CN113417909A - Hydraulic system, emergency guarantee equipment and mutual rescue equipment group - Google Patents
Hydraulic system, emergency guarantee equipment and mutual rescue equipment group Download PDFInfo
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- CN113417909A CN113417909A CN202110978171.1A CN202110978171A CN113417909A CN 113417909 A CN113417909 A CN 113417909A CN 202110978171 A CN202110978171 A CN 202110978171A CN 113417909 A CN113417909 A CN 113417909A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/001—Servomotor systems with fluidic control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/003—Systems with different interchangeable components, e.g. using preassembled kits
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- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the technical field of rescue and guarantee, in particular to a hydraulic system, emergency guarantee equipment with the hydraulic system and a mutual rescue equipment group with the emergency guarantee equipment. According to the hydraulic system, when the self power of the emergency guarantee equipment works normally, the emergency guarantee equipment can adopt the self power to provide power for the execution control unit of the vehicle and can also adopt the self power to provide power for the execution control units of other vehicles; when the power of the emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of the vehicle. The device combines the characteristics of group cooperative work of a plurality of devices during rescue and guarantee operation, and when one device loses power, the two devices can be mutually rescued by sharing power only by connecting the hydraulic systems of the two devices through two pipes. Greatly improves the reliability of the rescue and guarantee equipment. And the structure is compact, and the use is simple, convenient and quick.
Description
Technical Field
The invention relates to the technical field of rescue and guarantee, in particular to a hydraulic system, emergency guarantee equipment with the hydraulic system and a mutual rescue equipment group with the emergency guarantee equipment.
Background
When certain rescue and guarantee tasks are implemented, multiple groups are often cooperatively matched to complete a specified task, and if one device loses power, the device cannot complete the task, so that the completion of the whole task is influenced. This necessitates consideration of emergency protocols in rescue and security equipment with high timeliness and high reliability requirements.
It is generally considered to provide an emergency power oil source. The common emergency power oil source comprises an emergency motor pump set, an emergency internal combustion engine pump set and an emergency manual pump. The emergency motor-pump set needs to be provided with an emergency power supply, and because of the limitation of the capacity and the arrangement space of the electrical system of the whole machine, the power of the emergency motor-pump set is limited, and precious space resources of mobile equipment can be occupied. The emergency internal combustion engine pump set is limited by the arrangement space of the whole engine and the applicable working condition, so that the emergency internal combustion engine pump set is difficult to arrange, has limited power and high cost. Although the emergency manual pump is small in size and flexible in arrangement, the emergency manual pump is manpower-based, has very limited output power and can only be used as an emergency control oil source mostly. The conventional emergency power oil source is difficult to meet the requirements of high timeliness, high efficiency and high reliability of rescue guarantee equipment on the emergency oil source.
Therefore, for those skilled in the art, it is of practical significance to provide a hydraulic system, an emergency support device with the hydraulic system, and a mutual rescue equipment group with the emergency support device, so as to improve or solve at least one technical problem in the prior art to a certain extent.
Disclosure of Invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a hydraulic system which improves or solves at least one of the technical problems of the prior art to a certain extent.
The invention also aims to provide emergency guarantee equipment with the hydraulic system.
The invention also aims to provide a mutual rescue equipment group with the emergency safeguard equipment.
To solve the above problems, in one aspect, the present invention provides a hydraulic system for an emergency security apparatus,
the hydraulic control system comprises a logic control module, a first hydraulic interface, a second hydraulic interface, a third hydraulic interface, a fourth hydraulic interface, a fifth hydraulic interface and a sixth hydraulic interface;
the logic control module comprises a first working port, a second working port, a third working port and a fourth working port;
the first working port is connected with the first hydraulic interface, the second working port is connected with the third hydraulic interface, the second working port is also connected with the fifth hydraulic interface, the third working port is connected with the fourth hydraulic interface, the third working port is also connected with the sixth hydraulic interface, and the fourth working port is connected with the second hydraulic interface;
the hydraulic system has a first working state, a second working state and a third working state;
in a first working state of the hydraulic system, the oil way between the first working port and the second working port is communicated, the oil way between the third working port and the fourth working port is communicated, and oil flows to the third hydraulic port from the first hydraulic interface through the first working port and the second working port and then flows to the second hydraulic interface from the fourth hydraulic interface through the third working port and the fourth working port;
in a second working state of the hydraulic system, the oil way between the first working port and the second working port is communicated, the oil way between the third working port and the fourth working port is communicated, and oil flows to the fifth hydraulic port from the first hydraulic interface through the first working port and the second working port and then flows to the second hydraulic interface from the sixth hydraulic interface through the third working port and the fourth working port;
in a third working state of the hydraulic system, an oil path between the first working port and the second working port from the second working port to the first working port is cut off (directional one-way cut-off is sufficient, and whether the flow from the first working port to the second working port is cut off or not is sufficient), an oil path between the third working port and the fourth working port from the third working port to the fourth working port is cut off (directional one-way cut-off is sufficient, and whether the flow from the fourth working port to the third working port is cut off or not is sufficient), and oil flows from the fifth hydraulic interface to the third hydraulic interface and then flows from the fourth hydraulic interface to the sixth hydraulic interface.
As a further improvement of the hydraulic system, the logic control module comprises a first one-way valve, a cartridge valve and a reversing valve, an oil inlet of the first one-way valve is connected with a first working port, an oil outlet of the first one-way valve is connected with a second working port, the reversing valve comprises a first oil inlet and outlet, a second oil inlet and outlet, a third oil inlet and outlet, a fourth control oil port and a fifth control oil port, the first oil inlet and outlet and the fourth control oil port of the reversing valve are connected with an oil path between the oil outlet of the first one-way valve and the second working port, the fifth control oil port of the reversing valve is connected with an oil path between the oil inlet of the first one-way valve and the first working port, an oil inlet of the cartridge valve is connected with the third working port, an oil outlet of the cartridge valve is connected with the fourth working port, and the second oil inlet and outlet of the reversing valve is connected with an oil path between the oil outlet of the cartridge valve and the fourth working port, a control oil port of the cartridge valve is connected with a third oil inlet and outlet of the reversing valve, the third oil inlet and outlet is selectively connected with a first oil inlet and outlet or a second oil inlet and outlet, in a first working state or a second working state of the hydraulic system, the control pressure of a fifth control oil port of the reversing valve is higher than that of a fourth control oil port, the reversing valve is in the right position, the third oil inlet and outlet is connected with the second oil inlet and outlet, an oil inlet and an oil outlet of the cartridge valve are communicated, in a third working state of the hydraulic system, the control pressure of a fourth control oil port of the reversing valve is higher than that of a fifth control oil port (the pressure is zero or very low), the control force on the left side of the reversing valve is greater than that on the right side (the acting force and the spring force of the fifth control oil port on a valve core), the reversing valve is in the left position, and the third oil inlet and outlet is connected with the first oil inlet and outlet, and an oil inlet and an oil outlet of the cartridge valve are cut off.
As a further improvement of the hydraulic system, the logic control module further includes an overflow valve, an oil inlet of the overflow valve is connected with an oil path between an oil inlet of the first check valve and the first working port, and an oil outlet of the overflow valve is connected with an oil path between an oil outlet of the cartridge valve and the fourth working port.
As a further improvement of the hydraulic system, the logic control module includes a second check valve and a logic valve, an oil inlet of the second check valve is connected to the first working port, an oil outlet of the second check valve is connected to the second working port, an oil inlet of the logic valve is connected to the third working port, an oil outlet of the logic valve is connected to the fourth working port, a control port of the logic valve is connected to an oil path between the oil inlet of the second check valve and the first working port, in the first working state or the second working state of the hydraulic system, the oil path between the oil inlet of the logic valve and the oil outlet of the logic valve is connected, in the third working state of the hydraulic system, the control port of the logic valve does not detect oil pressure, and the oil path between the oil inlet of the logic valve and the oil outlet of the logic valve is cut off.
As a further improvement of the hydraulic system, the logic control module further includes an overflow valve, an oil inlet of the overflow valve is connected with an oil path between an oil inlet of the second check valve and the first working port, and an oil outlet of the overflow valve is connected with an oil path between an oil outlet of the logic valve and the fourth working port.
As a further improvement of the hydraulic system, the hydraulic system comprises a hydraulic execution unit, wherein the third hydraulic interface is connected with an oil inlet of the hydraulic execution unit, and the fourth hydraulic interface is connected with an oil outlet of the hydraulic execution unit.
As a further improvement of the hydraulic system, the hydraulic system comprises an oil tank and a power pump, wherein an oil inlet of the power pump is connected with the oil tank, an oil outlet of the power pump is connected with the first hydraulic interface, and the oil tank is connected with the second hydraulic interface.
As a further improvement of the hydraulic system, the fifth hydraulic interface is connected with a quick coupling, and the sixth hydraulic interface is connected with a quick coupling.
The hydraulic system is applied to emergency guarantee equipment, and when the self power of the emergency guarantee equipment works normally, the emergency guarantee equipment can adopt the self power to provide power for the execution control unit of the vehicle and can also adopt the self power to provide power for the execution control units of other vehicles; when the power of the emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of the vehicle. The hydraulic system combines the characteristics of group cooperative work of a plurality of devices during rescue and guarantee operation, when one device loses power, the hydraulic systems of the two devices are connected by two pipes, so that power sharing and mutual rescue between the two devices can be realized, and full-power emergency is skillfully realized. Greatly improves the reliability of the rescue and guarantee equipment. The mutual rescue control device and the hydraulic system have the advantages of compact structure, convenient arrangement, simple and convenient and quick use and high reliability. The requirements of rescue and guarantee of high timeliness, high efficiency and high reliability of the equipment on the hydraulic system are highly met.
In a further aspect, the invention provides an emergency support device comprising a hydraulic system according to any one of the preceding claims.
According to the emergency guarantee equipment, due to the hydraulic system, when the self power of the emergency guarantee equipment works normally, the emergency guarantee equipment can adopt the self power to provide power for the execution control unit of the vehicle, and can also adopt the self power to provide power for the execution control units of other vehicles; when the power of the emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of the vehicle. The emergency guarantee equipment combines the characteristic that a plurality of pieces of equipment work cooperatively in groups during rescue and guarantee operation, when one piece of equipment loses power, the two pieces of equipment can share power and save each other by connecting the hydraulic systems of the two pieces of equipment through two pipes, and full-power emergency is skillfully realized. Greatly improves the reliability of the rescue and guarantee equipment. The mutual rescue control device and the hydraulic system have the advantages of compact structure, convenient arrangement, simple and convenient and quick use and high reliability. The requirements of rescue and guarantee of high timeliness, high efficiency and high reliability of the equipment on the hydraulic system are highly met.
In another aspect, the invention provides a mutual aid device group, which includes a plurality of emergency security devices according to any one of the above schemes.
According to the mutual rescue equipment group, due to the fact that the emergency guarantee equipment is included, when the power of certain emergency guarantee equipment works normally, the emergency guarantee equipment can adopt the power to provide power for the execution control unit of the vehicle, and can also adopt the power to provide power for the execution control units of other vehicles; when the power of certain emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of other emergency guarantee equipment. The mutual rescue equipment group combines the characteristics of group cooperative work of a plurality of pieces of equipment during rescue and guarantee operation, when one piece of equipment loses power, the power sharing mutual rescue between the two pieces of equipment can be realized only by connecting the hydraulic systems of the two pieces of equipment through two pipes, and the full-power emergency is skillfully realized. Greatly improves the reliability of the rescue and guarantee equipment. The mutual rescue control device and the hydraulic system have the advantages of compact structure, convenient arrangement, simple and convenient and quick use and high reliability. The requirements of rescue and guarantee of high timeliness, high efficiency and high reliability of the equipment on the hydraulic system are highly met.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic configuration diagram of a hydraulic system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a hydraulic system in a second operating state or a third operating state according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a hydraulic system in a second operating state or a third operating state according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a hydraulic system in a second operating state or a third operating state according to an embodiment of the present invention.
Fig. 9 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
Fig. 10 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
Fig. 11 is a schematic structural diagram of a hydraulic system in a second operating state or a third operating state according to an embodiment of the present invention.
Fig. 12 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
FIG. 13 is a schematic diagram of an emergency safety and security device in accordance with one embodiment of the invention.
Fig. 14 is a schematic structural diagram of a hydraulic system in a second operating state or a third operating state according to an embodiment of the present invention.
FIG. 15 is a schematic diagram of an emergency safety and security device in accordance with one embodiment of the invention.
Fig. 16 is a schematic structural diagram of a rescue equipment group according to an embodiment of the invention.
In the drawings:
the hydraulic control system comprises a logic control module 1, a first hydraulic interface 2, a second hydraulic pressure joint 3, a third hydraulic interface 4, a fourth hydraulic interface 5, a fifth hydraulic interface 6, a sixth hydraulic interface 7, a first working port 8, a second working port 9, a third working port 10, a fourth working port 11, a first check valve 12, a cartridge valve 13, a reversing valve 14, an overflow valve 15, a second check valve 16, a logic valve 17, a hydraulic execution unit 18, an oil tank 19, a power pump 20 and a quick joint 21.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
In the description of the present invention, it should be noted that the terms indicating orientation or positional relationship appearing are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, the specific meanings of the above terms in the present invention can be specifically understood by those skilled in the art.
Example one
Referring to fig. 1 to 14, the present embodiment provides a hydraulic system for emergency support equipment. The hydraulic system comprises a logic control module 1, a first hydraulic interface 2, a second hydraulic interface 3, a third hydraulic interface 4, a fourth hydraulic interface 5, a fifth hydraulic interface 6 and a sixth hydraulic interface 7. The logic control module 1 comprises a first working port 8, a second working port 9, a third working port 10 and a fourth working port 11.
The first working port 8 is connected with the first hydraulic interface 2, the second working port 9 is connected with the third hydraulic interface 4, the second working port 9 is connected with the fifth hydraulic interface 6, the third working port 10 is connected with the fourth hydraulic interface 5, the third working port 10 is connected with the sixth hydraulic interface 7, and the fourth working port 11 is connected with the second hydraulic interface 3.
Wherein the hydraulic system has a first operating state, a second operating state, and a third operating state. In a first working state of the hydraulic system, the oil path between the first working port 8 and the second working port 9 is communicated, the oil path between the third working port 10 and the fourth working port 11 is communicated, and oil flows from the first hydraulic interface 2 to the third hydraulic interface 4 through the first working port 8 and the second working port 9, and then flows from the fourth hydraulic interface 5 to the second hydraulic interface 3 through the third working port 10 and the fourth working port 11. In a second working state of the hydraulic system, the oil path between the first working port 8 and the second working port 9 is communicated, the oil path between the third working port 10 and the fourth working port 11 is communicated, and oil flows from the first hydraulic interface 2, through the first working port 8 and the second working port 9 to the fifth hydraulic interface 6, and then flows from the sixth hydraulic interface 7, through the third working port 10 and the fourth working port 11 to the second hydraulic interface 3. In a second third operating state of the hydraulic system, the oil path between the first working port 8 and the second working port 9 from the second working port 9 to the first working port 8 is cut off (directional, one-way cut is sufficient, and the flow from the first working port to the second working port is cut off or not), the oil path between the third working port 10 and the fourth working port 11 from the third working port 10 to the fourth working port 11 is cut off (directional, one-way cut is sufficient, and the flow from the fourth working port to the third working port is cut off or not), and the oil flows from the fifth hydraulic interface 6 to the third hydraulic interface 4 and then flows from the fourth hydraulic interface 5 to the sixth hydraulic interface 7.
When the hydraulic system is applied to emergency guarantee equipment, when the emergency guarantee equipment works normally under self power, the emergency guarantee equipment can not only adopt the self power to provide power for the execution control unit of the vehicle, but also can be called as an autonomous working state when the hydraulic system is switched to a first working state, in the first working state of the hydraulic system, the oil path between the first working port 8 and the second working port 9 is communicated, the oil circuit between the third working port 10 and the fourth working port 11 is communicated, oil flows to the third hydraulic port 4 from the first hydraulic port 2 through the first working port 8 and the second working port 9, then flows to the second hydraulic connection port 3 from the fourth hydraulic port 5 through the third working port 10 and the fourth working port 11, an execution control unit is connected between the third hydraulic interface 4 and the fourth hydraulic interface 5; the emergency guarantee equipment can also adopt self power to provide power for the execution control unit of other vehicles, at the moment, the hydraulic system is switched to a second working state, which can also be called as a rescue working state, in the second working state of the hydraulic system, the oil way between the first working port 8 and the second working port 9 is communicated, the oil way between the third working port 10 and the fourth working port 11 is communicated, and oil flows to the fifth hydraulic interface 6 from the first hydraulic interface 2 through the first working port 8 and the second working port 9 and then flows to the second hydraulic interface 3 from the sixth hydraulic interface 7 through the third working port 10 and the fourth working port 11. When the self power of the emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of the vehicle, at the moment, the hydraulic system is switched to a third working state, which can also be called a rescue working state, in the third working state of the hydraulic system, the oil path between the first working port 8 and the second working port 9 is cut off, the oil path between the third working port 10 and the fourth working port 11 is cut off, and oil flows from the fifth hydraulic interface 6 to the third hydraulic interface 4 and then flows from the fourth hydraulic interface 5 to the sixth hydraulic interface 7.
The hydraulic system is applied to emergency guarantee equipment, and when the self power of the emergency guarantee equipment works normally, the emergency guarantee equipment can adopt the self power to provide power for the execution control unit of the vehicle and can also adopt the self power to provide power for the execution control units of other vehicles; when the power of the emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of the vehicle. The hydraulic system combines the characteristics of group cooperative work of a plurality of devices during rescue and guarantee operation, when one device loses power, the hydraulic systems of the two devices are connected by two pipes, so that power sharing and mutual rescue between the two devices can be realized, and full-power emergency is skillfully realized. Greatly improves the reliability of the rescue and guarantee equipment. The mutual rescue control device and the hydraulic system have the advantages of compact structure, convenient arrangement, simple and convenient and quick use and high reliability. The requirements of rescue and guarantee of high timeliness, high efficiency and high reliability of the equipment on the hydraulic system are highly met.
As an implementation form of the logic control module 1, specifically, optionally, the logic control module 1 includes a first check valve 12, a cartridge valve 13, and a directional control valve 14, an oil inlet of the first check valve 12 is connected to a first working port 8, an oil outlet of the first check valve 12 is connected to a second working port 9, the first check valve 12 is used for controlling oil to flow from the first working port 8 to the second working port 9 in a single direction, the directional control valve 14 includes a first oil inlet and outlet, a second oil inlet and outlet, a third oil inlet and outlet, a fourth control oil port, and a fifth control oil port, the first oil inlet and outlet and the fourth control oil port of the directional control valve 14 are connected to an oil path between the oil outlet of the first check valve 12 and the second working port 9, the fifth control oil port of the directional control valve 14 is connected to an oil path between the oil inlet of the first check valve 12 and the first working port 8, an oil inlet of the cartridge valve 13 is connected with a third working port 10, an oil outlet of the cartridge valve 13 is connected with a fourth working port 11, a second oil inlet and outlet of the reversing valve 14 is connected with an oil path between the oil outlet of the cartridge valve 13 and the fourth working port 11, a control oil port of the cartridge valve 13 is connected with a third oil inlet and outlet of the reversing valve 14, the third oil inlet and outlet is selectively connected with a first oil inlet and outlet or a second oil inlet and outlet, in a first working state or a second working state of the hydraulic system, the control pressure of a fifth control oil port of the reversing valve 14 is higher than that of a fourth control oil port, the reversing valve 14 is in a right position, the third oil inlet and outlet is connected with the second oil inlet and outlet, and the oil inlet and outlet of the cartridge valve 13 are communicated, so that the oil path between the third working port 10 and the fourth working port 11 is communicated, in a third working state of the hydraulic system, the control pressure of the fourth control port of the directional valve 14 is higher than the control pressure of the fifth control port (the pressure is zero or very low), the control force of the left side of the directional valve 14 is greater than the control force of the right side (the acting force and the spring force of the fifth control port on the valve core), the directional valve 14 is located at the left position, the third oil inlet and outlet is connected with the first oil inlet and outlet, and the oil inlet and outlet of the cartridge valve 13 are cut off, so that the oil path between the third working port 10 and the fourth working port 11 is cut off.
In order to avoid the too high oil pressure of the system, preferably, the logic control module 1 further includes an overflow valve 15, an oil inlet of the overflow valve 15 is connected to an oil path between an oil inlet of the first check valve 12 and the first working port 8, and an oil outlet of the overflow valve 15 is connected to an oil path between an oil outlet of the cartridge valve 13 and the fourth working port 11. The overflow valve 15 is arranged between the first hydraulic interface 2 and the second hydraulic interface 3, so that the situation that the hydraulic system is under rescue and autonomous working states due to clamping stagnation of the cartridge valve 13 and the situation that the fourth hydraulic interface 5 cannot be normally conducted to the second hydraulic interface 3 is prevented, the pressure of the first hydraulic interface 2 can be continuously increased until a fully-installed set value is reached, the overflow valve 15 is opened, oil liquid overflows back to the oil tank 19, and the safety of the system and equipment is guaranteed. More preferably, for the integrated arrangement, the logic control module 1 includes an integrated valve body, the first check valve 12, the cartridge valve 13, the directional valve 14 and the overflow valve 15 are packaged in the integrated valve body, and the first working port 8, the second working port 9, the third working port 10 and the fourth working port 11 are arranged on the integrated valve body.
As another implementation form of the logic control module 1, optionally, the logic control module 1 includes a second check valve 16 and a logic valve 17, an oil inlet of the second check valve 16 is connected to the first working port 8, an oil outlet of the second check valve 16 is connected to the second working port 9, the second check valve 16 is used for controlling oil to flow from the first working port 8 to the second working port 9 in a single direction, an oil inlet of the logic valve 17 is connected to the third working port 10, an oil outlet of the logic valve 17 is connected to the fourth working port 11, a control port of the logic valve 17 is connected to an oil path between the oil inlet of the second check valve 16 and the first working port 8, in the first working state or the second working state of the hydraulic system, the control port of the logic valve 17 detects oil pressure, and an oil path between the oil inlet of the logic valve 17 and the oil outlet of the logic valve 17 is conducted, therefore, the oil path between the third working port 10 and the fourth working port 11 is conducted, in the third working state of the hydraulic system, the control port of the logic valve 17 cannot detect the oil pressure, the oil path between the oil inlet of the logic valve 17 and the oil outlet of the logic valve 17 is cut off, and the oil path between the third working port 10 and the fourth working port 11 is cut off.
In order to avoid the too high oil pressure of the system, preferably, the logic control module 1 further includes an overflow valve 15, an oil inlet of the overflow valve 15 is connected to an oil path between an oil inlet of the second check valve 16 and the first working port 8, and an oil outlet of the overflow valve 15 is connected to an oil path between an oil outlet of the logic valve 17 and the fourth working port 11. The overflow valve 15 is arranged between the first hydraulic interface 2 and the second hydraulic interface 3, so that the situation that the hydraulic system is under rescue and autonomous working states due to clamping stagnation of the logic valve 17 and the fourth hydraulic interface 5 cannot be normally conducted to the second hydraulic interface 3 is prevented, the pressure of the first hydraulic interface 2 can be continuously increased until a fully-installed set value is reached, the overflow valve 15 is opened, oil liquid overflows back to the oil tank 19, and the safety of the system and equipment is guaranteed. More preferably, for the integrated arrangement, the logic control module 1 includes an integrated valve body, the second check valve 16, the logic valve 17 and the overflow valve 15 are packaged in the integrated valve body, and the first working port 8, the second working port 9, the third working port 10 and the fourth working port 11 are arranged on the integrated valve body.
Specifically, optionally, the hydraulic control system further comprises a hydraulic execution unit 18, the third hydraulic interface 4 is connected with an oil inlet of the hydraulic execution unit 18, the fourth hydraulic interface 5 is connected with an oil outlet of the hydraulic execution unit 18, and a stop valve or an on-off valve is arranged on an oil path between the third hydraulic interface 4 and the fourth hydraulic interface 5.
Specifically, optionally, the hydraulic control system comprises an oil tank 19 and a power pump 20, an oil inlet of the power pump 20 is connected with the oil tank 19, an oil outlet of the power pump 20 is connected with the first hydraulic interface 2, and the oil tank 19 is connected with the second hydraulic interface 3.
It is specific optional, fifth hydraulic interface 6 is connected with quick-operation joint 21, sixth hydraulic interface 7 is connected with quick-operation joint 21, and at hydraulic system's first operating condition, quick-operation joint 21 is in disconnection off-state, the fluid of fifth hydraulic interface 6 and sixth hydraulic interface 7 can't flow out through quick-operation joint 21, and at hydraulic system's third operating condition or second operating condition, quick-operation joint 21 is in connected state, two-way conduction. The quick coupling 21 may be a pilot operated check valve.
In summary, the hydraulic system of the present invention is applied to emergency support equipment, and when the power of the emergency support equipment works normally, the emergency support equipment can use the power of the emergency support equipment to provide power for the execution control unit of the vehicle, and can also use the power of the emergency support equipment to provide power for the execution control units of other vehicles; when the power of the emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of the vehicle. The hydraulic system combines the characteristics of group cooperative work of a plurality of devices during rescue and guarantee operation, when one device loses power, the hydraulic systems of the two devices are connected by two pipes, so that power sharing and mutual rescue between the two devices can be realized, and full-power emergency is skillfully realized. Greatly improves the reliability of the rescue and guarantee equipment. The mutual rescue control device and the hydraulic system have the advantages of compact structure, convenient arrangement, simple and convenient and quick use and high reliability. The requirements of rescue and guarantee of high timeliness, high efficiency and high reliability of the equipment on the hydraulic system are highly met.
Example two
Referring to fig. 1 to 15, the embodiment provides an emergency support device including a hydraulic system according to the first embodiment. The emergency support device may be a rescue vehicle.
The emergency guarantee equipment has an autonomous working state, a rescue working state and a rescued working state.
Firstly, in an autonomous working state, oil flows in from an oil tank 19, a power pump 20 and a first hydraulic interface 2 in sequence, sequentially passes through a first working port 8 and a second working port 9 of a logic control module 1, and is output to an execution control unit of the vehicle through a third hydraulic interface 4, meanwhile, return oil of the execution control unit flows into a hydraulic system through a fourth hydraulic interface 5, and enters the logic control module 1, under the working condition, the logic control module 1 is conducted from a third working port 10 to a fourth working port 11, and then the return oil flows to a second hydraulic interface 3 through the fourth working port 11 of the logic control module 1 and returns to the oil tank 19 of the vehicle;
secondly, in a rescue working state, the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescue vehicle are communicated with the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescued vehicle by two oil pipes, and at the moment, each hydraulic control one-way valve 21 is in a two-way conduction state. Oil flows in from a first hydraulic interface 2 of the rescue vehicle, sequentially passes through a first working port 8 and a second working port 9 of a logic control module 1, and is output to a fifth hydraulic interface 6 and an execution control unit of the rescued vehicle from the fifth hydraulic interface 6 of the rescued vehicle, under the working condition, a third hydraulic interface 4 and a fourth hydraulic interface 5 of the execution control unit of the rescued vehicle are cut off, meanwhile, return oil of the execution control unit of the rescued vehicle flows into a hydraulic system of the rescued vehicle through the fourth hydraulic interface 5, under the working condition, the logic control module 1 of the rescued vehicle is cut off from the third working port 10 to the fourth working port 11, the oil can only pass through a sixth hydraulic interface 7 of the logic control module, and returns to the sixth hydraulic interface 7 of the rescued vehicle, under the working condition, the logic control module 1 of the rescued vehicle is conducted from the third working port 10 to the fourth working port 11, and the logic control module 1 of the rescued vehicle is cut off from the third working port 10 to the fourth working port 11, the return oil flows to the second hydraulic pressure connection port 3 through the fourth working port 11 of the logic control module 1 and returns to the rescue vehicle oil tank 19;
and thirdly, in the rescue working state, the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescue vehicle are communicated with the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescue vehicle by using two oil pipes under the working condition. Under the working condition that the oil liquid flows into the fifth hydraulic interface 6 of the mutual rescue hydraulic control device of the rescued vehicle from the fifth hydraulic interface 6 of the mutual rescue hydraulic control device of the rescued vehicle, under the working condition, the third working port 10 to the fourth working port 11 of the execution control unit of the rescued vehicle are cut off, the oil liquid can only be output to the execution control unit of the rescued vehicle through the third hydraulic interface 4, simultaneously the oil return of the execution control unit of the rescued vehicle flows into the mutual rescue hydraulic control device of the rescued vehicle through the fourth hydraulic interface 5, under the working condition, the logic control module 1 of the rescued vehicle is cut off from the third working port 10 to the fourth working port 11, the oil liquid can only pass through the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescued vehicle, returns to the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescued vehicle and then returns to the fourth working port 11 of the logic control module 1 of the rescued vehicle, flows to the second hydraulic pressure connection port 3 and returns to the rescue vehicle oil tank 19.
According to the emergency guarantee equipment, due to the hydraulic system, when the self power of the emergency guarantee equipment works normally, the emergency guarantee equipment can adopt the self power to provide power for the execution control unit of the vehicle, and can also adopt the self power to provide power for the execution control units of other vehicles; when the power of the emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of the vehicle. The emergency guarantee equipment combines the characteristic that a plurality of pieces of equipment work cooperatively in groups during rescue and guarantee operation, when one piece of equipment loses power, the two pieces of equipment can share power and save each other by connecting the hydraulic systems of the two pieces of equipment through two pipes, and full-power emergency is skillfully realized. Greatly improves the reliability of the rescue and guarantee equipment. The mutual rescue control device and the hydraulic system have the advantages of compact structure, convenient arrangement, simple and convenient and quick use and high reliability. The requirements of rescue and guarantee of high timeliness, high efficiency and high reliability of the equipment on the hydraulic system are highly met.
EXAMPLE III
Referring to fig. 1 to 16, the present embodiment provides a mutual aid device group, which includes a plurality of emergency security devices according to the second embodiment.
The emergency guarantee equipment has an autonomous working state, a rescue working state and a rescued working state.
Firstly, in an autonomous working state, oil flows in from an oil tank 19, a power pump 20 and a first hydraulic interface 2 in sequence, sequentially passes through a first working port 8 and a second working port 9 of a logic control module 1, and is output to an execution control unit of the vehicle through a third hydraulic interface 4, meanwhile, return oil of the execution control unit flows into a hydraulic system through a fourth hydraulic interface 5, and enters the logic control module 1, under the working condition, the logic control module 1 is conducted from a third working port 10 to a fourth working port 11, and then the return oil flows to a second hydraulic interface 3 through the fourth working port 11 of the logic control module 1 and returns to the oil tank 19 of the vehicle;
secondly, in a rescue working state, the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescue vehicle are communicated with the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescued vehicle by two oil pipes, and at the moment, each hydraulic control one-way valve 21 is in a two-way conduction state. Oil flows in from a first hydraulic interface 2 of the rescue vehicle, sequentially passes through a first working port 8 and a second working port 9 of a logic control module 1, and is output to a fifth hydraulic interface 6 and an execution control unit of the rescued vehicle from the fifth hydraulic interface 6 of the rescued vehicle, under the working condition, a third hydraulic interface 4 and a fourth hydraulic interface 5 of the execution control unit of the rescued vehicle are cut off, meanwhile, return oil of the execution control unit of the rescued vehicle flows into a hydraulic system of the rescued vehicle through the fourth hydraulic interface 5, under the working condition, the logic control module 1 of the rescued vehicle is cut off from the third working port 10 to the fourth working port 11, the oil can only pass through a sixth hydraulic interface 7 of the logic control module, and returns to the sixth hydraulic interface 7 of the rescued vehicle, under the working condition, the logic control module 1 of the rescued vehicle is conducted from the third working port 10 to the fourth working port 11, and the logic control module 1 of the rescued vehicle is cut off from the third working port 10 to the fourth working port 11, the return oil flows to the second hydraulic pressure connection port 3 through the fourth working port 11 of the logic control module 1 and returns to the rescue vehicle oil tank 19;
and thirdly, in the rescue working state, the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescue vehicle are communicated with the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescue vehicle by using two oil pipes under the working condition. Under the working condition that the oil liquid flows into the fifth hydraulic interface 6 of the mutual rescue hydraulic control device of the rescued vehicle from the fifth hydraulic interface 6 of the mutual rescue hydraulic control device of the rescued vehicle, under the working condition, the third working port 10 to the fourth working port 11 of the execution control unit of the rescued vehicle are cut off, the oil liquid can only be output to the execution control unit of the rescued vehicle through the third hydraulic interface 4, simultaneously the oil return of the execution control unit of the rescued vehicle flows into the mutual rescue hydraulic control device of the rescued vehicle through the fourth hydraulic interface 5, under the working condition, the logic control module 1 of the rescued vehicle is cut off from the third working port 10 to the fourth working port 11, the oil liquid can only pass through the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescued vehicle, returns to the sixth hydraulic interface 7 of the mutual rescue hydraulic control device of the rescued vehicle and then returns to the fourth working port 11 of the logic control module 1 of the rescued vehicle, flows to the second hydraulic pressure connection port 3 and returns to the rescue vehicle oil tank 19.
According to the mutual rescue equipment group, due to the fact that the emergency guarantee equipment is included, when the power of certain emergency guarantee equipment works normally, the emergency guarantee equipment can adopt the power to provide power for the execution control unit of the vehicle, and can also adopt the power to provide power for the execution control units of other vehicles; when the power of certain emergency guarantee equipment works abnormally, the emergency guarantee equipment can provide power for the execution control unit of the vehicle through the power of other emergency guarantee equipment. The mutual rescue equipment group combines the characteristics of group cooperative work of a plurality of pieces of equipment during rescue and guarantee operation, when one piece of equipment loses power, the power sharing mutual rescue between the two pieces of equipment can be realized only by connecting the hydraulic systems of the two pieces of equipment through two pipes, and the full-power emergency is skillfully realized. Greatly improves the reliability of the rescue and guarantee equipment. The mutual rescue control device and the hydraulic system have the advantages of compact structure, convenient arrangement, simple and convenient and quick use and high reliability. The requirements of rescue and guarantee of high timeliness, high efficiency and high reliability of the equipment on the hydraulic system are highly met.
Specifically, optionally, the mutual rescue equipment group of the invention includes a rescue vehicle and a rescued vehicle, both the rescue vehicle and the rescued vehicle are emergency guarantee equipment as described in the second embodiment, the self power of the rescue vehicle works normally, the power of the rescued vehicle works abnormally, the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the rescue vehicle are respectively connected with the fifth hydraulic interface 6 and the sixth hydraulic interface 7 of the rescued vehicle, at this time, each quick connector 21 is in a bidirectional conductive connection state, oil is sequentially output to the rescued vehicle through the oil tank 19 of the rescue vehicle, the power pump 20, the first hydraulic interface 2, the first working port 8 of the logic control module 1, the second working port 9 of the logic control module 1 and the fifth hydraulic interface 6, and then sequentially returns to the rescue vehicle through the fifth hydraulic interface 6, the third hydraulic interface 4, the execution control unit, the fourth hydraulic interface 5 and the sixth hydraulic interface 7 of the rescued vehicle, and then the oil returns to an oil tank 19 of the rescue vehicle through a sixth hydraulic interface 7, a third working port 10, a fourth working port 11 and a second hydraulic interface 3 of the rescue vehicle in sequence, under the working condition, an oil path between a third hydraulic interface 4 and a fourth hydraulic interface 5 of the rescue vehicle is cut off, a logic control module 1 of the rescue vehicle is conducted from the third working port 10 to the fourth working port 11, the logic control module 1 of the rescued vehicle is cut off from the third working port 10 to the fourth working port 11, and then the return oil flows to the second hydraulic interface 3 through the fourth working port 11 of the logic control module 1 and returns to the oil tank 19 of the rescue vehicle.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A hydraulic system, characterized by:
the hydraulic control system comprises a logic control module (1), a first hydraulic interface (2), a second hydraulic interface (3), a third hydraulic interface (4), a fourth hydraulic interface (5), a fifth hydraulic interface (6) and a sixth hydraulic interface (7);
the logic control module (1) comprises a first working port (8), a second working port (9), a third working port (10) and a fourth working port (11);
the first working port (8) is connected with the first hydraulic interface (2), the second working port (9) is connected with the third hydraulic interface (4), the second working port (9) is also connected with the fifth hydraulic interface (6), the third working port (10) is connected with the fourth hydraulic interface (5), the third working port (10) is also connected with the sixth hydraulic interface (7), and the fourth working port (11) is connected with the second hydraulic interface (3);
the hydraulic system has a first working state, a second working state and a third working state;
in a first working state of the hydraulic system, an oil way between the first working port (8) and the second working port (9) is communicated, an oil way between the third working port (10) and the fourth working port (11) is communicated, and oil flows to the third hydraulic interface (4) from the first hydraulic interface (2) through the first working port (8) and the second working port (9) and then flows to the second hydraulic interface (3) from the fourth hydraulic interface (5) through the third working port (10) and the fourth working port (11);
in a second working state of the hydraulic system, an oil way between the first working port (8) and the second working port (9) is communicated, an oil way between the third working port (10) and the fourth working port (11) is communicated, and oil flows to the fifth hydraulic interface (6) from the first hydraulic interface (2) through the first working port (8) and the second working port (9) and then flows to the second hydraulic interface (3) from the sixth hydraulic interface (7) through the third working port (10) and the fourth working port (11);
in a third working state of the hydraulic system, an oil path between the first working port (8) and the second working port (9) from the second working port (9) to the first working port (8) is cut off, an oil path between the third working port (10) and the fourth working port (11) from the third working port (10) to the fourth working port (11) is cut off, and oil flows from the fifth hydraulic interface (6) to the third hydraulic interface (4) and then flows from the fourth hydraulic interface (5) to the sixth hydraulic interface (7).
2. The hydraulic system of claim 1, wherein: the logic control module (1) comprises a first one-way valve (12), a cartridge valve (13) and a reversing valve (14), an oil inlet of the first one-way valve (12) is connected with a first working port (8), an oil outlet of the first one-way valve (12) is connected with a second working port (9), the reversing valve (14) comprises a first oil inlet and outlet, a second oil inlet and outlet, a third oil inlet and outlet, a fourth control oil port and a fifth control oil port, the first oil inlet and outlet and the fourth control oil port of the reversing valve (14) are connected with an oil way between the oil outlet of the first one-way valve (12) and the second working port (9), the fifth control oil port of the reversing valve (14) is connected with an oil way between the oil inlet of the first one-way valve (12) and the first working port (8), an oil inlet of the cartridge valve (13) is connected with the third working port (10), and an oil outlet of the cartridge valve (13) is connected with the fourth working port (11), a second oil inlet and outlet of the reversing valve (14) is connected with an oil path between an oil outlet of the cartridge valve (13) and a fourth working port (11), a control oil port of the cartridge valve (13) is connected with a third oil inlet and outlet of the reversing valve (14), the third oil inlet and outlet is selectively connected with a first oil inlet and outlet or a second oil inlet and outlet, in a first working state or a second working state of the hydraulic system, the control pressure of a fifth control oil port of the reversing valve (14) is higher than the control pressure of a fourth control oil port, the reversing valve (14) is in a right position, the third oil inlet and outlet is connected with the second oil inlet and outlet, an oil inlet and an oil outlet of the cartridge valve (13) are communicated, in a third working state of the hydraulic system, the control pressure of a fourth control oil port of the reversing valve (14) is higher than the control pressure of the fifth control oil port, the reversing valve (14) is located at the left position, the third oil inlet and outlet is connected with the first oil inlet and outlet, and the oil inlet and outlet of the cartridge valve (13) are cut off.
3. The hydraulic system of claim 2, wherein: the logic control module (1) further comprises an overflow valve (15), an oil inlet of the overflow valve (15) is connected with an oil way between an oil inlet of the first one-way valve (12) and the first working port (8), and an oil outlet of the overflow valve (15) is connected with an oil way between an oil outlet of the cartridge valve (13) and the fourth working port (11).
4. The hydraulic system of claim 1, wherein: the logic control module (1) comprises a second one-way valve (16) and a logic valve (17), an oil inlet of the second one-way valve (16) is connected with the first working port (8), an oil outlet of the second one-way valve (16) is connected with the second working port (9), an oil inlet of the logic valve (17) is connected with the third working port (10), an oil outlet of the logic valve (17) is connected with the fourth working port (11), the control port of the logic valve (17) is connected with an oil path between the oil inlet of the second one-way valve (16) and the first working port (8), in a first working state or a second working state of the hydraulic system, an oil path between an oil inlet of the logic valve (17) and an oil outlet of the logic valve (17) is communicated, in a third working state of the hydraulic system, an oil path between the oil inlet of the logic valve (17) and the oil outlet of the logic valve (17) is cut off.
5. The hydraulic system of claim 4, wherein: the logic control module (1) further comprises an overflow valve (15), an oil inlet of the overflow valve (15) is connected with an oil way between an oil inlet of the second one-way valve (16) and the first working port (8), and an oil outlet of the overflow valve (15) is connected with an oil way between an oil outlet of the logic valve (17) and the fourth working port (11).
6. The hydraulic system of any one of claims 1-5, wherein: the hydraulic control system comprises a hydraulic execution unit (18), wherein the third hydraulic interface (4) is connected with an oil inlet of the hydraulic execution unit (18), and the fourth hydraulic interface (5) is connected with an oil outlet of the hydraulic execution unit (18).
7. The hydraulic system of any one of claims 1-5, wherein: the hydraulic power unit comprises an oil tank (19) and a power pump (20), wherein an oil inlet of the power pump (20) is connected with the oil tank (19), an oil outlet of the power pump (20) is connected with a first hydraulic interface (2), and the oil tank (19) is connected with a second hydraulic interface (3).
8. The hydraulic system of any one of claims 1-5, wherein: the fifth hydraulic interface (6) is connected with a quick joint (21), and the sixth hydraulic interface (7) is connected with the quick joint (21).
9. An emergency support device, characterized in that: comprising a hydraulic system according to any one of claims 1-8.
10. A mutual rescue equipment group is characterized in that: comprising a plurality of emergency support devices according to claim 9.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110978171.1A CN113417909A (en) | 2021-08-25 | 2021-08-25 | Hydraulic system, emergency guarantee equipment and mutual rescue equipment group |
| CN202122689864.7U CN216199379U (en) | 2021-08-25 | 2021-11-05 | Hydraulic system, emergency guarantee equipment and mutual rescue equipment group |
| CN202122690030.8U CN216306368U (en) | 2021-08-25 | 2021-11-05 | Hydraulic system, emergency guarantee equipment and mutual rescue equipment group |
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| CN113417909A true CN113417909A (en) | 2021-09-21 |
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| CN202122690030.8U Active CN216306368U (en) | 2021-08-25 | 2021-11-05 | Hydraulic system, emergency guarantee equipment and mutual rescue equipment group |
| CN202122689864.7U Active CN216199379U (en) | 2021-08-25 | 2021-11-05 | Hydraulic system, emergency guarantee equipment and mutual rescue equipment group |
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| CN201433066Y (en) * | 2009-04-21 | 2010-03-31 | 上海三一科技有限公司 | Pipeline crack prevention closed type hydraulic system of winding motor |
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| CN207485773U (en) * | 2017-09-20 | 2018-06-12 | 沈阳中之杰流体控制***有限公司 | A kind of electro-hydraulic servo fault protection system |
| CN108691849A (en) * | 2018-04-23 | 2018-10-23 | 马钢(集团)控股有限公司 | Emergency system after a kind of failure of construction machinery hydraulic system |
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2021
- 2021-08-25 CN CN202110978171.1A patent/CN113417909A/en active Pending
- 2021-11-05 CN CN202122690030.8U patent/CN216306368U/en active Active
- 2021-11-05 CN CN202122689864.7U patent/CN216199379U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201433066Y (en) * | 2009-04-21 | 2010-03-31 | 上海三一科技有限公司 | Pipeline crack prevention closed type hydraulic system of winding motor |
| CN102807168A (en) * | 2012-08-13 | 2012-12-05 | 三一重工股份有限公司 | Hydraulic control system of single-cylinder telescoping mechanism of crane and crane |
| CN204041581U (en) * | 2014-08-20 | 2014-12-24 | 湖北华舟重工应急装备股份有限公司 | Ribbon pontoon bridge journey hydraulic system rescues system mutually |
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| CN216199379U (en) | 2022-04-05 |
| CN216306368U (en) | 2022-04-15 |
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