Hydraulic emergency ejection system

Abstract

The utility model relates to the technical field of ejection system, concretely is a kind of hydraulic emergency ejection system, including energy accumulator, still include: ejection assembly, the ejection assembly is connected with energy accumulator, and energy accumulator provides energy for ejection assembly;Ejection assembly includes several spring return hydraulic cylinders, and spring return hydraulic cylinder is fixedly arranged in vehicle body, and control valve is connected between spring return hydraulic cylinder and energy accumulator, and control valve is used to control the flow of energy accumulator oil liquid.When emergency, the utility model injects hydraulic oil into spring return hydraulic cylinder by energy accumulator, and makes hydraulic cylinder push out.

Description

Technical Field

[0001] This utility model relates to the field of ejection system technology, and in particular to a hydraulic emergency ejection system. Background Technology

[0002] As an indispensable means of transportation in modern life, vehicles have a wide range of applications and diverse functions, solving daily travel needs such as family, work, and school, and providing flexibility and privacy; trucks, pickups, and other vehicles are used for cargo transportation, supporting industries such as e-commerce and supply chains.

[0003] A vehicle collision may cause door deformation and electronic system failure, making it difficult for occupants to escape in time and increasing the risk of secondary injuries. When a vehicle falls into water, the water pressure makes it difficult to open the doors, and ordinary emergency systems are prone to failure, which seriously threatens the lives of drivers and passengers. Currently, no hydraulic emergency jacking system has been found for use in vehicle emergency rescue. Utility Model Content

[0004] The main objective of this invention is to provide a hydraulic emergency ejection system to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a hydraulic emergency ejection system is provided, comprising an accumulator, and further comprising: An ejector assembly, which is connected to an energy storage device, provides energy to the ejector assembly; The ejection assembly includes several spring-return hydraulic cylinders, all of which are fixed inside the vehicle body. A control valve is connected between the spring-return hydraulic cylinders and the accumulator, and the control valve is used to control the flow of oil in the accumulator. It also includes a hydraulic oil tank, and a safety system is installed between the hydraulic oil tank and the accumulator. The oil inside the spring-reset hydraulic cylinder flows back to the hydraulic oil tank through the safety system.

[0006] Furthermore, the safety system includes a manual pressure relief valve and an overflow valve, one end of which is connected to the accumulator, and the other end of which is connected to a hydraulic oil tank.

[0007] Furthermore, the control valve includes a manual emergency valve and a solenoid valve.

[0008] Furthermore, the accumulator is connected to a filling port and a pressure sensor.

[0009] Furthermore, all the spring-reset hydraulic cylinders are fixedly installed inside the vehicle body.

[0010] Furthermore, the accumulator is equipped with a pressure testing port, and a pressure gauge is installed at the pressure testing port to test the pressure inside the accumulator.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In case of emergency, this invention injects hydraulic oil into the spring-return hydraulic cylinder via an accumulator, causing the cylinder to extend. A manual emergency valve and a solenoid valve are connected in parallel between the accumulator and the spring-return hydraulic cylinder. After a vehicle is impacted or falls into water, if the solenoid valve is functioning normally, it automatically opens, allowing the accumulator to inject hydraulic oil into the spring-return hydraulic cylinder. If the solenoid valve malfunctions, pulling the manual emergency valve will also allow the accumulator to inject hydraulic oil into the spring-return hydraulic cylinder. This dual design of the manual emergency valve and the solenoid valve ensures the timely extension of the spring-return hydraulic cylinder.

[0012] After the hydraulic cylinder ejection process is completed, the manual pressure relief valve is opened. Under the action of the spring force, the oil in the hydraulic cylinder will flow back to the hydraulic oil tank, and the oil will be recycled and stored in the hydraulic oil tank, achieving the purpose of oil recycling.

[0013] When the system needs to raise the oil pressure in the accumulator to the initial level, the hydraulic pump draws oil from the hydraulic oil tank to the filling port and then inputs the oil into the accumulator through the filling port, causing the internal oil pressure to rise to the initial level. During this process, if the oil pressure in the accumulator is higher than the initial level, the overflow valve will automatically open, causing oil to fill the hydraulic oil tank and ensuring that the oil pressure in the accumulator is always at a safe level. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the working principle of this utility model.

[0015] Figure label: 1. Accumulator; 2. Pressure gauge; 3. Pressure test port; 4. Manual pressure relief valve; 5. Overflow valve; 6. Hydraulic oil tank; 7. Filling port; 8. Pressure sensor; 9. Manual emergency valve; 10. Solenoid valve; 11. Spring return hydraulic cylinder; 12. Ball valve. Detailed Implementation

[0016] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0017] This embodiment provides a hydraulic emergency ejection system, such as Figure 1 As shown, it includes an accumulator 1 and an ejector assembly. The ejector assembly is connected to the accumulator 1. The accumulator 1 provides energy to the ejector assembly, causing the hydraulic cylinder 11 to be ejected (which can be used to eject parts such as car locks or the side of car windows).

[0018] The ejection assembly includes several spring-return hydraulic cylinders 11, all of which are fixed inside the vehicle body. A control valve is connected between the spring-return hydraulic cylinders 11 and the accumulator 1. The control valve is used to control the flow of oil in the accumulator 1. A safety system is installed between the accumulator 1 and the hydraulic oil tank 6. The safety system is used to ensure the safety of the accumulator 1.

[0019] The safety system includes a manual pressure relief valve 4 and an overflow valve 5. One end of both the manual pressure relief valve 4 and the overflow valve 5 is connected to the accumulator 1, and the other end is connected to the hydraulic oil tank 6. The accumulator 1 is equipped with a pressure test port 3, and the pressure gauge 2 tests the pressure inside the accumulator 1 at the pressure test port 3.

[0020] Accumulator 1 is connected to filling port 7 and pressure sensor 8. When pressure sensor 8 detects that the oil pressure inside accumulator 1 is too high, it opens manual pressure relief valve 4 to relieve pressure inside accumulator 1. The oil flowing out after pressure relief enters hydraulic oil tank 6.

[0021] The accumulator 1 is divided into upper and lower parts. The upper part stores compressible gas, usually nitrogen, and the lower part stores oil. The oil is pushed out by the pressure generated by the compressible gas and enters the spring return hydraulic cylinder 11. In the initial state, the accumulator 1 is filled with oil through the filling port 7, so that the compressible gas is compressed and the pressure is accumulated.

[0022] The control valves include a manual emergency valve 9 and a solenoid valve 10. A spring-return hydraulic cylinder 11 is connected to both the manual emergency valve 9 and the solenoid valve 10. Under normal circumstances, the ball valve 12 is open, and the manual emergency valve 9 is closed. When the solenoid valve 10 opens, the oil in the accumulator 1 flows into the spring-return hydraulic cylinder 11, and the piston rod of the spring-return hydraulic cylinder 11 extends under oil pressure. When the solenoid valve 10 malfunctions and cannot open normally, the manual emergency valve 9 is opened, and the oil in the accumulator 1 can also flow into the spring-return hydraulic cylinder 11 (this can be used to open the car lock or the side of the window glass, etc.). After the above process is completed, since the ball valve 12 is still in the open state, simply open the manual pressure relief valve 4. Under the action of the spring force, the oil in the spring reset hydraulic cylinder 11 will flow back. Since the oil pressure inside the accumulator 1 is higher than the oil pressure inside the spring reset hydraulic cylinder 11, the oil in the spring reset hydraulic cylinder 11 will flow back to the hydraulic oil tank 6, and the oil will be recycled and stored in the hydraulic oil tank 6.

[0023] When used again, the oil pressure in accumulator 1 needs to be raised to the initial level. At this time, since the oil is recycled and stored in hydraulic oil tank 6, the oil in hydraulic oil tank 6 can be drawn to filling port 7 by hydraulic pump and then input into accumulator 1 through filling port 7, so as to raise the internal oil pressure to the initial level. During this process, if the oil pressure in accumulator 1 is higher than the initial level, overflow valve 5 will open automatically to allow oil to fill into hydraulic oil tank 6, ensuring that the oil pressure in accumulator 1 is always at a safe level.

[0024] The manual pressure relief valve 4 can also be used to release the oil inside the accumulator 1 into the hydraulic oil tank 6 when the accumulator 1 needs internal maintenance.

[0025] It can be applied in the following scenarios, such as: Emergency 1: When a collision occurs during vehicle operation and the system cannot be opened normally, this system can energize the solenoid valve 10 based on the impact intensity signal (which can be shared with the airbag signal), open the solenoid valve 10, release the oil in the accumulator 1, and cause the hydraulic cylinder 11 to push out (which can be used to open the car lock or the side of the car window glass, etc.).

[0026] Emergency 2: If a collision occurs while the car is in motion and the door cannot be opened normally, and the battery power is cut off by mechanical force or the battery is damaged, pull the manual emergency valve 9 to release the oil in the accumulator 1, causing the hydraulic cylinder 11 to push out (this can be used to open the door lock or the side of the window glass, etc.).

[0027] Emergency 3: If the vehicle falls into water and cannot be opened normally, when the water level reaches the top of the vehicle, a signal can be sent through the water level sensor on the top of the vehicle to power the solenoid valve 10, release the oil in the accumulator 1, and cause the hydraulic cylinder 11 to push out (which can be used to open the car lock or the side of the car window glass, etc.).

[0028] Emergency 4: If the battery is damaged by water when the vehicle falls into the water, pull the manual emergency valve 9 to release the oil in the accumulator 1, causing the hydraulic cylinder 11 to push out (this can be used to open the car lock or the side of the window glass, etc.).

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hydraulic emergency ejection system, comprising an accumulator (1), characterized in that, Also includes: The ejector assembly is connected to the energy storage unit (1), which provides energy to the ejector assembly. The ejection assembly includes several spring-return hydraulic cylinders (11), all of which are fixed inside the vehicle body. A control valve is connected between the spring-return hydraulic cylinders (11) and the accumulator (1). The control valve is used to control the flow of oil in the accumulator (1). It also includes a hydraulic oil tank (6), and a safety system is provided between the hydraulic oil tank (6) and the accumulator (1). The oil inside the spring-reset hydraulic cylinder (11) flows back to the hydraulic oil tank (6) through the safety system.

2. The hydraulic emergency jacking system according to claim 1, characterized in that, The safety system includes a manual pressure relief valve (4) and an overflow valve (5). One end of the manual pressure relief valve (4) and the overflow valve (5) are connected to the accumulator (1), and the other end is connected to the hydraulic oil tank (6).

3. The hydraulic emergency jacking system according to claim 1, characterized in that, The control valve includes a manual emergency valve (9) and a solenoid valve (10).

4. The hydraulic emergency jacking system according to claim 1, characterized in that, The accumulator (1) is connected to a filling port (7) and a pressure sensor (8).

5. The hydraulic emergency jacking system according to claim 1, characterized in that, The spring reset hydraulic cylinders (11) are all fixed inside the vehicle body.

6. The hydraulic emergency jacking system according to claim 1, characterized in that, The accumulator (1) is provided with a pressure measuring port (3), and a pressure gauge (2) is installed at the pressure measuring port (3). The pressure gauge (2) is used to test the pressure inside the accumulator (1).

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