Portable hydraulic support equipment suitable for helicopter

Abstract

The utility model relates to portable hydraulic support equipment suitable for helicopters, which comprises a bottom plate, a hydraulic oil tank, a hydraulic pump, an oil filter, a pressure accumulator and a radiator, the hydraulic oil tank, the hydraulic pump, the oil filter, the pressure accumulator and the radiator are all mounted on the bottom plate, the output end of the hydraulic oil tank is communicated with the input end of the hydraulic pump, and the output end of the hydraulic pump is communicated with the output end of the radiator. The output end of the hydraulic pump is communicated with the input end of the oil filter, the output end of the oil filter is communicated with the input end of the pressure accumulator, the output end of the pressure accumulator is communicated with an oil injection port of the helicopter hydraulic system, and an oil outlet of the helicopter hydraulic system is communicated with the input end of the radiator. The output end of the radiator is communicated with the first input end of the hydraulic oil tank, the hydraulic oil tank, the hydraulic pump, the oil filter, the pressure accumulator, the helicopter hydraulic system and the radiator are communicated in sequence to form an oil injection loop, and the oil injection device can move along with the helicopter in the field and meet the accompanying guarantee requirements in special environments.

Description

Technical Field

[0001] This utility model relates to the field of helicopter hydraulic oil filling technology, specifically a portable hydraulic support device suitable for helicopters. Background Technology

[0002] When helicopters are on missions, their hydraulic systems may experience malfunctions requiring oil contamination analysis, oil filter cleaning, or replacement. After maintenance, the hydraulic oil level in the tank may be low. Since the tank is a pressurized type, it needs to be refilled using a pump-type or hand-push hydraulic refueling truck. These trucks are bulky and inconvenient to move with the helicopter in the field, severely limiting their support capabilities in special environments. Furthermore, existing mobile hydraulic refueling trucks use 380V high voltage as their power source, which is dangerous and relatively expensive. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a portable hydraulic support device suitable for helicopters, addressing the above-mentioned shortcomings.

[0004] To solve the above technical problems, the present invention adopts the following technical solution:

[0005] A portable hydraulic support device suitable for helicopters includes a base plate, a hydraulic tank, a hydraulic pump, an oil filter, an accumulator, and a radiator. The hydraulic tank, hydraulic pump, oil filter, accumulator, and radiator are all mounted on the base plate. The output end of the hydraulic tank is connected to the input end of the hydraulic pump, the output end of the hydraulic pump is connected to the input end of the oil filter, the output end of the oil filter is connected to the input end of the accumulator, the output end of the accumulator is connected to the oil inlet of the helicopter's hydraulic system via a hydraulic hose, the oil outlet of the helicopter's hydraulic system is connected to the input end of the radiator via a hydraulic hose, and the output end of the radiator is connected to the first input end of the hydraulic tank. The hydraulic tank, hydraulic pump, oil filter, accumulator, helicopter hydraulic system, and radiator are sequentially connected to form an oil inlet circuit. The output end of the accumulator is also connected to the second input end of the hydraulic tank via a hydraulic hose to form a pressure relief circuit. This pressure relief circuit, after being connected, is used for pressure diversion and relief.

[0006] Furthermore, the output end of the accumulator is equipped with a one-way valve and a pressure gauge. The output end of the one-way valve is equipped with a first three-way connector. The one-way valve is used to allow hydraulic oil to flow only from the output end of the accumulator to the first three-way connector. The first output end of the first three-way connector is connected to the oil inlet of the helicopter hydraulic system through an oil pipe. The second output end of the first three-way connector is connected to a first shut-off valve through a hydraulic oil pipe. The output end of the first shut-off valve is equipped with a second three-way connector. The output end of the second three-way connector is connected to the second input end of the hydraulic oil tank through a hydraulic oil pipe. The first shut-off valve is used to control the opening and closing of the pressure relief circuit.

[0007] Furthermore, a four-way pipe joint is provided between the output end of the helicopter hydraulic system and the input end of the radiator, and a second shut-off valve is provided between the output end of the helicopter hydraulic system and the four-way pipe joint. The output end of the second shut-off valve is connected to the first input end of the four-way pipe joint, the first output end of the four-way pipe joint is connected to the input end of the radiator, and a pressure sensor for detecting the pressure of the oil injection circuit is provided at the second output end of the four-way pipe joint.

[0008] Furthermore, the second input end of the four-way pipe joint is connected to a bypass valve, and the output end of the bypass valve is connected to the second input end of the second three-way pipe joint to form a pressure relief branch of the oil injection circuit. The bypass valve is used to control the opening and closing of the pressure relief branch.

[0009] Furthermore, the base plate is also equipped with an external power socket, which is electrically connected to the hydraulic oil tank, hydraulic pump, oil filter, accumulator and radiator through wires, and the voltage of the external power socket is 24V.

[0010] Furthermore, a temperature sensor is provided on the radiator, which is used to detect the temperature of the hydraulic oil after it has been cooled by the radiator.

[0011] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0012] This invention integrates key components such as the hydraulic oil tank, hydraulic pump, oil filter, accumulator, and radiator onto a base plate, facilitating portability and mobility. It can accompany helicopters in field operations, adapting to the needs of accompanying support in special environments. Powered by a 24V external power socket, this low-voltage DC power supply significantly reduces the risk factor and improves safety compared to the 380V high-voltage power supply used in existing mobile hydraulic refueling vehicles. Precise control of the oil injection circuit pressure is achieved through components such as the accumulator, check valve, pressure gauge, shut-off valve, and bypass valve. When the accumulator output hydraulic oil pressure is too high, pressure can be diverted and released through a pressure relief circuit or branch, protecting the helicopter's hydraulic system from damage caused by excessive pressure.

[0013] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the hydraulic flow direction of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention (pipes and supporting structures are omitted);

[0016] Figure 3 This is a side view of the present invention (hydraulic oil pipes and supporting fixing structures are omitted).

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Base plate; 2. Hydraulic oil tank; 3. Hydraulic pump; 4. Oil filter; 5. Accumulator; 6. Radiator; 7. Helicopter hydraulic system; 8. Check valve; 9. Pressure gauge; 10. First tee connector; 11. First shut-off valve; 12. Second tee connector; 13. Four-way connector; 14. Second shut-off valve; 15. Pressure sensor; 16. Bypass valve; 17. External power socket; 18. Temperature sensor. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figure 1-3As shown, a portable hydraulic support device suitable for helicopters includes a base plate 1, a hydraulic oil tank 2, a hydraulic pump 3, an oil filter 4, an accumulator 5, and a radiator 6. The hydraulic oil tank 2, hydraulic pump 3, oil filter 4, accumulator 5, and radiator 6 are all mounted on the base plate 1. The output end of the hydraulic oil tank 2 is connected to the input end of the hydraulic pump 3, the output end of the hydraulic pump 3 is connected to the input end of the oil filter 4, and the output end of the oil filter 4 is connected to the input end of the accumulator 5. The output end of the accumulator 5 is connected to the helicopter via a hydraulic hose. The oil inlet of the helicopter hydraulic system 7 is connected, and the oil outlet of the helicopter hydraulic system 7 is connected to the input end of the radiator 6 through a hydraulic oil pipe. The output end of the radiator 6 is connected to the first input end of the hydraulic oil tank 2. The hydraulic oil tank 2, hydraulic pump 3, oil filter 4, accumulator 5, helicopter hydraulic system 7 and radiator 6 are connected in sequence to form an oil injection circuit. The output end of the accumulator 5 is also connected to the second input end of the hydraulic oil tank 2 through a hydraulic oil pipe to form a pressure relief circuit. The pressure relief circuit is used for diversion and pressure relief after being connected.

[0022] In one embodiment, the output end of the accumulator 5 is provided with a one-way valve 8 and a pressure gauge 9. The output end of the one-way valve 8 is provided with a first three-way connector 10. The one-way valve 8 is used to allow hydraulic oil to flow only from the output end of the accumulator 5 to the first three-way connector 10. The first output end of the first three-way connector 10 is connected to the oil inlet of the helicopter hydraulic system 7 through an oil pipe. The second output end of the first three-way connector 10 is connected to a first shut-off valve 11 through a hydraulic oil pipe. The output end of the first shut-off valve 11 is provided with a second three-way connector 12. The output end of the second three-way connector 12 is connected to the second input end of the hydraulic oil tank 2 through a hydraulic oil pipe. The first shut-off valve 11 is used to control the opening and closing of the pressure relief circuit.

[0023] In one embodiment, a four-way connector 13 is provided between the output end of the helicopter hydraulic system 7 and the input end of the radiator 6. A second shut-off valve 14 is provided between the output end of the helicopter hydraulic system 7 and the four-way connector 13. The output end of the second shut-off valve 14 is connected to the first input end of the four-way connector 13. The first output end of the four-way connector 13 is connected to the input end of the radiator 6. A pressure sensor 15 for detecting the pressure of the oil injection circuit is provided at the second output end of the four-way connector 13.

[0024] In one embodiment, the second input end of the four-way pipe joint 13 is connected to a bypass valve 16, and the output end of the bypass valve 16 is connected to the second input end of the second three-way pipe joint 12 to form a pressure relief branch of the oil injection circuit. The bypass valve 16 is used to control the opening and closing of the pressure relief branch.

[0025] In one embodiment, the base plate 1 is also provided with an external power socket 17. The external power socket 17 is electrically connected to the hydraulic oil tank 2, hydraulic pump 3, oil filter 4, accumulator 5 and radiator 6 through wires. The voltage of the external power socket 17 is 24V.

[0026] In one embodiment, a temperature sensor 18 is provided on the radiator 6, which is used to detect the temperature of the hydraulic oil after it has been cooled by the radiator.

[0027] In this utility model, the protection equipment can be moved by small transport tools such as small trailers or handcarts. A small pressure gauge is also set on the hydraulic pump 3. The pressure sensor 15 and the temperature sensor 18 are both equipped with display screens that can display real-time detection results. The pressure sensor 15 is model PN7032 and the temperature sensor 18 is model KX-SBWZ-2460.

[0028] The hydraulic oil flow direction of the pressure relief branch is as follows: from the four-way pipe joint 13 to the bypass valve 16, from the bypass valve 16 to the second three-way pipe joint 12, and from the second three-way pipe joint 12 to the hydraulic oil tank 2.

[0029] The working process of this utility model is as follows: Move the device near the helicopter and connect it to a 24V external power supply, ensuring that all components, including the hydraulic oil tank 2, hydraulic pump 3, oil filter 4, accumulator 5, and radiator 6, are working properly. Start the hydraulic pump 3, which draws hydraulic oil from the hydraulic oil tank 2 and pumps it to the oil filter 4. The hydraulic oil is filtered by the oil filter 4 to remove impurities and ensure its cleanliness. The filtered hydraulic oil enters the accumulator 5 for pressurization, while the output pressure of the accumulator 5 is monitored by the pressure gauge 9. When the pressure reaches the set value, the hydraulic oil is injected into the oil inlet of the helicopter hydraulic system 7 through the hydraulic oil pipe via the one-way valve 8 and the first three-way pipe joint 10. During this process, the second shut-off valve 14 remains open, allowing the hydraulic oil to flow normally into the helicopter hydraulic system 7. After circulating in the helicopter hydraulic system 7, the hydraulic oil flows out from the outlet. The operator monitors the temperature of the hydraulic oil flowing through the radiator 6 using the temperature sensor 18. If the temperature is too high, the radiator 6 is activated for cooling, and the cooled hydraulic oil returns to the hydraulic oil tank 2. If the temperature is low, turn off the radiator 6, open the bypass valve 16, and close the first shut-off valve 11. A portion of the hydraulic oil is pre-circulated to the hydraulic oil tank 2 via the pressure relief branch, causing the hydraulic oil temperature in the injection circuit to rise to a suitable level. During oil circulation, the operator monitors the injection circuit pressure using the pressure sensor 15. If the accumulator 5 output pressure is too high, manually open the first shut-off valve 11, and close the bypass valve 16. A portion of the hydraulic oil is diverted back to the hydraulic oil tank 2 through the first shut-off valve 11 and the second three-way connector 12, thus relieving pressure in the accumulator 5. If the injection circuit pressure is too high, open the bypass valve 16, and close the first shut-off valve 11. The hydraulic oil is diverted back to the hydraulic oil tank 2 through the bypass valve 16 and the second three-way connector 12, achieving pressure relief protection for the injection circuit.

[0030] After filling is complete, shut off hydraulic pump 3 and related valves, disconnect the 24V external power supply, and move the device to a safe location.

[0031] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A portable hydraulic support device suitable for helicopters, characterized in that, The system includes a base plate (1), a hydraulic oil tank (2), a hydraulic pump (3), an oil filter (4), an accumulator (5), and a radiator (6). The hydraulic oil tank (2), hydraulic pump (3), oil filter (4), accumulator (5), and radiator (6) are all mounted on the base plate (1). The output end of the hydraulic oil tank (2) is connected to the input end of the hydraulic pump (3), the output end of the hydraulic pump (3) is connected to the input end of the oil filter (4), the output end of the oil filter (4) is connected to the input end of the accumulator (5), and the output end of the accumulator (5) is connected to the helicopter hydraulic system via a hydraulic oil pipe. The oil inlet of the system (7) is connected, and the oil outlet of the helicopter hydraulic system (7) is connected to the input end of the radiator (6) through the hydraulic oil pipe. The output end of the radiator (6) is connected to the first input end of the hydraulic oil tank (2). The hydraulic oil tank (2), hydraulic pump (3), oil filter (4), accumulator (5), helicopter hydraulic system (7) and radiator (6) are connected in sequence to form an oil injection circuit. The output end of the accumulator (5) is also connected to the second input end of the hydraulic oil tank (2) through the hydraulic oil pipe to form a pressure relief circuit. The pressure relief circuit is used for diversion and pressure relief after being connected.

2. A portable hydraulic support device suitable for helicopters according to claim 1, characterized in that, The output end of the accumulator (5) is provided with a check valve (8) and a pressure gauge (9). The output end of the check valve (8) is provided with a first three-way pipe joint (10). The check valve (8) is used to allow hydraulic oil to flow only from the output end of the accumulator (5) to the first three-way pipe joint (10). The first output end of the first three-way pipe joint (10) is connected to the oil inlet of the helicopter hydraulic system (7) through an oil pipe. The second output end of the first three-way pipe joint (10) is connected to a first shut-off valve (11) through a hydraulic oil pipe. The output end of the first shut-off valve (11) is provided with a second three-way pipe joint (12). The output end of the second three-way pipe joint (12) is connected to the second input end of the hydraulic oil tank (2) through a hydraulic oil pipe. The first shut-off valve (11) is used to control the opening and closing of the pressure relief circuit.

3. A portable hydraulic support device suitable for helicopters according to claim 1, characterized in that, A four-way pipe joint (13) is provided between the output end of the helicopter hydraulic system (7) and the input end of the radiator (6). A second shut-off valve (14) is provided between the output end of the helicopter hydraulic system (7) and the four-way pipe joint (13). The output end of the second shut-off valve (14) is connected to the first input end of the four-way pipe joint (13). The first output end of the four-way pipe joint (13) is connected to the input end of the radiator (6). A pressure sensor (15) for detecting the pressure of the oil injection circuit is provided at the second output end of the four-way pipe joint (13).

4. A portable hydraulic support device suitable for helicopters according to claim 3, characterized in that, The second input end of the four-way pipe joint (13) is connected to a bypass valve (16). The output end of the bypass valve (16) is connected to the second input end of the second three-way pipe joint (12) to form a pressure relief branch of the oil injection circuit. The bypass valve (16) is used to control the opening and closing of the pressure relief branch.

5. A portable hydraulic support device suitable for helicopters according to claim 1, characterized in that, An external power socket (17) is also provided on the base plate (1). The external power socket (17) is electrically connected to the hydraulic oil tank (2), hydraulic pump (3), oil filter (4), accumulator (5) and radiator (6) through wires. The voltage of the external power socket (17) is 24V.

6. A portable hydraulic support device suitable for helicopters according to claim 1, characterized in that, A temperature sensor (18) is provided on the radiator (6), and the temperature sensor (18) is used to detect the temperature of the hydraulic oil after it has been cooled by the radiator.

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