Spring hydraulic internal support type parking anti-slip device and anti-slip method

Abstract

The invention discloses a spring hydraulic internal supporting type parking anti-running device which comprises an executing mechanism, the executing mechanism is connected with an integrated block assembly through an executing pipe, the integrated block assembly is connected with an oil pump assembly through a first connecting pipe, the integrated block assembly is connected with an oil tank, the oil tank is connected with the oil pump assembly, and the oil tank is further connected with an energy accumulator. The energy accumulator is connected with the integrated block assembly through a second connecting pipe; the invention further discloses an anti-slip method of the spring hydraulic inner supporting type parking anti-slip device. During braking, hydraulic oil in the oil cylinder returns to the oil tank through the overflow valve, adjustment of the braking capacity of the parking anti-slip device is facilitated, the applicability of equipment is expanded, anti-slip of a vehicle is reliably implemented, and the safety of operation of a hump shunting yard is improved. When a vehicle is relieved, the spring and the working spring are installed in the oil cylinder, the oil cylinder is of a single-action type, hydraulic oil in the oil cylinder returns to an oil tank through the reversing valve during relieving, and the oil cylinder is novel in design, compact and simple in structure and safe and reliable in work.

Description

Technical Field

[0001] The invention belongs to the technical field of parking anti-slip equipment, and in particular relates to a spring hydraulic inner-supported parking anti-slip device, and also relates to an anti-slip method of the anti-slip device. Background Art

[0002] At present, the rear of the domestic railway hump yard is equipped with parking anti-slip equipment to prevent vehicles from slipping away. According to the power generation method of the parking anti-slip equipment, it can be divided into electric, mechanical, hydraulic and pneumatic parking anti-slip devices. The mechanical actuators of the parking anti-slip devices generally adopt an internal support structure. Each type of parking anti-slip device has its own characteristics and advantages. From the perspective of application effect, there are some shortcomings. Among them, the hydraulic spring type and electric spring type parking anti-slip device actuators use springs to brake and release the vehicle. The braking force on the vehicle cannot be adjusted during braking. When the slope of the railway line, the equipment use environment, etc. change, it cannot meet the anti-slip needs of the vehicle, resulting in unsafe accidents in hump yard operations; the braking and release of the fully hydraulic parking anti-slip device rely on the movement of the hydraulic cylinder. The cylinder is double-acting, the hydraulic control system and the cylinder structure are complex, the working reliability is greatly reduced, the installation and maintenance are inconvenient, and the later maintenance cost is high. Summary of the invention

[0003] The purpose of the present invention is to provide a spring hydraulic inner support type parking anti-slip device, which solves the problem in the prior art that the need for anti-slipping of vehicles cannot be met when the environment changes.

[0004] Another object of the present invention is to provide a method for preventing a spring hydraulic inner-supported parking anti-slip device.

[0005] The technical solution adopted by the present invention is a spring hydraulic internal support parking anti-skid device, including an actuator, the actuator is connected to an integrated block assembly through an actuator tube, the integrated block assembly is connected to an oil pump assembly through a first connecting tube, the integrated block assembly is connected to an oil tank, the oil tank is connected to the oil pump assembly, the oil tank is also connected to an accumulator, and the accumulator is connected to the integrated block assembly through a second connecting tube.

[0006] The present invention is also characterized in that: The top of the oil tank is connected with a protective cover, and the integrated block assembly and the accumulator are arranged in the protective cover.

[0007] The actuator comprises an oil cylinder, the output end of the oil cylinder is connected with a brake rail, a push rod in the oil cylinder is connected with a spring, and the end of the oil cylinder away from the brake rail is connected with an actuator pipe.

[0008] The oil cylinder is connected with a travel switch, and the travel switch is arranged close to the brake rail.

[0009] The oil pump assembly includes an oil pump, the oil pump is connected to a filter via a third connecting pipe, the oil pump is connected to an electric motor, the oil pump and the filter are both arranged in an oil tank, and the oil pump is connected to a fourth connecting pipe and a first connecting pipe.

[0010] The integrated block assembly includes an integrated block, the integrated block is connected to the oil tank, the integrated block is arranged in the protective cover, the integrated block is respectively connected to the actuator pipe, the second connecting pipe and the first connecting pipe, the integrated block is connected to the system check valve, the system check valve is arranged between the oil circuit of the accumulator and the oil pump, the integrated block is also connected to the reversing valve, the working check valve and the working stop valve, the reversing valve, the working check valve and the working stop valve are arranged on the oil inlet circuit of the oil cylinder, and the reversing valve is arranged close to the oil cylinder.

[0011] The integrated block is connected with a system overflow valve and a system stop valve, the system overflow valve, the system stop valve and the working stop valve are arranged in the same oil circuit, the oil tank is connected with an air filter, and the air filter is arranged on the top of the oil tank.

[0012] The integrated block is connected with a pressure controller and a system pressure measuring joint.

[0013] The integrated block is connected with a working overflow valve and a working pressure measuring joint, and the working overflow valve and the working pressure measuring joint are arranged on a branch oil path between the oil cylinder and the reversing valve.

[0014] Another technical solution adopted by the present invention is a method for preventing a hydraulic inner-support parking anti-slip device from slipping, which is specifically implemented according to the following steps: Step 1: When the coil CT of the reversing valve is powered off, the pressure oil enters the oil cylinder through the reversing valve, and the oil cylinder overcomes the spring resistance to put the brake rail in the braking position, and the spring in the oil cylinder is compressed; Step 2: When a vehicle enters the equipment, the vehicle compresses the oil cylinder through the brake rail, and the hydraulic oil in the oil cylinder returns to the oil tank through the working overflow valve to prevent the vehicle from slipping; Step 3: When the coil CT of the reversing valve is energized, the hydraulic oil in the oil cylinder is connected to the oil tank through the reversing valve. The spring in the oil cylinder overcomes the resistance and puts the brake rail in the release position. The spring in the oil cylinder returns to its initial state, achieving the release of the vehicle and ensuring the safe passage of the vehicle. The beneficial effects of the present invention are: The spring hydraulic internal support parking anti-skid device of the present invention, when braking, the hydraulic oil in the oil cylinder returns to the oil tank through the overflow valve, which is convenient for adjusting the braking capacity of the parking anti-skid device, expanding the applicability of the equipment, reliably preventing the vehicle from skidding, and improving the safety of hump shunting yard operations. When relieving the vehicle, it relies on the spring, and the working spring is installed inside the oil cylinder. The oil cylinder adopts a single-acting type. When relieving, the hydraulic oil in the oil cylinder returns to the oil tank through the reversing valve. The oil cylinder has a novel design, a compact and simple structure, and safe and reliable operation. The hydraulic system adopts a modular design, and the hydraulic components are reasonably arranged and centrally installed in the protective cover, which is easy to maintain, has a low failure rate, is easy to install, and has low manufacturing and subsequent maintenance costs. The equipment has good technical performance and social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a spring hydraulic inner-support parking anti-slip device of the present invention; Figure 2 It is a partial structural diagram of the spring hydraulic inner support parking anti-slip device of the present invention; Figure 3 The utility model is a structural principle diagram of the spring hydraulic inner support type parking anti-slip device of the present invention.

[0016] In the figure, 1. oil tank, 2. filter, 3. motor, 4. oil pump, 5. system one-way valve, 6. system overflow valve, 7. system stop valve, 8. accumulator, 9. pressure controller, 10. system pressure measuring joint, 11. reversing valve, 12. working one-way valve, 13. working stop valve, 14. working overflow valve, 15. working pressure measuring joint, 16. air filter, 17. hydraulic system, 18. cylinder brake chamber, 19. spring, 20. brake rail, 21. oil cylinder, 22. actuator, 23. integrated block, 24. first connecting pipe, 25. second connecting pipe, 26. third connecting pipe, 27. fourth connecting pipe, 28. protective cover, 29. actuator pipe, 30. oil pump assembly, 31. integrated block assembly. DETAILED DESCRIPTION

[0017] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] The present invention provides a spring hydraulic inner support type parking anti-slip device, such as Figure 1-2As shown, it includes an actuator 22, the actuator 22 is connected to an integrated block assembly 31 through an actuator tube 29, the integrated block assembly 31 is connected to an oil pump assembly 30 through a first connecting tube 24, the integrated block assembly 31 is connected to an oil tank 1, the oil tank 1 is connected to the oil pump assembly 30, the oil tank 1 is also connected to an accumulator 8, and the accumulator 8 is connected to the integrated block assembly 31 through a second connecting tube 25. The actuator 22 is connected to the hydraulic system 17, and the integrated block assembly 31, the oil pump assembly 30, the oil tank 1, and the accumulator 8 all belong to the hydraulic system 17. The oil pump assembly 30 is used as the power source of the entire device. The pressure oil is pumped into the oil pump assembly 30, and the actuator 22 is realized through the integrated block assembly 31. The actuator 22 brakes the vehicle. The accumulator 8 is used as an energy storage component of the device to store the hydraulic oil in the hydraulic system 17. When the hydraulic system 17 is working or the power supply fails and the motor 3 cannot work normally, the accumulator 8 supplies oil to the entire system or relieves the vehicle.

[0019] Example 1 The spring hydraulic internal support parking anti-skid device includes an actuator 22, which is connected to an integrated block assembly 31 through an actuator tube 29, and the integrated block assembly 31 is connected to an oil pump assembly 30 through a first connecting tube 24. The integrated block assembly 31 is connected to an oil tank 1, and the oil tank 1 is connected to the oil pump assembly 30. The oil tank 1 is also connected to an accumulator 8, and the accumulator 8 is connected to the integrated block assembly 31 through a second connecting tube 25.

[0020] A protective cover 28 is connected to the top of the oil tank 1, and the integrated block assembly 31 and the accumulator 8 are arranged in the protective cover 28. The protective cover 28 protects the entire device from damage by foreign matter.

[0021] Example 2 The spring hydraulic internal support parking anti-skid device includes an actuator 22, which is connected to an integrated block assembly 31 through an actuator tube 29, and the integrated block assembly 31 is connected to an oil pump assembly 30 through a first connecting tube 24. The integrated block assembly 31 is connected to an oil tank 1, and the oil tank 1 is connected to the oil pump assembly 30. The oil tank 1 is also connected to an accumulator 8, and the accumulator 8 is connected to the integrated block assembly 31 through a second connecting tube 25.

[0022] A protective cover 28 is connected to the top of the oil tank 1 , and the integrated block assembly 31 and the accumulator 8 are both arranged inside the protective cover 28 .

[0023] like Figure 3As shown, the actuator 22 includes a cylinder 21, the output end of the cylinder 21 is connected to the brake rail 20, the push rod in the cylinder 21 is connected to the spring 19, and the end of the cylinder 21 away from the brake rail 20 is connected to the actuator tube 29. The spring 19 and the inner bottom surface of the cylinder 21 form a cylinder brake chamber 18, and the hydraulic oil passes through the oil path of the hydraulic system 17 and the actuator tube 29 into the cylinder brake chamber 18 of the cylinder 21, the spring 19 is compressed, and the cylinder 21 overcomes the resistance of the spring 19 to put the brake rail 20 in the braking position.

[0024] The oil cylinder 21 is connected with a travel switch, and the travel switch is arranged near the brake rail 20. The travel switch XK is used to detect the position of the brake rail 20.

[0025] Example 3 The spring hydraulic internal support parking anti-skid device includes an actuator 22, which is connected to an integrated block assembly 31 through an actuator tube 29, and the integrated block assembly 31 is connected to an oil pump assembly 30 through a first connecting tube 24. The integrated block assembly 31 is connected to an oil tank 1, and the oil tank 1 is connected to the oil pump assembly 30. The oil tank 1 is also connected to an accumulator 8, and the accumulator 8 is connected to the integrated block assembly 31 through a second connecting tube 25.

[0026] A protective cover 28 is connected to the top of the oil tank 1 , and the integrated block assembly 31 and the accumulator 8 are both arranged inside the protective cover 28 .

[0027] The actuator 22 includes an oil cylinder 21 , an output end of the oil cylinder 21 is connected to a brake rail 20 , a push rod in the oil cylinder 21 is connected to a spring 19 , and an end of the oil cylinder 21 away from the brake rail 20 is connected to an actuator tube 29 .

[0028] The oil cylinder 21 is connected with a travel switch, and the travel switch is arranged close to the brake rail 20 .

[0029] The oil pump assembly 30 includes an oil pump 4, which is connected to the filter 2 through the third connecting pipe 26, and is connected to the motor 3. The oil pump 4 and the filter 2 are both arranged in the oil tank 1, and the oil pump 4 is connected to the fourth connecting pipe 27 and the first connecting pipe 24. The motor 3 drives the oil pump 4 to pump the hydraulic oil in the oil tank 1, and the hydraulic oil enters the accumulator 8 while entering the integrated block assembly 31, and is stored in the accumulator 8.

[0030] Example 4 The spring hydraulic internal support parking anti-skid device includes an actuator 22, which is connected to an integrated block assembly 31 through an actuator tube 29, and the integrated block assembly 31 is connected to an oil pump assembly 30 through a first connecting tube 24. The integrated block assembly 31 is connected to an oil tank 1, and the oil tank 1 is connected to the oil pump assembly 30. The oil tank 1 is also connected to an accumulator 8, and the accumulator 8 is connected to the integrated block assembly 31 through a second connecting tube 25.

[0031] A protective cover 28 is connected to the top of the oil tank 1 , and the integrated block assembly 31 and the accumulator 8 are both arranged inside the protective cover 28 .

[0032] The actuator 22 includes an oil cylinder 21 , an output end of the oil cylinder 21 is connected to a brake rail 20 , a push rod in the oil cylinder 21 is connected to a spring 19 , and an end of the oil cylinder 21 away from the brake rail 20 is connected to an actuator tube 29 .

[0033] The oil cylinder 21 is connected with a travel switch, and the travel switch is arranged close to the brake rail 20 .

[0034] The oil pump assembly 30 includes an oil pump 4 , which is connected to the filter 2 via a third connecting pipe 26 , and is connected to the motor 3 . The oil pump 4 and the filter 2 are both arranged in the oil tank 1 , and the oil pump 4 is connected to the fourth connecting pipe 27 and the first connecting pipe 24 .

[0035] The integrated block assembly 31 includes an integrated block 23, which is connected to the oil tank 1 and is arranged in a protective cover 28. The integrated block 23 is respectively connected to the actuator 29, the second connecting pipe 25 and the first connecting pipe 24, and the second connecting pipe 25 is connected to the fourth connecting pipe 27. The integrated block 23 is connected to a system check valve 5, which is arranged between the oil circuit of the accumulator 8 and the oil pump 4. The integrated block 23 is also connected to a reversing valve 11, a working check valve 12 and a working stop valve 13. The reversing valve 11, the working check valve 12 and the working stop valve 13 are arranged on the oil circuit of the oil cylinder 21, and the reversing valve 11 is arranged near the oil cylinder 21. The arrangement of the system check valve 5 ensures that the hydraulic oil from the oil tank 1 can only move in one direction after being pumped in by the oil pump 4. After being stored in the accumulator 8 for standby use, the remaining hydraulic oil enters the oil cylinder 21 in turn through the working stop valve 13, the working check valve 12 and the reversing valve 11.

[0036] Example 5 The spring hydraulic internal support parking anti-skid device includes an actuator 22, which is connected to an integrated block assembly 31 through an actuator tube 29, and the integrated block assembly 31 is connected to an oil pump assembly 30 through a first connecting tube 24. The integrated block assembly 31 is connected to an oil tank 1, and the oil tank 1 is connected to the oil pump assembly 30. The oil tank 1 is also connected to an accumulator 8, and the accumulator 8 is connected to the integrated block assembly 31 through a second connecting tube 25.

[0037] A protective cover 28 is connected to the top of the oil tank 1 , and the integrated block assembly 31 and the accumulator 8 are both arranged inside the protective cover 28 .

[0038] The actuator 22 includes an oil cylinder 21 , an output end of the oil cylinder 21 is connected to a brake rail 20 , a push rod in the oil cylinder 21 is connected to a spring 19 , and an end of the oil cylinder 21 away from the brake rail 20 is connected to an actuator tube 29 .

[0039] The oil cylinder 21 is connected with a travel switch, and the travel switch is arranged close to the brake rail 20 .

[0040] The oil pump assembly 30 includes an oil pump 4 , which is connected to the filter 2 via a third connecting pipe 26 , and is connected to the motor 3 . The oil pump 4 and the filter 2 are both arranged in the oil tank 1 , and the oil pump 4 is connected to the fourth connecting pipe 27 and the first connecting pipe 24 .

[0041] The integrated block assembly 31 includes an integrated block 23, which is connected to the oil tank 1 and is arranged in a protective cover 28. The integrated block 23 is respectively connected to the actuator tube 29, the second connecting tube 25 and the first connecting tube 24, the second connecting tube 25 is connected to the fourth connecting tube 27, the integrated block 23 is connected to the system check valve 5, and the system check valve 5 is arranged between the oil circuit of the accumulator 8 and the oil pump 4. The integrated block 23 is also connected to the reversing valve 11, the working check valve 12 and the working stop valve 13. The reversing valve 11, the working check valve 12 and the working stop valve 13 are arranged on the oil inlet of the oil cylinder 21, and the reversing valve 11 is arranged close to the oil cylinder 21.

[0042] The integrated block 23 is connected to the system overflow valve 5 and the system stop valve 7. The system overflow valve 5, the system stop valve 7 and the working stop valve 13 are arranged in the same oil circuit. The oil tank 1 is connected to the air filter 16, and the air filter 16 is arranged on the top of the oil tank 1. The oil pump 4 is connected to the oil tank 1 through the system overflow valve 5. The excess hydraulic oil in the system flows into the oil tank 1 through the system overflow valve 5. When the device needs to be repaired, the system stop valve 7 can be closed to cut off the hydraulic oil passage for repair.

[0043] Example 6 The spring hydraulic internal support parking anti-skid device includes an actuator 22, which is connected to an integrated block assembly 31 through an actuator tube 29, and the integrated block assembly 31 is connected to an oil pump assembly 30 through a first connecting tube 24. The integrated block assembly 31 is connected to an oil tank 1, and the oil tank 1 is connected to the oil pump assembly 30. The oil tank 1 is also connected to an accumulator 8, and the accumulator 8 is connected to the integrated block assembly 31 through a second connecting tube 25.

[0044] A protective cover 28 is connected to the top of the oil tank 1 , and the integrated block assembly 31 and the accumulator 8 are both arranged inside the protective cover 28 .

[0045] The actuator 22 includes an oil cylinder 21 , an output end of the oil cylinder 21 is connected to a brake rail 20 , a push rod in the oil cylinder 21 is connected to a spring 19 , and an end of the oil cylinder 21 away from the brake rail 20 is connected to an actuator tube 29 .

[0046] The oil cylinder 21 is connected with a travel switch, and the travel switch is arranged close to the brake rail 20 .

[0047] The oil pump assembly 30 includes an oil pump 4 , which is connected to the filter 2 via a third connecting pipe 26 , and is connected to the motor 3 . The oil pump 4 and the filter 2 are both arranged in the oil tank 1 , and the oil pump 4 is connected to the fourth connecting pipe 27 and the first connecting pipe 24 .

[0048] The integrated block assembly 31 includes an integrated block 23, which is connected to the oil tank 1 and is arranged in a protective cover 28. The integrated block 23 is respectively connected to the actuator tube 29, the second connecting tube 25 and the first connecting tube 24, the second connecting tube 25 is connected to the fourth connecting tube 27, the integrated block 23 is connected to the system check valve 5, and the system check valve 5 is arranged between the oil circuit of the accumulator 8 and the oil pump 4. The integrated block 23 is also connected to the reversing valve 11, the working check valve 12 and the working stop valve 13. The reversing valve 11, the working check valve 12 and the working stop valve 13 are arranged on the oil inlet of the oil cylinder 21, and the reversing valve 11 is arranged close to the oil cylinder 21.

[0049] The integrated block 23 is connected to the system overflow valve 5 and the system stop valve 7. The system overflow valve 5, the system stop valve 7 and the working stop valve 13 are arranged in the same oil circuit. The oil tank 1 is connected to the air filter 16. The air filter 16 is arranged on the top of the oil tank 1.

[0050] The integrated block 23 is connected with a pressure controller 9 and a system pressure measuring joint 10. The pressure controller 9 is connected to the motor 3 through a pipeline. The pressure controller 9 controls the motor 3 through the electrical system, the pressure controller 9 controls the start and stop of the motor 3, and the system pressure measuring joint 10 detects the system pressure.

[0051] The integrated block 23 is connected with a working overflow valve 14 and a working pressure measuring joint 15, which are arranged on a branch oil path between the oil cylinder 21 and the reversing valve 11. The hydraulic oil returned from the oil cylinder 21 is returned to the oil tank 1 through the working overflow valve 14.

[0052] Example 7 The anti-slip method of the hydraulic inner-support parking anti-slip device of the present invention is specifically implemented according to the following steps: Step 1, when the coil CT of the reversing valve 11 is de-energized, the pressure oil enters the oil cylinder 21 through the reversing valve 11, the oil cylinder 21 overcomes the resistance of the spring 19 to put the brake rail 20 in the braking position, and the spring 19 in the oil cylinder 21 is compressed; Step 2, when a vehicle enters the device, the vehicle compresses the oil cylinder 21 through the brake rail 20, and the hydraulic oil in the oil cylinder 21 returns to the oil tank 1 through the working overflow valve 14, thereby preventing the vehicle from slipping; Step 3, when the coil CT of the reversing valve 11 is energized, the hydraulic oil in the cylinder 21 is connected to the oil tank 1 through the reversing valve 11, the spring 19 in the cylinder 21 overcomes the resistance and puts the brake rail 20 in the relief position, and the spring 19 in the cylinder 21 returns to its initial state, thereby relieving the vehicle and ensuring the safe passage of the vehicle.

[0053] The spring hydraulic inner support parking anti-skid device of the present invention relies on hydraulic pressure to implement effective braking of a sliding vehicle, relies on a spring to implement effective relief of a sliding vehicle, and the anti-skid capacity is adjustable. The oil cylinder adopts a single-acting type, and the hydraulic oil of the electromagnetic reversing valve of the liquid control system only reaches one oil port of the oil cylinder, thereby realizing the braking oil supply and relief oil return of the oil cylinder. When braking, the hydraulic oil in the oil cylinder returns to the oil tank through the overflow valve, which is convenient for adjusting the braking capacity of the parking anti-skid device. When relief is achieved, the hydraulic oil in the oil cylinder returns to the oil tank through the electromagnetic reversing valve, which expands the applicability of the equipment. At the same time, the spring is installed inside the oil cylinder, and the design is novel, the structure is compact and simple, the operation is safe and reliable, the equipment is easy to install, and the manufacturing and subsequent maintenance costs are low.

Claims

1. Spring hydraulic internal support parking anti-slip device, characterized by: The invention comprises an actuator (22), wherein the actuator (22) is connected to an integrated block assembly (31) via an actuator tube (29), wherein the integrated block assembly (31) is connected to an oil pump assembly (30) via a first connecting tube (24), wherein the integrated block assembly (31) is connected to an oil tank (1), wherein the oil tank (1) is connected to the oil pump assembly (30), wherein the oil tank (1) is further connected to an accumulator (8), and wherein the accumulator (8) is connected to the integrated block assembly (31) via a second connecting tube (25).

2. The spring hydraulic inner support parking anti-slip device according to claim 1 is characterized in that: The top of the oil tank (1) is connected to a protective cover (28), and the integrated block assembly (31) and the accumulator (8) are both arranged inside the protective cover (28).

3. The spring hydraulic inner support parking anti-slip device according to claim 1 is characterized in that: The actuator (22) comprises an oil cylinder (21), the output end of the oil cylinder (21) is connected to a brake rail (20), a push rod in the oil cylinder (21) is connected to a spring (19), and the end of the oil cylinder (21) away from the brake rail (20) is connected to an actuator tube (29).

4. The spring hydraulic inner support parking anti-slip device according to claim 3 is characterized in that: The oil cylinder (21) is connected to a travel switch, and the travel switch is arranged close to the brake rail (20).

5. The spring hydraulic inner support parking anti-slip device according to claim 1, characterized in that: The oil pump assembly (30) comprises an oil pump (4), the oil pump (4) being connected to a filter (2) via a third connecting pipe (26), the oil pump (4) being connected to an electric motor (3), the oil pump (4) and the filter (2) being both arranged in an oil tank (1), and the oil pump (4) being connected to a fourth connecting pipe (27) and a first connecting pipe (24).

6. The spring hydraulic inner support parking anti-slip device according to claim 2 is characterized in that: The integrated block assembly (31) comprises an integrated block (23), the integrated block (23) being connected to an oil tank (1), the integrated block (23) being arranged in a protective cover (28), the integrated block (23) being respectively connected to an actuator tube (29), a second connecting tube (25) and a first connecting tube (24), the integrated block (23) being connected to a system check valve (5), the system check valve (5) being arranged between an accumulator (8) and an oil circuit of an oil pump (4), the integrated block (23) being further connected to a reversing valve (11), a working check valve (12) and a working stop valve (13), the reversing valve (11), the working check valve (12) and the working stop valve (13) being arranged on an oil circuit of an oil cylinder (21), the reversing valve (11) being arranged close to the oil cylinder (21).

7. The spring hydraulic inner support parking anti-slip device according to claim 6 is characterized in that: The integrated block (23) is connected to a system overflow valve (5) and a system stop valve (7); the system overflow valve (5), the system stop valve (7) and the working stop valve (13) are arranged in the same oil circuit; the oil tank (1) is connected to an air filter (16); and the air filter (16) is arranged on the top of the oil tank (1).

8. The spring hydraulic inner support parking anti-slip device according to claim 6, characterized in that: The integrated block (23) is connected to a pressure controller (9) and a system pressure measuring joint (10).

9. The spring hydraulic inner support parking anti-slip device according to claim 6, characterized in that: The integrated block (23) is connected to a working overflow valve (14) and a working pressure measuring joint (15); the working overflow valve (14) and the working pressure measuring joint (15) are arranged on a branch oil circuit between the oil cylinder (21) and the reversing valve (11).

10. The anti-slip method of the hydraulic inner-support parking anti-slip device according to any one of claims 1 to 9, characterized in that: Follow the steps below to implement it: Step 1, when the coil CT of the reversing valve (11) is de-energized, the pressure oil enters the oil cylinder (21) through the reversing valve (11), the oil cylinder (21) overcomes the resistance of the spring (19) so that the brake rail (20) is in the braking position, and the spring (19) in the oil cylinder (21) is compressed; Step 2, when a vehicle enters the device, the vehicle compresses the oil cylinder (21) through the brake rail (20), and the hydraulic oil in the oil cylinder (21) returns to the oil tank (1) through the working overflow valve (14), thereby preventing the vehicle from slipping; Step 3, when the coil CT of the reversing valve (11) is energized, the hydraulic oil in the oil cylinder (21) communicates with the oil tank (1) through the reversing valve (11), the spring (19) in the oil cylinder (21) overcomes the resistance and places the brake rail (20) in the release position, and the spring (19) in the oil cylinder (21) returns to the initial state, thereby releasing the vehicle and ensuring the safe passage of the vehicle.

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