A fire-fighting robot chassis with drainage structure

Abstract

This utility model relates to the field of firefighting robot technology, specifically disclosing a firefighting robot chassis with a drainage structure. The chassis includes a chassis body, on which a guide surface for directing liquid flow is provided, and drainage holes are opened at the end of the guide surface, together forming an active drainage structure. Preferably, the guide surface is an inclined or curved surface, and the drainage holes are concentrated at the lowest point of the bottom of the sunken equipment compartment (such as a pump compartment) on the chassis. This utility model achieves efficient and directional drainage through physical structure, quickly removing water accumulated on the chassis surface during operation, effectively preventing water ingress into the equipment compartment, protecting critical equipment from short circuits and corrosion damage, and significantly improving the reliability and durability of the firefighting robot in humid and harsh environments such as wading and spraying. The structure is simple and reliable, requiring no additional power or maintenance.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting robot technology, specifically to a fire-fighting robot chassis with a drainage structure. Background Technology

[0002] The chassis of a firefighting robot is its core load-bearing structure, responsible for housing all critical equipment such as the power system, fire extinguishing system, and control system, and directly connecting to the walking mechanism. During firefighting operations, robots often need to traverse flooded areas, approach fire sources to withstand high-intensity spray, or wade through water to collect water. Therefore, the chassis not only needs sufficient structural strength and rigidity but must also effectively cope with water damage, preventing external liquid intrusion that could cause short circuits, corrosion, or damage to the equipment.

[0003] In existing technologies, the waterproof design of firefighting robot chassis mainly focuses on "blocking" and "prevention." Common practices include: using integral welding or sealing strips to improve the sealing of the chassis compartment; installing critical equipment in higher positions to avoid flooding; or creating a few drainage holes at the lowest point of the chassis. However, these methods have significant limitations: First, once water enters a completely sealed structure, it is difficult for the water to drain, which can lead to long-term accumulation and corrosion of the equipment; second, simple drainage holes are easily clogged by mud and debris and become ineffective; third, when the robot moves or changes its posture, scattered drainage holes cannot ensure that accumulated water is quickly and thoroughly drained in the designated direction. In addition, some complex active drainage schemes (such as built-in small water pumps) increase costs, energy consumption, and potential points of failure.

[0004] In summary, existing firefighting robot chassis suffer from the following technical problems when dealing with water-related situations: First, there is a conflict between waterproofing and drainage, as the sealed structure is not conducive to the removal of infiltrated water; second, drainage is passive and inefficient, relying on gravity for natural drainage, with unclear paths and a tendency to clog and fail; third, there is a lack of systematic design, failing to consider the relationship between the robot's motion posture and the direction of water flow, resulting in incomplete drainage. Therefore, there is an urgent need for a systematic structural solution that can actively, quickly, and reliably guide and drain water that has infiltrated the chassis surface. Summary of the Invention

[0005] The purpose of this invention is to overcome the "blocking and draining contradiction" and inefficient drainage problems existing in the waterproof design of existing fire-fighting robot chassis, and to provide a fire-fighting robot chassis with a drainage structure. Specifically, this invention aims to quickly and reliably remove liquids (such as rainwater, spray water, and wading water) accumulated on the chassis surface through a systematic structural design of active guidance and directional drainage, thereby effectively protecting the key equipment installed on the chassis and improving the robot's reliability and durability in humid and watery environments.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: A fire-fighting robot chassis with a drainage structure includes a chassis body for supporting equipment and providing an installation base. The chassis body has at least one guide surface on its bearing surface for guiding the flow of liquid. The chassis body also has at least one drain hole that is in fluid communication with the end of the guide surface. The guide surface and the drain hole together form a drainage structure for directional discharge of water accumulated on the chassis surface.

[0007] Furthermore, the guide surface is an inclined or curved surface that slopes from the central area or one side of the chassis body toward the location of the drainage hole.

[0008] Furthermore, the inclination angle of the guide surface is 2° to 5°.

[0009] Furthermore, a sunken equipment compartment for installing specific functional components is formed on the chassis body, and the drainage hole is opened at the bottom of the sunken equipment compartment.

[0010] Furthermore, the sunken equipment compartment is a pump compartment for installing a booster self-priming water pump, and its bottom wall constitutes part or all of the guide surface.

[0011] Furthermore, there are multiple drainage holes located at the bottom of the sunken equipment compartment, which are concentrated in the lowest region of the sunken equipment compartment in the direction of gravity.

[0012] Furthermore, the plurality of drainage holes are arranged in an array or along a predetermined drainage path.

[0013] Furthermore, the front and / or rear edges of the chassis body are provided with upward-folding water-retaining flanges.

[0014] Furthermore, the guide surface is an integral structure formed by one of the following processes: stamping, bending, or welding splicing of the chassis body sheet.

[0015] Furthermore, the diameter of the drainage hole is 5mm to 20mm.

[0016] Compared with the prior art, the present invention has the following significant advantages: 1. Achieved efficient and proactive drainage: Through a scientifically designed flow guide surface, the traditional passive and disorderly drainage of accumulated water is transformed into proactive and directional guided drainage. Regardless of the robot's stationary or moving posture, the liquid can flow rapidly to the predetermined position along the flow guide surface under the action of gravity. The drainage path is clear and the efficiency is significantly higher than that of an unguided flat chassis.

[0017] 2. Solves the problems of easy clogging and incomplete drainage: By concentrating the drainage holes (especially multiple holes) at the lowest point of the guide surface where the liquid gathers (such as the lowest point at the bottom of the submerged equipment compartment), a "collection zone" is formed, ensuring that the liquid can be discharged immediately after it arrives, and is not easy to leave residue. Even if some holes are partially blocked by small debris, the other holes can still guarantee the drainage function, and the system has high reliability.

[0018] 3. Simple and reliable structure, requiring no additional maintenance: The entire drainage structure is based entirely on physical configuration, requiring no power components (such as water pumps), electronic sensors, or moving parts. It is integrated into the chassis body, adding almost no extra cost, weight, or points of failure, and has the advantages of being maintenance-free and having a long service life.

[0019] 4. Enhanced environmental adaptability and protection capabilities: This design is specifically tailored to the high-frequency water wading and spraying operations of firefighting robots. It can quickly drain dangerous water that has intruded into the equipment compartment, fundamentally preventing malfunctions caused by short circuits and equipment corrosion, ensuring the continuity of firefighting operations and the safety of core equipment. Furthermore, combined with sealing technology, it forms a superior protection strategy of "prevention and drainage integration."

[0020] In summary, this utility model, through its ingenious integrated structure of "flow guidance + directional discharge," systematically solves the drainage problem of the chassis of fire-fighting robots in a minimalist physical way, demonstrating outstanding practicality, reliability, and economy. Attached Figure Description

[0021] To make the above-mentioned objectives, technical solutions, and beneficial effects of this utility model clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the fire-fighting robot chassis with drainage structure of this utility model; Figure 2 yes Figure 1 The side view focuses on showing the structural schematic diagram of the guide surface; Figure 3 yes Figure 1 The diagram shows a bottom view (from below) of the chassis structure. Detailed Implementation

[0023] The following will refer to the appendix Figures 1 to 3This document provides a detailed and complete description of the technical solution of this utility model. Those skilled in the art will understand that modifications, equivalent substitutions, or improvements can be made to the following embodiments without departing from the spirit and essence of this utility model, and all such modifications and substitutions should fall within the protection scope of this utility model.

[0024] The fire-fighting robot chassis with drainage structure provided by this utility model has a chassis body 1 made of 304 stainless steel plate or 5052 aluminum alloy plate with a thickness of 3-5mm through laser cutting, bending and welding processes. The chassis body 1 has a rectangular frame structure with high structural strength and corrosion resistance. Its upper bearing surface 11 is used to install the robot's power system, fire extinguishing system and other core modules.

[0025] The core innovation of this utility model lies in the systematic drainage design of the bearing surface 11. The bearing surface 11 is not a simple plane, but rather formed in one piece by a large hydraulic press, creating multiple guide surfaces 12 with clearly defined flow-guiding functions. In this preferred embodiment, the guide surfaces 12 are designed to include two inclined surfaces sloping from the center of the chassis body 1 towards both sides. The first guide surface 121 is an inclined surface sloping towards the front end of the chassis, with its inclination angle (α) optimized to 2-5°; the second guide surface 122 is an inclined surface sloping towards the rear end of the chassis, with its inclination angle (β) optimized to 2-4°. This angle has been verified through fluid simulation and experiments, ensuring drainage speed while avoiding excessive occupation of vertical space on the chassis or affecting the stability of the upper equipment installation due to excessively large angles. Furthermore, the surface of the guide surfaces 12 can be treated with a brushed or sprayed anti-slip and wear-resistant coating, which facilitates rapid water flow and increases friction during equipment installation.

[0026] To achieve efficient final drainage of the liquid, a long strip-shaped main drainage channel can be formed on the chassis body 1 at the lowest point of the flow guide surface 12—that is, at the lowest point of both sides of the chassis. Simultaneously, for equipment requiring the most waterproof protection, a sunken equipment compartment 14 is stamped onto the chassis body 1. In this embodiment, the sunken equipment compartment 14 is specifically a pump compartment for installing a booster self-priming water pump. Its bottom wall 141 itself constitutes an independent, steeper local flow guide surface, which slopes towards the lowest convergence point located at the center of the rear of the compartment. At this lowest convergence point, multiple drainage holes 13, each with a diameter of 8mm, are concentrated and formed at a density of approximately 9 holes per square decimeter. This three-stage drainage path design of "large-area flow guide → small-area convergence → multi-point concentrated discharge" is key to the efficient drainage of this embodiment.

[0027] To enhance the reliability and long-term effectiveness of the drainage structure, this invention may also include valuable optimization details not detailed in the claims. For example, a removable anti-clogging filter or grille can be added above or below the drainage hole 13. The mesh size of this filter is smaller than the aperture, effectively preventing large particles such as leaves and gravel from entering or clogging the hole, and facilitating regular cleaning. Furthermore, the transition between the side wall and bottom wall of the sunken equipment chamber 14 uses a smooth transition with an R-angle of not less than 5mm, rather than a right angle. This effectively prevents dirt accumulation and further promotes the flow of liquid towards the collection point.

[0028] When the firefighting robot wades through water, traverses rain and fog, or gets splashed by its own sprinkler system, a large amount of liquid accumulates on the chassis bearing surface 11. At this time, the two guide surfaces 12 come into play: the water flow in the central area is quickly diverted to both sides to prevent large-scale water accumulation in the central equipment area; the water flow on both sides accelerates along the slope to the edge and can be directly discharged outside the vehicle through the main drainage channel. At the same time, even if some water droplets splash in or seep into the critical pump compartment (sunken equipment compartment 14) through gaps, the steep local guide surface at the bottom of the compartment will immediately guide it to the lowest collection point. Since multiple drainage holes 13 are concentrated at this point, the seeping liquid is almost completely discharged instantly upon arrival, preventing any harmful water accumulation in the compartment. Actual tests show that after traversing a simulated wading depth of 30cm, the residual water in the critical equipment compartment of the chassis using this drainage structure can be reduced by more than 95% compared to the traditional flat chassis, and the drainage process can be effectively completed whether the robot is stationary or in motion.

[0029] The drainage concept of this utility model can be implemented through various specific structures, which provides strong support for the scope of protection. For example, in another embodiment, the guide surface 12 can also be designed as a unidirectional inclined plane pointing from the rear end to the front end of the chassis, so that all water flow is directed to a concentrated drainage area on one side of the front or rear of the chassis. This may be more optimized for robot models with internal equipment layout biased to one side. In addition, the shape of the drainage hole 13 is not limited to a circle, but can also be an elliptical or elongated drainage gap; the guide surface 12 can also be constructed by welding multiple pre-formed inclined plates, rather than being stamped as a single piece. These variations do not deviate from the core concept of this utility model of "actively guiding and concentrating drainage through a pre-set physical structure".

[0030] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A fire-fighting robot chassis with drainage structure, comprising a chassis body (1) for carrying equipment and providing a mounting base, characterized in that: The chassis body (1) has at least one guide surface (12) on its bearing surface (11) for guiding the flow of liquid; the chassis body (1) also has at least one drain hole (13) that is in fluid communication with the end of the guide surface (12), and the guide surface (12) and the drain hole (13) constitute a drainage structure for directional discharge of water on the surface of the chassis.

2. The fire-fighting robot chassis according to claim 1, characterized in that: The guide surface (12) is an inclined or curved surface that slopes from the central area or one side of the chassis body (1) toward the location of the drainage hole (13).

3. The fire-fighting robot chassis according to claim 2, characterized in that: The inclination angle of the guide surface (12) is 2° to 5°.

4. The fire-fighting robot chassis according to claim 3, characterized in that: The chassis body (1) has a sunken equipment compartment (14) for installing specific functional components, and the drainage hole (13) is opened at the bottom of the sunken equipment compartment (14).

5. The fire-fighting robot chassis according to claim 4, characterized in that: The sunken equipment compartment (14) is a pump compartment for installing a booster self-priming water pump, and its bottom wall is part or all of the guide surface (12).

6. The fire-fighting robot chassis according to claim 5, characterized in that: There are multiple drainage holes (13) located at the bottom of the sunken equipment compartment (14), which are concentrated in the lowest area of ​​the sunken equipment compartment (14) in the direction of gravity.

7. The fire-fighting robot chassis according to claim 6, characterized in that: The multiple drainage holes (13) are arranged in an array or along a predetermined drainage path.

8. The fire-fighting robot chassis according to any one of claims 1 to 3, characterized in that: The front and / or rear edges of the chassis body (1) are provided with upward-folding water-blocking flanges.

9. The fire-fighting robot chassis according to any one of claims 1 to 3, characterized in that: The guide surface (12) is an integral structure formed by stamping, bending or welding the plate of the chassis body (1).

10. The fire-fighting robot chassis according to any one of claims 1 to 3, characterized in that: The diameter of the drainage hole (13) is 5 mm to 20 mm.

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