Existing track to ensure driving safety device

Abstract

The present invention provides a device for ensuring driving safety on an existing track, which includes a carriage, a track, a suspension mechanism, a retractable mechanism, and a driving mechanism. The wheels at the bottom of the carriage move along the track, and there are two tracks. The suspension mechanism includes a stop arm located on both sides of each track and a support frame for the stop arm to swing. When the wheel deviates from the track, the stop arm contacts the track. The retractable mechanism is installed at the bottom of the carriage to drive the suspension mechanism to approach or move away from the track. The driving mechanism is installed between the two stop arms to adjust the distance between the two stop arms and the track. The device for ensuring driving safety on an existing track described in the present invention improves the stability of the vehicle running on the existing track by setting the suspension mechanism at the bottom of the carriage, and effectively prevents the occurrence of the carriage tipping accident; through the control of the retractable mechanism, the suspension mechanism can be moved closer to or away from the track as needed, thereby improving the adaptability and flexibility of the device.

Description

Technical Field

[0001] The invention relates to the technical field of track safety, and in particular to a device for ensuring driving safety on an existing track. Background Art

[0002] As an efficient mode of transportation, rail transportation plays an important role in modern logistics, personnel flow and workshop transportation. With the expansion of the rail network and the increase in train speed, driving safety issues are increasingly valued. In existing technologies, train dumping accidents occur from time to time, which not only affects transportation efficiency, but also may cause significant casualties and property losses. Therefore, improving the safety of train operation and reducing the occurrence of dumping accidents have become technical issues to be solved in the field of railway transportation.

[0003] In the existing technical solutions, methods such as strengthening the track structure and improving the sensitivity of the train detection system are usually adopted to improve driving safety, but these methods are often costly, require a large amount of maintenance, and have limited effects in certain complex environments; the existing anti-tilt general directly adopts two limit arms fixedly installed on the carriage, when the wheel-rail deviates on the track, the limit arms and the track come into contact, which can prevent the wheel-rail from continuing to deviate, but in this method, when the carriage tilts, the two limit arms will detach from the track and cannot prevent the vehicle from tilting, and the two limit arms cannot adjust the distance, which is easy to cause friction when encountering a bend or a slight deviation, thereby generating noise and reducing the service life of the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a device for ensuring the safety of vehicles on existing tracks, so as to solve the problem in the prior art that vehicles may tip over or deviate when running on existing tracks.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A device for ensuring driving safety on an existing track comprises a carriage, a track, a suspension mechanism, a retractable mechanism and a driving mechanism; the wheels at the bottom of the carriage move along the track, and there are two tracks; the suspension mechanism comprises a stop arm located on both sides of each track and a support frame for the stop arm to swing; the retractable mechanism is installed at the bottom of the carriage to drive the suspension mechanism to approach or move away from the track; the driving mechanism is installed between the two stop arms to adjust the distance between the two stop arms and the track.

[0007] By adopting the above technical solution, a suspension mechanism can be effectively arranged at the bottom of the carriage, and the suspension mechanism can be moved closer to or farther from the track as needed through the control of the retractable mechanism, thereby providing additional stability during the operation of the vehicle and preventing the vehicle from tipping over. The arrangement of the drive mechanism enables the barrier arm to adjust the distance from the track according to actual conditions, thereby increasing the adaptability and flexibility of the device.

[0008] Furthermore, the retracting and extending mechanism includes a first hydraulic cylinder that drives the support frame to move closer to or away from the track and a connecting rod that is rotatably connected to the piston rod of the first hydraulic cylinder; two groups of the first hydraulic cylinders are relatively arranged on the support frame, and the connecting rod rotates to abut against the piston rod of the first hydraulic cylinder.

[0009] By adopting the above technical solution, the setting of the first hydraulic cylinder allows the support frame to flexibly approach or move away from the track, and the rotation connection of the connecting rod makes the movement of the support frame smoother, thereby improving the stability and reliability of the device.

[0010] Furthermore, a guide wheel is rotatably connected to the bottom of the support frame, and two guide wheels are arranged opposite to each other and move on the track.

[0011] By adopting the above technical solution, the setting of the guide wheel allows the support frame to move smoothly on the track, reducing friction and wear and extending the service life of the device.

[0012] Furthermore, a crossbeam for installing the guide wheel is extended from the support frame, and the other end of the connecting rod is rotatably connected to the crossbeam.

[0013] By adopting the above technical solution, the setting of the crossbeam provides a stable installation platform for the guide wheel, and the rotational connection between the connecting rod and the crossbeam makes the movement of the guide wheel more flexible, thereby improving the adaptability of the device.

[0014] Furthermore, a hook is bent at the lower portion of the barrier arm toward one side of the track, and the upper portion of the barrier arm is inclined outward, and the driving mechanism is installed at the inclined portion of the two barrier arms.

[0015] By adopting the above technical solution, the design of the barrier arm enables it to better cooperate with the track, the design of the hook increases the contact area between the barrier arm and the track, and improves stability. The inclined design allows the barrier arm to more flexibly adjust the distance from the track, and the setting of the driving mechanism makes the swing of the barrier arm more precise.

[0016] Furthermore, the driving mechanism includes a second hydraulic cylinder for driving the barrier arm to swing on the support frame and an auxiliary rod for assisting the barrier arm to swing.

[0017] By adopting the above technical solution, the setting of the second hydraulic cylinder allows the barrier arm to swing flexibly on the support frame, and the setting of the auxiliary rod assists the swing of the barrier arm, thereby improving the flexibility and stability of the device.

[0018] Furthermore, a rotating block is rotatably provided at the inclined portion of the barrier arm, the auxiliary rod is inserted on the rotating block, a follower supporting the rotation of the barrier arm is provided on the support frame, and the piston rod of the second hydraulic cylinder is rotatably connected to the follower.

[0019] By adopting the above technical solution, the setting of the rotating block allows the auxiliary rod to be flexibly inserted, the setting of the follower supports the rotation of the barrier arm, and the rotating connection between the piston rod of the second hydraulic cylinder and the follower makes the swing of the barrier arm more precise and stable.

[0020] Furthermore, the follower includes a folding rod respectively rotated on the two blocking arms, a pressure seat rotated on the folding rod, and a spring supported between the pressure seat and the support frame.

[0021] By adopting the above technical solution, the setting of the folding rod allows the follower to rotate flexibly, the setting of the pressure seat supports the spring, so that the swing of the barrier arm is more stable, and the setting of the spring provides additional buffer to accelerate the swing of the swing arm.

[0022] Furthermore, one ends of the two folding rods are hinged to each other, and the other ends are rotatably connected to the two blocking arms respectively, and the pressure seat is located at the rotatable connection of the two folding rods.

[0023] By adopting the above technical solution, the mutual hinge connection of the folding rods makes the structure of the follower more compact, and the arrangement of the pressure seat makes the connection of the barrier arm more stable, thereby improving the reliability of the device.

[0024] Furthermore, a round shaft is inserted at the shaft connection of the two folding rods, the pressure seat is rotatably connected to the round shaft, a groove for the round shaft to slide is vertically arranged on the support frame, and the piston rod of the second hydraulic cylinder is rotatably connected to the round shaft.

[0025] By adopting the above technical solution, the setting of the round shaft allows the pressure seat to rotate flexibly, the setting of the groove allows the round shaft to slide, and the rotational connection between the piston rod of the second hydraulic cylinder and the round shaft makes the swing of the barrier arm more precise and stable.

[0026] In summary, the present invention includes at least one of the following beneficial technical effects:

[0027] The existing track driving safety device of the present invention improves the stability of the vehicle running on the existing track by arranging a suspension mechanism at the bottom of the car body, and effectively prevents the occurrence of dumping accidents; through the control of the retracting and releasing mechanism, the suspension mechanism can be moved close to or away from the track as needed, thereby improving the adaptability and flexibility of the device; through the arrangement of the guide wheel, the friction and wear between the support frame and the track are reduced, thereby extending the service life of the device; through the design of the barrier arm, the contact area between the barrier arm and the track is increased, thereby improving the stability, and the inclined design allows the barrier arm to more flexibly adjust the distance from the track; through the arrangement of the driving mechanism, the swing of the barrier arm is made more precise, thereby improving the flexibility and stability of the device; through the arrangement of the follower, additional buffering is provided, thereby reducing the impact, thereby improving the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] In the attached picture:

[0030] Figure 1 This is a schematic diagram of the overall structure of the device for ensuring driving safety on an existing track according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the retractable mechanism according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the lower part of the barrier arm in a separated state according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the lower portion of the barrier arm in a state of being close according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of a first hydraulic cylinder pressing down a connecting rod according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the first hydraulic cylinder retracting the connecting rod according to an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of a suspension mechanism according to an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of a driving mechanism according to an embodiment of the present invention;

[0038] Fig. 9 It is a schematic diagram of the exploded view of the driven member and the support frame according to the embodiment of the present invention.

[0039] 1. Carriage; 2. Track;

[0040] 3. Suspension mechanism; 301. Stop arm; 302. Support frame; 303. Guide wheel; 304. Crossbeam; 305. Hook;

[0041] 4. Retractable and retractable mechanism; 401. first hydraulic cylinder; 402. connecting rod; 403. rotating seat;

[0042] 5. Driving mechanism; 501. Second hydraulic cylinder; 502. Auxiliary rod; 503. Rotating block;

[0043] 504, follower; 5041, folding rod; 5042, pressure seat; 5043, spring; 5044, round shaft; 5045, groove. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0045] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0047] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0048] This embodiment relates to a device for ensuring driving safety on an existing track 2. The overall structure is as follows: Figure 1 and Figure 3 As shown, it includes a carriage 1, a track 2, a suspension mechanism 3, a retracting and extending mechanism 4, and a driving mechanism 5.

[0049] Among them, the wheels at the bottom of the carriage 1 move along the track 2, and there are two tracks 2. The suspension mechanism 3 includes a barrier arm 301 located on both sides of each track 2 and a support frame 302 for the barrier arm 301 to swing. When the wheel deviates from the track 2, the barrier arm 301 contacts the track 2. The retracting mechanism 4 is installed at the bottom of the carriage 1 to drive the suspension mechanism 3 to approach or move away from the track 2. The driving mechanism 5 is installed between the two barrier arms 301 to adjust the distance between the two barrier arms 301 and the track 2.

[0050] It is worth mentioning that the wheels and tracks 2 are common train equipment in the prior art. The suspension mechanism 3 is semi-enclosed on the top and both sides of the track 2. When the wheel deviates, the suspension mechanism 3 can prevent the wheel from leaving the track 2. The retracting mechanism 4 is located above the track 2, driving the suspension mechanism 3 to approach or move away from the track 2, ensuring the flexibility of the suspension mechanism 3 when used. For example, when encountering a straight track 2, the suspension mechanism 3 can be driven to rise, and when encountering a curved track 2, the suspension mechanism 3 can be driven to fall to the track 2. The retracting mechanism 4 and the wheels are arranged horizontally to ensure that the suspension mechanism 3 can accurately fall to the track 2.

[0051] In addition, two groups of retractable mechanisms 4 and suspension mechanisms 3 are arranged opposite to each other at the bottom of the car 1, that is, they are respectively arranged on the top of the two tracks 2. In this way, no matter which side the car 1 deviates to, it can be blocked in time. The two blocking arms 301 are located on both sides of the track 2. When deviation occurs, the blocking arms 301 contact the sides of the track 2, which can prevent the wheels from continuing to deviate. The middle part of the blocking arm 301 is rotatably connected to the support frame 302. The driving mechanism 5 is installed on the upper part of the blocking arm 301. The lower part of the blocking arm 301 is located on both sides of the track 2. The driving mechanism 5 drives the two blocking arms 301 to swing on the support frame 302, thereby adjusting the distance between the blocking arms 301 and the track 2, so that the wheels are blocked by the blocking arms 301 after deviating to the set distance.

[0052] Based on the above overall introduction, the existing track 2 of this embodiment ensures an exemplary structure of the driving safety device, such as Figure 2 As shown, the retracting and extending mechanism 4 includes a first hydraulic cylinder 401 for driving the support frame 302 to approach or move away from the track 2, and a connecting rod 402 rotatably connected to the piston rod of the first hydraulic cylinder 401. Two groups of first hydraulic cylinders 401 are relatively arranged on the support frame 302, and the connecting rod 402 rotates to abut against the piston rod of the first hydraulic cylinder 401.

[0053] It should be noted that, in order to facilitate the installation of the first hydraulic cylinder 401, a rotating seat 403 can be installed at the bottom of the car 1, the cylinder seat rotating shaft of the first hydraulic cylinder 401 is connected to the rotating seat 403, and the piston rod of the first hydraulic cylinder 401 is rotatably connected to the support frame 302. The support frame 302 is driven to rise and fall by the extension and contraction of the first hydraulic cylinder 401. After the support frame 302 rises, the blocking arm 301 is separated from the track 2. After the support frame 302 descends, it fits with the track 2. The two blocking arms 301 are located on both sides of the track 2. When the support frame 302 and the track 2 fit together, the piston rod of the first hydraulic cylinder 401 continues to descend. At this time, the connecting rod 402 rotates until it abuts against the piston rod of the first hydraulic cylinder 401. Due to the setting of the connecting rod 402, the angle between the two first hydraulic cylinders 401 is opened to form a triangle. Since the car 1 will generate forward power when moving, and resistance will be generated between the track 2 and the support frame 302, when the two first hydraulic cylinders 401 are in a triangular support state, the strength can be improved to avoid damage caused by deformation due to resistance when the car 1 moves. When the first hydraulic cylinder 401 is retracted, the connecting rod 402 and the first hydraulic cylinder 401 rotate to be parallel to ensure that the support frame 302 has a certain movable distance.

[0054] As a preferred example, Figure 5 and Figure 6 As shown, the bottom of the support frame 302 is rotatably connected with a guide wheel 303, two guide wheels 303 are arranged oppositely and move on the track 2, a crossbeam 304 is extended on the support frame 302 for installing the guide wheel 303, and the other end of the connecting rod 402 is rotatably connected to the crossbeam 304. Specifically, after the first hydraulic cylinder 401 drives the support frame 302 to descend, it will fit with the track 2. The setting of the guide wheel 303 ensures that the support frame 302 will not rub against the track 2 after it descends, and can assist the support frame 302 to move on the track 2. The setting of the first hydraulic cylinder 401 can adapt to the distance between different carriages 1 and the track 2, and improve adaptability. The two wheels and the two blocking arms 301 are cross-shaped, ensuring that the two blocking arms 301 are always located on both sides of the track 2, and the two wheels always move on the track 2. The setting of the crossbeam 304 facilitates the installation of the guide wheel 303 and the connection of the connecting rod 402, ensuring that the first hydraulic cylinder 401 is not affected by the support frame 302 when rotating, and the connecting rod 402 has a certain rotation space.

[0055] As a preferred example, Figure 3 , Figure 4 and Figure 7As shown, in this embodiment, the lower portion of the barrier arm 301 is bent toward one side of the track 2 to form a hook 305 , the upper portion of the barrier arm 301 is inclined outward, and the driving mechanism 5 is installed at the inclined portion of the two barrier arms 301 . Specifically, the purpose of setting the hook 305 at the lower part of the barrier arm 301 is that when the car 1 tilts and the wheels and the track 2 are separated, the hook 305 can hook the track 2 to prevent the car 1 from tipping over. The purpose of setting the inclination of the upper part of the barrier arm 301 is to facilitate the installation of the driving mechanism 5. The barrier arm 301 is similar to the principle of a lever, with the support frame 302 as a fulcrum. The driving mechanism 5 controls the upper part of the barrier arm 301 to separate, and the hook 305 at the lower part of the barrier arm 301 will approach each other. When the car 1 tilts, the hooks 305 at the lower parts of the two barrier arms 301 approach each other to ensure that the hooks 305 can hook the track 2. When the car 1 tilts, the distance between the car 1 and the track 2 becomes larger. Since the connecting rod 402 has a certain rotation space, the driving mechanism 5 can drive the upper parts of the two barrier arms 301 to separate and the lower parts to approach, thereby ensuring that the hooks 305 can hook the track 2.

[0056] As a preferred embodiment, Figure 5 , Figure 6 and Figure 8 As shown, in this embodiment, the driving mechanism 5 includes a second hydraulic cylinder 501 for driving the blocking arm 301 to swing on the support frame 302, an auxiliary rod 502 for assisting the blocking arm 301 to swing, a rotating block 503 is rotatably provided at the inclined part of the blocking arm 301, the auxiliary rod 502 is inserted on the rotating block 503, a follower 504 for supporting the rotation of the blocking arm 301 is provided on the support frame 302, and the piston rod of the second hydraulic cylinder 501 is rotatably connected to the follower 504. It should be noted that the cylinder seat of the second hydraulic cylinder 501 is rotatably connected to the cylinder seat of the first hydraulic cylinder 401, the piston rod of the second hydraulic cylinder 501 is rotatably connected to the follower 504, and the auxiliary rod 502 is horizontally arranged between the two block arms 301. When the second hydraulic cylinder 501 drives the follower 504 to move, the two block arms 301 swing, and at the same time the auxiliary rod 502 slides on the rotating block 503, and the rotating block 503 rotates with the auxiliary rod 502, thereby playing an auxiliary role. The follower 504 drives the upper part of the block arm 301 to move closer and the lower part to open. This state is achieved when the support frame 302 and the track 2 are in contact. The purpose is to ensure that when the wheel does not deviate or deviates slightly, a certain deviation space is reserved for the wheel to avoid friction between the block arm 301 and the track 2 during normal driving.

[0057] As a preferred example, Fig. 9As shown, the follower 504 of this embodiment includes a folding rod 5041 rotated on the two blocking arms 301 respectively, a pressure seat 5042 rotated on the folding rod 5041, and a spring 5043 supported between the pressure seat 5042 and the support frame 302. One ends of the two folding rods 5041 are hinged to each other, and the other ends are respectively rotatably connected to the two blocking arms 301. The pressure seat 5042 is located at the rotation connection of the two folding rods 5041. Specifically, the two folding rods 5041 are of equal length, and the second hydraulic cylinder 501 is rotatably connected to the shaft connection of the two folding rods 5041. The second hydraulic cylinder 501 can control the expansion or folding of the two folding rods 5041, and the spring 5043 can control the expansion of the two folding rods 5041. When the second hydraulic cylinder 501 extends, it pushes the two folding rods 5041 to fold, and the pressure seat 5042 pushes the spring 5043 to be compressed. At the same time, the two blocking arms 301 swing with the folding rods 5041, so that the upper part of the blocking arm 301 is close and the lower part is opened, ensuring that a certain deviation distance is reserved between the two blocking arms 301 of the track. When the second hydraulic cylinder 501 retracts, it drives the two folding rods 5041 to expand, and the spring 5043 releases the compression force, so that the upper part of the two blocking arms 301 is opened and the lower part is close, ensuring that the hook 305 hooks the track 2 when the car 1 tilts.

[0058] As a preferred embodiment, Fig. 9 As shown, a round shaft 5044 is inserted into the rotating shaft connection of the two folding rods 5041 of this embodiment, the pressure seat 5042 is rotatably connected to the round shaft 5044, a groove 5045 for the round shaft 5044 to slide is vertically arranged on the support frame 302, and the piston rod of the second hydraulic cylinder 501 is rotatably connected to the round shaft 5044. Specifically, the second hydraulic cylinder 501 drives the round shaft 5044 to rise and fall in the groove 5045, and the round shaft 5044 drives the folding rod 5041 to unfold or fold, and the round shaft 5044 can also drive the pressure seat 5042 to rise and fall, so that the spring 5043 is compressed and released. When the carriage 1 is overturned, the distance between the carriage 1 and the track 2 becomes larger, and the first hydraulic cylinder 401 and the second hydraulic cylinder 501 cannot move in time. At this time, the setting of the connecting rod 402 brings a certain degree of support frame 302. Activity space, that is to say, the support frame 302 will not move closely with the first hydraulic cylinder 401. At this time, the pressure of the spring 5043 is released, and the support frame 302 is pushed downward by the spring 5043, driving the distance between the pressure seat 5042 and the support frame 302 to increase, and the pressure seat 5042 pushes the folding rod 5041 to unfold, and the folding rod 5041 pushes the blocking arm 301 to swing, so that the upper parts of the two blocking arms 301 are opened and the lower parts are close to ensure that the hook 305 hooks the track 2 when the car 1 tilts.

[0059] The existing track 2 in this embodiment ensures the driving safety device. By setting the suspension mechanism 3 at the bottom of the car 1, the stability of the vehicle running on the existing track 2 is improved, and the occurrence of dumping accidents is effectively prevented; through the control of the retracting mechanism 4, the suspension mechanism 3 can be close to or away from the track 2 as needed, thereby improving the adaptability and flexibility of the device; through the setting of the guide wheel 303, the friction and wear between the support frame 302 and the track 2 are reduced, and the service life of the device is extended; through the design of the barrier arm 301, the contact area between the barrier arm 301 and the track 2 is increased, and the stability is improved. At the same time, the inclined design allows the barrier arm 301 to more flexibly adjust the distance from the track 2; through the setting of the driving mechanism 5, the swing of the barrier arm 301 is made more precise, thereby improving the flexibility and stability of the device; through the setting of the follower 504, additional buffering is provided, the impact is reduced, and the reliability of the device is improved.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for ensuring driving safety on an existing track, characterized in that: It comprises a carriage (1), a track (2), a suspension mechanism (3), a retractable mechanism (4) and a drive mechanism (5); The wheels at the bottom of the carriage (1) move along the tracks (2), and there are two tracks (2); The suspension mechanism (3) comprises a barrier arm (301) located on both sides of each track (2) and a support frame (302) for the barrier arm (301) to swing; The retractable mechanism (4) is installed at the bottom of the carriage (1) to drive the suspension mechanism (3) to move closer to or farther from the track (2), and the retractable mechanism (4) comprises a first hydraulic cylinder (401) for driving the support frame (302) to move closer to or farther from the track (2) and a connecting rod (402) rotatably connected to the piston rod of the first hydraulic cylinder (401); The driving mechanism (5) is installed between the two blocking arms (301) to adjust the distance between the two blocking arms (301) and the track (2); the driving mechanism (5) comprises a second hydraulic cylinder (501) for driving the blocking arms (301) to swing on the support frame (302) and an auxiliary rod (502) for assisting the blocking arms (301) to swing; a follower (504) for supporting the blocking arms (301) to rotate is arranged on the support frame (302); and a piston rod of the second hydraulic cylinder (501) is rotatably connected to the follower (504).

2. The existing track driving safety device according to claim 1, characterized in that: Two groups of the first hydraulic cylinders (401) are arranged opposite to each other on the support frame (302), and the connecting rod (402) rotates until it abuts against the piston rod of the first hydraulic cylinder (401).

3. The existing track driving safety device according to claim 1, characterized in that: The bottom of the support frame (302) is rotatably connected to a guide wheel (303), and two guide wheels (303) are arranged opposite to each other and move on the track (2).

4. The existing track driving safety device according to claim 1, characterized in that: A crossbeam (304) for mounting the guide wheel (303) is extended from the support frame (302), and the other end of the connecting rod (402) is rotatably connected to the crossbeam (304).

5. The existing track driving safety device according to claim 1, characterized in that: The lower portion of the barrier arm (301) is bent toward one side of the track (2) to form a hook (305), the upper portion of the barrier arm (301) is inclined outwards, and the driving mechanism (5) is installed at the inclined portion of the two barrier arms (301).

6. The existing track driving safety device according to claim 1, characterized in that: A rotating block (503) is rotatably arranged at the inclined portion of the barrier arm (301), and the auxiliary rod (502) is inserted into the rotating block (503).

7. The device for ensuring driving safety on an existing track according to any one of claims 1 to 6, characterized in that: The driven member (504) comprises a folding rod (5041) respectively rotating on two blocking arms (301), a pressure seat (5042) rotating on the folding rod (5041), and a spring (5043) supported between the pressure seat (5042) and the support frame (302).

8. The existing track driving safety device according to claim 7, characterized in that: One ends of the two folding rods (5041) are hinged to each other, and the other ends are rotatably connected to the two blocking arms (301), respectively. The pressure seat (5042) is located at the rotatable connection of the two folding rods (5041).

9. The device for ensuring driving safety on existing tracks according to claim 7, characterized in that: A round shaft (5044) is inserted into the rotating shaft connection of the two folding rods (5041), the pressure seat (5042) is rotatably connected to the round shaft (5044), a groove (5045) for the round shaft (5044) to slide is vertically arranged on the support frame (302), and the piston rod of the second hydraulic cylinder (501) is rotatably connected to the round shaft (5044).

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