Safety type parking anti-slip device

Abstract

The utility model discloses a safe parking anti -slip device, including support beam, both ends of support beam all are connected with basic rail through fixed assembly, and support beam is connected with support unit, and support unit is hinged with support seat, and both ends of support seat are connected with brake unit and oil cylinder respectively, and the cylinder body outer wall of oil cylinder is connected with locking device. The utility model discloses brake and relieve the equipment can be self -locking, and the equipment anti -slip ability does not reduce when equipment power failure or pressure failure, and brake and relieve the action state do not change, can guarantee parking safety, solved the electric parking anti -slip ware brake and relieve the action time generally longer, and the hydraulic parking anti -slip ware is at power failure or hydraulic failure, and the defect of brake capacity decline.

Description

Technical Field

[0001] This utility model belongs to the technical field of parking anti-rollover equipment, specifically relating to a safe parking anti-rollover device. Background Technology

[0002] Currently, anti-runaway devices used in my country's hump yards can be classified into electric and hydraulic anti-runaway devices according to their braking methods.

[0003] Electric parking anti-rollover devices all use a motor, reducer, and lead screw as power sources to drive other mechanical devices to control the braking and release actions of the anti-rollover device. Due to the use of reducers and lead screws, the braking and release actions of electric parking anti-rollover devices are generally longer, thus affecting the departure efficiency.

[0004] Hydraulic parking anti-roll devices control the braking and release actions of the device by controlling the hydraulic circuit of the hydraulic station to the actuator cylinder. In the event of a power outage or hydraulic failure, the braking capacity of a hydraulic parking anti-roll device decreases, failing to meet the vehicle's safety anti-roll requirements and creating a risk of the vehicle rolling away. Utility Model Content

[0005] The purpose of this invention is to provide a safe parking anti-rollover device, which solves the problem that the braking and linkage actions of the existing parking anti-rollover device are too long, affecting the departure efficiency.

[0006] The technical solution adopted by this utility model is: a safe parking anti-rollover device, including a support beam, both ends of which are connected to a basic rail through a fixing component, a support unit connected to the support beam, a support seat hinged to the support unit, a braking unit and a hydraulic cylinder respectively connected to both ends of the support seat, and a locking device connected to the outer wall of the hydraulic cylinder.

[0007] The feature of this utility model is that, The support unit includes two base frames, the bottom of which is connected to a support beam. Each base frame is hinged to a crank arm via a first pin. The end of the crank arm away from the base frame is hinged to a connecting seat via a second pin. The connecting seat is connected to the support seat.

[0008] Both the cylinder body end and the piston rod end of the hydraulic cylinder are connected to the support base via connecting pins, and a disc spring is connected inside the support base.

[0009] One end of the disc spring is connected to the inner wall of the support base, and the other end of the disc spring is connected to a compression cap. The two compression caps, on the side away from the disc spring, are connected to the cylinder body and piston rod of the hydraulic cylinder, respectively.

[0010] The braking unit includes a brake rail, one side of which is connected to the end of the support base away from the connecting pin.

[0011] The locking device includes a geared motor connected to the side wall of the cylinder body. A retaining ring is connected to the output end of the geared motor. The piston rod of the cylinder passes through the retaining ring. One side of the retaining ring contacts one end of the cylinder body. A receiving hole is evenly opened around the circumference of the side of the retaining ring away from the cylinder body. Several grooves are evenly opened around the circumference of the retaining ring. The grooves and receiving holes are staggered. Several locking rods are evenly connected around the circumference of the cylinder flange. The locking rods match the receiving holes and grooves.

[0012] The fixing components include a pressure iron and an anti-loosening groove iron, which are connected by bolts. The support beam and the base rail are located between the pressure iron and the anti-loosening groove iron. An inclined shim and an adjusting shim are provided between the support beam and the base rail. The inclined shim is located above the adjusting shim. The bolts pass through the pressure iron, the inclined shim, the adjusting shim, and the anti-loosening groove iron in sequence. An insulating plate is provided between the adjusting shim and the support beam. The bolts are fitted with insulating sleeves, which are located between the anti-loosening groove iron and the adjusting shim.

[0013] The hydraulic cylinder is connected to two main metal oil pipes.

[0014] The beneficial effects of this utility model are: This utility model relates to a safe parking anti-rollover device. After braking and releasing, the device self-locks. Even in the event of power failure or pressure malfunction, the anti-rollover capability remains unchanged, and the braking and releasing states remain consistent, ensuring parking safety. It addresses the shortcomings of electric parking anti-rollover devices, which generally have long braking and releasing times, and hydraulic parking anti-rollover devices, which experience reduced braking capacity during power outages or hydraulic failures. This invention fills the gap in parking anti-rollover devices that ensure self-locking after braking and releasing, maintain anti-rollover capability without reduction in braking and releasing states even in the event of power failure or pressure malfunctions, and guarantee parking safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the braking position of the safety anti-rollover device for parking according to this utility model; Figure 2 This is a schematic diagram of the connection structure between the support beam and the basic rail in the safety anti-rollover device for parking of this utility model; Figure 3 This is a schematic diagram of the relief position of the safety anti-rollover device for parking according to this utility model.

[0016] In the diagram, 1. Basic rail, 2. Brake rail, 3. Support seat, 4. Crank arm, 5. Connecting pin, 6. Hydraulic cylinder, 7. Gear motor, 8. Locking rod, 9. Connecting seat, 10. Disc spring, 11. Metal main oil pipe, 12. Support beam, 13. First pin, 14. Pressure iron, 15. Inclined shim, 16. Adjusting shim, 17. Insulating plate, 18. Insulating sleeve, 19. Anti-loosening slot iron, 20. Base frame, 21. Second pin, 22. Compression cover, 23. Snap ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides a safe parking anti-rollover device, such as... Figure 1 As shown, the device includes a support beam 12, with both ends of the support beam 12 connected to a basic rail 1 via fixed components. Support units are connected to the support beam 12, and support seats 3 are hinged to the support units. Braking units and hydraulic cylinders 6 are connected to both ends of the support seats 3, respectively. A locking device is connected to the outer wall of the cylinder body of the hydraulic cylinder 6. There are two support units and two support seats 3. The left support seat 3 is connected to the end of the cylinder body of the hydraulic cylinder 6, and the right support seat 3 is connected to the end of the piston rod of the hydraulic cylinder 6. The locking device ensures that the anti-slip capability of the device does not decrease and the braking and release actions do not change when the system is powered off or experiences a pressure failure. When the hump vehicle enters the parking anti-slip device track circuit and comes to a stop, the hydraulic cylinder 6 drives its two support seats 3 and the braking unit connected to the support seats 3 to move, squeezing the wheels. The locking device locks the hydraulic cylinder 6, ensuring that the anti-slip capability of the device remains unchanged after a system failure. When the vehicle needs to be pulled out, the locking device unlocks the hydraulic cylinder 6, the hydraulic cylinder 6 retracts back to its original position, and drives the support seats 3 and the connected braking unit to the release position, allowing the vehicle to leave.

[0019] Example 1 The safety parking anti-rollover device includes a support beam 12, with a base rail 1 connected to both ends of the support beam 12 via a fixing component. A support unit is connected to the support beam 12, and a support seat 3 is hinged to the support unit. A braking unit and a hydraulic cylinder 6 are respectively connected to both ends of the support seat 3. A locking device is connected to the outer wall of the cylinder 6.

[0020] The support unit includes two base frames 20, the bottom of which is connected to the support beam 12. Each base frame 20 is hinged to a crank arm 4 via a first pin 13. The end of the crank arm 4 furthest from the base frame 20 is hinged to a connecting seat 9 via a second pin 21. The connecting seat 9 is connected to the support base 3. The connecting seat 9 moves along the first pin 13, and the hydraulic cylinder 6 drives the support base 3, the connecting seat 9, and the braking unit connected to the support base 3 to perform linear translational motion.

[0021] Example 2 The safety parking anti-rollover device includes a support beam 12, with a base rail 1 connected to both ends of the support beam 12 via a fixing component. A support unit is connected to the support beam 12, and a support seat 3 is hinged to the support unit. A braking unit and a hydraulic cylinder 6 are respectively connected to both ends of the support seat 3. A locking device is connected to the outer wall of the cylinder 6.

[0022] The support unit includes two base frames 20. The bottom of both base frames 20 is connected to the support beam 12. Both base frames 20 are hinged to a crank arm 4 via a first pin 13. The end of the crank arm 4 away from the base frame 20 is hinged to a connecting seat 9 via a second pin 21. The connecting seat 9 is connected to the support seat 3.

[0023] Both the cylinder body end and the piston rod end of the hydraulic cylinder 6 are connected to the support base 3 via connecting pins 5. A disc spring 10 is connected inside the support base 3. The disc spring 10 ensures that the anti-slip performance of the equipment is not reduced after the hydraulic cylinder 6 loses pressure or drops pressure. When the hydraulic cylinder 6 compresses the support base 3, the disc spring 10 inside the support base 3 generates braking force.

[0024] Example 3 The safety parking anti-rollover device includes a support beam 12, with a base rail 1 connected to both ends of the support beam 12 via a fixing component. A support unit is connected to the support beam 12, and a support seat 3 is hinged to the support unit. A braking unit and a hydraulic cylinder 6 are respectively connected to both ends of the support seat 3. A locking device is connected to the outer wall of the cylinder 6.

[0025] The support unit includes two base frames 20. The bottom of both base frames 20 is connected to the support beam 12. Both base frames 20 are hinged to a crank arm 4 via a first pin 13. The end of the crank arm 4 away from the base frame 20 is hinged to a connecting seat 9 via a second pin 21. The connecting seat 9 is connected to the support seat 3.

[0026] The cylinder body end and piston rod end of the hydraulic cylinder 6 are both connected to the support base 3 via connecting pins 5, and a disc spring 10 is connected inside the support base 3.

[0027] One end of the disc spring 10 is connected to the inner wall of the support base 3, and the other end of the disc spring 10 is connected to a compression cover 22. The two compression covers 22, on the side away from the disc spring 10, are respectively connected to the cylinder body and piston rod of the hydraulic cylinder 6. The cylinder body and piston rod of the hydraulic cylinder 6 are respectively connected to the two compression covers 22 in the support base 3, and the disc spring 10 is compressed through the compression covers 22.

[0028] Example 4 The safety parking anti-rollover device includes a support beam 12, with a base rail 1 connected to both ends of the support beam 12 via a fixing component. A support unit is connected to the support beam 12, and a support seat 3 is hinged to the support unit. A braking unit and a hydraulic cylinder 6 are respectively connected to both ends of the support seat 3. A locking device is connected to the outer wall of the cylinder 6.

[0029] The support unit includes two base frames 20. The bottom of both base frames 20 is connected to the support beam 12. Both base frames 20 are hinged to a crank arm 4 via a first pin 13. The end of the crank arm 4 away from the base frame 20 is hinged to a connecting seat 9 via a second pin 21. The connecting seat 9 is connected to the support seat 3.

[0030] The cylinder body end and piston rod end of the hydraulic cylinder 6 are both connected to the support base 3 via connecting pins 5, and a disc spring 10 is connected inside the support base 3.

[0031] One end of the disc spring 10 is connected to the inner wall of the support base 3, and the other end of the disc spring 10 is connected to the compression cover 22. The two compression covers 22 are connected to the cylinder body and piston rod of the oil cylinder 6 on the side away from the disc spring 10, respectively.

[0032] The braking unit includes a brake rail 2, one side of which is connected to the end of the support 3 away from the connecting pin 5. The support 3 drives the brake rail 2 to brake the wheels.

[0033] Example 5 The safety parking anti-rollover device includes a support beam 12, with a base rail 1 connected to both ends of the support beam 12 via a fixing component. A support unit is connected to the support beam 12, and a support seat 3 is hinged to the support unit. A braking unit and a hydraulic cylinder 6 are respectively connected to both ends of the support seat 3. A locking device is connected to the outer wall of the cylinder 6.

[0034] The support unit includes two base frames 20. The bottom of both base frames 20 is connected to the support beam 12. Both base frames 20 are hinged to a crank arm 4 via a first pin 13. The end of the crank arm 4 away from the base frame 20 is hinged to a connecting seat 9 via a second pin 21. The connecting seat 9 is connected to the support seat 3.

[0035] The cylinder body end and piston rod end of the hydraulic cylinder 6 are both connected to the support base 3 via connecting pins 5, and a disc spring 10 is connected inside the support base 3.

[0036] One end of the disc spring 10 is connected to the inner wall of the support base 3, and the other end of the disc spring 10 is connected to the compression cover 22. The two compression covers 22 are connected to the cylinder body and piston rod of the oil cylinder 6 on the side away from the disc spring 10, respectively.

[0037] The braking unit includes a brake rail 2, one side of which is connected to the end of the support 3 away from the connecting pin 5.

[0038] The locking device includes a geared motor 7, which is connected to the side wall of the cylinder body of the hydraulic cylinder 6. The output end of the geared motor 7 is connected to a retaining ring 23. The piston rod of the hydraulic cylinder 6 passes through the retaining ring 23. One side of the retaining ring 23 contacts one end of the cylinder body of the hydraulic cylinder 6. The side of the retaining ring 23 away from the cylinder body of the hydraulic cylinder 6 has a uniformly distributed receiving hole along its circumference. The retaining ring 23 has a number of grooves uniformly distributed along its circumference. The grooves and receiving holes are staggered. The flange of the hydraulic cylinder 6 is uniformly connected with a number of locking rods 8 along its circumference. The locking rods 8 match the receiving holes and grooves. The piston rod end of the hydraulic cylinder 6 is connected to the support base 3 through the hydraulic cylinder flange. The locking rod 8 has a certain elasticity. The reduction motor 7 is located at the bottom of the hydraulic cylinder 6 and is located near the end of the cylinder body. When the hydraulic cylinder 6 is started, the locking rod 8 extends out of the receiving hole with the movement of the piston rod. When the hydraulic cylinder 6 reaches the end of its stroke, the reduction motor 7 drives the retaining ring 23 to rotate. The locking rod 8 is opposite to the groove. The groove is very shallow. When the device is powered off or there is a pressure failure, the end of the locking rod 8 is pressed against the groove to lock the hydraulic cylinder 6. Reversing the reduction motor 7 and aligning the locking rod 8 with the receiving hole will unlock the hydraulic cylinder 6.

[0039] Example 6 The safety parking anti-rollover device includes a support beam 12, with a base rail 1 connected to both ends of the support beam 12 via a fixing component. A support unit is connected to the support beam 12, and a support seat 3 is hinged to the support unit. A braking unit and a hydraulic cylinder 6 are respectively connected to both ends of the support seat 3. A locking device is connected to the outer wall of the cylinder 6.

[0040] The support unit includes two base frames 20. The bottom of both base frames 20 is connected to the support beam 12. Both base frames 20 are hinged to a crank arm 4 via a first pin 13. The end of the crank arm 4 away from the base frame 20 is hinged to a connecting seat 9 via a second pin 21. The connecting seat 9 is connected to the support seat 3.

[0041] The cylinder body end and piston rod end of the hydraulic cylinder 6 are both connected to the support base 3 via connecting pins 5, and a disc spring 10 is connected inside the support base 3.

[0042] One end of the disc spring 10 is connected to the inner wall of the support base 3, and the other end of the disc spring 10 is connected to the compression cover 22. The two compression covers 22 are connected to the cylinder body and piston rod of the oil cylinder 6 on the side away from the disc spring 10, respectively.

[0043] The braking unit includes a brake rail 2, one side of which is connected to the end of the support 3 away from the connecting pin 5.

[0044] The locking device includes a geared motor 7, which is connected to the side wall of the cylinder body of the hydraulic cylinder 6. The output end of the geared motor 7 is connected to a retaining ring 23. The piston rod of the hydraulic cylinder 6 passes through the retaining ring 23. One side of the retaining ring 23 contacts one end of the cylinder body of the hydraulic cylinder 6. The side of the retaining ring 23 away from the cylinder body of the hydraulic cylinder 6 has a uniformly distributed receiving hole along its circumference. The retaining ring 23 has a number of grooves uniformly distributed along its circumference. The grooves and receiving holes are staggered. The flange of the hydraulic cylinder 6 is uniformly connected with a number of locking rods 8 along its circumference. The locking rods 8 match the receiving holes and grooves.

[0045] like Figure 2 As shown, the fixing assembly includes a pressure iron 14 and an anti-loosening groove iron 19, which are connected by bolts. A support beam 12 and a base rail 1 are positioned between the pressure iron 14 and the anti-loosening groove iron 19. An inclined shim 15 and an adjusting shim 16 are provided between the support beam 12 and the base rail 1, with the inclined shim 15 positioned above the adjusting shim 16. Bolts pass sequentially through the pressure iron 14, inclined shim 15, adjusting shim 16, and anti-loosening groove iron 19. An insulating plate 17 is provided between the adjusting shim 16 and the support beam 12, and an insulating sleeve 18 is fitted onto the bolts. The insulating sleeve 18 is positioned between the anti-loosening groove iron 19 and the adjusting shim 16. To accommodate the installation requirements of the base rail 1, a transition positioning inclined shim 15 is added between the support beam 12 and the base rail 1. Considering the wear-related clearance adjustment requirements, an adjusting shim 16 is designed on the upper plane of the support beam 12. To achieve insulation between the two rails, an insulating plate 17 and an insulating sleeve 18 are added.

[0046] Example 7 The safety parking anti-rollover device includes a support beam 12, with a base rail 1 connected to both ends of the support beam 12 via a fixing component. A support unit is connected to the support beam 12, and a support seat 3 is hinged to the support unit. A braking unit and a hydraulic cylinder 6 are respectively connected to both ends of the support seat 3. A locking device is connected to the outer wall of the cylinder 6.

[0047] The support unit includes two base frames 20. The bottom of both base frames 20 is connected to the support beam 12. Both base frames 20 are hinged to a crank arm 4 via a first pin 13. The end of the crank arm 4 away from the base frame 20 is hinged to a connecting seat 9 via a second pin 21. The connecting seat 9 is connected to the support seat 3.

[0048] The cylinder body end and piston rod end of the hydraulic cylinder 6 are both connected to the support base 3 via connecting pins 5, and a disc spring 10 is connected inside the support base 3.

[0049] One end of the disc spring 10 is connected to the inner wall of the support base 3, and the other end of the disc spring 10 is connected to the compression cover 22. The two compression covers 22 are connected to the cylinder body and piston rod of the oil cylinder 6 on the side away from the disc spring 10, respectively.

[0050] The braking unit includes a brake rail 2, one side of which is connected to the end of the support 3 away from the connecting pin 5.

[0051] The locking device includes a geared motor 7, which is connected to the side wall of the cylinder body of the hydraulic cylinder 6. The output end of the geared motor 7 is connected to a retaining ring 23. The piston rod of the hydraulic cylinder 6 passes through the retaining ring 23. One side of the retaining ring 23 contacts one end of the cylinder body of the hydraulic cylinder 6. The side of the retaining ring 23 away from the cylinder body of the hydraulic cylinder 6 has a uniformly distributed receiving hole along its circumference. The retaining ring 23 has a number of grooves uniformly distributed along its circumference. The grooves and receiving holes are staggered. The flange of the hydraulic cylinder 6 is uniformly connected with a number of locking rods 8 along its circumference. The locking rods 8 match the receiving holes and grooves.

[0052] The fixing assembly includes a pressure iron 14 and an anti-loosening groove iron 19, which are connected by bolts. The support beam 12 and the base rail 1 are located between the pressure iron 14 and the anti-loosening groove iron 19. An inclined shim 15 and an adjusting shim 16 are provided between the support beam 12 and the base rail 1. The inclined shim 15 is located above the adjusting shim 16. The bolts pass through the pressure iron 14, the inclined shim 15, the adjusting shim 16 and the anti-loosening groove iron 19 in sequence. An insulating plate 17 is provided between the adjusting shim 16 and the support beam 12. The bolts are fitted with an insulating sleeve 18, which is located between the anti-loosening groove iron 19 and the adjusting shim 16.

[0053] The hydraulic cylinder 6 is connected to two main metal hydraulic pipes 11. There are two main metal hydraulic pipes 11, one for braking and one for releasing, which are welded from cold-drawn seamless steel pipes. A high-pressure hose is used as a branch pipe, which connects the main metal hydraulic pipes 11 to the hydraulic cylinder 6 to provide pressure energy for braking and releasing the hydraulic cylinder 6.

[0054] The working principle of this utility model's safe parking anti-rollover device is as follows: After the hump vehicle enters the parking anti-rollover device's track circuit and comes to a stop, the device begins to operate under the action of the hydraulic system. The hydraulic cylinder 6 drives the brake rail 2 on the support seat 3 to compress the wheels, causing the disc spring 10 inside the support seat 3 to generate braking force. After the hydraulic cylinder 6 reaches its stroke limit, the reduction motor 7 drives the retaining ring 23 to rotate, aligning the locking rod 8 with the groove. When the device experiences a power outage or pressure failure, the end of the locking rod 8 abuts against the groove, locking the hydraulic cylinder 6. The braking force generated by the disc spring 10 inside the support seat 3 remains unchanged, ensuring that the anti-rollover capability of the device is not reduced when the power is lost or the pressure fails. When the vehicle needs to be towed out, the reduction motor 7 is reversed, the locking rod 8 is aligned with the receiving hole, the locking and unlocking cylinder 6's stroke is interrupted, the piston rod of the hydraulic cylinder 6 retracts, and the brake rail 2 on the support seat 3 moves to the release position. Figure 3 As shown, the vehicle passed the parking anti-rollover device smoothly.

[0055] This utility model is a safe parking anti-rollover device. After braking and releasing, the device can self-lock. When the device loses power or has a pressure failure, the anti-rollover capability is not reduced, and the braking and releasing action status is not changed, which can ensure parking safety. It solves the defects of electric parking anti-rollover devices, which generally have long braking and releasing action times, and hydraulic parking anti-rollover devices, which have reduced braking capability when power is lost or hydraulic failure occurs.

Claims

1. A safety-type anti-rollover parking device, characterized in that, Includes a support beam (12), both ends of which are connected to a base rail (1) via a fixing component. A support unit is connected to the support beam (12), and a support seat (3) is hinged to the support unit. A braking unit and a hydraulic cylinder (6) are respectively connected to both ends of the support seat (3). A locking device is connected to the outer wall of the cylinder (6).

2. The safety parking anti-rollover device as described in claim 1, characterized in that, The support unit includes two base frames (20), the bottom of which is connected to the support beam (12). Both base frames (20) are hinged to a crank arm (4) via a first pin (13). The end of the crank arm (4) away from the base frame (20) is hinged to a connecting seat (9) via a second pin (21). The connecting seat (9) is connected to the support seat (3).

3. The safety parking anti-rollover device as described in claim 1, characterized in that, The cylinder body end and piston rod end of the oil cylinder (6) are connected to the support base (3) by connecting pin (5), and a disc spring (10) is connected inside the support base (3).

4. The safety-type anti-rollover parking device as described in claim 3, characterized in that, One end of the disc spring (10) is connected to the inner wall of the support base (3), and the other end of the disc spring (10) is connected to a compression cover (22). The two compression covers (22) are connected to the cylinder body and piston rod of the oil cylinder (6) on the side away from the disc spring (10), respectively.

5. The safety parking anti-rollover device as described in claim 1, characterized in that, The braking unit includes a brake rail (2), one side of which is connected to the end of the support seat (3) away from the connecting pin (5).

6. The safety-type anti-rollover parking device as described in claim 1, characterized in that, The locking device includes a geared motor (7), which is connected to the side wall of the cylinder body of the oil cylinder (6). The output end of the geared motor (7) is connected to a retaining ring (23). The piston rod of the oil cylinder (6) passes through the retaining ring (23). One side of the retaining ring (23) contacts one end of the cylinder body of the oil cylinder (6). The side of the retaining ring (23) away from the cylinder body of the oil cylinder (6) is provided with a receiving hole evenly along its circumference. The retaining ring (23) is provided with a number of grooves evenly along its circumference. The grooves and receiving holes are staggered. The flange of the oil cylinder (6) is evenly connected with a number of locking rods (8) along its circumference. The locking rods (8) match the receiving holes and grooves.

7. The safety-type anti-rollover parking device as described in claim 1, characterized in that, The fixing assembly includes a pressure iron (14) and an anti-loosening groove iron (19). The pressure iron (14) and the anti-loosening groove iron (19) are connected by bolts. The support beam (12) and the basic rail (1) are located between the pressure iron (14) and the anti-loosening groove iron (19). An inclined shim (15) and an adjusting shim (16) are provided between the support beam (12) and the basic rail (1). The inclined shim (15) is located above the adjusting shim (16). The bolt passes through the pressure iron (14), the inclined shim (15), the adjusting shim (16) and the anti-loosening groove iron (19) in sequence. An insulating plate (17) is provided between the adjusting shim (16) and the support beam (12). The bolt is fitted with an insulating sleeve (18). The insulating sleeve (18) is located between the anti-loosening groove iron (19) and the adjusting shim (16).

8. The safety-type anti-rollover parking device as described in claim 1, characterized in that, The cylinder (6) is connected to two metal main oil pipes (11).

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