An emergency braking device for preventing electric train derailment

Abstract

This invention provides an emergency braking device for preventing derailment of electric passenger vehicles, relating to the field of braking technology. It includes a top plate, a connecting seat fixed to the lower side of the top plate, a line array camera fixedly mounted on the front side of the connecting seat, and extension arm structures on both sides of the connecting seat. An air tank located behind the connecting seat is fixed to the lower side of the top plate. The two extension arm structures, on the side furthest from the connecting seat, are outward-pointing and tilted forward and downward. The extension arm structures cause the connected sliding arm to move the storage tank and connecting seat towards the wheel. After the solenoid valve is opened, the gas in the air tank pushes the brake pads towards the wheel. During the friction between the brake pads and the wheel, the high-expansion alloy balls expand, further pressing the brake pads against the wheel. Meanwhile, carbonyl iron powder carried by the gas rubs against the two grinding wheels and the wheel section of the brake wheel, causing the wheel section of the brake wheel to extend into the inner side of the rail, thus achieving braking and preventing derailment.

Description

Technical Field

[0001] This invention relates to the field of braking technology, specifically to an emergency braking device for preventing electric train derailment. Background Technology

[0002] A tram is a public transportation vehicle that uses onboard power as its driving force, powered by a suitable onboard battery or cable power supply equipment. Common examples include subways and high-speed trains, which are types of trams. High braking performance is required when traveling at high speeds.

[0003] When subways and high-speed trains brake, the aim is to minimize the sliding distance and thus reduce the probability of major accidents. This is a common design principle for subway and high-speed train brakes. However, subway and high-speed train tracks are not strictly horizontal and parallel to each other. Therefore, the risk of derailment increases after high-speed travel and rapid braking. Hence, an emergency braking device for preventing derailment of electric trains has been designed. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an emergency braking device for preventing derailment of electric buses, which solves the problem that existing technologies cannot reduce the risk of derailment while achieving rapid braking using conventional brakes.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: an emergency braking device for preventing derailment of electric passenger vehicles, comprising a top plate, a connecting seat fixed on the lower side of the top plate, a line array camera fixedly mounted on the front side of the connecting seat, extension arm structures on both sides of the connecting seat, an air tank located behind the connecting seat fixed on the lower side of the top plate, the two extension arm structures having an outward V-shape on the side away from the connecting seat and tilting forward and downward, and a sliding arm provided on the outer sliding sleeve at the lower end of the two extension arm structures, and a second spring fixed between the inner bottom wall of the sliding arm and the lower end of the extension arm structure;

[0008] The gas storage tank is connected to a solenoid valve via a pipe. The gas outlet of the solenoid valve relative to the gas storage tank is connected to a sliding arm via an extension arm structure. The lower end of the sliding arm is fixed with a storage box, and the two are internally connected.

[0009] Two storage boxes are arranged parallel and symmetrically on both sides of the top plate. The two storage boxes are slidably connected by inner baffles on the side away from each other. There is a funnel-shaped gap between the inner baffles and the storage boxes. A connecting shaft is fixed to the other side of the inner baffle relative to the funnel-shaped gap. A brake pad is fixed to the other end of the connecting shaft. The brake pad slides through the side wall of the side away from each other of the two storage boxes. Carbonyl iron powder and high expansion alloy balls are respectively filled in the upper and lower parts of the funnel-shaped gap that cooperates with the inner baffles in the storage boxes. A baffle net is laid at the bottom of the high expansion alloy balls.

[0010] The storage box has a connecting seat fixed on its lower side. An adjusting knob is threadedly connected to the side of the connecting seat facing the connecting seat. A first grinding wheel is rotatably connected to one end of the adjusting knob inside the connecting seat. A brake wheel is rotatably connected to the side of the connecting seat away from the connecting seat. A second grinding wheel is fixed to one end of the brake wheel inside the connecting seat.

[0011] Preferably, the brake wheel includes a shaft segment inserted into the connecting seat and fixed to the second grinding wheel, and a wheel segment in the shape of a wheel. The shaft segment and the wheel segment are fixedly connected, and the wheel segment is located on the side of the storage box away from the connecting seat.

[0012] Preferably, the shaft segment of the brake wheel is fixed with a fixing plate inside and outside the connecting seat, the shaft segment of the brake wheel is provided with an air inlet between the fixing plates, and the wheel segment of the brake wheel is provided with an air outlet corresponding to the air inlet around its axis.

[0013] Preferably, the extension arm structure includes a motor, a screw, a guide cylinder, a connecting plate, and a side arm. The motor is fixedly installed inside the connecting seat and a second gear is fixed at its output end. The screw is rotatably connected to the rear of the connecting seat, and a first gear meshing with the second gear is fixed to the outer side of the screw. The guide cylinder is fixedly connected to the side of the connecting seat facing the storage box. The side arm includes a horizontal portion and an inclined portion that is V-shaped and tilts forward and downward. The horizontal portion of the side arm is slidably connected to the interior of the guide cylinder. A groove is provided on the rear side of the guide cylinder. The inner side of the connecting plate is slidably connected to the groove and fixed to one end of the horizontal portion of the side arm inside the guide cylinder. The connecting plate is threadedly connected to the screw, and the sliding arm is sleeved on the outer side of the inclined portion of the side arm.

[0014] Preferably, the side arm has an internal ventilation channel, one end of which is connected to a solenoid valve tube and the other end is connected to the inside of the sliding arm. The ventilation channel of the inclined part of the side arm includes a one-way valve that allows one-way flow to one side of the sliding arm.

[0015] Preferably, the gas inside the gas storage tank is pressurized and filled with oxygen and air at a volume ratio of 1:1.5, and the internal gas pressure is 0.8-1.2 MPa.

[0016] Preferably, a sealing ring is fixed inside the side of the sliding arm away from the storage box, and the sealing ring is sleeved on the outside of the inclined part of the side arm.

[0017] Preferably, a bracket is fixed at the end of the sliding arm away from the storage box and sleeved on the outside of the inclined part of the side arm. A pressure rod is rotatably connected to both the upper and lower sides of the inclined part of the side arm. A locking rod is fixed at the lower end of the pressure rod. A locking groove for cooperating with the locking rod is provided at the lower end of the inclined part of the side arm. A first spring is fixed inside the bracket to press the upper end of the pressure rod against the inclined part of the side arm.

[0018] Preferably, the included angle between the upper and lower sides of the inclined portion of the side arm is 15°, and an anti-slip pad is fixed to the upper end of the pressure rod facing the inclined portion of the side arm. Both the anti-slip pad and the sealing ring are made of silicone rubber.

[0019] Preferably, the connector is internally equipped with a data processing module and a battery, and the motor, line scan camera, solenoid valve and battery are all electrically connected to the data processing module.

[0020] (III) Beneficial Effects

[0021] This invention provides an emergency braking device for preventing derailment of electric passenger vehicles. It has the following beneficial effects:

[0022] In this invention, the extended arm structure causes the connected sliding arm to move the storage box and connecting seat closer to the wheel. This allows the gas in the gas tank to push the brake pads closer to the wheel after the solenoid valve is opened. During the friction between the brake pads and the wheel, the high-expansion alloy balls expand, causing the brake pads to press further against the wheel. Meanwhile, the carbonyl iron powder carried by the gas rubs against the two grinding wheels and the wheel section of the brake wheel, which extends into the inner side of the rail, thus playing a role in braking and preventing derailment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a rear view of the present invention;

[0025] Figure 3 This is a cross-sectional view of the card holder in this invention;

[0026] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 6 This is a side view of the present invention;

[0029] Figure 7 This is a cross-sectional view of the storage box and the connecting seat in this invention;

[0030] Figure 8 This is a cross-sectional view of the connecting seat in this invention;

[0031] Figure 9 This is a partial cross-sectional view of the upper end of the sliding arm in this invention.

[0032] The components are as follows: 1. Top plate; 2. Gas tank; 3. Storage box; 4. Brake pad; 5. Air outlet; 6. Brake wheel; 7. Connecting seat; 8. Adjusting knob; 9. Sliding arm; 10. Card holder; 11. One-way valve; 12. Side arm; 13. Limiting plate; 14. Guide cylinder; 15. Screw; 16. Connecting plate; 17. Line array camera; 18. Connecting seat; 19. First gear; 20. Solenoid valve; 21. Anti-slip pad; 22. First spring; 23. Turning rod; 24. Card rod; 25. Card slot; 26. Inner baffle; 27. First grinding wheel; 28. Air inlet; 29. ​​Fixing plate; 30. Second grinding wheel; 31. Connecting shaft; 32. Second gear; 33. Motor; 34. Sealing ring; 35. Second spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1:

[0035] like Figure 1-2As shown in Figures 4-9, this embodiment of the invention provides an emergency braking device for preventing derailment of electric trains, including a top plate 1. A connecting seat 18 is fixedly connected to the lower side of the top plate 1. A line array camera 17 is fixedly installed on the front side of the connecting seat 18. Both sides of the connecting seat 18 include extension arm structures, each including a motor 33, a screw 15, a guide cylinder 14, a connecting plate 16, and a side arm 12. There are two guide cylinders 14, which are respectively fixedly connected to the left and right sides of the connecting seat 18. Both guide cylinders 14 are through the middle. The motor 33 is fixedly installed on the connecting seat 18. The screw 15 is rotatably connected to the rear of the connecting seat 18, and a first gear 19 that meshes with the second gear 32 is fixedly connected to the outer side of the screw 15. After the motor 33 is started, the motor 33 drives the second gear 32 to rotate, and then drives the first gear 19 to rotate through the meshing of the second gear 32 and the first gear 19. The screw 15 is driven to rotate by the first gear 19. The rear side of the connecting seat 18 includes two support plates that support the screw 15. The side arm 12, connected to a bearing, includes a horizontal portion and an inclined portion that is V-shaped and tilts forward and downward. The horizontal portion of the side arm 12 is slidably connected to the interior of the guide cylinder 14. A groove is provided on the rear side of the guide cylinder 14. The inner side of the connecting plate 16 is slidably connected to the groove and fixed to one end of the horizontal portion of the side arm 12 inside the guide cylinder 14. The connecting plate 16 is threadedly connected to the screw 15. The sliding arm 9 is sleeved on the outer side of the inclined portion of the side arm 12, and the front section of the connecting plate 16 is sleeved on the outer side of the guide cylinder 14. After the screw 15 rotates, due to the guide... The guiding effect of the cylinder 14 on the connecting plate 16 and the guiding effect of the slide groove on the connecting plate 16 cause the screw 15 to drive the connecting plate 16 to move closer to or further away from the connecting seat 18. In turn, the connecting plate 16 drives the horizontal part of the side arm 12 to enter or exit the guide cylinder 14, so that the inclined part of the side arm 12 moves closer to or further away from the connecting seat 18. The end of the guide cylinder 14 away from the connecting seat 18 and the end of the screw 15 on the corresponding side are fixedly connected to the limiting plate 13. The limiting plate 13 prevents the connecting plate 16 from separating from the guide cylinder 14.

[0036] An air tank 2 located behind the connecting seat 18 is fixedly connected to the lower side of the top plate 1. A sliding arm 9 is slidably sleeved at the lower end of the inclined part of the side arm 12. A second spring 35 is fixedly connected between the inner bottom wall of the sliding arm 9 and the lower end of the inclined part of the side arm 12. The second spring 35 is located inside the sliding arm 9. Before the solenoid valve 20 is opened, the second spring 35 lifts the sliding arm 9 to prevent the brake wheel 6 from hitting the track bed.

[0037] The gas tank 2 is connected to the solenoid valve 20 through a pipe. The side arm 12 has a venting channel inside. One end of the venting channel is connected to the solenoid valve 20, and the corresponding pipe is located inside the guide cylinder 14. The other end of the venting channel is connected to the inside of the sliding arm 9. The venting channel of the inclined part of the side arm 12 includes a one-way valve 11 that flows one-way to the side of the sliding arm. The lower end of the sliding arm 9 is fixedly connected to the storage box 3, and the two are internally connected. That is, after the solenoid valve 20 is opened, the gas in the gas tank 2 flows one-way to the sliding arm 9 through the venting channel. The side of the sliding arm 9 away from the storage box 3 is fixedly connected to the sealing ring 34. The sealing ring 34 is made of silicone rubber and is sleeved on the outside of the inclined part of the side arm 12. After the gas in the gas tank 2 enters the sliding arm 9, the gas pressure overcomes the tension of the second spring 35 and pushes the sliding arm 9 downward.

[0038] Two storage boxes 3 are parallel and symmetrically distributed on both sides of the top plate 1. An inner baffle 26 is slidably connected to the two storage boxes 3 on the side furthest from each other, forming a funnel-shaped gap between the inner baffle 26 and the storage box 3. A connecting shaft 31 is fixed to the other side of the inner baffle 26 relative to the funnel-shaped gap, and a brake pad 4 is fixed to the other end of the connecting shaft 31. The connecting shaft 31 passes through the inner wall of the two storage boxes 3 on the side furthest from each other, and the brake pad 4 slides out through the side wall of the two storage boxes 3 on the side furthest from each other. Carbonyl iron powder and high-expansion alloy balls are respectively placed in the upper and lower funnel-shaped gaps inside the storage box 3 that cooperate with the inner baffle 26. A baffle mesh is laid at the bottom of the high-expansion alloy balls. The diameter of the high-expansion alloy balls is 0.5-1mm, and the aperture of the baffle mesh is smaller than the diameter of the high-expansion alloy balls but larger than the diameter of the carbonyl iron powder. Under the action of the gas entering the sliding arm 9, the inner baffle 26 is first moved towards the side wall of the storage box 3 opposite to the connecting seat 18, and then... Carbonyl iron powder is blown into the gap of the high expansion alloy ball. The inner baffle 26 drives the connecting shaft 31 to push the brake pad 4 outward along the direction away from each other of the two storage boxes 3. After the sliding arm 9 moves downward relative to the connecting seat 18, the brake pad 4 is located on the inner side of the wheel close to the rail, thus playing an auxiliary braking role. Due to the transfer of frictional heat from the brake pad 4 to the high expansion alloy ball, the high expansion alloy ball expands in volume, further promoting the brake pad 4 to press against the wheel. The above process also facilitates the carbonyl iron powder to fall from the gap of the high expansion alloy ball into the connecting seat 7. The brake pad 4 is any one of semi-metallic brake pad, sintered metal brake pad, and organic material brake pad. The organic material brake pad is made of various artificial fibers, carbon graphite, ceramics, sintered glass and petrochemical resin bonded together. The high expansion alloy ball is made of any one of Cu60Zn40, FeNi22Cr3, FeNi20Mn6, FeNi13Mn7 and Mn72Cr18Ni10.

[0039] The storage box 3 is fixedly connected to a connecting seat 7 that is in communication with each other. The side of the connecting seat 7 facing the connecting seat 18 is threadedly connected to an adjusting knob 8. One end of the adjusting knob 8 inside the connecting seat 7 is rotatably connected to a first grinding wheel 27. The side of the connecting seat 7 away from the connecting seat 18 is rotatably connected to a brake wheel 6. One end of the brake wheel 6 inside the connecting seat 7 is fixedly connected to a second grinding wheel 30. By rotating the adjusting knob 8, the first grinding wheel 27 is moved closer to or away from the connecting seat 18, which in turn causes the first grinding wheel 27 to move closer to or away from the second grinding wheel 30.

[0040] The brake wheel 6 includes a shaft segment inserted into the connecting seat 7 and fixed to the second grinding wheel 30, and a wheel segment in the shape of a wheel. The shaft segment and the wheel segment are fixedly connected. The wheel segment of the brake wheel 6 is located in the concave part of the rail. The brake wheel 6 is located on the side of the storage box 3 away from the connecting seat 18. The shaft segment of the brake wheel 6 is fixedly connected to a fixing plate 29 on the outside of the connecting seat 7. An air inlet 28 is provided between the fixing plates 29 on the shaft segment of the brake wheel 6. An air outlet 5 corresponding to the air inlet 28 is provided around the axis of the wheel segment of the brake wheel 6. That is, the air outlet 5 is circumferentially distributed along the axis of the wheel segment of the brake wheel 6.

[0041] The gas inside the gas storage tank 2 is pressurized and loaded with oxygen and air in a volume ratio of 1:1.5, and the internal gas pressure is 0.8-1.2MPa.

[0042] The connector 18 is equipped with a data processing module and a battery. The motor 33, the line array camera 17, the solenoid valve 20 and the battery are all electrically connected to the data processing module. The data processing module is electrically connected to the braking system of the object being used (i.e., subway or high-speed rail).

[0043] Working principle: After the braking system of the subway or high-speed rail issues a braking signal, the brakes within the system begin to operate. The data processing module controls the solenoid valve 20 to open, and simultaneously the motor 33 drives the second gear 32 to rotate. Through the meshing relationship between the second gear 32 and the first gear 19, the screw 15 rotates. The screw 15 then drives the connecting plate 16 to push the horizontal part of the side arm 12 to the outside of the guide cylinder 14, thereby pushing the storage box 3 towards the wheel on the rail. The gas in the gas tank 2 flows unidirectionally into the sliding arm 9 through the solenoid valve 20 and the vent, and under the action of the one-way valve 11, it pushes the sliding arm 9 downward. First, the inner baffle 26 moves away from the side wall of the storage box 3 relative to the connecting seat 18, and then the carbonyl iron powder is blown into the gap of the high expansion alloy ball. In the above, the inner baffle 26 drives the connecting shaft 31. The brake pad 4 is pushed outward along the direction away from each other in the two storage boxes 3. In this way, the brake pad 4 can get close to the inside of the wheel on the rail and play an auxiliary braking role. Due to the transfer of frictional heat from the brake pad 4 to the high expansion alloy ball, the high expansion alloy ball expands in volume, further promoting the brake pad 4 to press against the wheel. After the gas entering the storage box 3 and the funnel-shaped part of the inner baffle 26 carries the carbonyl iron powder into the connecting seat 7, the carbonyl iron powder is driven by the gas into the air inlet 28 and then blown out from the air outlet 5. Since the wheel segment of the brake wheel 6 is in the concave part of the rail and friction is generated as the wheel segment of the brake wheel 6 contacts the rail, the carbonyl iron powder enters between the first grinding wheel 27 and the second grinding wheel 30 and at the wheel segment of the brake wheel 6 and the rail. Friction occurs at the contact point, producing a welding-like effect, thereby playing an auxiliary braking role.

[0044] Example 2:

[0045] The difference between this embodiment and Embodiment 1 is that: a bracket 10, sleeved on the outside of the inclined portion of the side arm 12, is fixedly connected to the end of the sliding arm 9 away from the storage box 3; a pressure rod 23 is rotatably connected to both the upper and lower sides of the inclined portion of the side arm 12; a locking rod 24 is fixedly connected to the lower end of the pressure rod 23; a slot 25 for cooperating with the locking rod 24 is provided at the lower end of the inclined portion of the side arm 12; a first spring 22 is fixedly connected inside the bracket 10 to press the upper end of the pressure rod 23 against the inclined portion of the side arm 12; the included angle between the upper and lower sides of the inclined portion of the side arm 12 is 15°; an anti-slip pad 21 is fixedly connected to the side of the upper end of the pressure rod 23 facing the inclined portion of the side arm 12; the anti-slip pad 21 is made of silicone rubber; the specific structure can be found in the appendix of the instruction manual. Figure 3The sliding arm 9 is driven by the gas to slide downward along the inclined part of the side arm 12, and the anti-slip pad 21 is squeezed, which causes the upper end of the pressure rod 23 to squeeze the first spring 22, so that the corresponding lower end of the locking rod 24 is locked into the slot 25, which hinders the relative movement of the sliding arm 9 and the inclined part of the side arm 12. This makes it easier to determine the position of the brake pad 4 near the wheel, and makes it easier to design the length of the part of the connecting seat 7 connected to the storage box 3, so that the brake wheel 6 wheel section extends into the inside of the rail.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-derailment emergency brake device for an electric passenger car, comprising a top plate, a connecting seat being fixed to the lower side of the top plate, characterized in that: The front side of the connecting base is fixedly provided with a linear array camera, both sides of the connecting base are provided with an extension arm structure, the lower side of the top plate is fixedly provided with a gas storage tank at the rear side of the connecting base, the sides of the two extension arm structures away from the connecting base are outwardly splayed and obliquely downward, the outer sides of the lower ends of the two extension arm structures are provided with sliding arms, and the inner bottom walls of the sliding arms are fixedly provided with second springs between the lower ends of the extension arm structures; The gas storage tank is connected with an electromagnetic valve through a pipeline, the electromagnetic valve is communicated with the sliding arms through the extension arm structure relative to the gas outlet interface of the gas storage tank, the lower ends of the sliding arms are fixedly provided with storage boxes, and the interiors of the two storage boxes are communicated; The two storage boxes are parallelly and symmetrically arranged on the two sides of the top plate, the two storage boxes are slidably connected with inner baffles on the sides away from each other, the inner baffles and the storage boxes are in a funnel-shaped gap, the inner baffles are fixedly provided with connecting shafts on the sides opposite to the other sides of the funnel-shaped gap, the other ends of the connecting shafts are fixedly provided with brake pads, the brake pads are slidably arranged on the side walls on the sides away from each other of the two storage boxes, the upper and lower gap portions of the funnel shape formed by the cooperation of the inner baffles and the storage boxes are respectively filled with carbonyl iron powder and high-expansion alloy balls, and a blocking net is arranged on the bottom of the high-expansion alloy balls. The lower side of the storage box is fixedly provided with a connecting base in communication, the connecting base is threadedly connected with an adjusting knob on the side towards the connecting base, one end of the adjusting knob in the connecting base is rotatably connected with a first grinding wheel, and the side of the connecting base away from the connecting base is rotatably connected with a brake wheel, and the other end of the brake wheel in the connecting base is fixedly provided with a second grinding wheel. The brake wheel comprises an axle segment inserted into the connecting base and fixedly provided with the second grinding wheel and a wheel segment in the shape of a wheel, the axle segment and the wheel segment are fixedly connected, and the wheel segment is located at the side of the storage box away from the connecting base. The axle segment of the brake wheel is fixedly provided with a fixed plate on the inner side of the connecting base, the axle segment of the brake wheel is provided with an air inlet between the fixed plate, and the wheel segment of the brake wheel is provided with an air outlet hole corresponding to the air inlet.

2. An emergency brake device for preventing derailment of an electric passenger car according to claim 1, characterized in that: The extension arm structure comprises a motor, a screw rod, a guide cylinder, a connecting plate and a side arm, the motor is fixedly arranged in the connecting base and fixedly provided with a second gear at the output end, the screw rod is rotatably connected to the rear part of the connecting base, the outer side of the screw rod is fixedly provided with a first gear engaged with the second gear, the guide cylinder is fixedly connected to the side of the connecting base towards the storage box, the side arm comprises a horizontal part and an inclined part outwardly splayed and obliquely downward, the horizontal part of the side arm is slidably connected into the interior of the guide cylinder, the rear side of the guide cylinder is provided with a sliding groove, the inner side of the connecting plate is slidably connected with the sliding groove and fixedly connected with the horizontal part of the side arm at one end in the guide cylinder, the connecting plate is threadedly connected with the screw rod, and the sliding arm sleeve is arranged on the outer side of the inclined part of the side arm.

3. An emergency brake device for preventing derailment of an electric passenger car according to claim 2, characterized in that: The interior of the side arm is provided with an air passage, one end of the air passage is connected with the electromagnetic valve pipe, and the other end is in communication with the interior of the sliding arm, and the air passage of the inclined part of the side arm comprises a one-way valve allowing one-way flow to one side of the sliding arm.

4. An emergency brake device for preventing derailment of an electric passenger car according to claim 3, wherein: The gas in the gas storage tank is pressurized and filled according to the volume ratio of oxygen and air being 1:1.5, and the internal gas pressure is 0.8-1.2 MPa.

5. An emergency brake device for preventing derailment of an electric passenger car according to claim 4, wherein: The sliding arm is internally fixed with a sealing ring at one side away from the storage box, and the sealing ring is sleeved outside the side arm inclined part.

6. An emergency brake device for preventing derailment of an electric passenger car according to claim 5, wherein: The sliding arm is fixed with a clamping frame sleeved outside the side arm inclined part at one end away from the storage box, the upper and lower sides of the side arm inclined part are rotationally connected with a rotation pressure rod, the lower end of the rotation pressure rod is fixed with a clamping rod, the lower end of the side arm inclined part is provided with a clamping groove matched with the clamping rod, and the inside of the clamping frame is fixed with a first spring for pressing the upper end of the rotation pressure rod to the side arm inclined part.

7. An emergency brake device for preventing derailment of an electric passenger car according to claim 6, wherein: The included angle between the upper and lower sides of the side arm inclined part is 15°, and the upper end of the rotation pressure rod is fixed with an anti-skid pad on the side facing the side arm inclined part.

8. An emergency brake device for preventing derailment of an electric passenger car according to claim 7, wherein: The inside of the connecting seat is provided with a data processing module and a storage battery, and the motor, the linear array camera, the electromagnetic valve and the storage battery are electrically connected with the data processing module.

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