Multi-section variable-diameter trailer flood prevention pump water supply mechanism for fire fighting
The multi-stage variable diameter trailer-mounted flood control pump water supply mechanism solves the problems of inconvenient movement and insufficient water supply flexibility of existing trailer-mounted flood control pumps, realizes rapid water delivery and flexible water supply, and improves fire response efficiency and automated control of the equipment.
Patent Information
- Application Number
- CN202520068373.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing trailer-mounted flood control pumps are inconvenient in terms of mobility and water supply flexibility. Water flow is difficult to deliver quickly and powerfully, and the connection of water hoses is not flexible enough to be adjusted according to actual conditions.
A multi-stage variable diameter trailer-mounted flood control pump water supply mechanism was designed, which includes a variable diameter connecting pipe, multiple connecting pipes, a flow sensor, a pressure sensor and a control unit. By automatically adjusting the pump speed and operating mode, it can accelerate water flow and provide flexible water supply. It is also equipped with a storage box, a base trolley and a buffer shock absorption system to improve mobility.
It enables rapid and powerful delivery of water to designated locations, improves water supply efficiency and flexibility, reduces the burden on firefighters, enhances the automation control and safety of the equipment, and extends the service life of the water pump.
Smart Images

Figure CN223536623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a water supply device for a fire-fighting trailer-mounted flood control pump, specifically a multi-stage variable diameter trailer-mounted flood control pump water supply mechanism, belonging to the field of fire-fighting equipment technology. Background Technology
[0002] Fire-fighting trailer-mounted flood control pumps are specially designed to respond to special disasters such as flood rescue and drought relief. These devices typically feature large flow rates, high lift, and self-priming capabilities, enabling them to quickly deliver large amounts of water and improve the efficiency of rescue and drainage efforts.
[0003] However, existing trailer-mounted flood control pumps typically only have one pump body. When moving them, firefighters usually need to carry them on their shoulders or find a temporary trolley, which is inconvenient. Moreover, their outlet is usually directly connected to the water hose, which cannot increase the kinetic energy of the water flow. The water flow is difficult to deliver quickly and powerfully to the place where it is needed. Furthermore, the number of water hoses that can be connected is difficult to adjust flexibly according to the actual situation. When it is necessary to add water hoses, the connected water hoses must be disassembled and then a diversion pipe head must be installed to connect multiple water hoses, which is inflexible.
[0004] To address these issues, we provide a multi-stage variable diameter trailer-mounted flood control pump water supply mechanism for fire fighting. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides a multi-stage variable diameter trailer-mounted flood control pump water supply mechanism for fire fighting, and the specific technical solution is as follows:
[0006] A fire-fighting multi-stage variable diameter trailer-mounted flood control pump water supply mechanism includes a protective box. One side of the protective box is connected to an inlet pipe, and the other side is connected to a drain pipe. A variable diameter connecting pipe is connected to the side end of the drain pipe. A first connecting pipe is connected to the side end of the variable diameter connecting pipe. Multiple second connecting pipes are connected to the side end of the first connecting pipe. Each second connecting pipe includes a bend and a detection pipe. An electric valve is connected between the bend and the detection pipe. A base trolley is provided at the lower end of the protective box, and a storage box is connected to the upper end of the base trolley.
[0007] Preferably, the protective box is made of high-strength, corrosion-resistant metal material, and a water pump and a battery are installed inside the protective box. The water inlet pipe is connected to the water pump's pumping end, and the drain pipe is connected to the water pump's draining end.
[0008] Preferably, the inlet pipe and the outlet pipe have the same radius, the reducing connecting pipe is frustoconical, its small end is connected to the first connecting pipe, and the connection between the second connecting pipe and the first connecting pipe is chamfered.
[0009] Preferably, the bend is a curved pipe without any bends or angles, the side end of the detection pipe is connected to a connecting sleeve, the side end of the detection pipe can be connected to a water hose, and the storage box stores multiple water hoses.
[0010] Preferably, a connecting sleeve is connected to the side end of the water inlet pipeline, and a flow sensor and a pressure sensor are connected inside the water inlet pipeline and the detection pipe. A control unit is connected to the side end of the protective box, and the control unit is connected to the flow sensor, the pressure sensor, and each electric valve via wires.
[0011] Preferably, the base trolley includes a support plate and rollers, with a buffer pad provided between the support plate and the protective box, and the rollers are divided into swivel wheels and fixed wheels.
[0012] Preferably, a spring damping assembly is connected between the support plate and the roller, a hook and a traction rope are connected to the side end of the support plate, and a handle is connected to the side end of the protective box.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This fire-fighting multi-stage variable diameter trailer-mounted flood control pump water supply mechanism is equipped with variable diameter connecting pipes. The variable diameter connecting pipes reduce the radius of the drainage pipeline, which accelerates the water flow through the connecting pipes, thus giving the water flow greater kinetic energy. With the installation of first and second connecting pipes, the water flow, after acceleration, enters the first connecting pipe and then enters multiple second connecting pipes. The radius of the second connecting pipes is reduced again, which further increases the kinetic energy of the water flow. By increasing the kinetic energy of the water flow multiple times, the device helps to deliver water to the place where it is needed more quickly and powerfully. In fire-fighting and flood control scenarios, it can improve the efficiency of water supply, allowing water to reach farther distances or higher heights. At the same time, by setting multiple second connecting pipes, it can be flexibly adjusted according to the actual situation. For example, in some areas with larger local fires or deeper water accumulation, more water can be directed to the corresponding second connecting pipes, thereby achieving targeted water supply operations and improving the overall response effect.
[0015] 2. This fire-fighting multi-section variable diameter trailer-mounted flood control pump water supply mechanism is equipped with a storage box containing multiple water hoses. The hoses can be connected according to the actual water supply distance to ensure water supply capacity at the fire scene. The base trolley facilitates the movement of the device, increasing its flexibility and reducing the burden on firefighters when carrying water hoses. Hooks and tow ropes are also provided. The hooks allow for easy connection to fire trucks or other towing vehicles, while the tow ropes facilitate manual pulling of the device.
[0016] 3. This fire-fighting multi-stage variable diameter trailer-mounted flood control pump water supply mechanism is equipped with a flow sensor, a flow control unit, and a control unit. The two sensors monitor the flow and pressure data of the water supply in real time and transmit the data to the control unit. The control unit automatically adjusts the pump speed and operating mode according to preset parameters (such as the flow and pressure requirements of fire-fighting water and the target flow of flood control drainage). At the same time, the control unit can also be connected to remote monitoring equipment, which allows operators to monitor and operate it in real time from places far away from the water supply facility (such as fire command center or flood control dispatch room). This device can be remotely operated and monitored through an automated control and monitoring system, improving the convenience and safety of operation.
[0017] 4. The water supply mechanism of this fire-fighting multi-section variable diameter trailer-mounted flood control pump is equipped with a buffer pad and a spring shock absorption assembly. The spring shock absorption assembly can reduce the vibration transmitted from the rollers to the support plate, while the buffer pad can reduce the vibration transmitted from the support plate to the protective box. Therefore, under the action of the spring shock absorption assembly and the buffer pad, the vibration impact on the water pump inside the protective box during movement can be effectively reduced, thereby ensuring the stable operation of the water pump and extending its service life. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a front view schematic diagram of the present utility model;
[0020] Figure 3 This is a top view of the present invention;
[0021] Figure 4 This is a schematic diagram of the second connecting pipe structure of this utility model;
[0022] Figure 5 This is a schematic cross-sectional view of the second connecting pipe of this utility model.
[0023] Attached Figure Descriptions: 1. Protective Box; 2. Inlet Pipe; 3. Drainage Pipe; 4. Reducing Connecting Pipe; 5. First Connecting Pipe; 6. Second Connecting Pipe; 601. Bend; 602. Detection Pipe; 603. Electric Valve; 7. Base Trolley; 701. Support Plate; 702. Roller; 703. Spring Shock Absorber Assembly; 704. Hook; 705. Traction Rope; 8. Storage Box; 9. Flow Sensor; 10. Flow Sensor; 11. Control Unit; 12. Buffer Pad; 13. Handle. Detailed Implementation
[0024] The present invention will now be further described with reference to the accompanying drawings.
[0025] Please see Figure 1 — Figure 5 The system includes a protective box 1, which is made of high-strength, corrosion-resistant metal material to ensure its structural strength and effectively protect the internal equipment. One side of the protective box 1 is connected to a water inlet pipe 2, and the other side is connected to a drain pipe 3. The water inlet pipe 2 and the drain pipe 3 have the same radius. The protective box 1 is equipped with a water pump and a battery. The water inlet pipe 2 is connected to the water pump's pumping end, and the drain pipe 3 is connected to the water pump's draining end. When the water pump is started, it pumps water through the water inlet pipe 2 and then injects the water into the drain pipe 3.
[0026] A reducing pipe 4 is connected to the side of the drainage pipe 3. A first connecting pipe 5 is connected to the side of the reducing pipe 4. The reducing pipe 4 is frustoconical, and its small end is connected to the first connecting pipe 5. When water flows through the reducing pipe 4, the flow radius decreases, which can accelerate the water flow and increase its kinetic energy. Multiple second connecting pipes 6 are connected to the side of the first connecting pipe 5. The radius of the second connecting pipe 6 is smaller than that of the first connecting pipe 5. Therefore, the water flow will increase its kinetic energy again when it enters the second connecting pipe 6. The connection between the second connecting pipe 6 and the first connecting pipe 5 is chamfered. This setting can effectively reduce the scouring and wear of the connection between the two by the water flow.
[0027] The second connecting pipe 6 includes a bend 601 and a detection pipe 602. An electric valve 603 is connected between the bend 601 and the detection pipe 602. The bend 601 is a curved pipe without any bends or angles, thus avoiding increased wear caused by water flow erosion at the bends. Connecting sleeves are connected to the side ends of the detection pipe 602 and the inlet pipe 2. The connecting sleeves are used to connect to the water hose. Flow sensors 9 and pressure sensors 10 are connected inside the inlet pipe 2 and the detection pipe 602. A control unit 11 is connected to the side end of the protective box 1. The control unit 11 is connected to the flow sensors 9, pressure sensors 10, and each electric valve 603 via wires. The two sensors monitor the flow rate and pressure data of the water supply in real time and transmit the data to the control unit 11. The control unit 11 automatically adjusts the speed and operating mode of the water pump according to preset parameters.
[0028] A base plate trolley 7 is provided at the lower end of the protective box 1, which facilitates the movement of the device. A storage box 8 is connected to the upper end of the base plate trolley 7 for storing water hoses. The base plate trolley 7 includes a support plate 701 and rollers 702. A buffer pad 12 is provided between the support plate 701 and the protective box 1 to reduce the vibration transmitted from the support plate 701 to the protective box 1. The rollers 702 are divided into omnidirectional wheels and fixed wheels, which facilitate the forward movement and turning of the base plate trolley 7. The support plate 701 and the rollers A spring damping assembly 703 is connected between rollers 702. The spring damping assembly 703 is used to reduce the vibration transmitted from rollers 702 to support plate 701. A hook 704 and a traction rope 705 are connected to the side of support plate 701. A handle 13 is connected to the side of protective box 1. The hook 704 can facilitate the connection of the device to the vehicle. The traction rope 705 is used for easy manual pulling. When the traction rope 705 is not in use, it can be wrapped around the handle 13 to prevent the traction rope 705 from affecting the movement of the device.
[0029] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.
Claims
1. A fire-fighting multi-section variable diameter trailer-mounted flood control pump water supply mechanism, comprising a protective box (1), characterized in that: The protective box (1) is connected to a water inlet pipe (2) on one side and a drain pipe (3) on the other side. The drain pipe (3) is connected to a reducing pipe (4) on one side. The reducing pipe (4) is connected to a first connecting pipe (5) on one side. The first connecting pipe (5) is connected to a plurality of second connecting pipes (6) on one side. The second connecting pipe (6) includes a bend (601) and a detection pipe (602). An electric valve (603) is connected between the bend (601) and the detection pipe (602). The protective box (1) is equipped with a base plate trolley (7) at the lower end. The base plate trolley (7) is connected to a storage box (8) at the upper end.
2. The water supply mechanism for a multi-stage variable diameter trailer-mounted flood control pump for fire fighting according to claim 1, characterized in that: The protective box (1) is made of high-strength, corrosion-resistant metal material. The protective box (1) is equipped with a water pump and a battery. The water inlet pipe (2) is connected to the water pump pumping end, and the drain pipe (3) is connected to the water pump draining end.
3. The water supply mechanism for a multi-stage variable diameter trailer-mounted flood control pump for fire fighting according to claim 1, characterized in that: The water inlet pipe (2) and the drainage pipe (3) have the same radius. The variable diameter connecting pipe (4) is frustoconical, and its small end is connected to the first connecting pipe (5). The second connecting pipe (6) is chamfered at the connection with the first connecting pipe (5).
4. The water supply mechanism for a multi-stage variable diameter trailer-mounted flood control pump for fire fighting according to claim 1, characterized in that: The bend (601) is a bend without any bends or angles. The side end of the detection tube (602) is connected to a connecting sleeve. The side end of the detection tube (602) can be connected to a water hose. The storage box (8) stores multiple water hoses.
5. The water supply mechanism for a multi-stage variable diameter trailer-mounted flood control pump for fire fighting according to claim 1, characterized in that: The water inlet pipeline (2) is connected to a connecting sleeve on its side. The water inlet pipeline (2) and the detection pipe (602) are both connected to a flow sensor (9) and a pressure sensor (10). The protective box (1) is connected to a control unit (11) on its side. The control unit (11) is connected to the flow sensor (9), the pressure sensor (10), and each electric valve (603) via wires.
6. The water supply mechanism for a multi-stage variable diameter trailer-mounted flood control pump for fire fighting according to claim 1, characterized in that: The base trolley (7) includes a support plate (701) and rollers (702). A buffer pad (12) is provided between the support plate (701) and the protective box (1). The rollers (702) are divided into omnidirectional wheels and fixed wheels.
7. A fire-fighting multi-stage variable diameter trailer-mounted flood control pump water supply mechanism according to claim 6, characterized in that: A spring damping assembly (703) is connected between the support plate (701) and the roller (702). A hook (704) and a traction rope (705) are connected to the side end of the support plate (701). A sleeve handle (13) is connected to the side end of the protective box (1).