A hydraulic linkage system for a fire truck

By designing a hydraulic linkage system for fire trucks, multiple fire trucks can be linked together. The system utilizes hydraulic pumps and hydraulic interfaces for long-distance water supply and drainage, solving the problem of insufficient rescue capabilities of fire trucks in special situations and improving the multi-purpose functions of fire trucks.

CN224387957UActive Publication Date: 2026-06-23SHIZUISHAN HUINONG DISTRICT FIRE RESCUE BRIGADE (SHIZUISHAN HUINONG DISTRICT FIRE RESCUE BUREAU)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIZUISHAN HUINONG DISTRICT FIRE RESCUE BRIGADE (SHIZUISHAN HUINONG DISTRICT FIRE RESCUE BUREAU)
Filing Date
2025-03-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

When faced with special situations such as forest fires or large-scale flooding, existing fire trucks cannot effectively coordinate with each other, resulting in limited rescue capabilities.

Method used

Design a hydraulic linkage system for fire trucks, including a hydraulic pump, a hydraulic boom, an electric winch, a hydraulic water pump, and connecting pipes, to enable linkage of multiple fire trucks. The system connects via hydraulic pumps and hydraulic interfaces, and utilizes the hydraulic water pump for long-distance water supply and drainage.

Benefits of technology

It enables the coordinated operation of multiple fire trucks, improving fire rescue capabilities. It allows for long-distance water supply and drainage even without fire water supply equipment, enhancing the multi-purpose functionality of fire trucks, especially their rescue capabilities in fire and flood situations.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

A fire truck hydraulic linkage system, comprising a fire truck, a mounting table at the tail of the fire truck, a hydraulic boom mounted on the mounting table, a hydraulic pump mounted at the bottom engine of the fire truck through a transmission shaft, one of the hydraulic pump is connected to the hydraulic boom, a hydraulic interface is installed on the fire truck, the other of the hydraulic pump is connected to the hydraulic interface, and a hydraulic oil cooler is installed on the loop of the hydraulic interface. The application can realize the autonomous water supply of the fire truck, and also realize the linkage of multiple fire trucks, realize the long-distance and continuous fire water supply, thereby improve the fire rescue ability, at the same time, by using the function, the long-distance drainage of the urban waterlogging area can be realized, the flood control and disaster relief ability of the fire truck is improved, the fire truck is multipurpose, a fire rescue team can realize diversified rescue ability, further, the fire truck can be modified, the function of the fire truck is improved, and the maintenance investment is less in later period, and the use is reliable.
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Description

Technical Field

[0001] This utility model relates to the field of fire truck technology, and in particular to a hydraulic linkage system for fire trucks. Background Technology

[0002] Fire trucks are vehicles used by fire and rescue teams for firefighting, assisting in firefighting, or fire rescue. They can carry a large amount of water and are suitable for fighting a variety of common fires with firefighting tools such as water guns and water cannons. They can directly use water to extinguish fires and also provide water to other equipment. They are also equipped with various rescue tools and equipment, such as demolition tools and life-saving equipment, for rescuing trapped people in fires or other emergencies.

[0003] Fire trucks are typically used not only for firefighting but also for urban flood relief and rescue operations. Therefore, fire and rescue teams are equipped with multiple fire trucks for different rescue operations. However, each fire truck operates independently and is used for specific situations. When encountering special circumstances, such as forest fires or large-scale flooding disasters, rescue capabilities are limited, and the fire trucks cannot effectively coordinate with each other. To address this issue, we propose a hydraulic linkage system for fire trucks. Utility Model Content

[0004] This application provides a hydraulic linkage system for fire trucks to enhance the functionality of fire trucks, thereby improving fire rescue capabilities.

[0005] This application provides a hydraulic linkage system for a fire truck, including a fire truck, a mounting platform at the rear of the fire truck, a hydraulic boom mounted on the mounting platform, a hydraulic pump mounted on the engine at the bottom of the fire truck via a drive shaft, one of the hydraulic pumps being connected to the hydraulic boom, a hydraulic interface being installed on the fire truck, the other of the hydraulic pumps being connected to the hydraulic interface, and a hydraulic oil cooler being installed on the circuit of the hydraulic interface.

[0006] It also includes an electric winch installed on the hydraulic boom, the electric winch having a hydraulic water pump suspended by a lifting chain, the hydraulic water pump being connected to the hydraulic interface through a hydraulic pipeline, and a connecting pipe installed on the hydraulic water pump.

[0007] Preferably, there are multiple fire trucks.

[0008] Preferably, the fire truck is also equipped with a fire hose connector and a matching fire hose.

[0009] Preferably, the fire truck is also equipped with a large-diameter water tank connector, which is connected to the hydraulic water pump.

[0010] Preferably, the connecting pipe on the hydraulic water pump is connected to the large-diameter water tank connector of the fire truck.

[0011] Preferably, multiple fire trucks are connected by a connecting pipe.

[0012] Preferably, the diameter of the large-diameter water tank connector is 200mm.

[0013] Preferably, the fire truck is equipped with at least one storage compartment.

[0014] Preferably, the hydraulic water pump is equipped with a buoyancy support.

[0015] Preferably, the electric winch is detachably suspended from the hydraulic boom.

[0016] As can be seen from the above technical solutions, this application provides a hydraulic linkage system for fire trucks. This application can realize the functions of water replenishment for fire trucks, long-distance water supply and drainage for multiple fire trucks, etc. Specifically, when there is no fire water supply equipment nearby during the mission, the fire truck can be moved to a bridge or riverbank, and the hydraulic water pump can be installed on the hydraulic boom via an electric winch. Then, the hydraulic water pump is connected to the hydraulic interface through a hydraulic pipeline, and the outlet end of the hydraulic water pump is connected to the inlet end of the large-diameter water tank connector of the fire truck through a connecting pipe. The hydraulic pump is started by the fire truck, thereby starting the hydraulic water pump to supply water to the fire truck, and can also supply water to other fire trucks. When there is no fire water source at the fire rescue site, and the water consumption is large, and there is a water source nearby, The system controls the hydraulic boom to place the hydraulic water pump in the water, connecting the fire truck and the hydraulic water pump via a connecting pipe. Simultaneously, connecting pipes or fire hoses connect the fire trucks. The hydraulic water pump delivers water to the fire truck, where an internal pump converts the high-flow, low-pressure water from the original hydraulic pump into high-pressure water, which is then transported over a long distance to another fire truck. This process is repeated with multiple fire trucks, enabling long-distance water delivery and continuous water supply for firefighting. Similarly, when urban flooding occurs, the fire trucks described in this application can enter the affected area and use the hydraulic water pump to drain water to other areas. When there are no effective drainage points within the range of the hydraulic water pump, multiple fire trucks can be connected in series to achieve long-distance drainage, thus solving urban drainage problems.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The hydraulic pump and hydraulic interface can be used not only for the control of the hydraulic water pump in this application, but also for the connection of the hydraulic exhaust fan for smoke extraction in fire scene, and for connecting various high-power hydraulic equipment for fire rescue.

[0019] 2. With the hydraulic water pump installed, the fire truck can be supplied with water and drained from urban flooded areas, thus realizing the multi-purpose function of the fire truck.

[0020] 3. By using an electric winch and a hydraulic boom, the hydraulic water pump can be moved to multiple locations to achieve water intake at multiple locations, thereby improving the drainage and water intake capabilities in various complex environments.

[0021] In summary, this application enables fire trucks to operate autonomously and coordinate multiple fire trucks to provide continuous fire water supply over long distances, thereby improving fire rescue capabilities. Furthermore, this function can also be used to drain water from urban flooded areas over long distances, enhancing the fire trucks' flood control and disaster relief capabilities. This allows fire trucks to serve multiple purposes, enabling a single fire rescue team to achieve diversified rescue capabilities. Moreover, this application allows for the modification of existing fire trucks at a low cost, enhancing their functionality with minimal maintenance effort and ensuring reliable operation. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0023] Fig. 1 This is a schematic diagram of a fire truck structure based on a hydraulic linkage system for fire trucks proposed in this utility model.

[0024] Fig. 2 This is a schematic diagram of the bottom structure of a fire truck according to the present invention, which describes a hydraulic linkage system for fire trucks.

[0025] Fig. 3 This is a schematic diagram of the structure of a hydraulic linkage system for a fire truck proposed in this utility model;

[0026] In the diagram: 1. Fire truck, 2. Electric winch, 3. Hydraulic boom, 4. Mounting platform, 5. Hydraulic oil cooler, 6. Hydraulic interface, 7. Hydraulic water pump, 8. Buoyancy support, 9. Lifting chain, 10. Large diameter water tank connector, 11. Placement compartment, 12. Connecting pipe, 13. Hydraulic pump, 14. Drive shaft, 15. Fire hose connector, 16. Fire hose. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0028] See Figs. 1-3This application discloses a hydraulic linkage system for fire trucks. This system aims to enhance the rescue capabilities of fire trucks and effectively link fire trucks from one or more fire stations to improve fire rescue capabilities. The system includes a fire truck 1 (a conventional water tanker fire truck), a mounting platform 4 at the rear of the fire truck 1, a hydraulic boom 3 mounted on the mounting platform 4, and a hydraulic pump 13 installed at the engine location at the bottom of the fire truck 1 via a drive shaft 14. This hydraulic pump 13 provides hydraulic pressure to the hydraulic boom 3 and also provides hydraulic control via an external hydraulic interface 6. The drive shaft 14... Universal joints are provided at both ends to connect to the hydraulic pump 13 and the engine respectively. Specifically, one of the hydraulic pump 13 is connected to the hydraulic boom 3 for controlling the hydraulic boom 3. For details on the control of the hydraulic boom 3, please refer to the prior art. The fire truck 1 is equipped with a hydraulic interface 6. The other end of the hydraulic pump 13 is connected to the hydraulic interface 6 for connecting hydraulic equipment. It is worth noting that this application also has a hydraulic oil tank corresponding to the hydraulic pump 13. A hydraulic oil cooler 5 is installed on the circuit of the hydraulic interface 6 to cool the hydraulic oil so that the hydraulic oil can be used continuously.

[0029] It also includes an electric winch 2 installed on the hydraulic boom 3. The electric winch 2 is detachably suspended on the hydraulic boom 3. Specifically, an anti-detachment hook can be installed on the hydraulic boom 3, and the hydraulic boom 3 is suspended on the anti-detachment hook. The electric winch 2 is equipped with a hydraulic water pump 7 via a lifting chain 9. The hydraulic boom 3 controls the position of the hydraulic water pump 7 by controlling the electric winch 2. Furthermore, the hydraulic water pump 7 is connected to the hydraulic interface 6 via a hydraulic pipeline. The hydraulic pipeline is a detachable connection, that is, it is connected when in use and removed after use. It is placed in the fire truck 1. A connecting pipe 12 is installed on the hydraulic water pump 7 for water supply and drainage.

[0030] Example 1

[0031] Fire truck 1 is also equipped with a large-diameter water tank connector 10, which is the interface for water inlet and outlet to the fire water tank. Its diameter is larger than that of a conventional fire hose connector. Specifically, the diameter of the large-diameter water tank connector 10 is 200mm. There are two connectors, one for water inlet and one for water outlet. It is worth noting that the outlet end is connected to the water pump inside fire truck 1, meaning that the drainage section has a certain drainage pressure. The large-diameter water tank connector 10 is connected to the hydraulic water pump 7. When performing rescue missions, after the water in the fire truck is used up, if there is a water source nearby, fire truck 1 can be moved to the vicinity of the water source. The hydraulic water pump 7 is installed on the hydraulic boom 3 via the electric winch 2 and connected to the hydraulic interface 6. The hydraulic water pump 7 is placed in the water and connected to the water inlet end of the large-diameter water tank connector 10 of fire truck 1. The hydraulic water pump 7 is started to supply water to the fire truck 1. Then, the truck is quickly disassembled and used for fire rescue.

[0032] Example 2

[0033] There are multiple fire trucks 1. When a continuous water supply is needed in the rescue area, multiple fire trucks 1 are arranged between the water source and the rescue location. Each fire truck serves as a node for long-distance water supply. Each fire truck 1 is equipped with a large-diameter water tank connector 10, which is connected to a hydraulic water pump 7. The large-diameter water tank connector 10 of the initial fire truck 1 is connected to the hydraulic water pump 7. Then, multiple fire trucks 1 are connected through connecting pipes 12, that is, the subsequent trucks connect the inlet and outlet ends of the large-diameter water tank connector 10 in sequence. Multiple fire trucks 1 are connected in series for long-distance water supply. Furthermore, each fire truck 1 is also equipped with a fire hose connector 15 and a matching fire hose 16. The fire hose connectors 15 of two adjacent fire trucks 1 can also be connected. Because the diameter of this end is small, the water pressure is large. After multiple trucks are connected in series, ultra-long-distance water delivery can be carried out to solve the problem of continuous water supply over ultra-long distances.

[0034] Example 3

[0035] When heavy rainfall causes flooding in low-lying roads, firefighters quickly assemble a hydraulic pump 7 and place it in the flooded area using a hydraulic boom 3 and an electric winch 2. The pump 7 is then activated to rapidly drain the water from the flooded area. In this application, the hydraulic pump 13 is an 8-inch hydraulic axial flow pump. With a large-diameter water tank connector 10 (diameter 200mm) and a 60m connecting pipe 12, it can reach a distance of 500-600m. 3 The drainage capacity of / hour can meet the drainage work in low-lying areas. When there is no effective drainage point within a 60m range, the connecting pipe 12 can be connected to the fire truck 1, and the drainage can be carried out over a long distance by pressurizing the fire truck 1.

[0036] In this utility model, the fire truck 1 is provided with at least one storage compartment 11 for storing the hydraulic water pump 7, hydraulic connection pipes, and connecting pipes 12, so as to facilitate carrying with the vehicle and quick assembly.

[0037] In this utility model, in order to prevent the hydraulic water pump 7 from touching the bottom, a buoyancy support 8 is provided on the hydraulic water pump 7. The buoyancy support 8 is installed on the upper part of the buoyancy support 8 and does not affect the normal water supply. Specifically, the buoyancy support 8 can be an inflatable type, installed around the upper part or the top of the hydraulic water pump 7, restricting the position of the hydraulic water pump 7 in the water, thereby improving the water suction quality.

[0038] As can be seen from the above technical solution, this application can realize the functions of water replenishment for fire truck 1, long-distance water supply and drainage for multiple fire trucks, etc. Specifically, when there is no fire water supply equipment around the fire truck, the fire truck can be moved to a bridge or riverbank, and the hydraulic water pump 7 can be installed on the hydraulic boom 3 via the electric winch 2. Then, the hydraulic water pump 7 is connected to the hydraulic interface 6 through the hydraulic pipeline, and the outlet end of the hydraulic water pump 7 is connected to the inlet end of the large-diameter water tank connector 10 of the fire truck 1 through the connecting pipe 12. The hydraulic pump 13 is started by the fire truck 1, thereby starting the hydraulic water pump 7 to supply water to the fire truck 1. At the same time, it can also supply water to other fire trucks. When there is no fire water source at the fire rescue site, and the water consumption is large, and there is a water source nearby, the hydraulic boom 3 is controlled to raise the hydraulic water pump 7 to the fire truck 1. The hydraulic pump 7 is placed in the water and connected to the fire truck 1 and the hydraulic pump 7 through the connecting pipe 12. At the same time, the fire truck 1 is connected to the fire truck 1 through the connecting pipe 12 or the fire hose 16. The hydraulic pump 7 pumps water into the fire truck 1. Using the water pump inside the fire truck 1, the original high-flow, low-pressure water from the hydraulic pump 7 is converted into high-pressure water and transported over a long distance to another fire truck. Then, multiple fire trucks are connected in sequence to achieve long-distance water delivery and provide continuous water supply for fire fighting. Similarly, when urban flooding occurs, the fire truck 1 of this application enters the area and uses the hydraulic pump 7 to drain the water to other areas. When there is no effective drainage point within the range of the hydraulic pump 7, multiple fire trucks can also be connected in series to achieve long-distance drainage and solve the urban drainage problem.

[0039] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0040] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A hydraulic linkage system for a fire truck, comprising a fire truck (1), a mounting platform (4) at the rear of the fire truck (1), and a hydraulic boom (3) mounted on the mounting platform (4), characterized in that: A hydraulic pump (13) is installed at the bottom engine of the fire truck (1) via a drive shaft (14). One of the hydraulic pumps (13) is connected to the hydraulic boom (3). A hydraulic interface (6) is installed on the fire truck (1). The other of the hydraulic pumps (13) is connected to the hydraulic interface (6). A hydraulic oil cooler (5) is installed on the circuit of the hydraulic interface (6). It also includes an electric winch (2) installed on the hydraulic boom (3), the electric winch (2) is equipped with a hydraulic water pump (7) by a lifting chain (9), the hydraulic water pump (7) is connected to the hydraulic interface (6) through a hydraulic pipeline, and a connecting pipe (12) is installed on the hydraulic water pump (7).

2. The hydraulic linkage system for a fire truck according to claim 1, characterized in that, The fire truck (1) consists of multiple vehicles.

3. A fire truck hydraulic linkage system according to any one of claims 1-2, characterized in that, The fire truck (1) is also equipped with a fire hose connector (15) and a matching fire hose (16).

4. A fire truck hydraulic linkage system according to any one of claims 1-2, characterized in that, The fire truck (1) is also equipped with a large-diameter water tank connector (10), which is connected to the hydraulic water pump (7).

5. A hydraulic linkage system for a fire truck according to claim 4, characterized in that, The connecting pipe (12) on the hydraulic water pump (7) is connected to the large-diameter water tank connector (10) of the fire truck (1).

6. A hydraulic linkage system for a fire truck according to claim 5, characterized in that, Multiple fire trucks (1) are connected by a connecting pipe (12).

7. A hydraulic linkage system for a fire truck according to claim 4, characterized in that, The diameter of the large-diameter water tank connector (10) is 200mm.

8. A hydraulic linkage system for a fire truck according to claim 1, characterized in that, The fire truck (1) is equipped with at least one storage compartment (11).

9. A hydraulic linkage system for a fire truck according to claim 1, characterized in that, The hydraulic water pump (7) is equipped with a buoyancy support (8).

10. A hydraulic linkage system for a fire truck according to claim 1, characterized in that, The electric winch (2) is detachably suspended on the hydraulic boom (3).