Integrated installation structure of a booster self-suction water pump of a fire-fighting robot

Abstract

The utility model discloses a kind of booster self-suction water pump integrated installation structure of fire-fighting robot, belong to fire-fighting robot technical field.The structure includes the robot chassis with water pump cabin, cabin is integrated with booster self-suction water pump, the engine and water pump battery for its power supply.Water pump is installed in the bottom of cabin by water pump fixed support, and shock pad with metal clamping plate is arranged between the two to isolate vibration.Water pump water inlet and water outlet are connected by water inlet quick connector and water outlet quick connector respectively, realize pipeline quick disassembly.Water pump cabin top surface is provided with inclined flow guide surface, bottom bearing surface is designed with drainage leak hole, to realize automatic drainage.The utility model realizes the efficient shock absorption of water pump system, quick maintenance and reliable integration, significantly improves the operation stability and maintenance convenience of fire-fighting robot extinguishing system in harsh operating environment.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting robot technology, specifically to the installation structure of key components of a fire-fighting robot fire extinguishing system, and in particular to an integrated installation structure for a self-priming water pump for a fire-fighting robot. Background Technology

[0002] Self-priming booster pumps are the core power unit for modern firefighting robots to achieve autonomous firefighting capabilities. They enable robots to draw and pressurize firefighting water directly from natural water sources (such as ponds and rivers) without relying on external fire truck power, thus significantly extending the robot's operational radius and response flexibility. These pumps typically feature high flow rates, high head, and a certain self-priming depth, and generate significant vibration and impact during operation.

[0003] Currently, in firefighting robots integrating self-priming booster pumps, the pump installation and fixing methods mostly employ relatively simple structures. A common practice is to weld or bolt a mounting base to the robot chassis, directly and rigidly fixing the pump to this base with bolts, or adding ordinary rubber washers at the bolt connections for vibration damping. The connection of the inlet and outlet water pipes generally uses traditional flange or threaded connections, requiring tools for tightening and resulting in time-consuming disassembly and assembly. The routing and layout of the water cannon pipeline also often lack systematic planning, potentially leading to excessive pipe bends, interference with other components, or difficulties in maintenance.

[0004] The existing installation solutions have the following main shortcomings: First, simple rigid or primary vibration-damping installations cannot effectively isolate the water pump, especially the low-to-medium frequency vibrations generated when a high-power diesel engine direct-drive water pump is operating. These vibrations are transmitted to the entire robot through the chassis, affecting not only the reliability of its precision electronic equipment (such as control systems and sensors), but also potentially causing structural fatigue or loosening of connections over long-term operation. Second, traditional flange or threaded connections are cumbersome and inefficient when quick pump replacement, maintenance, or filter replacement is required, making them unsuitable for emergency maintenance in fire environments. Furthermore, the chaotic piping layout not only occupies space but may also reduce pipe life and increase the risk of leakage due to stress concentration caused by friction and bending.

[0005] Therefore, in response to the problems of poor vibration reduction, inconvenient connection and maintenance, and unreasonable pipeline layout in the installation of booster self-priming water pumps in existing fire-fighting robots, there is an urgent need for an integrated special installation structure to achieve efficient vibration reduction, quick disassembly and assembly, and optimized layout, thereby ensuring the high reliability and maintainability of the fire extinguishing system and even the whole machine under harsh working conditions. Summary of the Invention

[0006] This utility model aims to overcome the defects of existing booster self-priming water pump installation structures in firefighting robots, and provides an integrated, highly reliable, and easy-to-maintain integrated installation structure for booster self-priming water pumps. Specifically, the purpose of this utility model is: 1. Solve the vibration transmission problem: Provide an efficient vibration damping installation solution that significantly isolates the vibration generated by the water pump and engine, protecting other precision components of the robot.

[0007] 2. Improved maintenance convenience: Through quick-connect interfaces and optimized layout, the water pump system pipelines and related components can be quickly disassembled and assembled, facilitating on-site inspection and component replacement.

[0008] 3. Optimize spatial layout and reliability: Within the limited space of the pump room, integrate power, pumps, power supply and pipelines in a reasonable way, and design an effective drainage structure to improve the system's operational stability and environmental adaptability in humid and complex environments.

[0009] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: An integrated installation structure for a self-priming water pump in a firefighting robot includes: A robot chassis, wherein an upward-opening water pump compartment is provided on the robot chassis; A booster self-priming water pump is installed in the pump compartment, with a rated flow rate of not less than 10 L / s and a maximum suction depth of not less than 7 m; An engine is located inside the water pump compartment, and its output end is connected to the drive end of the booster self-priming water pump to provide power to the water pump. A water pump mounting bracket is fixedly installed at the bottom of the water pump compartment to support and fix the booster self-priming water pump. A shock-absorbing component is disposed between the water pump mounting bracket and the mounting base of the booster self-priming water pump; The quick-connect assembly includes at least one inlet quick-connect fitting and one outlet quick-connect fitting, which are respectively connected to the inlet and outlet of the booster self-priming water pump.

[0010] Furthermore, a water pump battery is also provided at the bottom of the water pump compartment. The water pump battery is electrically connected to the starting circuit of the booster self-priming water pump to provide starting power.

[0011] Furthermore, the water pump mounting bracket is a frame structure, including two parallel transverse support beams and multiple longitudinal limiting plates connected between the two transverse support beams. The mounting base of the booster self-priming water pump is fixed to the transverse support beams by connectors.

[0012] Furthermore, the shock absorption assembly includes multiple shock absorption pads made of rubber or polyurethane elastomer, and each shock absorption pad has metal clamps on its upper and lower surfaces. The mounting base of the booster self-priming water pump is connected to the water pump fixing bracket by bolts passing through the shock absorption pads and metal clamps.

[0013] Furthermore, the quick-connect water inlet is a quick-connect female connector with a self-locking buckle, which is fixedly installed on the side wall of the robot chassis or the interface seat preset on the side wall of the pump compartment, and is connected to the inlet of the booster self-priming water pump through a first flexible connecting pipe.

[0014] Furthermore, the quick-connect water outlet is a snap-fit ​​male connector, which is directly connected to the outlet flange of the booster self-priming water pump and is used to quickly connect with the end female connector of the water outlet metal hose connected to the water cannon.

[0015] Furthermore, the top surface of the pump compartment is a guide surface that slopes from the center of the robot chassis in at least one direction, and the bottom bearing surface of the pump compartment is provided with multiple drainage holes.

[0016] Furthermore, it also includes a pipeline fixing assembly, which includes an inlet-side pipe clamp for fixing the first flexible connecting pipe and an outlet-side pipe clamp for fixing the outlet metal hose. The pipe clamps are fixed to the robot chassis or the water pump fixing bracket by a bracket.

[0017] Furthermore, the engine is connected to the drive end of the booster self-priming water pump via a transmission belt, and a belt tensioning pulley mechanism for tensioning the transmission belt is provided on the extension of the water pump fixing bracket or on an independent bracket.

[0018] Furthermore, the thickness of the damping pad is 18mm, and its static compression deformation is between 10% and 20% of the thickness.

[0019] Compared with the prior art, the present invention has the following significant advantages: 1. Excellent vibration isolation and overall machine protection: By using a shock-absorbing component consisting of a high-elasticity shock-absorbing pad with metal clamps, the vibration of the water pump and engine is flexibly isolated from the robot chassis, effectively suppressing the transmission of vibration to precision components such as the control system and sensors, greatly improving the reliability and lifespan of related equipment, and reducing operating noise.

[0020] 2. Extremely high maintenance efficiency and ease of operation: The quick-connect couplings at the inlet and outlet allow for rapid connection and disconnection of water pipes without tools, greatly facilitating pump maintenance, replacement, and cleaning of the suction pipe filter. The frame-type fixed support and clear pipe layout (secured by pipe clamps) keep the internal structure well-organized, making it easy to access and maintain all components.

[0021] 3. Compact and efficient integrated layout and environmental adaptability: The engine, water pump, starter battery, tensioning mechanism, and other components are all integrated into the water pump compartment, maximizing space utilization. The unique guide surface and drainage hole design quickly drains water from external or internal sources, preventing equipment immersion and ensuring system reliability in wading or sprinkler firefighting environments. An independent dedicated water pump battery ensures the stability of the starting circuit and avoids interference with the main control circuit.

[0022] 4. Stable and reliable power transmission: The belt tensioning pulley mechanism, integrated into the fixed bracket or installed independently, can easily adjust and maintain the appropriate tension of the transmission belt between the engine and the water pump, ensuring efficient and stable power transmission, preventing slippage or detachment, and improving the continuity of firefighting operations. Attached Figure Description

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model.

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall layout of the integrated installation structure of the booster self-priming water pump of this utility model on the chassis of a fire-fighting robot (the upper sheet metal parts can be hidden, and the pump compartment area is shown in the focus).

[0025] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the internal structure of the water pump compartment (the view of the outer shell is removed, focusing on the layout of the various components inside the compartment).

[0026] Figure 3 It is a three-dimensional structural diagram of the robot chassis, focusing on the guide surface of the water pump compartment, the drainage hole, and the installation position of the water pump battery.

[0027] In the accompanying drawings, the reference numerals represent the following components: 1. Robot chassis; 11. Guide surface; 12. Drainage hole; 33. Engine; 41. Boost self-priming water pump; 42. Water cannon; 421. Quick female connector; 43. Water pump compartment; 44. Water pump mounting bracket; 441. Transverse support beam; 442. Shock-absorbing pad; 45. Water pump battery; 461. Inlet quick connector; 462. Outlet quick connector; 47. Radiator. Detailed Implementation

[0028] The following will be combined with the appendix Figures 1 to 3 This invention provides a detailed, non-limiting description of the technical solution of this utility model. Those skilled in the art will understand that various modifications, substitutions, and alterations can be made to the specific details without departing from the spirit and scope of this utility model.

[0029] This utility model provides an integrated installation structure for a fire-fighting robot's booster self-priming water pump. The core design concept is to integrate the power and execution core of the fire-fighting system—the booster self-priming water pump 41 and its dedicated power source engine 33—as a highly integrated module, compactly and reliably arranged within a specially designed pump compartment 43 on the robot chassis 1. The pump compartment 43 is an upward-opening box-type structure, typically welded from steel plates, integrally formed with the chassis 1 or rigidly connected via high-strength bolts. Its side walls and top are covered by the robot's superstructure after the entire machine is assembled, forming a relatively independent equipment compartment.

[0030] The pump mounting bracket 44 is the load-bearing skeleton of the entire installation structure, fixed to the bottom center area of ​​the pump compartment 43 by welding or bolting. The bracket 44 adopts an open frame design, mainly composed of two parallel and longitudinally extending transverse support beams 441. The support beams 441 can be made of channel steel to provide sufficient bending strength. Between the two support beams 441, multiple longitudinal limiting plates (not shown in the figure) can be welded. These limiting plates not only enhance the overall rigidity of the frame, but their inner spacing is also precisely designed to form a small clearance fit with the side of the mounting base (or pump foot) at the bottom of the booster self-priming pump 41, serving as initial positioning and limiting the horizontal displacement of the pump. To isolate vibration, a vibration damping component is provided between each mounting base of the booster self-priming pump 41 and the mounting surface of the transverse support beam 441. In this embodiment, the vibration damping component consists of four independent vibration damping pads 442. Each damping pad 442 uses rubber (such as oil-resistant neoprene) or polyurethane as its elastic body, with a Shore hardness selectable between 50A and 70A to balance load-bearing and damping performance. Both the upper and lower surfaces of the damping pad 442 are vulcanized or bonded with Q235 steel plates approximately 2-3mm thick as metal clamps. During installation, high-strength bolts (such as M12 bolts with a performance grade of 8.8 or higher) are sequentially passed through the mounting holes on the water pump mounting base, upper metal clamp, damping pad elastomer, lower metal clamp, and transverse support beam 441, and finally tightened with lock nuts. By controlling the tightening torque of the bolts, the damping pad 442 can generate a preset compression amount (e.g., 2-4mm compression for a 20mm thick pad), thereby providing stable support while effectively absorbing and dissipating the multi-directional vibrations generated during water pump and engine operation using the damping characteristics of the elastomer, significantly reducing the structural noise and vibration amplitude transmitted to the chassis 1.

[0031] In terms of power transmission, the engine 33 is preferably a single-cylinder air-cooled diesel engine, which is arranged parallel to the booster self-priming water pump 41 on the same side or front and rear sides of the water pump mounting bracket 44, and can be powered by a drive belt (such as an A-type V-belt). To ensure the efficiency and reliability of the belt drive, a belt tensioner mechanism can be further provided. This mechanism can be an independent mounting bracket or designed as a cantilever extending outward from the side of the water pump mounting bracket 44. A tensioner is mounted on it through an adjustable eccentric seat or a strip hole. By rotating the adjusting bolt, the position of the tensioner relative to the output pulley of the engine 33 and the input pulley of the water pump 41 can be changed, thereby conveniently and accurately adjusting the tension of the drive belt, preventing slippage or jumping, and ensuring smooth and efficient power transmission. In order to dissipate heat from the engine 33 during operation, a radiator 47 can be installed above or beside the engine 33.

[0032] For electrical and auxiliary system integration, please refer to [link / reference]. Figure 2 and Figure 3Inside the pump compartment 43, a water pump battery 45 is also fixedly installed. This battery 45 is preferably a 12V valve-regulated lead-acid battery or a lithium iron phosphate battery, with a capacity sufficient to meet the power requirements of the water pump 41 starter motor and any possible water pump control unit. The battery 45 is housed in a dedicated battery box with shock-absorbing padding, which is bolted to a platform on one side of the bottom of the pump compartment 43, maintaining a certain distance from the water pump 41 and the engine 33 to avoid heat interference. The positive and negative terminals of the battery 45 are connected to the starter motor terminals of the booster self-priming water pump 41 via high-temperature resistant cables of sufficient cross-sectional area, forming an independent starting circuit. This design physically separates the high-current starting circuit from the low-voltage circuit of the robot's main control system, avoiding voltage surges during startup that could interfere with precision electronic equipment.

[0033] The quick-connect design of the pipe interfaces is key to the ease of maintenance of this structure. The female part of the inlet quick connector 461 (i.e., the quick female connector) is pre-fixed on a protruding, rigid interface seat on the front or side wall of the pump compartment 43. The inner side of this interface seat is connected to the inlet of the booster self-priming water pump 41 via a first flexible connecting pipe (such as a PVC hose or rubber hose reinforced with steel wire, the main body of the pipe is not shown in the figure). The two ends of the first flexible connecting pipe are usually fastened with stainless steel hose clamps. The external suction pipe (with a floating filter) only needs to have its male end inserted into the quick female connector, and a "click" sound indicates that the connection is complete, achieving tool-free quick connection. The male part of the outlet quick connector 462 (i.e., the flange-type quick male connector) is directly fastened to the outlet flange of the booster self-priming water pump 41 with bolts. The end of the outlet metal hose (the main body of the pipe is not shown in the figure) connecting to the water cannon 42 is equipped with a corresponding quick female connector 421, which can be aligned and pushed in to complete the high-pressure sealing connection. This dual quick-connect design allows all water circuits to be disconnected within one minute when a water pump needs to be replaced or deep maintenance is required, greatly improving maintenance efficiency.

[0034] To ensure neat and reliable piping and prevent wear or detachment due to vibration or movement, additional piping fixing components can be installed. The support portions of the inlet-side and outlet-side pipe clamps can be welded or bolted to the pump mounting bracket 44 or the inner wall of the pump compartment 43, respectively. These clamps (such as common double-hole clamps) are used to restrain the aforementioned first flexible connecting pipe and outlet metal hose close to the compartment wall or bracket, keeping their routing smooth, avoiding sharp bends, and limiting their swaying caused by water flow pulsation.

[0035] Finally, considering the water-related or spray-prone environments that firefighting robots often encounter, the bottom of the pump compartment 43 features a specialized waterproof and drainage design. Please refer to... Figure 2 and Figure 3The top surface of the pump compartment 43 is not horizontal, but is machined or stamped into a guide surface 11 that slopes backward (or to the rear) from the central area, with the slope angle preferably between 2° and 5°. Multiple drainage holes 12, with a diameter of 6-10 mm, are formed at a certain distribution density (e.g., 6-10 holes per square decimeter) on the bottom bearing surface of the pump compartment 43. When external water splashes in or water accumulates due to minor leaks in the internal joints, the water will flow rapidly along the guide surface 11 to the lower area under gravity and be directly discharged outside the compartment through the drainage holes 12, flowing to the ground. This passive drainage structure fundamentally eliminates the possibility of water accumulation inside the pump compartment 43, effectively protecting the water pump 41, engine 33, water pump battery 45, and electrical interfaces from water immersion damage.

[0036] In summary, this utility model, through the systematic combination of "high-efficiency shock-absorbing fixation," "dual quick-connect interfaces," "integrated layout within the cabin," and "active drainage design," not only solves the inherent problem of stable and reliable operation of high-power fire pumps on mobile robot platforms, but also greatly improves the maintainability and environmental adaptability of the core module from an engineering practice perspective. This specific embodiment has fully disclosed and detailed the technical solution; those skilled in the art can implement this utility model without creative effort based on this description and obtain all its beneficial effects.

Claims

1. A pressurized self-suction water pump integrated installation structure of a fire-fighting robot, characterized by, include: Robot chassis (1), on which an upward-opening water pump compartment (43) is provided. A booster self-priming water pump (41) is installed in the pump compartment (43), with a rated flow rate of not less than 10 L / s and a maximum suction depth of not less than 7 m; An engine (33) is located inside the water pump compartment (43), and its output end is connected to the drive end of the booster self-priming water pump (41) to provide power to the water pump. A water pump mounting bracket (44) is fixedly installed at the bottom of the water pump compartment (43) to support and fix the booster self-priming water pump (41). The shock-absorbing component is disposed between the water pump fixing bracket (44) and the mounting base of the booster self-priming water pump (41); as well as The quick-connect head assembly includes at least one inlet quick connector (461) and one outlet quick connector (462), which are respectively connected to the inlet and outlet of the booster self-priming water pump (41).

2. The integrated installation structure of the booster self-priming water pump according to claim 1, characterized in that, The bottom of the water pump compartment (43) is also provided with a water pump battery (45), which is electrically connected to the starting circuit of the booster self-priming water pump (41) to provide starting power.

3. The integrated installation structure of the booster self-priming water pump according to claim 1, characterized in that, The water pump mounting bracket (44) is a frame structure, including two parallel transverse support beams (441) and multiple longitudinal limiting plates connected between the two transverse support beams (441). The mounting base of the booster self-priming water pump (41) is fixed to the transverse support beams (441) by connectors.

4. The integrated installation structure of the booster self-priming water pump according to claim 1 or 3, characterized in that, The shock absorption assembly includes multiple shock absorption pads (442), which are made of rubber or polyurethane elastomer. Each shock absorption pad (442) has metal clamps on its upper and lower surfaces. The mounting base of the booster self-priming water pump (41) is connected to the water pump fixing bracket (44) by bolts that pass through the shock absorption pads (442) and the metal clamps.

5. The integrated installation structure of a booster and a self-priming water pump according to claim 1, wherein The quick-connector (461) is a quick-connect female connector with a self-locking buckle, which is fixedly installed on the side wall of the robot chassis (1) or the interface seat preset on the side wall of the pump compartment (43), and is connected to the inlet of the booster self-priming pump (41) through a first flexible connecting pipe.

6. The integrated installation structure of the booster self-priming water pump according to claim 5, characterized in that, The quick-connector (462) is a snap-fit ​​male connector that is directly connected to the outlet flange of the booster self-priming water pump (41) and is used to quickly connect with the end female connector (421) of the water outlet metal hose connected to the water cannon (42).

7. The integrated installation structure of a booster and a self-priming water pump according to claim 1, wherein The top surface of the pump compartment (43) is a guide surface (11) that is inclined from the center of the robot chassis (1) in at least one direction, and the bottom bearing surface of the pump compartment (43) is provided with multiple drainage holes (12).

8. The integrated installation structure of a booster and a self-priming water pump according to claim 6, wherein It also includes a pipeline fixing assembly, which includes an inlet-side pipe clamp for fixing the first flexible connecting pipe and an outlet-side pipe clamp for fixing the outlet metal hose. The pipe clamps are fixed to the robot chassis (1) or the water pump fixing bracket (44) by a bracket.

9. The integrated installation structure of the booster self-priming water pump according to claim 1, characterized in that, The engine (33) is connected to the drive end of the booster self-priming water pump (41) via a transmission belt. The extension of the water pump fixing bracket (44) or an independent bracket is provided with a belt tensioning wheel mechanism for tensioning the transmission belt.

10. The integrated installation structure of a booster and a self-priming water pump according to claim 4, wherein The thickness of the shock-absorbing pad (442) is 18 mm, and its static compression deformation is between 10% and 20% of its thickness.

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