provided with a drain hole 130. The edge of the protrusion 120 is inclined at a 45-degree angle to the upper surface of the manhole cover 110. The 45-degree inclined edge of the protrusion 120 smoothly transitions from the top edge to the bottom. When in contact with the sole of a shoe or tire, the inclined angle can guide and disperse the pressure of the contact surface, while breaking the continuous water film formed by rainwater or snow on the surface of the protrusion 120. The water film flows downward along the inclined surface and flows into the drainage channel, reducing the weakening effect of the water film on friction. In addition, compared with a vertical edge, the 45-degree inclined edge structure can increase the instantaneous deformation of the contact point when pedestrians or vehicles come into contact with the protrusion 120. The resistance generated by the deformation further improves the anti-slip effect. The inclined angle not only ensures the enhancement of anti-slip performance, but also avoids the problem of easy wear of the edge of the protrusion 120 due to excessive angle, thus extending the service life of the protrusion 120. Each of the protrusions 120 is equipped with a guide rib 122 at the end near the drain hole 130. This design can guide the accumulated water to flow quickly towards the drain hole 130 in a fixed direction, avoid the water flowing randomly in the drainage channel, speed up the drainage speed, reduce the water retention time on the surface of the manhole cover 110, and thus reduce the impact of the water film on the anti-slip effect of the protrusion 120.
[0023] A filter screen 131, made of stainless steel, is installed inside the drain hole 130 to intercept debris such as leaves and mud, preventing the drain hole 130 from becoming clogged. A guide pipe 132 is installed at the bottom of the manhole cover 110. The upper end of the guide pipe 132 is connected to the drain hole 130, and the end of the guide pipe 132 away from the drain hole 130 is close to the edge of the manhole cover 110. This design can guide accumulated water to the manhole wall, avoiding direct impact on the facilities inside the manhole.
[0024] A fixing ring 210 is installed at the bottom of the manhole cover 110. A reinforcing rib 220, which is cross-shaped, is installed on the inner wall of the fixing ring 210. This cross-shaped reinforcing rib enhances the overall load-bearing capacity of the manhole cover 110, resisting the heavy pressure of large fire trucks, preventing bending deformation due to uneven stress, and extending its service life. A sealing strip 310 is installed on the outer ring of the manhole cover 110. The inner wall of the sealing strip 310 is connected to the outer ring of the fixing ring 210. A sealing strip is installed below the manhole cover 110. The manhole cover 110 has an outer diameter of sealing strip 310 that is slightly larger than the inner diameter of manhole base 320. When the manhole cover 110 and manhole base 320 are in contact, the sealing strip 310 is compressed to form a sealing structure, preventing rainwater and mud from entering the manhole. At the same time, the elasticity of the sealing strip 310 can buffer the collision between the manhole cover 110 and the manhole ring, reducing noise. The rough contact surface can increase the friction between the manhole cover 110 and the sealing strip 310, further enhancing the anti-slip effect and preventing the manhole cover 110 from slipping slightly when driven over by vehicles.
[0025] Working principle: When it rains, the transverse anti-slip grooves 121 on the protrusion 120 increase friction, and the 45-degree inclined edge disperses the contact pressure, breaking the water film and causing it to flow into the mesh drainage channel along the inclined surface. At the same time, the inclined structure increases the deformation of the contact point, improving the anti-slip effect. The guide ridges 122 on the protrusion 120 guide the accumulated water to flow quickly to the drain hole 130, accelerating drainage. The stainless steel filter screen 131 inside the drain hole 130 intercepts debris to prevent clogging. The accumulated water enters the bottom guide pipe 132 through the drain hole 130 and is guided towards the well wall, avoiding impact on the facilities inside the well. The cross-shaped reinforcing ribs 220 at the bottom of the well cover 110 enhance the load-bearing capacity and resist heavy pressure to prevent deformation. The outer ring sealing strip 310 is compressed when the well cover 110 and the well base 320 are in contact, achieving a seal to prevent debris from entering, while also buffering collisions and reducing noise, increasing friction to prevent the well cover 110 from sliding, and ensuring overall stability.
[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A non-slip fire well cover (110), characterized in that, include: The manhole cover (110) has multiple protrusions (120) installed on its upper end. Each of the protrusions (120) has multiple transverse anti-slip grooves (121). The gaps between the multiple sets of protrusions (120) form a mesh drainage channel. The manhole cover (110) has a drain hole (130).
2. The anti-slip fire well cover (110) according to claim 1, characterized in that, The edge of the protrusion (120) is inclined at a 45-degree angle to the upper surface of the manhole cover (110).
3. The anti-slip fire well cover (110) according to claim 2, characterized in that, Each of the protrusions (120) has a guide rib (122) installed at the end near the drain hole (130).
4. The anti-slip fire well cover (110) according to claim 1, characterized in that, A filter screen (131) is installed inside the drain hole (130).
5. The anti-slip fire well cover (110) according to claim 1, characterized in that, The bottom end of the manhole cover (110) is equipped with a guide pipe (132), the upper end of the guide pipe (132) is connected to the drain hole (130), and the end of the guide pipe (132) away from the drain hole (130) is close to the edge of the manhole cover (110).
6. The anti-slip fire well cover (110) according to claim 1, characterized in that, The bottom of the manhole cover (110) is equipped with a fixing ring (210), and a reinforcing rib (220) is installed on the inner side wall of the fixing ring (210). The reinforcing rib (220) is cross-shaped.
7. The anti-slip fire well cover (110) according to claim 1, characterized in that, The manhole cover (110) is equipped with a sealing strip (310) on its outer ring. The inner wall of the sealing strip (310) is connected to the outer ring of the fixing ring (210). A manhole cover (110) is installed below the manhole cover (110). The outer ring diameter of the sealing strip (310) is slightly larger than the inner ring diameter of the manhole seat (320).