A hydraulic anti-shock vibration protection device and method for vehicle-mounted detection equipment

Abstract

The present invention relates to a hydraulic anti-shock and vibration protection device and method for vehicle-mounted detection equipment, belonging to the technical field of optoelectronic systems. The present invention utilizes a hydraulic mechanism and a control motor, which are installed within the support platform of the optoelectronic equipment. This device not only has the buffering properties to mitigate impact and vibration, but also provides a certain degree of strength. It also eliminates the need for additional installation space between the support equipment and the base, thereby achieving the purpose of shock and vibration reduction for the support equipment. It also enables rapid switching between operating states without affecting the detection orientation accuracy and adjustment range of the rotating optoelectronic equipment on the support platform.

Description

Technical Field

[0001] The present invention belongs to the technical field of optoelectronic systems, and in particular relates to a hydraulic anti-shock vibration protection device and method for vehicle-mounted detection equipment. Background Art

[0002] Managers need to install optoelectronic equipment on vehicles to detect and observe the environment, targets, animals, and other objects, as well as to collect and locate them. When a vehicle is moving, the optoelectronic detection equipment (such as television cameras, infrared thermal imagers, lidar, and reconnaissance radar) carried by the vehicle needs to be able to adapt to the vibration and impact caused by uneven ground to prevent damage. Especially in off-road environments, such shock and vibration are the main factors that cause damage to optoelectronic detection equipment. Therefore, the design of the on-board optoelectronic system needs to consider methods to isolate these shocks and vibrations, while also ensuring that they do not affect the detection system's rapid recovery to work, its directional accuracy, and its rotation adjustment range.

[0003] A typical anti-vibration device or method is a shock-absorbing mechanism or material, which is installed between the protective device and the base.

[0004] Application No. 200880101638.7 discloses a device for attenuating vibrations, which is mainly a multi-stage series-parallel vibration damper, including at least two parallel, coaxially arranged damping devices, and each having at least an input part and an output part, that is, a first damping device is connected in series with a second damping device having a torsional clearance, and coupled through an intermediate flange.

[0005] Application No. 201780075987.5 describes a vibration damping device comprising a vibration damping device body, an output shaft, and a dynamic vibration absorber. The vibration damping device body includes an input component and an output component, which are rotatably coupled to each other. The output shaft outputs torque from the vibration damping device body. The dynamic vibration absorber is mounted on the output shaft.

[0006] Application No. 201811636462.7 describes a compressor vibration reduction device, an RV air conditioner, and an RV. The vibration reduction device includes a vertical vibration reduction device and a horizontal vibration reduction device, which are used to reduce the vertical and horizontal vibrations of the compressor, respectively, to reduce the possibility of fracture of the compressor pipeline welding points.

[0007] Application No. 201910647932.8 discloses a composite crankshaft torsional vibration damper, which is used for vibration reduction of automobile crankshafts. It includes an outer hub, an inner hub, a spring-type vibration damping device and a rubber-type vibration damping device. The spring-type vibration damping device is arranged between the outer hub and the inner hub, and the rubber-type vibration damping device can be removably installed on the bottom surface of the spring-type vibration damping device. Through the spring-rubber composite vibration damping structure, the high-frequency and low-frequency vibrations of the crankshaft are suppressed, and the noise generated by the low-frequency vibration is absorbed.

[0008] Application No. 201810373244.2 provides a vibration reduction method and device for low-frequency elastic waves. The shape, size and material parameters of the vibration reduction device are designed according to the characteristics of the elastic waves, so that the vibration reduction device serves as a propagation space for the elastic waves, bends the propagation direction of the elastic waves, and changes the propagation direction of the elastic waves to reduce the elastic waves propagating to the components to be isolated, thereby achieving vibration reduction.

[0009] Application No. 201010137226.8 describes a precision motion platform with a vibration damping device, comprising a base, a micro-motion stage, a vibration damping device, a horizontal motor, and a vertical motor. Three or more vibration damping devices are placed in a polygonal configuration between the base and the micro-motion stage to support the micro-motion stage. Three or more horizontal and vertical motors are placed between the base and the micro-motion stage, evenly distributed along a circular path and offset from the vibration damping device to actively control the position or velocity of the micro-motion stage in the horizontal and vertical directions. The vibration damping device utilizes an air static pressure bearing.

[0010] Application No. 201710974085.7 proposes a multi-stage vibration reduction device for drones, comprising multiple vibration reduction units and a connecting plate structure, which are connected together to form a multi-stage vibration reduction device, the upper end of which is connected to the carrier, and the lower end is connected to the payload. Through multiple vibration reduction units (springs, rubber, foam, etc.), the vibration frequency can be adjusted more flexibly to achieve the purpose of staggering the frequency with the natural frequency of the carrier.

[0011] These devices use springs, rubber, foam or a combination of mechanisms to achieve shock absorption, do not involve hydraulic devices, and do not consider the problem of directional deviation of the load-bearing equipment. Summary of the Invention

[0012] (1) Technical issues to be resolved

[0013] The technical problem to be solved by the present invention is: to design a hydraulic anti-impact and vibration protection device and method for vehicle-mounted detection equipment, which can achieve the purpose of impact resistance and vibration reduction of the carrying equipment without adding additional installation space between the carrying equipment and the base, and can quickly switch the working state without affecting the detection orientation accuracy and adjustment range of the rotating photoelectric equipment of the carrying platform.

[0014] (2) Technical solution

[0015] In order to solve the above technical problems, the present invention provides a hydraulic anti-shock vibration protection device for vehicle-mounted detection equipment, which is integrated into the carrier platform 2 of the optoelectronic equipment and includes: a hydraulic unit 4, an oil storage tank 5, a breather valve 6, a pressure maintaining valve 7, a hydraulic jack 8, a pressure block 9, a connector 10, a high-pressure oil pipe 11, and a control unit 12;

[0016] The hydraulic unit 4 includes a motor 4-1, a hydraulic pump 4-2 and an oil circuit block 4-3. The motor 4-1 drives the hydraulic pump 4-2 to work, and the oil circuit block 4-3 cooperates with the hydraulic oil to move.

[0017] The hydraulic jack 8 includes a hydraulic jack top block 8-2, which is used to convert the movement of the hydraulic oil controlled by the hydraulic unit 4 into pressure to lift or retract the hydraulic jack top block 8-2;

[0018] The pressing block 9 is used to hold the carrying platform 2 in place to lock it in a protective state;

[0019] The high-pressure oil pipe 11 is used to transmit the hydraulic oil driven by the hydraulic unit 4 to the components in the pressure direction;

[0020] The control unit 12 includes a control box 12-1 and an angle sensor 12-2. The control box 12-1 is used to communicate with the carrying platform 2, send instructions to the carrying platform 2 or receive instructions from the carrying platform 2, and send control instructions to the motor 4-1 of the hydraulic unit 4. The angle sensor 12-2 is used to obtain the angle value of the rotation of the carrying platform 2;

[0021] The hydraulic unit 4, oil storage tank 5, breather valve 6, pressure maintaining valve 7, and hydraulic jack 8 are installed on the base plate at the lower part of the load-bearing platform 2, and the various components are connected by a high-pressure oil pipe 11 and a joint 10; the hydraulic unit 4 is connected to the oil storage tank 5 at one end and the pressure maintaining valve 7 at the other end through the high-pressure oil pipe 11, and the other end of the pressure maintaining valve 7 is connected to the hydraulic jack 8; the pressure block 9 is installed on the flange plate at the upper part of the load-bearing platform 2, and the hydraulic jack top block 8-2 corresponds to the groove on the flange plate. When the hydraulic jack top block 8-2 is supported, it cooperates with the pressure block 9 to press tightly, so that the base plate and the flange plate of the load-bearing platform 2 are pressed up and down.

[0022] Preferably, the oil circuit pressure provided by the hydraulic unit 4 matches the force of the hydraulic jack 8 to open, and hydraulic oil is delivered when power is applied, and the hydraulic oil is delivered from the oil storage tank 5 to the hydraulic jack 8 to control it to lift the hydraulic jack top block 8-2.

[0023] Preferably, the oil storage tank 5 and the breather valve 6 are used in combination. When the liquid level drops, air enters the oil storage tank 5 through the breather valve 6. When the liquid level rises, air is discharged from the oil storage tank 5 through the breather valve 6, so as to always keep the air pressure balance at the liquid level.

[0024] Preferably, during the driving of the vehicle, the pressure maintaining valve 7 is in the power-off state and the pressure is continuously maintained; after the supporting platform 2 is unlocked, the pressure maintaining valve 7 is in the conducting state, and the hydraulic oil can smoothly flow back to the oil storage tank 5, so that the supporting platform 2 is in a working state.

[0025] Preferably, the hydraulic jack 8 further includes a hydraulic jack tension spring 8-3. When the hydraulic oil is pressed in, the hydraulic jack top block 8-2 is lifted up. After the oil is released, the hydraulic jack tension spring 8-3 retracts to achieve reset.

[0026] Preferably, the control box 12-1 is specifically used to release the motor 4-1 of the hydraulic unit 4 when the power is off, send an instruction to rotate the carrying platform 2 to a protective state, and after the angle sensor 12-2 detects that the protective state is in place, control the hydraulic unit 4 to pump the hydraulic oil from the oil tank 5 into the hydraulic jack 8; upon receiving the unlocking instruction, control the pressure maintaining valve 7 to release the oil circuit; after the hydraulic jack top block 8-2 falls back into place, send a working instruction to the carrying platform 2; after receiving the rotation instruction of the carrying platform 2, release the motor 4-1 of the hydraulic unit 4; upon receiving the locking instruction, send an instruction to the carrying platform 2 to rotate it until the base plate and the flange are parallel to each other.

[0027] The present invention also provides a hydraulic anti-vibration protection method for vehicle-mounted detection equipment implemented by the device, comprising the following steps:

[0028] Step 1: When the power is off, the protection device 3 is in a locked state, that is, the control box 12-1 of the control unit 12 releases the motor 4-1 of the hydraulic unit 4 and sends a command to rotate the carrying platform 2 to the protection state. At this time, the base plate is parallel to the flange. After the angle sensor 12-2 of the control unit 12 detects that the protection state is in place, the control box 12-1 controls the hydraulic unit 4 to pump hydraulic oil from the oil storage tank 5 into the hydraulic jack 8, so that the hydraulic jack top block 8-2 is propped up and pressed against the pressure block 9. At the same time, the pressure holding valve 7 is locked, and the oil circuit is locked to maintain the working pressure. At this time, the hydraulic unit 4 provides a buffer for the vibration and impact of the vehicle when it is moving;

[0029] Step 2: The control unit 12 receives the unlocking command, and the control box 12-1 first controls the pressure-maintaining valve 7 to release the oil circuit. The hydraulic oil flows back to the oil storage tank 5 from the hydraulic jack 8, and the hydraulic jack top block 8-2 falls back into place. The control box 12-1 sends a working command to the carrying platform 2, allowing it to rotate. The control box 12-1 receives the rotation command of the carrying platform 2, releases the motor 4-1 of the hydraulic unit 4, and allows the carrying platform 2 to rotate to the working angle.

[0030] Step 3, when the control unit 12 receives the locking instruction, the control box 12-1 first sends an instruction to the supporting platform 2 to rotate it until the base plate and the flange are parallel to each other. After the angle sensor 12-2 of the control unit 12 detects that the protection state is in place, the control box 12-1 controls the hydraulic unit 4 to pump the hydraulic oil from the oil tank 5 into the hydraulic jack 8, so that the hydraulic jack top block 8-2 is propped up again and pressed against the pressure block 9. At the same time, the pressure maintaining valve 7 is locked, and the locking oil circuit maintains the working pressure. At this time, the hydraulic unit 4 provides a buffer for the vibration and impact of the vehicle when it is moving.

[0031] (3) Beneficial effects

[0032] The present invention provides a hydraulic anti-impact and vibration protection device and method for vehicle-mounted detection equipment, which has the following beneficial effects: first, a hydraulic mechanism is adopted, which is non-rigidly fixed and has a certain strength, and has a buffering effect on the impact and vibration when the vehicle is moving, and plays a protective role against impact and vibration; second, an angle sensor is used to accurately obtain the state of the carrying platform, and the control unit and the hydraulic unit are linked to the motor, and the control accuracy is high; third, the various components of the protection device are integrated into the interior of the carrying platform, which is conducive to the coordinated work with the carrying platform without increasing additional space, and is conducive to the compact integration of optoelectronic equipment on the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is the installation location of the hydraulic anti-shock vibration protection device for the vehicle-mounted detection equipment of the present invention;

[0034] Figure 2 Schematic diagram of the composition of the hydraulic anti-shock vibration protection device for vehicle-mounted detection equipment of the present invention;

[0035] Figure 3 It is a schematic diagram of the composition and position of the control unit of the hydraulic anti-shock vibration protection device for vehicle-mounted detection equipment of the present invention;

[0036] Figure 4 It is a schematic diagram of the hydraulic unit composition of the present invention;

[0037] Figure 5 It is a schematic diagram of the composition of the hydraulic jack in the present invention;

[0038] Figure 6 It is a working flow diagram of the protection device of the present invention.

[0039] in:

[0040] 1: Vehicle-mounted photoelectric detection equipment; 2: Carrying platform; 3: Protective device;

[0041] 4: Hydraulic unit; 5: Oil storage tank; 6: Breathing valve; 7: Pressure maintaining valve; 8: Hydraulic jack; 9: Pressure block; 10: Connector; 11: High-pressure oil pipe; 12: Control unit;

[0042] 4-1: Motor; 4-2: Hydraulic pump; 4-3: Oil circuit block;

[0043] 8-1: Hydraulic jack body; 8-2: Hydraulic jack top block; 8-3: Hydraulic jack tension spring;

[0044] 12-1: Control box; 12-2: Angle sensor. DETAILED DESCRIPTION

[0045] In order to make the purpose, content, and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below with reference to the accompanying drawings and examples.

[0046] The present invention provides a hydraulic anti-shock and vibration protection device and method for vehicle-mounted detection equipment. The hydraulic anti-shock and vibration protection device for vehicle-mounted detection equipment (hereinafter referred to as: protection device) is composed of a hydraulic unit, an oil storage tank, a breather valve, a pressure maintaining valve, a hydraulic jack, a pressure block, a joint, a high-pressure oil pipe (containing hydraulic oil), a control unit, etc., and is integrated into the carrying platform of the photoelectric equipment without occupying additional space between the carrying platform and the photoelectric equipment.

[0047] (1) Protective device

[0048] refer to Figures 1 to 5 , the hydraulic anti-shock vibration protection device 3 for vehicle-mounted detection equipment used for buffering protection of vehicle-mounted photoelectric detection equipment 1, integrated in the carrying platform 2, includes a hydraulic unit 4, an oil storage tank 5, a breather valve 6, a pressure maintaining valve 7, a hydraulic jack 8, a pressure block 9, a joint 10, a high-pressure oil pipe containing hydraulic oil 11, a control unit 12 and other parts; the hydraulic unit 4 includes a motor 4-1, a hydraulic pump 4-2 and an oil circuit block 4-3, wherein the hydraulic pump 4-2 is driven by the motor 4-1 to work, and the oil circuit block 4-3 is used to move the hydraulic oil; the oil storage tank 5 is used to store hydraulic oil, the breather valve 6 releases air when pressing the oil, and the pressure maintaining valve 7 is used to ensure pressure stability; the hydraulic jack 8 contains hydraulic jacks The jack body 8-1, the hydraulic jack top block 8-2, and the hydraulic jack tension spring 8-3 are used to convert the movement of the hydraulic oil controlled by the hydraulic unit 4 into pressure, thereby raising or lowering the hydraulic jack top block 8-2; the pressure block 9 is used to support the load-bearing platform 2 to lock it in a protective state; the connector 10 is used to connect the various hydraulic components; the high-pressure oil pipe 11 is used to transmit the hydraulic oil driven by the hydraulic unit 4 to the components in the pressure direction; the control unit 12 includes a control box 12-1 and an angle sensor 12-2, which is used to communicate with the load-bearing platform 2, send or receive instructions, obtain the angle value of the rotation of the load-bearing platform 2 through the angle sensor 12-2, and send control instructions to the motor 4-1 of the hydraulic unit 4;

[0049] The hydraulic unit 4, oil storage tank 5, air valve 6, pressure maintaining valve 7, and hydraulic jack 8 are installed on the base plate at the lower part of the load-bearing platform 2, and the various components are connected by a high-pressure oil pipe 11 and a joint 10; the hydraulic unit 4 is connected to the oil storage tank 5 at one end and the pressure maintaining valve 7 at the other end through the high-pressure oil pipe 11, and the other end of the pressure maintaining valve 7 is connected to the hydraulic jack 8; the pressure block 9 is installed on the flange plate at the upper part of the load-bearing platform 2, and the hydraulic jack top block 8-2 corresponds to the groove on the flange plate. When the hydraulic jack top block 8-2 is supported, it cooperates with the pressure block 9 to press tightly, so that the base plate and the flange plate of the load-bearing platform 2 are pressed up and down.

[0050] Example:

[0051] The hydraulic unit 4 includes a motor 4-1 (12V / 5W), a hydraulic pump 4-2 (12V / 0.8MP), and an oil circuit block 4-3 (6-channel 5W gear integration), which realizes the power supply of the oil circuit; the oil circuit pressure provided by the hydraulic unit 4 matches the supporting force of the hydraulic jack 8, and when powered, hydraulic oil is delivered from the oil storage tank 5 to the hydraulic jack 8, which controls it to lift the hydraulic jack block 8-2;

[0052] The oil storage tank 5 and the breather valve 6 are made of stainless steel and are used in a two-way breathable combination. When the liquid level drops, air enters the oil storage tank 5 through the breather valve 6. When the liquid level rises, air is discharged from the oil storage tank 5 through the breather valve 6, so as to always keep the air pressure balance of the liquid level. The breather valve 6 has a two-way breathable function and is oil-tight.

[0053] The pressure-maintaining valve 7 (24V / 40MP): When the vehicle is moving, the pressure-maintaining valve 7 is in a power-off state, continuously maintaining pressure and being able to withstand the impact and vibration caused by the vehicle's movement; after the load-bearing platform 2 is unlocked, the pressure-maintaining valve 7 is in a conducting state, and the hydraulic oil can smoothly flow back to the oil storage tank 5, so that the load-bearing platform 2 is in a working state;

[0054] The hydraulic jack 8 (5T ultra-thin tension spring jack) is small in size, light in weight, short in stroke, can withstand 5 tons of pressure, and has a single-acting design. When the hydraulic oil is pressed in, the hydraulic jack top block 8-2 is lifted up, and after the oil is released, the hydraulic jack tension spring 8-3 retracts to achieve reset.

[0055] The connector 10 (M16 to G1 / 8 and G1 / 8 connector) is used to connect the high-pressure oil pipe 11 with the hydraulic unit 4, the oil storage tank 5, the pressure-maintaining valve 7, and the hydraulic jack 8. Different types of connectors are selected for different interfaces while ensuring liquid sealing.

[0056] The high pressure oil pipe 11 ( 8 / 63MP flexible high-pressure oil pipe), which is characterized by a certain degree of flexibility and bending resistance, and can withstand liquid pressure greater than 50MPa;

[0057] The control unit 12 includes a control box 12-1 (DSP integrated control) and an angle sensor 12-2 (16-bit photoelectric absolute encoder). The control box 12-1 is fed with real-time pitch angle information with a resolution of 0.001°. For a load of 30kg, it can withstand shocks greater than 40G and vibrations with a frequency range of 5Hz to 500Hz and a peak acceleration of 11ms.

[0058] The combination of the oil storage tank 5 and the breathable valve 6 can also be a soft oil bag made of flexible material;

[0059] The combination of the motor 4-1, the hydraulic pump 4-2, and the oil circuit block 4-3 may also be a hydraulic oil circuit assembly;

[0060] The hydraulic jack 8 may also be a screw jack;

[0061] The control box 12-1 may also be controlled by a single chip microcomputer;

[0062] The angle sensor 12 - 2 may also be an electromagnetic encoder, an inclination sensor, or an angle resolver.

[0063] (2) Control method

[0064] refer to Figure 6 , the protection method comprises the following steps:

[0065] Step 1: When the power is off, the protection device 3 is in a locked state, that is, the control box 12-1 of the control unit 12 releases the motor 4-1 of the hydraulic unit 4, and sends a command to rotate the carrying platform 2 to the protection state so that the base plate is parallel to the flange. After the angle sensor 12-2 of the control unit 12 detects that the protection state is in place, the control box 12-1 controls the hydraulic unit 4 to pump hydraulic oil from the oil storage tank 5 into the hydraulic jack 8, so that the hydraulic jack top block 8-2 is propped up and pressed against the pressure block 9. At the same time, the pressure holding valve 7 is locked, and the oil circuit is locked to maintain the working pressure. At this time, the hydraulic unit 4 cushions the vibration and impact of the vehicle when it is moving based on the hydraulic principle;

[0066] Step 2: The control unit 12 receives the unlocking command, and the control box 12-1 first controls the pressure-maintaining valve 7 to release the oil circuit. The hydraulic oil flows back to the oil storage tank 5 from the hydraulic jack 8, and the hydraulic jack top block 8-2 falls back into place. The control box 12-1 sends a working command to the carrying platform 2, allowing it to rotate. The control box 12-1 receives the rotation command of the carrying platform 2, releases the motor 4-1 of the hydraulic unit 4, and allows the carrying platform 2 to rotate to the working angle.

[0067] Step 3, when the control unit 12 receives the locking instruction, the control box 12-1 first sends an instruction to the supporting platform 2 to rotate it until the base plate and the flange are parallel to each other. After the angle sensor 12-2 of the control unit 12 detects that the protection state is in place, the control box 12-1 controls the hydraulic unit 4 to pump the hydraulic oil from the oil tank 5 into the hydraulic jack 8, so that the hydraulic jack top block 8-2 is propped up again and pressed against the pressure block 9. At the same time, the pressure maintaining valve 7 is locked, and the locking oil circuit maintains the working pressure. At this time, the hydraulic unit 4 cushions the vibration and impact of the vehicle when it is moving based on the hydraulic principle.

[0068] It can be seen that the present invention provides a hydraulic anti-impact and vibration protection device and method for vehicle-mounted detection equipment, which adopts a hydraulic mechanism and a control motor and is installed in the supporting platform of the photoelectric equipment, so that the device has both a buffering characteristic of reducing impact and vibration and a certain strength. It does not require additional installation space between the supporting equipment and the base, thereby achieving the purpose of impact resistance and vibration reduction of the supporting equipment, and can quickly switch working states without affecting the detection orientation accuracy and adjustment range of the rotating photoelectric equipment on the supporting platform.

[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulic anti-shock vibration protection device for vehicle-mounted detection equipment, characterized in that: The device is integrated into a carrying platform (2) of a photoelectric device and comprises: a hydraulic unit (4), an oil storage tank (5), a breather valve (6), a pressure-maintaining valve (7), a hydraulic jack (8), a pressure block (9), a connector (10), a high-pressure oil pipe (11), and a control unit (12); The hydraulic unit (4) comprises a motor (4-1), a hydraulic pump (4-2) and an oil circuit block (4-3), wherein the motor (4-1) drives the hydraulic pump (4-2) to work, and cooperates with the oil circuit block (4-3) to move the hydraulic oil; The hydraulic jack (8) comprises a hydraulic jack top block (8-2) for converting the movement of the hydraulic oil controlled by the hydraulic unit (4) into pressure to raise or retract the hydraulic jack top block (8-2); The pressing block (9) is used to hold the bearing platform (2) in place to lock it in a protective state; The high-pressure oil pipe (11) is used to transmit the hydraulic oil driven by the hydraulic unit (4) to components in the pressure direction; The control unit (12) comprises a control box (12-1) and an angle sensor (12-2); the control box (12-1) is used to communicate with the carrying platform (2), send instructions to the carrying platform (2) or receive instructions from the carrying platform (2), and send control instructions to the motor (4-1) of the hydraulic unit (4); and the angle sensor (12-2) is used to obtain the angle value at which the carrying platform (2) rotates. The hydraulic unit (4), oil storage tank (5), vent valve (6), pressure maintaining valve (7), and hydraulic jack (8) are installed on the base plate at the lower part of the bearing platform (2), and the various components are connected through the high-pressure oil pipe (11) and the joint (10); the hydraulic unit (4) is connected to the oil storage tank (5) at one end and the pressure maintaining valve (7) at the other end through the high-pressure oil pipe (11), and the other end of the pressure maintaining valve (7) is connected to the hydraulic jack (8); the pressure block (9) is installed on the flange plate at the upper part of the bearing platform (2), and the hydraulic jack top block (8-2) corresponds to the groove on the flange plate. When the hydraulic jack top block (8-2) is supported, it cooperates with the pressure block (9) to press tightly, thereby realizing the upper and lower pressing of the base plate and the flange plate of the bearing platform (2).

2. The device according to claim 1, wherein The oil circuit pressure provided by the hydraulic unit (4) matches the force exerted by the hydraulic jack (8) to open, and when powered on, hydraulic oil is delivered from the oil storage tank (5) to the hydraulic jack (8), controlling it to lift the hydraulic jack top block (8-2).

3. The device according to claim 1, wherein The oil storage tank (5) and the breathable valve (6) are used in combination. When the liquid level drops, air enters the oil storage tank (5) through the breathable valve (6). When the liquid level rises, air is discharged from the oil storage tank (5) through the breathable valve (6), thereby always maintaining the balance of air pressure on the liquid level.

4. The device according to claim 1, wherein During the driving process of the vehicle, the pressure-maintaining valve (7) is in a power-off state, and the pressure is continuously maintained; after the supporting platform (2) is unlocked, the pressure-maintaining valve (7) is in a conducting state, and the hydraulic oil can smoothly flow back to the oil storage tank (5), so that the supporting platform (2) is in a working state.

5. The device according to claim 1, wherein The hydraulic jack (8) also includes a hydraulic jack tension spring (8-3). When hydraulic oil is pressed in, the hydraulic jack top block (8-2) is lifted up, and after the oil is released, the hydraulic jack tension spring (8-3) retracts to achieve reset.

6. The device according to claim 1, wherein The control box (12-1) is specifically used for releasing the motor (4-1) of the hydraulic unit (4) when power is off, sending a command to rotate the bearing platform (2) to a protection state, and controlling the hydraulic unit (4) to pump hydraulic oil from the oil storage tank (5) into the hydraulic jack (8) after the angle sensor (12-2) detects that the protection state is in place; upon receiving an unlocking command, controlling the pressure-maintaining valve (7) to release the oil circuit; after the hydraulic jack top block (8-2) falls back into place, sending a working command to the bearing platform (2); upon receiving a rotation command of the bearing platform (2), releasing the motor (4-1) of the hydraulic unit (4); and upon receiving a locking command, sending a command to the bearing platform (2) to rotate it until the base plate and the flange are parallel to each other.

7. The device according to claim 1, wherein The oil storage tank (5) is a soft oil bag made of flexible material.

8. The device according to claim 1, wherein The hydraulic jack (8) is a tension spring jack or a screw jack.

9. The device according to claim 1, wherein The angle sensor (12-2) is one of a photoelectric absolute value encoder, an electromagnetic encoder, an inclination sensor, and an angle resolver.

10. A hydraulic anti-shock vibration protection method for vehicle-mounted detection equipment implemented by the device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: When the power is off, the protection device (3) is in a locked state, that is, the control box (12-1) of the control unit (12) releases the motor (4-1) of the hydraulic unit (4), and sends a command to rotate the bearing platform (2) to the protection state. At this time, the base plate is parallel to the flange. After the angle sensor (12-2) of the control unit (12) detects that the protection state is in place, the control box (12-1) controls the hydraulic unit (4) to pump hydraulic oil from the oil storage tank (5) into the hydraulic jack (8), so that the hydraulic jack top block (8-2) is supported and pressed against the pressure block (9). At the same time, the pressure maintaining valve (7) is locked, and the oil circuit is locked to maintain the working pressure. At this time, the hydraulic unit (4) provides a buffer for the vibration and impact of the vehicle when it is moving. Step 2: The control unit (12) receives the unlocking instruction, and the control box (12-1) first controls the pressure-maintaining valve (7) to release the oil circuit, so that the hydraulic oil flows back to the oil storage tank (5) from the hydraulic jack (8), and the hydraulic jack top block (8-2) falls back into place. The control box (12-1) sends a working instruction to the carrying platform (2), allowing it to rotate. The control box (12-1) receives the rotation instruction of the carrying platform (2), releases the motor (4-1) of the hydraulic unit (4), and allows the carrying platform (2) to rotate to the working angle. In step 3, the control unit (12) receives the locking instruction, and the control box (12-1) first sends an instruction to the bearing platform (2) to rotate it until the base plate and the flange are parallel to each other. After the angle sensor (12-2) of the control unit (12) detects that the protection state is in place, the control box (12-1) controls the hydraulic unit (4) to pump hydraulic oil from the oil storage tank (5) into the hydraulic jack (8), so that the hydraulic jack top block (8-2) is propped up again and pressed against the pressure block (9). At the same time, the pressure maintaining valve (7) is locked, and the locking oil circuit maintains the working pressure. At this time, the hydraulic unit (4) provides a buffer for the vibration and impact of the vehicle when it is moving.

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