WO2023116387A1

WO2023116387A1 - Emergency apparatus for operation machinery, and fire-fighting truck

Info

Publication number: WO2023116387A1
Application number: PCT/CN2022/136056
Authority: WO
Inventors: 王肖; 胡磊; 谢世聪
Original assignee: 三一汽车制造有限公司
Priority date: 2021-12-23
Filing date: 2022-12-02
Publication date: 2023-06-29
Also published as: CN114146351A

Abstract

Provided in the present application are an emergency apparatus for operation machinery, and a fire-fighting truck. The emergency apparatus comprises an emergency power source expansion interface and a signal control apparatus, wherein after an electric connection between the emergency power source expansion interface and an emergency power source is established, the emergency power source is connected to an electric control circuit of operation machinery, so as to supply power to a main controller and an emergency switching valve of the operation machinery; the main controller receives a driving signal for a target element in the operation machinery that is sent by a signal control apparatus; and the main controller controls, in response to the driving signal, an action state of a control valve for supplying power to the target element, and controls the emergency switching valve to adjust a conduction state of a hydraulic oil circuit of the target element. By means of the emergency apparatus for operation machinery, and the fire-fighting truck provided in the present application, an external emergency power source can be connected to an electric control circuit of operation machinery by using an emergency power source expansion interface, such that electric control over some key fire-fighting elements in an emergency state can be realized; and a user can perform an emergency operation by means of a signal control apparatus, such that an operation process is effectively simplified, the emergency response time is shortened and operation risks are avoided.

Description

Emergency device and fire truck for operating machinery

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202111593261.5 filed on December 23, 2021, and the title of the invention is "An emergency device for working machinery and a fire truck", which is fully incorporated herein by reference.

technical field

The application relates to the field of machinery, in particular to an emergency device for a working machine and a fire truck.

Background technique

In the field of construction machinery, the backup emergency system is a standard configuration. Taking a fire truck as an example, the switch and reversing of the control valves of each component are controlled by electrical signals during normal operation; but when the fire truck falls into a state of no power or power, it needs to be activated emergency system.

In the prior art, due to the power failure of the electronic control system, the operator needs to manually switch the control valves of related components for emergency operation, and the operation method is cumbersome.

Since the control valves of the related components of each component are distributed, the range of movement during manual emergency operation is large and it takes a long time. In addition, the manual operation position of each control valve is not good, and there may be safety hazards such as crawling and stepping into the air.

Contents of the invention

This application provides an emergency device for a working machine and a working machine, which is used to solve the problem that once the working machine falls into a state of no power and no power in the prior art, the electric control system will fail to Defects in emergency operations to effectively improve the operating efficiency of the emergency system of the operating machinery.

In the first aspect, the present application provides an emergency device for a working machine, including: an emergency power supply extension interface and a signal control device; after the electrical connection between the emergency power supply expansion interface and the emergency power supply is established, the emergency power supply is connected to the The electric control circuit supplies power to the main controller and the emergency switching valve of the working machine; the main controller receives the driving signal sent by the signal control device to the target element in the working machine; the main controller responds to the The drive signal is used to control the action state of the control valve supplying power to the target element, and to control the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element.

According to an emergency device for working machinery provided by the present application, the emergency power supply includes a first-type emergency power supply and a second-type emergency power supply; when different types of emergency power supplies are connected to the emergency power supply expansion interface, the main controller controls Powering different groups of target components.

According to an emergency device for working machinery provided by the present application, the target element includes at least one of the following groups: a default power supply element group, an optional power supply element group, and a default non-power supply element group; the default power supply element group, Including: at least one of top-mounted actuators or bottom-mounted actuators; the optional power supply element group includes: at least one of signal feedback elements, warning elements or lighting elements; the default non-power supply element group includes : At least one of other components on the working machine except the default power supply component group and the optional power supply component group.

According to an emergency device for a working machine provided by the present application, the first type of emergency power supply includes: one of a backup battery or a battery pack; the second type of emergency power supply includes: one of a commercial power supply or a generator Correspondingly, the emergency power supply expansion interface includes at least one of a backup battery sub-interface, a city electronics interface, a generator sub-interface or a battery pack sub-interface.

According to an emergency device for working machinery provided by the present application, after establishing the electrical connection between the emergency power supply expansion interface and the first type of emergency power supply, the main controller responds to the drive signal to control the control valve that supplies power to the target element and control the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element, specifically including:

If the target element is the default power supply element group, the main controller responds to the drive signal, controls the control valve supplying power to the target element to close, and controls the action of the emergency switching valve to conduct the power supply of the target element. Hydraulic oil circuit;

If the target component is an optional power supply component group or a default non-power supply component group, the main controller does not perform any action in response to the driving signal.

According to an emergency device for working machinery provided by the present application, after the electrical connection between the emergency power supply expansion interface and the second type of emergency power supply is established, the main controller responds to the drive signal to control the control valve that supplies power to the target element and control the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element, specifically including:

If the target component is a default power supply component group or the target component is an optional power supply component group, the main controller responds to the drive signal, controls the control valve that supplies power to the target component to close, and controls the emergency The switching valve acts to conduct the hydraulic oil circuit of the target element;

If the target element is a default unpowered element group, the main controller responds to the driving signal without performing any action.

According to an emergency device for a working machine provided by the present application, the signal control device is a remote control device; the remote control device is connected to the main controller through communication.

According to an emergency device for operating machinery provided by the present application, the signal control device is a vehicle-mounted central control panel; the vehicle-mounted central control panel communicates with the main controller; After the electrical connection of the power supply, the emergency power supply supplies power to the vehicle central control panel.

According to an emergency device for a working machine provided by the present application, the working machine is a fire engine; the body-mounted actuator includes: at least one of a boom, a ladder, or a fire-fighting workbench.

According to an emergency device for a working machine provided by the present application, the bottom-mounted actuator includes: a telescopic actuator for outriggers.

In a second aspect, the present application also provides a fire truck, including: a fire truck body, and any one of the above-mentioned emergency devices for working machinery.

The operating machinery emergency device and fire truck provided by this application can use the emergency power expansion interface to connect the external emergency power supply to the electric control circuit of the operating machinery, which can realize the electronic control of some key fire-fighting components in an emergency state, and the user can pass The signal control device performs emergency operations, thereby effectively simplifying the operation process, shortening the emergency time, and avoiding operational risks.

Description of drawings

In order to more clearly illustrate the technical solutions in this application or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are the present For some embodiments of the application, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural schematic diagram of an emergency device for a working machine provided by the present application;

Fig. 2 is a schematic diagram of the work flow of the operating machinery emergency device provided in the present application in the energy-saving mode;

Fig. 3 is a schematic diagram of the work flow of the emergency device of the working machine provided by the present application in the flexible mode.

Detailed ways

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described embodiments are part of the embodiments of this application , but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that, in the description of the embodiments of the present application, the terms "comprising", "comprising" or any other variations thereof are intended to cover a non-exclusive inclusion, so that a process, device, article or equipment including a series of elements Include not only those elements, but also other elements not expressly listed or inherent in such a process, device, article, or equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, apparatus, article or equipment comprising said element. The orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the referred device or element must Having a particular orientation, being constructed and operating in a particular orientation, and therefore not to be construed as limiting the application. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The working machinery emergency device and the fire truck provided by the embodiment of the present application are described below with reference to FIGS. 1-3 .

Fig. 1 is a structural schematic diagram of the emergency device of the operating machinery provided by the application, as shown in Fig. 1, mainly including but not limited to: emergency power supply extension interface and signal control device, wherein:

After the electrical connection between the emergency power extension interface and the emergency power supply is established, the emergency power supply is connected to the electric control circuit of the working machine to supply power for the main controller and the emergency switching valve of the working machine;

The main controller receives the driving signal for the target element in the working machine sent by the signal control device;

In response to the drive signal, the main controller controls the action state of the control valve supplying power to the target element, and controls the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element.

It should be noted that the emergency device for working machines provided in this application is mainly applicable to pure electric working machines, that is, vehicles powered by on-board batteries or on-board battery packs to perform related work tasks.

The emergency device for the working machine provided by this application can use the emergency power supply as the backup power supply of the working machine if the operator finds that the working machine is in a state of no electricity or power during the process of performing the work task. It is connected to the emergency power extension interface of the emergency device of the working machine, so as to make the electrical connection between the emergency power supply and the emergency power extension interface.

It should be noted that the types of output ports of different types of emergency power sources will be different. For example, when the emergency power source is a storage battery, the output port of the storage battery outputs DC power; The output port outputs alternating current, which needs to be converted into direct current first. Therefore, the emergency device for working machinery provided by this application sets the emergency power extension interface as an integration of multiple sub-interfaces of different types according to the possible types of emergency power sources connected, so that it can match different types of emergency power sources.

In addition, since the output voltages of different emergency power sources are also quite different, the emergency device for operating machinery provided by this application corresponds to different types of emergency power sources, and the corresponding sub-interfaces are provided with DC converters and /or a voltage regulating transformer, to cooperate with the conversion of the power input by each sub-interface, so as to meet the power supply requirements of various components related to the operation of the emergency system of the working machine.

After the controller of the working machine detects that the electrical connection between the emergency power supply and the emergency power supply expansion interface is established, the emergency power supply is connected to the electric control circuit of the working machine itself, so as to use the emergency power supply as the main controller of the working machine and Emergency switching valve and other power supply.

Among them, the emergency switching valve is used to communicate with the oil passage corresponding to the target element when performing the operation on the target element, so that the main control can control the control of the target element after receiving the driving signal of the target element sent by the user through the signal control device. The valve acts, and at the same time, since the oil circuit corresponding to the target element is in the passage, it can respond to the action of the control valve and perform the corresponding operation.

Assuming that the target component is the arm frame, when the operating machine is in a state of no electricity and no power, the operator connects the output port of the backup battery to the emergency power expansion interface, so that the backup battery is connected to the electric control circuit of the operating machine, and the operating machine The main controller and emergency switching valve are powered to start emergency operation.

Taking the working machine as a fire truck as an example, the operator can send a driving signal to the main control through the signal control device to retract the boom. After receiving the driving signal, the main controller first controls the switching action of the emergency switching valve so that the oil circuit related to the action of retracting the boom is conducted, and then controls the action of the control valve corresponding to the action of retracting the boom to control The forward and reverse direction of the oil pump is used to drive the oil pump until the task of retracting the boom is completed.

It should be noted that when the main controller provided in the present application responds to the drive signal, the main controller determines the action state of the control valve that supplies power to the target element, which may include: according to the type of emergency power supply connected , and combined with the action authority of the target element, determine the action state of the control valve of the target element, such as controlling the control valve to switch, also including maintaining the control valve inactive. Correspondingly, the controller can control the conduction direction of the emergency switching valve according to the action state of the control valve of the target element.

For example, in the process of emergency operation, if the connected emergency power supply is a backup battery, due to the limited power supply capacity of the battery, some components need to be turned off, such as signal feedback components (various sensors, etc.). If the driving signal input by the operator is to supply power to the signal feedback element by mistake, the main controller responds to the driving signal and does not execute the control valve action for supplying power to the signal feedback element, that is, the backup battery is not used to supply power to the signal feedback element. At the same time, the state of the emergency switching valve is not adjusted.

Optionally, the operating machine involved in the present application may be any construction machine or transport vehicle such as an excavator, a transport vehicle, a paver, or a fire engine, which is not specifically limited in this application.

The operating machinery emergency device provided by this application can use the emergency power expansion interface to connect the external emergency power supply to the electric control circuit of the operating machinery, which can realize the electronic control of some key fire-fighting components in an emergency state, and the user can control the device through the signal Carry out emergency operations, thereby effectively simplifying the operation process, shortening the emergency time, and avoiding operational risks.

Based on the content of the above embodiments, as an optional embodiment, the emergency power supply includes a first-type emergency power supply and a second-type emergency power supply; when different types of emergency power supplies are connected to the emergency power supply extension interface, the main The controller controls the powering of different groups of target elements.

Optionally, the first type of emergency power supply may include: one of backup batteries or battery packs; the second type of emergency power supply may include: one of commercial power or generators; correspondingly, the The emergency power extension interface includes at least one of the backup battery sub-interface, the city electronics interface, the generator sub-interface or the battery pack sub-interface.

The emergency power supply expansion interface provided by this application can include multiple sub-interfaces, such as: backup battery sub-interface, city electronics interface, generator sub-interface or battery pack sub-interface, to meet the needs of operators according to actual scenarios. Access to emergency power options.

In addition, the emergency power supply can be divided into two categories according to the power supply continuity ability, the backup battery or battery pack with weak power supply continuity ability is divided into the first category of emergency power supply, and the mains power supply or generator with strong power supply continuity ability is divided into the second category Emergency Power Supply.

The controller of the working machine can flexibly select the working mode of the emergency system according to the connection established between the emergency power extension interface and the emergency power supply.

For example: after the operator connects the mains power to the mains electronic interface of the emergency power expansion interface, the main controller determines that the emergency system’s working mode is the flexible mode according to the connection status of the emergency power expansion interface; After being connected to the backup battery sub-interface of the emergency power expansion interface, the main controller determines that the working mode of the emergency system is the energy-saving mode according to the connection status of the emergency power expansion interface.

It should be noted that, affected by the power supply continuity, the emergency system is in different working modes, and the components that can be allowed to supply power are different.

For example, in the flexible mode, some elements such as lighting elements are allowed to be powered, while in the energy-saving mode, in order to ensure the normal operation of some key elements, the lighting elements are not allowed to be powered to save power.

The operating machinery emergency device provided by this application is equipped with an emergency power expansion interface that can adapt to the access of different types of emergency power sources, and can switch to different emergency working modes according to the continuous power supply capacity of the connected emergency power source. Ensure the execution of emergency work of the operating machinery to the greatest extent.

Based on the content of the above embodiment, as an optional embodiment, the target component is one of the default power supply component group, the optional power supply component group or the default non-power supply component group; the default power supply component group includes: At least one of the top-mounted actuator or the bottom-mounted actuator; the optional power supply element group includes: at least one of signal feedback elements, warning elements or lighting elements; the default non-power supply element group includes: the At least one of other components on the working machine except the default power supply component group and the optional power supply component group.

The operating machinery emergency devices provided in this application are divided into three categories according to the degree of necessity for the relevant components involved in the emergency work of the operating machinery to be implemented in emergency work.

Among them, the default power supply component group refers to the components that must perform actions in emergency work, the default non-power supply component group refers to components that cannot be executed in emergency work, and the optional power supply component group refers to components that can be The continuous power supply capability of the connected emergency power supply is used to select whether to perform actions.

Fig. 2 is a schematic diagram of the work flow of the emergency device of the operating machinery provided by the application in the energy-saving mode. As an optional embodiment, as shown in Fig. 2, after the electrical connection between the emergency power supply expansion interface and the first type of emergency power supply is established , the main controller responds to the drive signal, controls the action state of the control valve that supplies power to the target element, and controls the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element, specifically including :

Specifically, when the working machine falls into a state of no electricity and no power, after the operator connects the first type of emergency power supply, such as a backup battery or a battery pack, to the emergency power supply expansion interface, the default emergency power supply The working mode of the system is energy-saving mode, at this time the main power pump will be turned off.

If the operator inputs a driving signal to the main controller through the signal control device to act on any target element in the default power supply element group, the main controller will respond to this driving instruction and control the action of the control valve related to the target element, and at the same time The action of the emergency switching valve is controlled to conduct the hydraulic oil circuit of the target element, and at this time, the target element will perform a corresponding action. Assuming that the target component is a bodywork actuator, such as boom, ladder, workbench, etc., it will perform corresponding actions to retract the above bodywork actuator.

If the operator inputs a drive signal to the main controller through the signal control device to act on any target element in the optional power supply component group or the default non-power supply component group, in consideration of power saving, the main controller responds to this As a result of the drive command, no action is performed.

Fig. 3 is a schematic diagram of the working process of the emergency device of the operating machinery provided by the application in the flexible mode. As another optional embodiment, as shown in Fig. 3, the electrical connection between the emergency power supply extension interface and the second type of emergency power supply is established Afterwards, the main controller responds to the driving signal, controls the action state of the control valve that supplies power to the target element, and controls the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element, specifically include:

If the target component is a default power supply component group or the target component is an optional power supply component group, the main controller responds to the driving signal, controls the control valve that supplies power to the target component to close, and controls the emergency The switching valve acts to conduct the hydraulic oil circuit of the target element;

Specifically, when the operating machine falls into a state of no electricity and no power, after the operator connects the second type of emergency power supply, such as mains power or a generator with weak continuous power supply capability, to the emergency power supply expansion interface, the default emergency The operating mode of the system is flexible mode, at which time the active power pump will be turned off.

If the operator inputs a drive signal to the main controller through the signal control device to act on any target element in the default power supply element group or the optional power supply element, the main controller will respond to this drive command and control the relevant components of the target element. The control valve acts, and at the same time, the emergency switching valve is controlled to conduct the hydraulic oil circuit of the target component, and the target component will perform a corresponding action at this time. Assuming that the target component is a bodywork actuator, such as a jib, a ladder, a workbench, etc., it will perform corresponding actions to retract the bodywork actuator.

If the operator inputs a driving signal to the main controller through the signal control device to act on any target component among the non-powered components, for the sake of power saving, the main controller will not perform any action in response to this driving instruction. .

The operating machinery emergency device provided by this application can automatically identify the type of emergency power supply connected to the emergency power supply expansion interface, so as to respond differently to the operation instructions input by the operator, and can ensure the complete execution of emergency actions to the greatest extent.

Based on the content of the above embodiments, as an optional embodiment, the signal control device is a remote control device; the remote control device is connected to the main controller through communication.

Wherein, the communication connection between the remote control device and the main controller of the working machine can be wireless communication, such as Bluetooth communication; or wired communication, such as RS-232 serial port communication, which is not specifically limited in this application.

As an optional embodiment, the operator can also establish a connection between the mobile terminal and the station communication module to communicate with the main controller through the vehicle communication module, so that the user can remotely control the operating machine through the mobile terminal The emergency system runs and automatically executes emergency actions.

As another optional embodiment, the above-mentioned signal control device can also be a vehicle-mounted central control panel; the vehicle-mounted central control panel communicates with the main controller; After being connected, the emergency power supply supplies power to the vehicle central control panel.

The present application can also realize the automatic control of the emergency system by means of the vehicle-mounted central control panel. After the operator establishes the electrical connection between the emergency power supply expansion interface and the emergency power supply, the emergency power supply supplies power to the vehicle central control panel and the main control, and the operator can return to the cab and click on the relevant display on the vehicle central control panel. The buttons on the interface realize the control of each target component in the emergency system, so that in harsh environments, risks can be avoided to a certain extent and the safety of operators can be further ensured.

The operating machinery emergency device provided by this application can, in an emergency state, allow the operator to perform emergency operations on the operating machinery through the integrated signal control device to control the actions of related target components one by one, which improves the existing technology that requires operators The disadvantages of manually operating each control valve simplifies the operation process and shortens the emergency time, and the entire operation machine can respond quickly and avoid risks.

Optionally, the above-mentioned upper-mounted actuator, the working machine is a fire truck; it may include: at least one of equipment such as a boom, a ladder, or a fire-fighting workbench; the lower-mounted actuator mainly includes: outrigger telescopic actuators and other related equipment.

The present application also provides a fire truck, which, in the case of including a fire truck body, also includes the working machine emergency device provided in any one of the above embodiments.

It should be noted that the fire truck provided by the embodiment of the present application can be combined with the emergency device of the working machine described in any of the above embodiments in a specific emergency state to realize standardized emergency actions, which will not be described in this embodiment.

The fire truck provided by this application can use the emergency power supply extension interface to connect the external emergency power supply to the electric control circuit of the working machine, which can realize the electronic control of some key fire-fighting components in the emergency state, and the user can use the signal control device for emergency control. Operation, thereby effectively simplifying the operation process, shortening the emergency time, and avoiding operation risks.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic Discs, optical discs, etc., include several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the devices described in various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

An emergency device for a working machine, comprising: an emergency power extension interface and a signal control device;

After the electrical connection between the emergency power extension interface and the emergency power supply is established, the emergency power supply is connected to the electric control circuit of the working machine to supply power for the main controller and the emergency switching valve of the working machine;

The main controller receives the driving signal for the target element in the working machine sent by the signal control device;

In response to the drive signal, the main controller controls the action state of the control valve supplying power to the target element, and controls the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element.
The emergency device for working machinery according to claim 1, wherein the emergency power supply includes a first-type emergency power supply and a second-type emergency power supply;

When different types of emergency power supplies are connected to the emergency power extension interface, the main controller controls to supply power to different groups of target components.
The emergency device for working machinery according to claim 2, wherein the target element includes at least one of the following groups: a default power supply element group, an optional power supply element group, and a default non-power supply element group;

The default power supply component group includes: at least one of the upper-installed actuators or the lower-installed actuators;

The optional power supply component group includes: at least one of signal feedback components, warning components or lighting components;

The default non-power supply component group includes: at least one of other components on the working machine except the default power supply component group and the optional power supply component group.
The emergency device for working machinery according to claim 2, wherein, the first type of emergency power supply includes: one of backup batteries or battery packs; the second type of emergency power supply includes: commercial power or generators a kind of

Correspondingly, the emergency power supply expansion interface includes at least one of a backup battery sub-interface, a mains electrical interface, a generator sub-interface or a battery pack sub-interface.
The emergency device for working machinery according to claim 3, wherein, after the electrical connection between the emergency power supply extension interface and the first type of emergency power supply is established, the main controller responds to the drive signal to control the power supply for the target element Control the action state of the valve, and control the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element, specifically including:

If the target element is the default power supply element group, the main controller responds to the drive signal, controls the control valve supplying power to the target element to close, and controls the action of the emergency switching valve to conduct the power supply of the target element. Hydraulic oil circuit;

If the target component is an optional power supply component group or a default non-power supply component group, the main controller does not perform any action in response to the driving signal.
The emergency device for working machinery according to claim 3, wherein, after the electrical connection between the emergency power supply extension interface and the second type of emergency power supply is established, the main controller responds to the drive signal to control the power supply for the target element Control the action state of the valve, and control the emergency switching valve to adjust the conduction state of the hydraulic oil circuit of the target element, specifically including:

If the target component is a default power supply component group or the target component is an optional power supply component group, the main controller responds to the drive signal, controls the control valve supplying power to the target component to close, and controls the emergency The switching valve acts to conduct the hydraulic oil circuit of the target element;

If the target element is a default unpowered element group, the main controller responds to the driving signal without performing any action.
The emergency device for working machinery according to claim 1, wherein the signal control device is a remote control device;

The remote control device is in communication with the main controller.
The emergency device for working machinery according to claim 1, wherein the signal control device is a vehicle-mounted central control panel;

The vehicle central control panel is communicatively connected with the main controller;

After the electrical connection between the emergency power supply expansion interface and the emergency power supply is established, the emergency power supply supplies power to the vehicle-mounted central control panel.
The working machine emergency device according to claim 3, wherein the working machine is a fire truck;

The bodywork actuator includes: at least one of a jib, a ladder, or a firefighting workbench.
The emergency device for a working machine according to claim 3, wherein the lowering actuator comprises: a telescopic actuator for outriggers.
A fire truck, comprising: a fire truck body, and the working machine emergency device according to any one of claims 1-10.