Emergency operation evacuation system and emergency operation method for container loading machine

Abstract

This invention relates to the technical field of emergency evacuation of loaders, and mainly discloses an emergency operation and evacuation system and method for containerized cargo loaders. It includes a manual pump, a brake emergency module, an outrigger emergency module, a bridge platform emergency module, a main platform emergency module, and a loader. The loader is equipped with a parking brake, outrigger cylinders, a bridge platform lifting cylinder, a main platform lifting cylinder, and a loader hydraulic system. Each module is connected to the manual pump. The brake emergency module is connected in series between the parking brake and the loader hydraulic system; the outrigger emergency module is connected in series between the outrigger cylinders and the loader hydraulic system; the bridge platform emergency module is connected in series between the bridge platform lifting cylinder and the loader hydraulic system; and the main platform emergency module is connected in series between the main platform lifting cylinder and the loader hydraulic system. This invention overcomes the problems of cumbersome operation of existing manual emergency measures for loaders, and the potential for losses and impacts caused by flight delays due to malfunctions.

Description

Technical Field

[0001] This invention relates to the technical field of emergency evacuation of loaders, and in particular to an emergency operation and evacuation system and method for containerized cargo loaders. Background Technology

[0002] Container cargo loaders are airport container pallet platform vehicles used for loading and unloading containers, pallets, and other cargo near aircraft parking positions. They feature stable loading and unloading performance, high transmission efficiency, large load capacity, stable lifting and lowering, and wide applicability, significantly improving the efficiency and convenience of the air transport industry.

[0003] Existing emergency evacuation measures for container cargo loaders mainly consist of two methods: electric emergency and manual emergency. Electric emergency uses a jump starter battery for rapid response; however, manual emergency is relied upon in case of circuit failure or power loss. The existing manual emergency measures for container cargo loaders are cumbersome to operate and require multiple personnel, which can significantly delay flights and cause losses and disruptions in the event of equipment failure. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the existing manual emergency measures of container cargo loaders have drawbacks such as cumbersome operation and the need for multiple personnel to operate them, which can delay flights and cause losses and impacts when equipment malfunctions.

[0005] The above-mentioned technical problems are solved by the following technical solution: This invention proposes an emergency operation and evacuation system for a containerized cargo loader, which includes a manual pump, a brake emergency module, an outrigger emergency module, a bridge platform emergency module, a main platform emergency module, and a loader; the loader is equipped with a parking brake, outrigger cylinders, a bridge platform lifting cylinder, a main platform lifting cylinder, and a loader hydraulic system; each of the emergency modules is hydraulically connected to the manual pump, wherein the brake emergency module is connected in series between the parking brake and the loader hydraulic system, the outrigger emergency module is connected in series between the outrigger cylinders and the loader hydraulic system, the bridge platform emergency module is connected in series between the bridge platform lifting cylinder and the loader hydraulic system, and the main platform emergency module is connected in series between the main platform lifting cylinder and the loader hydraulic system.

[0006] In a preferred embodiment of the emergency operation and evacuation system for a containerized cargo loader according to the present invention: the emergency braking module includes a first circuit cut-off needle valve and a first emergency circuit connection needle valve. The first circuit cut-off needle valve is initially fully open, and the first emergency circuit connection needle valve is initially fully closed. The first circuit cut-off needle valve is connected in series to the BRK circuit of the parking brake and the loader's hydraulic system. The input end of the first emergency circuit connection needle valve is hydraulically connected to a manual pump, and its output end merges with the output end of the first circuit cut-off needle valve and is hydraulically connected to the parking brake. The outrigger emergency module includes a second circuit cut-off needle valve and a second emergency circuit connection needle valve. Both the second circuit cut-off needle valve and the second emergency circuit connection needle valve are initially fully closed. The input end of the second emergency circuit connection needle valve is hydraulically connected to the rodless chamber of the outrigger cylinder, and the output end of the second emergency circuit connection needle valve is hydraulically connected to the hydraulic oil tank. The input end of the second circuit cut-off needle valve is hydraulically connected to the manual pump, and the output end of the second circuit cut-off needle valve is hydraulically connected to the outrigger cylinder. The bridge platform emergency module includes a third-circuit cut-off needle valve and a third-emergency-circuit-connection needle valve. The third-circuit cut-off needle valve is initially fully open, and the third-emergency-circuit-connection needle valve is initially fully closed. The third-circuit cut-off needle valve is connected in series in the PLL circuit of the bridge platform lifting cylinder and the loader hydraulic system. The input end of the third-emergency-circuit-connection needle valve is hydraulically connected to the manual pump, and the output end of the third-emergency-circuit-connection needle valve and the output end of the third-circuit cut-off needle valve are combined and then hydraulically connected to the bridge platform lifting cylinder. The main platform emergency module includes a fourth-circuit cut-off needle valve and a fourth-emergency-circuit-connection needle valve. The fourth-circuit cut-off needle valve is initially fully open, and the fourth-emergency-circuit-connection needle valve is initially fully closed. The fourth-circuit cut-off needle valve is connected in series in the AR circuit of the main platform lifting cylinder and the loader hydraulic system. The input end of the fourth-emergency-circuit-connection needle valve is hydraulically connected to the manual pump, and the output end of the fourth-emergency-circuit-connection needle valve and the output end of the fourth-circuit cut-off needle valve are combined and then hydraulically connected to the main platform lifting cylinder.

[0007] In a preferred embodiment of the emergency operation and evacuation system for a containerized cargo loader according to the present invention: eight outrigger cylinders are provided, and the rodless chambers of the eight outrigger cylinders are hydraulically connected to the input end of the second emergency circuit connection needle valve after being collected by hydraulic pipelines; the hydraulic control ends of the eight outrigger cylinders are hydraulically connected to the output end of the second circuit cut-off needle valve after being collected by hydraulic pipelines; a locking valve is provided on both the bridge platform lifting cylinder and the main platform lifting cylinder, and the locking valve is hydraulically connected to the output ends of the third emergency circuit connection needle valve and the fourth emergency circuit connection needle valve, respectively; a fifth needle valve is connected in series on the hydraulic circuit of the bridge platform emergency module, and the fifth needle valve is hydraulically connected to the self-weight descent control passage of the bridge platform lifting cylinder.

[0008] In a preferred embodiment of the container cargo loader emergency operation and evacuation system of the present invention: the brake emergency module, outrigger emergency module, bridge platform emergency module, and main platform emergency module are all connected to the manual pump and corresponding components of the loader and the loader hydraulic system through hydraulic pipelines.

[0009] To address the aforementioned problems, the present invention also proposes the following technical solution: an emergency operation method for a container loader, based on the aforementioned emergency operation and evacuation system for a container loader, comprising the following steps: according to emergency needs, operating the corresponding emergency module to disconnect the hydraulic circuit between the corresponding component of the loader and the loader's hydraulic system, while simultaneously connecting the hydraulic circuit between the component and the manual pump; multiple emergency modules can be operated individually or simultaneously; driving the manual pump to output hydraulic pressure, which is transmitted to the corresponding component of the loader through hydraulic pipelines, cooperating with the component's own weight to complete the emergency action; after the emergency action is completed, resetting the pipeline connection status of the corresponding emergency module, restoring the hydraulic circuit connection between the corresponding component of the loader and the loader's hydraulic system.

[0010] In a preferred embodiment of the emergency operation method for a containerized cargo loader described in this invention: when operating the emergency braking module, the first circuit cut-off needle valve is closed to cut off the BRK circuit between the parking brake and the loader's hydraulic system. The first emergency circuit connection needle valve is fully opened to connect the hydraulic circuit between the parking brake and the manual pump. The manual pump is cranked to inject hydraulic oil into the parking brake to a preset pressure and flow rate, and then the first emergency circuit connection needle valve is closed. The loader is towed to a designated location at a speed of ≤3km / h, and then the first circuit cut-off needle valve is fully opened to restore circuit connectivity. When operating the outrigger emergency module, the second emergency circuit connection needle valve is fully opened to connect the hydraulic circuit between the rodless chamber of the outrigger cylinder and the hydraulic oil tank. The second circuit cut-off needle valve is fully opened to connect the hydraulic circuit between the outrigger cylinder and the manual pump. The manual pump is cranked until all eight outrigger cylinders are retracted. The second emergency circuit connection needle valve is first fully closed, and then the second circuit cut-off needle valve is fully closed. The loader's hydraulic system locks the retracted state of the outrigger cylinders.

[0011] In a preferred embodiment of the emergency operation method for a containerized cargo loader described in this invention: when operating the bridge platform emergency module, the third circuit cut-off needle valve is closed to cut off the PLL circuit between the bridge platform lifting cylinder and the loader hydraulic system; the third emergency circuit connection needle valve is fully opened to connect the hydraulic circuit between the bridge platform lifting cylinder and the manual pump; the manual pump is cranked to open the locking valve, causing the bridge platform lifting cylinder to descend by its own weight; if stopped midway, the fifth needle valve can be operated to lock the cylinder position; after descending to the preset height, the third circuit cut-off needle valve is fully opened and the third emergency circuit connection needle valve is fully closed to restore circuit connectivity; when operating the main platform emergency module, the fourth circuit cut-off needle valve is closed to cut off the AR circuit between the main platform lifting cylinder and the loader hydraulic system; the fourth emergency circuit connection needle valve is fully opened to connect the hydraulic circuit between the main platform lifting cylinder and the manual pump; the manual pump is cranked to open the locking valve, causing the main platform lifting cylinder to descend by its own weight; if stopped midway, the fourth circuit cut-off needle valve can be directly fully opened; after descending to the preset position, the fourth circuit cut-off needle valve is fully opened and the fourth emergency circuit connection needle valve is fully closed to restore circuit connectivity.

[0012] In a preferred embodiment of the emergency operation method for containerized cargo loaders described in this invention: when the loader needs to be urgently evacuated from the aircraft's near-landing position, the emergency braking module is operated first to release the parking brake, and the loader is towed to a safe area other than the aircraft's near-landing position. Then, the remaining emergency modules are operated in sequence to complete the emergency actions of the corresponding components.

[0013] In a preferred embodiment of the emergency operation method for containerized cargo loader described in this invention: when the loader malfunctions, all emergency modules are operated simultaneously to sequentially complete the emergency actions of releasing the parking brake, retracting the outrigger cylinders, and lowering the bridge platform lifting cylinder and the main platform lifting cylinder, and then towing the loader away from the aircraft's near position at a speed of ≤3km / h.

[0014] In a preferred embodiment of the emergency operation method for containerized cargo loaders described in this invention: during reset, a single emergency module that has completed the emergency operation can be reset individually, or all emergency modules can be reset simultaneously; the emergency modules that are not reset only affect the pipeline status of the corresponding loader components, and do not interfere with the normal connection and operation of other loader components and the loader hydraulic system.

[0015] The beneficial effects of this invention are as follows:

[0016] Each emergency module is independently deployed and does not interfere with others. It can be operated individually or simultaneously, improving the flexibility of emergency response. Powered by a manual pump, it requires no external energy source and is suitable for special scenarios near aircraft stands. Furthermore, this system allows a single person to complete the entire emergency process, and the emergency actions are completed quickly, enabling rapid removal of faulty equipment from the safe area and ensuring airport operational order.

[0017] Meanwhile, through precise loop control and locking design, safety hazards such as equipment tilting and component falling are avoided during emergency operations, improving operational safety. Furthermore, the reset does not affect the normal operation of the equipment, reducing the impact of emergency response on operational efficiency and improving the overall reliability and practicality of the loader's emergency response. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein:

[0019] Figure 1 The diagram shows the overall structure of the emergency operation evacuation system for a container cargo loader.

[0020] Figure 2 The diagram shows the hydraulic principle of the emergency operation evacuation system for a container cargo loader.

[0021] Figure 3 A schematic diagram of the needle valve and manual pump arrangement of the emergency operation evacuation system for a container loader is shown.

[0022] Figure 4 A schematic diagram of the core hydraulic circuit connection of the emergency operation evacuation system for a container cargo loader is shown.

[0023] Figure 5 A schematic diagram of the bridge platform emergency module's self-weight descent control loop is shown.

[0024] Figure 6 A flowchart illustrating the emergency operation procedure for a container loader is shown. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0026] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0027] Example 1

[0028] Reference Figures 1-6This is the first embodiment of the present invention. This embodiment provides an emergency operation and evacuation system for a containerized cargo loader, which includes a manual pump 100, a brake emergency module 200, an outrigger emergency module 300, a bridge platform emergency module 400, a main platform emergency module 500, and a loader 600.

[0029] The loader 600 is equipped with a parking brake 601, outrigger cylinders 602, axle platform lifting cylinders 603, main platform lifting cylinders 604, and a loader hydraulic system 605. The loader hydraulic system 605 can adopt an existing mature loader hydraulic control system. Its core components include a main hydraulic pump, a multi-way directional valve, and a hydraulic oil tank. The main hydraulic pump is preferably an adjustable high-pressure gear pump, the multi-way directional valve is preferably a segmented multi-way directional valve, and the hydraulic oil tank is preferably a closed-type hydraulic oil tank. This system enables conventional power supply and motion control for all actuators of the loader, adapting to the heavy-duty operation requirements of container loaders.

[0030] Furthermore, each emergency module is hydraulically connected to the manual pump 100. Specifically, the brake emergency module 200 is connected in series between the parking brake 601 and the loader hydraulic system 605, the outrigger emergency module 300 is connected in series between the outrigger cylinder 602 and the loader hydraulic system 605, the bridge platform emergency module 400 is connected in series between the bridge platform lifting cylinder 603 and the loader hydraulic system 605, and the main platform emergency module 500 is connected in series between the main platform lifting cylinder 604 and the loader hydraulic system 605.

[0031] Each emergency module is deployed independently and does not interfere with each other. It can be activated individually or simultaneously according to the actual fault scenario, which effectively improves the flexibility and reliability of emergency response and avoids the failure of a single module affecting the realization of the overall emergency function.

[0032] Specifically, the emergency braking module 200 includes a first circuit cut-off needle valve SYJ1 and a first emergency circuit connection needle valve Q1. The first circuit cut-off needle valve SYJ1 is initially fully open, and the first emergency circuit connection needle valve Q1 is initially fully closed.

[0033] The first circuit shut-off needle valve SYJ1 is preferably a fully adjustable needle valve, which can achieve stepless adjustment from fully closed to maximum orifice diameter. It can reliably shut off the circuit and also assist in adjusting the flow rate to meet the pressure requirements of the BRK circuit. The first emergency circuit connection needle valve Q1 is preferably a high-pressure ball valve with a pressure resistance rating of ≥31.5MPa. It has the characteristics of good sealing performance and convenient operation, and can quickly connect the emergency hydraulic circuit to ensure the timeliness of emergency braking action.

[0034] The first circuit cut-off needle valve SYJ1 is connected in series to the BRK circuit of the parking brake 601 and the loader hydraulic system 605. The input end of the first emergency circuit connection needle valve Q1 is hydraulically connected to the manual pump 100, and the output end is connected to the parking brake 601 after merging with the output end of the first circuit cut-off needle valve SYJ1.

[0035] The parking brake 601 is preferably a hydraulic release parking brake, which, in conjunction with the needle valve and manual pump 100 mentioned above, can achieve rapid unlocking and locking in emergency situations, ensuring safety and controllability during the loader's towing process.

[0036] Furthermore, the outrigger emergency module 300 includes a second circuit cut-off needle valve SYJ2 and a second emergency circuit connection needle valve Q2. The original states of both the second circuit cut-off needle valve SYJ2 and the second emergency circuit connection needle valve Q2 are completely closed.

[0037] Among them, the second circuit cut-off needle valve SYJ2 and the second emergency circuit connection needle valve Q2 are preferably adjustable needle valves to ensure the component commonality of each emergency module, reduce maintenance costs, and meet the flow and pressure control requirements of the outrigger circuit.

[0038] The input end of the second emergency circuit connecting needle valve Q2 is hydraulically connected to the rodless chamber of the outrigger cylinder 602. The output end of the second emergency circuit connecting needle valve Q2 is hydraulically connected to the hydraulic oil tank. The input end of the second circuit cutting-off needle valve SYJ2 is hydraulically connected to the manual pump 100. The output end of the second circuit cutting-off needle valve SYJ2 is hydraulically connected to the outrigger cylinder 602.

[0039] The hydraulic oil tank is preferably a closed hydraulic oil tank with a volume of 100L. It has good dustproof and heat dissipation performance, which can effectively protect the cleanliness of the hydraulic oil and extend the service life of each hydraulic component.

[0040] Eight outrigger cylinders 602 are provided. The rodless chambers of the eight outrigger cylinders 602 are connected to the input end of the needle valve Q2 of the second emergency circuit via hydraulic pipelines. The outrigger cylinders 602 are preferably double-acting hydraulic cylinders with a cylinder diameter of 100mm, a rod diameter of 50mm, a rated pressure of 25MPa, and a rated load of ≥50kN per cylinder. The synchronous operation of the eight cylinders can ensure that the loader remains stable and tilt-free when the outriggers are retracted in an emergency, which is suitable for the heavy-duty operation characteristics of container loaders.

[0041] Furthermore, the hydraulic control terminals of the eight outrigger cylinders 602 are hydraulically connected to the output terminal of the second circuit shut-off needle valve SYJ2 via hydraulic pipelines. The hydraulic pipelines preferably use high-pressure hydraulic hoses with a pressure resistance rating of 31.5 MPa, and the pipeline joints preferably use compression fittings to ensure a secure and reliable connection, preventing hydraulic oil leakage during emergency operations and ensuring the stable implementation of emergency actions.

[0042] The bridge platform emergency module 400 includes a third circuit cut-off needle valve SYJ3 and a third emergency circuit connection needle valve Q3. The original state of the third circuit cut-off needle valve SYJ3 is fully open, and the original state of the third emergency circuit connection needle valve Q3 is fully closed.

[0043] Among them, the third circuit cut-off needle valve SYJ3 and the third emergency circuit connection needle valve Q3 are preferably adjustable needle valves, which are consistent with the needle valves of the braking and outrigger emergency modules, making it easy to maintain and replace them later. At the same time, they can accurately control the on / off and flow regulation of the bridge platform lifting circuit.

[0044] The third circuit cut-off needle valve SYJ3 is connected in series in the PLL circuit of the bridge platform lifting cylinder 603 and the loader hydraulic system 605. The input end of the third emergency circuit connection needle valve Q3 is hydraulically connected to the manual pump 100. The output end of the third emergency circuit connection needle valve Q3 and the output end of the third circuit cut-off needle valve SYJ3 are combined and then hydraulically connected to the bridge platform lifting cylinder 603.

[0045] The bridge platform lifting cylinder 603 preferably adopts a double-acting hydraulic cylinder with a cylinder diameter of 125mm, a rod diameter of 70mm, a rated pressure of 25MPa, and a stroke of 1500mm. It can meet the load requirements for lifting and lowering the bridge platform and is suitable for loading and unloading operations of containerized goods.

[0046] The main platform emergency module 500 includes a fourth circuit cut-off needle valve SYJ4 and a fourth emergency circuit connection needle valve Q4. The original state of the fourth circuit cut-off needle valve SYJ4 is fully open, and the original state of the fourth emergency circuit connection needle valve Q4 is fully closed.

[0047] Among them, the fourth circuit cut-off needle valve SYJ4 and the fourth emergency circuit connection needle valve Q4 are preferably adjustable needle valves, consistent with other emergency modules, to ensure the component commonality of the entire emergency system, reduce design and manufacturing costs, and at the same time ensure the reliable switching of the main platform lifting circuit.

[0048] The fourth circuit cut-off needle valve SYJ4 is connected in series in the AR circuit of the main platform lifting cylinder 604 and the loader hydraulic system 605. The input end of the fourth emergency circuit connection needle valve Q4 is hydraulically connected to the manual pump 100, and the output end of the fourth emergency circuit connection needle valve Q4 and the output end of the fourth circuit cut-off needle valve SYJ4 are combined and then hydraulically connected to the main platform lifting cylinder 604.

[0049] The main platform lifting cylinder 604 preferably adopts a double-acting hydraulic cylinder of the same type as the bridge platform lifting cylinder 603 to ensure the synchronization of the lifting actions of the main platform and the bridge platform and improve the coordination of emergency operations.

[0050] Both the bridge platform lifting cylinder 603 and the main platform lifting cylinder 604 are equipped with a lock-up valve A, which is hydraulically connected to the output ends of the third emergency circuit connection needle valve Q3 and the fourth emergency circuit connection needle valve Q4, respectively.

[0051] Locking valve A is preferably a two-way hydraulic balance valve, which is installed in a plate-mounted manner with a thread specification of M18×1.5. This valve has a two-way locking function, which can lock the position of the oil cylinder at any time during emergency descent to prevent the oil cylinder from accidentally slipping due to its own weight or load, thereby improving the safety of emergency operation and meeting the locking requirements of the lifting oil cylinder.

[0052] A fifth needle valve SYIJ is connected in series in the hydraulic circuit of the bridge platform emergency module 400. The fifth needle valve SYIJ is hydraulically connected to the gravity descent control circuit of the bridge platform lifting cylinder 603. The fifth needle valve SYIJ is preferably an adjustable needle valve, which can precisely control the gravity descent speed of the bridge platform lifting cylinder 603 by adjusting the opening of the needle valve, avoiding equipment damage or safety accidents caused by excessive descent. At the same time, it can realize mid-course locking during descent, improving the controllability of emergency operation.

[0053] Furthermore, the brake emergency module 200, outrigger emergency module 300, bridge platform emergency module 400, and main platform emergency module 500 are all connected to the corresponding components of the manual pump 100 and loader 600, as well as the loader hydraulic system 605, via hydraulic pipelines.

[0054] The manual pump 100 preferably adopts a double-acting manual hydraulic pump with a displacement of 20cc / r, a maximum pressure of 300bar, an oil suction port specification of G1 / 2, and an oil outlet thread of G3 / 8. It features easy operation and uninterrupted oil supply, and can provide stable hydraulic power to various emergency modules when the loader hydraulic system 605 fails. It is suitable for manual operation requirements in emergency scenarios. In addition, the pump is equipped with an unloading valve, which can effectively protect the hydraulic circuit and prevent damage to components due to excessive pressure.

[0055] Example 2

[0056] Reference Figures 1-6This is a second embodiment of the present invention, which differs from the first embodiment in that it provides an emergency operation method for a container loader, based on the aforementioned emergency operation and evacuation system for a container loader, and includes the following steps:

[0057] According to emergency needs, operate the corresponding emergency module to cut off the hydraulic circuit between the corresponding component of the loader 600 and the hydraulic system 605 of the loader, and at the same time connect the hydraulic circuit between the component and the manual pump 100. Multiple emergency modules can be operated individually or simultaneously.

[0058] In this step, the needle valves of each emergency module are operated by manual rotation adjustment with an operating angle of ≤180°, which can quickly complete the circuit switching and adapt to the rapid response needs in emergency scenarios. Each module operates independently without interfering with each other, and the operation mode can be flexibly selected according to the fault type to improve the efficiency of emergency response. Fault types include brake failure only, outrigger failure only, or multiple components failing simultaneously.

[0059] Furthermore, the manual pump 100 is driven to output hydraulic pressure, which is transmitted to the corresponding component of the loader 600 through the hydraulic pipeline, and the component completes the emergency action in conjunction with its own weight.

[0060] Among them, the manual pump 100 has an operating force of ≤500N and can output hydraulic pressure ≥10MPa with a single cranking of the handle. It can quickly provide sufficient hydraulic power for each emergency circuit. Combined with the self-weight of each actuator, it can achieve efficient emergency action without the need for an external power source. It is suitable for special scenarios such as aircraft approach positions where there is no external power source. Moreover, it is easy to operate, and a single person can complete the cranking operation of the manual pump.

[0061] Furthermore, after the emergency action is completed, the pipeline on / off status of the corresponding emergency module is reset, restoring the hydraulic circuit connection between the corresponding component of the loader 600 and the loader hydraulic system 605. The reset operation is the reverse of the emergency operation, making it simple and easy to understand. After the reset, each emergency module returns to its original state, without affecting the normal operation of the loader 600, ensuring that the equipment can be quickly put into normal use after emergency response and reducing the impact on work efficiency.

[0062] Specifically, when operating the emergency braking module 200, the first circuit cut-off needle valve SYJ1 is closed. The first circuit cut-off needle valve SYJ1 is preferably an adjustable needle valve to cut off the BRK circuit between the parking brake 601 and the loader hydraulic system 605. The parking brake 601 is preferably a hydraulic release parking brake. The first emergency circuit connection needle valve Q1 is fully opened. The first emergency circuit connection needle valve Q1 is preferably a high-pressure ball valve to connect the hydraulic circuit between the parking brake 601 and the manual pump 100.

[0063] The manual pump 100 is preferably a double-acting manual hydraulic pump. After the manual pump 100 is cranked to inject hydraulic oil into the parking brake 601 to the preset pressure and flow rate, the first emergency circuit is closed and the needle valve Q1 is connected. After the loader 600 is towed to the designated location at a speed of ≤3km / h, the first circuit cut-off needle valve SYJ1 is fully opened to restore the circuit connection. The preset pressure is preferably 15~20MPa and the preset flow rate is preferably 10~15L / min.

[0064] This operating procedure enables rapid unlocking and reset of the parking brake, with the towing speed controlled at ≤3km / h. This avoids equipment loss of control due to excessive speed during towing, ensuring the safety of the evacuation process and meeting the low-speed evacuation requirements of aircraft near the parking position.

[0065] When operating the outrigger emergency module 300, fully open the second emergency circuit connection needle valve Q2. The second emergency circuit connection needle valve Q2 is preferably an adjustable needle valve to connect the hydraulic circuit between the rodless chamber of the outrigger cylinder 602 and the hydraulic oil tank. The outrigger cylinder 602 is preferably a double-acting hydraulic cylinder, and the hydraulic oil tank is preferably a closed hydraulic oil tank. Fully open the second circuit cut-off needle valve SYJ2. The second circuit cut-off needle valve SYJ2 is preferably an adjustable needle valve to connect the hydraulic circuit between the outrigger cylinder 602 and the manual pump 100. The manual pump 100 is preferably a double-acting manual hydraulic pump. Shake the manual pump 100 until all eight outrigger cylinders 602 are retracted. First, fully close the second emergency circuit connection needle valve Q2, and then fully close the second circuit cut-off needle valve SYJ2. The loader hydraulic system 605 locks the retracted state of the outrigger cylinders 602.

[0066] The eight outrigger cylinders retract synchronously, with a retraction time of ≤2 minutes. After retraction, the outriggers are locked by the multi-way directional valve of the loader's hydraulic system. The multi-way directional valve is preferably a segmented multi-way directional valve to ensure that the outriggers are in a stable position after retraction, preventing the outriggers from accidentally extending during traction and ensuring traction safety. At the same time, the synchronization of the eight cylinders can effectively prevent the machine body from tilting, protecting the equipment and the surrounding environment.

[0067] Further, when operating the bridge platform emergency module 400, the third circuit cut-off needle valve SYJ3 is closed. The third circuit cut-off needle valve SYJ3 is preferably an adjustable needle valve to cut off the PLL circuit between the bridge platform lifting cylinder 603 and the loader hydraulic system 605. The bridge platform lifting cylinder 603 is preferably a double-acting hydraulic cylinder. The third emergency circuit connection needle valve Q3 is fully opened. The third emergency circuit connection needle valve Q3 is preferably an adjustable needle valve to connect the hydraulic circuit between the bridge platform lifting cylinder 603 and the manual pump 100. The manual pump 100 is preferably a double-acting manual hydraulic pump. The manual pump 100 is cranked to open the locking valve A. The locking valve A is preferably a two-way hydraulic balance valve, causing the bridge platform lifting cylinder 603 to lower due to its own weight. If the operation is stopped midway, the fifth needle valve SYIJ can be operated. The fifth needle valve SYIJ is preferably an adjustable needle valve to lock the cylinder position. After descending to the preset height, fully open the third circuit cut-off needle valve SYJ3, fully close the third emergency circuit connection needle valve Q3, and restore circuit connectivity.

[0068] Locking valve A can be quickly unlocked under hydraulic pressure, with an unlocking time of ≤3s. The fifth needle valve SYIJ can achieve precise locking at any position. After locking, the cylinder has no displacement. The descent speed can be adjusted to 5-10mm / s through the fifth needle valve to avoid the bridge platform and the cargo falling due to excessive descent, thereby improving the safety and controllability of emergency operations.

[0069] When operating the main platform emergency module 500, the fourth circuit cut-off needle valve SYJ4 is closed. The fourth circuit cut-off needle valve SYJ4 is preferably an adjustable needle valve to cut off the AR circuit between the main platform lifting cylinder 604 and the loader hydraulic system 605. The main platform lifting cylinder 604 is preferably a double-acting hydraulic cylinder. The fourth emergency circuit connection needle valve Q4 is fully opened. The fourth emergency circuit connection needle valve Q4 is preferably an adjustable needle valve to connect the hydraulic circuit between the main platform lifting cylinder 604 and the manual pump 100. The manual pump 100 is preferably a double-acting manual hydraulic pump.

[0070] Furthermore, manually operate pump 100 to open lock valve A. Lock valve A preferably uses a two-way hydraulic balance valve, allowing the main platform lifting cylinder 604 to descend due to its own weight. If stopping midway, the fourth circuit cut-off needle valve SYJ4 can be fully opened directly. After descending to the preset position, the fourth circuit cut-off needle valve SYJ4 is fully opened, the fourth emergency circuit connection needle valve Q4 is fully closed, and the circuit connection is restored. The descent speed of the main platform lifting cylinder is consistent with that of the bridge platform, ensuring coordinated movement of the two platforms. Mid-operation stops are convenient, requiring no additional adjustments to other components, improving the convenience of emergency operations. Simultaneously, the locking function of lock valve A effectively prevents the main platform from accidentally falling, ensuring operational safety.

[0071] When the loader 600 needs to be urgently evacuated from the aircraft's near position, the emergency braking module 200 should be operated first to release the parking brake and tow the loader 600 to a safe area away from the aircraft's near position. Then, the remaining emergency modules should be operated in sequence to complete the emergency actions of the corresponding components.

[0072] This operational sequence prioritizes the safety of the aircraft near the parking position, avoids complex emergency operations by the loader within the parking position, reduces safety hazards to the aircraft, and improves the safety and convenience of emergency operations by towing the aircraft to a safe area before proceeding with subsequent operations, thus adapting to the special operational requirements of airports.

[0073] When the loader 600 malfunctions, all emergency modules are operated simultaneously. After the emergency actions of releasing the parking brake 601, retracting the outrigger cylinder 602, lowering the bridge platform lifting cylinder 603 and the main platform lifting cylinder 604 are completed in sequence, the loader 600 is towed away from the aircraft near the aircraft position at a speed of ≤3km / h.

[0074] Synchronous operation can shorten emergency response time, with the entire emergency action completed in ≤5 minutes. It can quickly evacuate the malfunctioning loader to a safe area, avoiding disruption to the normal operation of the airport. At the same time, the good synchronization and coordination of each emergency module can ensure that the emergency action is smooth and orderly, avoiding equipment damage or safety accidents.

[0075] During reset, individual emergency modules that have completed emergency operations can be reset individually, or all emergency modules can be reset simultaneously. Individual reset is suitable for scenarios where some emergency modules do not need to be reset after operation, improving operational flexibility; simultaneous reset can quickly complete the reset of all modules, improving work efficiency. The two reset methods can be flexibly selected according to actual needs to adapt to different emergency response scenarios.

[0076] An unreset emergency module only affects the piping status of its corresponding loader component 600, without interfering with the normal connection and operation of other components of the loader 600 and the loader hydraulic system 605. This design ensures that even if some emergency modules fail to reset, the remaining components of the loader can still operate normally, avoiding the entire machine from failing to operate due to a single module's failure to reset, improving the equipment's fault tolerance and reliability, and reducing the impact of emergency response on normal operation.

[0077] Furthermore, in practical use, this system addresses the emergency scenario of a sudden hydraulic system failure in a container cargo loader at an airport aircraft parking position. Its complete workflow is as follows:

[0078] First, the fault was confirmed; when the loader 600 was loading and unloading containerized cargo at the aircraft's near-mount position, the loader's hydraulic system 605 suddenly failed, and the various actuators (parking brake 601, outrigger cylinder 602, etc.) could not operate normally. The operator immediately determined that the emergency operation evacuation system needed to be activated.

[0079] Then, in the emergency braking operation, the operator operates the emergency braking module 200, closes the first circuit cut-off needle valve SYJ1, cuts off the BRK circuit between the parking brake 601 and the loader hydraulic system 605, then fully opens the first emergency circuit connection needle valve Q1, connects the hydraulic circuit between the parking brake 601 and the manual pump 100, and cranks the manual pump 100 to inject hydraulic oil into the parking brake 601 to a preset pressure of 15~20MPa and a preset flow rate of 10~15L / min. Then, the operator closes the first emergency circuit connection needle valve Q1, thus completing the release of the parking brake.

[0080] Afterwards, perform an emergency outrigger operation. Operate the outrigger emergency module 300 to fully open the second emergency circuit connection needle valve Q2, connecting the rodless chamber of the outrigger cylinder 602 to the hydraulic oil tank. Simultaneously, fully open the second circuit cut-off needle valve SYJ2, connecting the hydraulic circuit between the outrigger cylinder 602 and the manual pump 100. Agitate the manual pump 100 until all eight outrigger cylinders 602 retract synchronously. First, fully close the second emergency circuit connection needle valve Q2, then fully close the second circuit cut-off needle valve SYJ2. The multi-way directional valve of the loader hydraulic system 605 locks the outrigger retraction state.

[0081] Next, the bridge platform emergency operation is performed. The bridge platform emergency module 400 is operated to close the third circuit cut-off needle valve SYJ3, cutting off the PLL circuit between the bridge platform lifting cylinder 603 and the loader hydraulic system 605. The third emergency circuit connection needle valve Q3 is fully opened to connect the hydraulic circuit between the bridge platform lifting cylinder 603 and the manual pump 100. The manual pump 100 is cranked to open the locking valve A, allowing the bridge platform lifting cylinder 603 to descend smoothly under its own weight. If it is necessary to stop midway during the descent, the fifth needle valve SYIJ is operated to lock the cylinder position. After descending to the preset safe height, the third circuit cut-off needle valve SYJ3 is fully opened and the third emergency circuit connection needle valve Q3 is fully closed to restore the circuit connection between the bridge platform lifting cylinder 603 and the loader hydraulic system 605.

[0082] Furthermore, in the main platform emergency operation, operate the main platform emergency module 500, close the fourth circuit cut-off needle valve SYJ4, cut off the AR circuit between the main platform lifting cylinder 604 and the loader hydraulic system 605, fully open the fourth emergency circuit connection needle valve Q4, connect the hydraulic circuit between the main platform lifting cylinder 604 and the manual pump 100, and crank the manual pump 100 to open the lock valve A, so that the main platform lifting cylinder 604 descends smoothly under its own weight. If it is necessary to stop midway, simply fully open the fourth circuit cut-off needle valve SYJ4. After descending to the preset position, fully open the fourth circuit cut-off needle valve SYJ4 and fully close the fourth emergency circuit connection needle valve Q4 to restore the circuit connection between the main platform lifting cylinder 604 and the loader hydraulic system 605.

[0083] Afterwards, the entire machine was towed away. Once all emergency actions were completed, the operators towed the loader 600 to a safe area outside the aircraft's parking position at a speed of ≤3km / h.

[0084] Finally, the system is reset. After reaching the safe area, the operator simultaneously resets all emergency modules, reverses the operation of each needle valve to restore each emergency module to its original state, and reconnects the circuit between each actuator and the loader's hydraulic system 605, thus completing the entire emergency evacuation process.

[0085] Through the above complete process, the emergency evacuation of a malfunctioning loader can be completed quickly and safely without external power or professional maintenance tools, effectively ensuring the safety of near-aircraft positions at the airport and preventing malfunctioning equipment from affecting the normal operation of the airport.

[0086] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. An emergency operation and evacuation system for a container cargo loader, characterized in that: Includes a manual pump (100), a brake emergency module (200), an outrigger emergency module (300), a bridge platform emergency module (400), a main platform emergency module (500), and a loader (600). The loader (600) is equipped with a parking brake (601), outrigger cylinders (602), bridge platform lifting cylinders (603), main platform lifting cylinders (604) and a loader hydraulic system (605). Each of the emergency modules is hydraulically connected to the manual pump (100), wherein the brake emergency module (200) is connected in series between the parking brake (601) and the loader hydraulic system (605), the outrigger emergency module (300) is connected in series between the outrigger cylinder (602) and the loader hydraulic system (605), the bridge platform emergency module (400) is connected in series between the bridge platform lifting cylinder (603) and the loader hydraulic system (605), and the main platform emergency module (500) is connected in series between the main platform lifting cylinder (604) and the loader hydraulic system (605); The emergency braking module (200) includes a first circuit cut-off needle valve (SYJ1) and a first emergency circuit connection needle valve (Q1). The first circuit cut-off needle valve (SYJ1) is initially fully open, and the first emergency circuit connection needle valve (Q1) is initially fully closed. The first circuit cut-off needle valve (SYJ1) is connected in series to the BRK circuit of the parking brake (601) and the loader hydraulic system (605). The input end of the first emergency circuit connection needle valve (Q1) is hydraulically connected to the manual pump (100), and the output end is connected to the parking brake (601) after merging with the output end of the first circuit cut-off needle valve (SYJ1). The outrigger emergency module (300) includes a second circuit cut-off needle valve (SYJ2) and a second emergency circuit connection needle valve (Q2). The second circuit cut-off needle valve (SYJ2) and the second emergency circuit connection needle valve (Q2) are both completely closed in their original state. The input end of the second emergency circuit connecting needle valve (Q2) is hydraulically connected to the rodless chamber of the outrigger cylinder (602), the output end of the second emergency circuit connecting needle valve (Q2) is hydraulically connected to the hydraulic oil tank, the input end of the second circuit cutting-off needle valve (SYJ2) is hydraulically connected to the manual pump (100), and the output end of the second circuit cutting-off needle valve (SYJ2) is hydraulically connected to the outrigger cylinder (602). The bridge platform emergency module (400) includes a third circuit cut-off needle valve (SYJ3) and a third emergency circuit connection needle valve (Q3). The original state of the third circuit cut-off needle valve (SYJ3) is fully open, and the original state of the third emergency circuit connection needle valve (Q3) is fully closed. The third circuit cut-off needle valve (SYJ3) is connected in series to the PLL circuit of the bridge platform lifting cylinder (603) and the loader hydraulic system (605). The input end of the third emergency circuit connection needle valve (Q3) is hydraulically connected to the manual pump (100). The output end of the third emergency circuit connection needle valve (Q3) and the output end of the third circuit cut-off needle valve (SYJ3) are combined and then hydraulically connected to the bridge platform lifting cylinder (603). The main platform emergency module (500) includes a fourth circuit cut-off needle valve (SYJ4) and a fourth emergency circuit connection needle valve (Q4). The original state of the fourth circuit cut-off needle valve (SYJ4) is fully open, and the original state of the fourth emergency circuit connection needle valve (Q4) is fully closed. The fourth circuit cut-off needle valve (SYJ4) is connected in series to the AR circuit of the main platform lifting cylinder (604) and the loader hydraulic system (605). The input end of the fourth emergency circuit connection needle valve (Q4) is hydraulically connected to the manual pump (100). The output end of the fourth emergency circuit connection needle valve (Q4) and the output end of the fourth circuit cut-off needle valve (SYJ4) are combined and then hydraulically connected to the main platform lifting cylinder (604).

2. The emergency operation and evacuation system for containerized cargo loaders according to claim 1, characterized in that: The outrigger cylinders (602) are provided in eight units. The rodless chambers of the eight outrigger cylinders (602) are connected to the input end of the needle valve (Q2) of the second emergency circuit after being gathered by hydraulic pipelines. The hydraulic control ends of the eight outrigger cylinders (602) are connected to the output end of the second circuit shut-off needle valve (SYJ2) via hydraulic pipelines. Both the bridge platform lifting cylinder (603) and the main platform lifting cylinder (604) are equipped with a lock-up valve (A). The lock-up valve (A) is hydraulically connected to the output ends of the third emergency circuit connection needle valve (Q3) and the fourth emergency circuit connection needle valve (Q4), respectively. A fifth needle valve (SYIJ) is connected in series in the hydraulic circuit of the bridge platform emergency module (400), and the fifth needle valve (SYIJ) is hydraulically connected to the gravity descent control passage of the bridge platform lifting cylinder (603).

3. The emergency operation and evacuation system for containerized cargo loaders according to claim 1 or 2, characterized in that: The emergency braking module (200), outrigger emergency module (300), bridge platform emergency module (400), and main platform emergency module (500) are all connected to the corresponding components of the manual pump (100) and loader (600) and the loader hydraulic system (605) via hydraulic pipelines.

4. An emergency operation method for a container cargo loader, characterized in that: The emergency operation and evacuation system for containerized cargo loaders according to any one of claims 1 to 3 includes the following steps: According to emergency needs, operate the corresponding emergency module to cut off the hydraulic circuit between the corresponding component of the loader (600) and the hydraulic system (605) of the loader, and at the same time connect the hydraulic circuit between the component and the manual pump (100). Multiple emergency modules can be operated individually or simultaneously. The manual pump (100) is driven to output hydraulic pressure, which is transmitted to the corresponding component of the loader (600) through the hydraulic pipeline, and the emergency action is completed in conjunction with the weight of the component. After the emergency action is completed, the pipeline on / off status of the corresponding emergency module is reset, and the hydraulic circuit connection between the corresponding component of the loader (600) and the hydraulic system (605) of the loader is restored.

5. The emergency operation method for a container cargo loader according to claim 4, characterized in that: When operating the emergency braking module (200), close the first circuit cut-off needle valve (SYJ1) to cut off the BRK circuit between the parking brake (601) and the loader hydraulic system (605), fully open the first emergency circuit connection needle valve (Q1) to connect the hydraulic circuit between the parking brake (601) and the manual pump (100), crank the manual pump (100) to inject hydraulic oil into the parking brake (601) to the preset pressure and flow rate, then close the first emergency circuit connection needle valve (Q1), and after towing the loader (600) to the designated location at a speed of ≤3km / h, fully open the first circuit cut-off needle valve (SYJ1) to restore the circuit connection; When operating the outrigger emergency module (300), fully open the second emergency circuit connection needle valve (Q2) to connect the hydraulic circuit between the rodless chamber of the outrigger cylinder (602) and the hydraulic oil tank, fully open the second circuit cut-off needle valve (SYJ2) to connect the hydraulic circuit between the outrigger cylinder (602) and the manual pump (100), and crank the manual pump (100) until all eight outrigger cylinders (602) are retracted. First, fully close the second emergency circuit connection needle valve (Q2) and then fully close the second circuit cut-off needle valve (SYJ2). The loader hydraulic system (605) locks the retracted state of the outrigger cylinders (602).

6. The emergency operation method for a container cargo loader according to claim 5, characterized in that: When operating the bridge platform emergency module (400), close the third circuit cut-off needle valve (SYJ3) to cut off the PLL circuit between the bridge platform lifting cylinder (603) and the loader hydraulic system (605), fully open the third emergency circuit connection needle valve (Q3) to connect the hydraulic circuit between the bridge platform lifting cylinder (603) and the manual pump (100), shake the manual pump (100) to open the locking valve (A) so that the bridge platform lifting cylinder (603) descends by its own weight. If it stops midway, the fifth needle valve (SYIJ) can be operated to lock the cylinder position. After it descends to the preset height, fully open the third circuit cut-off needle valve (SYJ3) and fully close the third emergency circuit connection needle valve (Q3) to restore the circuit connection. When operating the main platform emergency module (500), close the fourth circuit cut-off needle valve (SYJ4) to cut off the AR circuit between the main platform lifting cylinder (604) and the loader hydraulic system (605), fully open the fourth emergency circuit connection needle valve (Q4) to connect the hydraulic circuit between the main platform lifting cylinder (604) and the manual pump (100), shake the manual pump (100) to open the lock valve (A) so that the main platform lifting cylinder (604) descends by its own weight. If it stops midway, the fourth circuit cut-off needle valve (SYJ4) can be fully opened directly. After descending to the preset position, the fourth circuit cut-off needle valve (SYJ4) is fully opened and the fourth emergency circuit connection needle valve (Q4) is fully closed to restore the circuit connection.

7. The emergency operation method for a container cargo loader according to claim 5 or 6, characterized in that: When the loader (600) needs to be urgently evacuated from the aircraft's near-mount position, the emergency braking module (200) should be operated first to release the parking brake, and the loader (600) should be towed to a safe area that is not near the aircraft's near-mount position. Then, the remaining emergency modules should be operated in sequence to complete the emergency actions of the corresponding components.

8. The emergency operation method for a container cargo loader according to claim 7, characterized in that: When the loader (600) malfunctions, all emergency modules are operated simultaneously to sequentially complete the emergency actions of releasing the parking brake (601), retracting the outrigger cylinder (602), and lowering the bridge platform lifting cylinder (603) and the main platform lifting cylinder (604). Then, the loader (600) is towed away from the aircraft's near position at a speed of ≤3km / h.

9. The emergency operation method for a container cargo loader according to claim 8, characterized in that: During reset, a single emergency module that has completed the emergency operation can be reset individually, or all emergency modules can be reset simultaneously. An unreset emergency module only affects the pipeline status of its corresponding loader (600) component and does not interfere with the normal connection and operation of other components of the loader (600) and the loader hydraulic system (605).

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