CN116446314B

CN116446314B - Intelligent anti-collision railway height limiting protection frame

Info

Publication number: CN116446314B
Application number: CN202310718625.0A
Authority: CN
Inventors: 祝仰敏; 颜超; 卜令晨; 马鹏飞; 张亚聪; 赵佳莹
Original assignee: Ji'nan Railway Science And Technology Development Co ltd
Current assignee: Ji'nan Railway Science And Technology Development Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-08-15
Anticipated expiration: 2043-06-16
Also published as: CN116446314A

Abstract

The invention discloses an intelligent anti-collision railway height limiting protective frame, which relates to the technical field of railway height limiting frames and aims at solving the technical problem of how to improve the anti-collision protective effect on a railway bridge. The invention can improve the anti-collision protection effect of the height limiting frame on the railway bridge.

Description

Intelligent anti-collision railway height limiting protection frame

Technical Field

The invention relates to the technical field of railway height limiting frames, in particular to an intelligent anti-collision railway height limiting protective frame.

Background

The railway height limiting frame is a steel structural member erected on two sides of a railway bridge and is used for warning vehicles, preventing the vehicles from colliding with the railway bridge, guaranteeing railway operation safety and ensuring national safety of railway safety matters.

As shown in fig. 1, the current height limiting frame 1 includes two concrete bases 11 provided on a road, upright posts 12 provided on the two concrete bases 11, diagonal braces 13 for supporting the upright posts 12, and a cross beam 14 provided on top of the two upright posts 12 and connecting the two upright posts 12. When the vehicle brakes not timely and collides with the height limiting frame 1, the strength of the height limiting frame 1 is insufficient to force the vehicle to stop, the inertia of the vehicle is easy to enable the vehicle to continuously collide with the railway bridge, and if the railway bridge is seriously damaged, the railway operation is seriously affected.

Therefore, how to improve the anti-collision protection effect of the height limiting frame on the railway bridge is a technical problem to be solved at present.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the intelligent anti-collision railway height limiting protective frame, which can improve the anti-collision protection effect of the height limiting frame on a railway bridge.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides an intelligence anticollision railway limit for height protection frame, includes locates limit for height frame on the road, locates detection module and control module on the limit for height frame, locates the mud pit on the road, is used for sheltering from the mechanism that shelters from of mud pit, and the mud pit is located limit for height frame's the place ahead, when control module received the information that limit for height frame that detection module sent received the striking, control module control sheltered from the open mud pit of mechanism.

Further, shelter from the mechanism and include shielding plate and shelter from the telescopic link, the mud pit all is equipped with first rotation seat in perpendicular to road extending direction's pithead both sides, rotates the tip rotation of seat and shielding plate and is connected, and the bottom surface of shielding plate is equipped with the connecting seat, and the mud pit all is equipped with the second at perpendicular to road extending direction's both sides wall and rotates the seat, and the second rotates the seat and shelter from the bottom rotation of telescopic link and be connected, and the top and the connecting seat rotation of shelter from the telescopic link are connected, works as control module receives the detection module sends the limit for height frame receives the information of striking, and control module control shelters from the telescopic link extension and jack-up shielding plate upwards for the shielding plate uses first rotation seat to rotate to open the vertical state of mud pit from the horizontality of shelter from the mud pit.

Further, all the side walls of the mud pit are vertically arranged.

Further, the height limiting frame comprises two concrete bases arranged on the road, upright posts arranged on the two concrete bases, inclined struts used for supporting the upright posts, and a cross beam arranged at the top of the two upright posts and connected with the two upright posts, wherein the cross beam is provided with the detection module, and the inclined struts are provided with the control module.

Further, the inside of concrete base is equipped with the concrete chamber, and the top of concrete base is equipped with the manhole that is used for with the concrete chamber intercommunication and is used for sheltering from the door plant of manhole, and the concrete intracavity is equipped with the center post, and the cover is equipped with the counter weight roller on the center post, the inside of stand is equipped with the stand chamber that is used for with the concrete chamber intercommunication, the both ends of crossbeam all are equipped with the connecting rope, and the connecting rope twines on the counter weight roller after passing the stand chamber in the one end of keeping away from the crossbeam, and the both ends of crossbeam all are connected with the stand through locking mechanism, works as control module control locking mechanism releases the locking state of crossbeam and stand when detection module sends the limit for height frame receives the information of striking.

Further, locking mechanism includes locking seat and locking telescopic link, two the lateral wall of stand all is equipped with the locking seat, is equipped with the locking telescopic link on the locking seat, and the lateral wall of two stands all is equipped with the stand jack, the both ends of crossbeam all are equipped with the fixing base, the fixing base with the stand chamber is pegged graft and is cooperated, is equipped with fixed jack on the fixing base, and when locking mechanism is in the locking state, the output of locking telescopic link inserts stand jack, fixed jack in proper order, and when locking mechanism released the locking state, the output of locking telescopic link was followed fixed jack and is withdrawn.

Further, the top threaded connection of center post has the screw rod, and the top of screw rod is equipped with the blocking lever.

Further, the road height limiting device also comprises a prompt screen arranged on the road side, wherein the prompt screen is arranged on the rear side of the height limiting frame, and when the control module receives the information that the height limiting frame is impacted and sent by the detection module, the control module controls the prompt screen to warn the rear vehicle.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, when the vehicle brakes untimely, the height limiting frame is impacted, and the vehicle continues to run forwards under the action of inertia, the vehicle can directly enter the mud pit in an open state, and the vehicle entering the mud pit can sink into the mud pit, so that the vehicle is prevented from going forwards continuously. If the driver driving the vehicle increases the throttle, the tire speed of the vehicle increases, which will cause the vehicle to sink deeper, further preventing the vehicle from proceeding. Therefore, the invention can prevent the railway bridge from being impacted and improve the anti-collision protection effect on the railway bridge.

2. Besides the fact that the vehicles with untimely braking can sink into the mud pit, the vehicles which normally run can sink into the mud pit after entering the mud pit, the vehicles are stopped forcefully, and the anti-collision protection effect on the railway bridge is further improved.

3. When the vehicle rushes into the mud pit, the mud pit can not only prevent the vehicle from advancing, but also buffer the vehicle, reduce the risk of damage to the vehicle and the risk of injury to personnel in the vehicle, and improve the safety.

4. Unexpectedly, the shielding mechanism not only can shield the mud pit, but also can prevent the mud in the mud pit from being sputtered outwards so as to maintain the road environment. Specifically, when the shielding mechanism opens the mud pit, the shielding plate in the shielding mechanism is in a vertical state, so that when the vehicle falls into the mud pit, the soil splashed from the mud pit can be blocked by the shielding plate in the vertical state; when the shielding mechanism shields the mud pit, the shielding plate is restored to a horizontal state, and soil sputtered onto the shielding plate can be hidden in the mud pit along with horizontal reset of the shielding plate. Therefore, the road cleaning device is beneficial to keeping the road sanitation, reducing the strength of road cleaning and facilitating maintenance.

5. It is also unexpected that because the shielding plate in the shielding mechanism is in a vertical state when the shielding mechanism opens the mud pit, the shielding plate in the vertical state can prevent the vehicle in the mud pit from rushing out from both sides of the road, reducing the risk of escape of the vehicle.

6. According to the invention, by vertically arranging all the side walls of the mud pit, the difficulty of flushing the mud pit by the vehicle can be increased, and the risk of escaping of the vehicle can be further reduced.

7. According to the invention, through the structures such as the upright post, the counterweight roller, the connecting rope and the locking mechanism, when the cross beam in the height limiting frame is impacted by a vehicle, the locking mechanism is controlled to release the locking state of the cross beam and the upright post, and the vehicle pushes the cross beam to move forward along with the advancing of the vehicle.

8. Unexpectedly, because the cross beam can be pushed by the vehicle to be separated from the stand column, the stand column and the diagonal bracing are prevented from being pulled and damaged due to the driving of the cross beam, and the protection effect on the stand column and the diagonal bracing is improved, so that the cross beam can be partially replaced when the height limiting frame is maintained, and compared with the replacement of the whole height limiting frame, the maintenance cost is saved.

9. It is also unexpected that because the connecting rope is wound on the counter weight roller at the end far from the cross beam, the connecting rope can be prevented from being scattered and distributed in the concrete cavity, which is beneficial to reducing the occupied space of the connecting rope, saving the space of the concrete cavity, further saving the volume of the concrete base and further saving the cost.

10. According to the invention, the control module controls the prompting screen to warn the rear vehicle when the control module receives the information of the collision of the height limiting frame sent by the detection module, so that the collision of the rear vehicle to the vehicle which is in the mud pit in front is prevented, and the risk of secondary accidents is reduced.

Drawings

FIG. 1 is a perspective view of a height-limiting frame in the background art;

FIG. 2 is a perspective view of a height limiting protective frame for an intelligent anti-collision railway in accordance with example 1;

FIG. 3 is a second perspective view of the intelligent anti-collision railway height limiting protection frame of the embodiment 1;

FIG. 4 is a perspective view III of an intelligent anti-collision railway height limiting protective frame of the embodiment 1;

FIG. 5 is a top view of an intelligent anti-collision railway height limiting protective frame of example 1;

FIG. 6 is a cross-sectional view at A-A in FIG. 5;

FIG. 7 is a cross-sectional view at B-B in FIG. 5;

FIG. 8 is a first state diagram of FIG. 7;

FIG. 9 is a second state diagram of FIG. 7;

FIG. 10 is a perspective view of a height limiting frame for an intelligent anti-collision railway in accordance with example 2;

FIG. 11 is an enlarged view of a portion of FIG. 10 at C;

FIG. 12 is a perspective view of a height limiting frame for an intelligent anti-collision railway in accordance with example 2;

FIG. 13 is a front view of an intelligent anti-collision rail height limiting protective frame of example 2;

fig. 14 is a partial enlarged view at D in fig. 13;

FIG. 15 is a state change diagram of FIG. 14;

fig. 16 is a right side view of an intelligent anti-collision railway height limiting protective frame according to embodiment 3.

In the figure:

1-a height-limiting frame,

11-concrete foundation, 111-concrete cavity, 1111-center column, 11111-screw hole, 11112-screw rod, 11113-blocking rod, 1112-counterweight roller, 112-manhole, 113-door plate, 114-bolt,

12-upright posts, 121-upright post cavities, 122-upright post jacks,

13-a diagonal brace, which is used for supporting the bicycle,

14-a cross beam, 141-a connecting rope, 142-a fixed seat, 1421-a fixed jack,

a 2-detecting module for detecting the position of the object,

a 3-a control module, which is used for controlling the control module,

4-mud pit, 41-first rotating seat, 42-second rotating seat,

5-shielding mechanism, 51-shielding plate, 511-connecting seat, 52-shielding telescopic rod,

6-locking mechanism, 61-locking seat, 62-locking telescopic rod,

7-a prompt screen.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1:

an intelligent anti-collision railway height limiting protective frame is shown in figures 2-4 and comprises a height limiting frame 1 arranged on a road. The height limiting frame 1 comprises two concrete bases 11 arranged on a road, upright posts 12 arranged on the two concrete bases 11, diagonal braces 13 used for supporting the upright posts 12, and a cross beam 14 arranged at the top of the two upright posts 12 and connected with the two upright posts 12.

An intelligent anti-collision railway height limiting protective frame is shown in fig. 2-5, and further comprises a detection module 2 arranged on a cross beam 14, a control module 3 arranged on a diagonal brace 13, a mud pit 4 (mud in the mud pit 4 is not shown) arranged on a road, and a shielding mechanism 5 for shielding the mud pit 4. The mud pit 4 is arranged in front of the height limiting frame 1, and the front of the height limiting frame 1 refers to one side of the height limiting frame 1, which is close to a railway bridge.

As shown in fig. 2 to 5, the shielding mechanism 5 includes a shielding plate 51 and a shielding telescopic rod 52. The shutter release lever 52 may be a cylinder. The mud pit 4 is provided with a first rotating seat 41 at two sides of a pit mouth perpendicular to the extending direction of a road, the first rotating seat 41 is rotationally connected with the end part of the shielding plate 51, the bottom surface of the shielding plate 51 is provided with a connecting seat 511, the two side walls perpendicular to the extending direction of the road are provided with a second rotating seat 42, the second rotating seat 42 is rotationally connected with the bottom of the shielding telescopic rod 52, and the top of the shielding telescopic rod 52 is rotationally connected with the connecting seat 511.

When the detection module 2 does not detect that the height limiting frame 1 is impacted, the control module 3 controls the shielding telescopic rod 52 to be in a shortened state, as shown in fig. 9, at this time, the shielding plate 51 is in a horizontal state, the pit mouth of the mud pit 4 is shielded by the shielding plate 51 in the horizontal state, and the periphery of the shielding plate 51 is supported by the periphery of the pit mouth of the mud pit 4, so that the shielding plate 51 is prevented from sinking.

When the detection module 2 detects that the height limiting frame 1 is impacted, the control module 3 receives the information that the height limiting frame 1 sent by the detection module 2 is impacted, and the control module 3 controls the shielding telescopic rod 52 to extend, as shown in state changes from fig. 9 to 8 to fig. 7, the extending shielding telescopic rod 52 jacks up the shielding plate 51 upwards, so that the shielding plate 51 rotates upwards with the first rotating seat 41 as a rotation center, and the shielding plate 51 rotates from a state of shielding the mud pit 4 to a state of opening the mud pit 4. When the shielding telescopic rod 52 is extended to the longest, the shielding plate 51 is turned to the vertical state, as shown in fig. 7.

When the vehicle brakes untimely, the height limiting frame 1 is impacted, and the vehicle continues to run forwards under the action of inertia, the vehicle can directly enter the mud pit 4 in an open state, and the vehicle entering the mud pit 4 can sink into the soil of the mud pit 4, so that the vehicle is prevented from going forwards. If the driver driving the vehicle increases the throttle, the tire speed of the vehicle increases, which will cause the vehicle to sink deeper, further preventing the vehicle from proceeding. Therefore, the railway bridge is prevented from being impacted, and the anti-collision protection effect on the railway bridge is improved.

Besides, vehicles with untimely braking can sink into the mud pit 4, vehicles which normally run can sink into the mud pit 4 after entering the mud pit 4, and the vehicles are forcibly stopped, so that the anti-collision protection effect on the railway bridge is further improved.

In addition, when the vehicle rushes into the mud pit 4, the mud pit 4 can not only prevent the vehicle from advancing, and earth in the mud pit 4 can also buffer the vehicle, so that the risk of damage to the vehicle is reduced, the risk of injury to personnel in the vehicle is reduced, and the safety is improved.

Further, since the shielding plate 51 in the shielding mechanism 5 is in the vertical state when the shielding mechanism 5 opens the pit 4, earth splashed from inside the pit 4 can be blocked by the shielding plate 51 in the vertical state when the vehicle is trapped in the pit 4; when the shielding mechanism 5 shields the mud pit 4, the shielding plate 51 is restored to the horizontal state, and the earth sputtered onto the shielding plate 51 can be hidden in the mud pit 4 along with the horizontal reset of the shielding plate 51. Therefore, the road cleaning device is beneficial to keeping the road sanitation, reducing the strength of road cleaning, facilitating maintenance and bringing unexpected technical effects.

In addition, since the shielding plate 51 in the shielding mechanism 5 is in the vertical state when the shielding mechanism 5 opens the mud pit 4, the shielding plate 51 in the vertical state can prevent the vehicle in the mud pit 4 from rushing out from both sides of the road, reducing the risk of escape of the vehicle.

Further, as shown in fig. 6-7, all the side walls of the mud pit 4 are arranged vertically. The vertical mud pit 4 lateral wall that sets up can increase the vehicle and dash out the degree of difficulty of mud pit 4, is favorable to further reducing the risk that the vehicle escaped.

Example 2:

this example 2 is a further improvement over example 1:

as shown in fig. 10 to 12, a concrete cavity 111 is provided inside the concrete base 11, and a manhole 112 for communicating with the concrete cavity 111 and a door panel 113 for shielding the manhole 112 are provided on the top of the concrete base 11. Door panel 113 may be secured to the top of concrete foundation 11 by bolts 114.

When access to the concrete cavity 111 is required, the screw for fixing the door panel 113 may be unscrewed, and the door panel 113 may be moved away to expose the manhole 112, and a worker may access the concrete cavity 111 from the manhole 112.

As shown in fig. 11, a center column 1111 is provided in the concrete chamber 111, and a weight roller 1112 is provided around the center column 1111, and the weight roller 1112 is rotatable around the center column 1111. The counterweight roller 1112 can employ a heavier roller body; the counterweight roller 1112 may also be a hollow housing with a counterweight therein that can be made of stone, concrete, or the like to increase the resistance to rotation of the counterweight roller 1112.

As shown in fig. 14, the column 12 is provided with a column chamber 121 for communicating with the concrete chamber 111, and both ends of the cross beam 14 are provided with connecting ropes 141, and as shown in fig. 11, the connecting ropes 141 are wound around the weight roller 1112 after passing through the column chamber 121 at one end far from the cross beam 14.

As shown in fig. 14 and 15, both ends of the cross member 14 are connected to the column 12 by the locking mechanism 6. The locking mechanism 6 includes a locking seat 61 and a locking telescopic rod 62. The outer side walls of the two upright posts 12 are respectively provided with a locking seat 61, the locking seats 61 are provided with locking telescopic rods 62, and the locking telescopic rods 62 can be oil cylinders or air cylinders or electric push rods. The side walls of the two upright posts 12 are provided with upright post insertion holes 122, the two ends of the cross beam 14 are provided with fixing seats 142, the fixing seats 142 are in plug-in fit with the upright post cavities 121, and the fixing seats 142 are provided with fixing insertion holes 1421.

When the detection module 2 does not detect that the height-limiting frame 1 is impacted, the control module 3 controls the locking mechanism 6 to maintain the locked state of the cross beam 14 and the upright 12. When the control module 3 receives the information that the height limiting frame 1 sent by the detection module 2 is impacted, the control module 3 controls the locking mechanism 6 to release the locking state of the cross beam 14 and the upright post 12.

As shown in fig. 14, when the locking mechanism 6 is in the locked state, the output end of the locking telescopic rod 62 is sequentially inserted into the column insertion hole 122 and the fixing insertion hole 1421, so that the fixing bases 142 at two ends of the beam 14 are firmly inserted into the column cavity 121 of the column 12, and the beam 14 and the column 12 are fixedly connected together.

As shown in fig. 15, when the locking mechanism 6 is in the unlocked state, the output end of the locking telescopic rod 62 is withdrawn from the fixing insertion hole 1421, and at this time, the fixing bases 142 at the two ends of the cross beam 14 can be separated from the column cavity 121 under the action of the vehicle collision, so that the cross beam 14 and the column 12 are separated. As the vehicle advances, the vehicle pushes the cross beam 14 to move forward, and as the cross beam 14 is connected with the counterweight roller 1112 through the connecting rope 141, the weight of the counterweight roller 1112 increases the loose resistance of the connecting rope 141, and then increases the forward resistance of the cross beam 14, and further increases the forward resistance of the vehicle, thereby being beneficial to preventing the vehicle from striking the railway bridge and further improving the anti-collision protection effect on the railway bridge.

When the connection rope 141 needs to be restored, the manhole 112 may be opened to allow a worker to enter the concrete cavity 111 to reversely rotate the balance weight roller 1112, and the connection rope 141 is rewound on the balance weight roller 1112.

Unexpectedly, because the cross beam 14 can be pushed by the vehicle to be separated from the upright post 12, the upright post 12 and the diagonal support 13 are prevented from being pulled and damaged by the driving of the cross beam 14, which is beneficial to improving the protection effect on the upright post 12 and the diagonal support 13, so that the cross beam 14 can be partially replaced when the height limiting frame 1 is maintained, and the maintenance cost is beneficial to saving compared with the replacement of the whole height limiting frame 1.

It is also unexpected that since the connection rope 141 is wound around the weight roller 1112 at an end far from the cross beam 14, the connection rope 141 can be prevented from being scattered in the concrete cavity 111, which is advantageous in reducing the occupied space of the connection rope 141, in saving the space of the concrete cavity 111, and thus in saving the volume of the concrete base 11, and thus in saving the cost.

Further, as shown in fig. 11, a screw hole 11111 is provided at the top end of the central column 1111, a screw rod 11112 is screwed into the screw hole 11111, and a blocking rod 11113 is provided at the top end of the screw rod 11112. When the screw 11112 is screwed out of the screw hole 11111, the weight roller 1112 fitted around the center pole 1111 is no longer blocked by the blocking rod 11113, and the weight roller 1112 can be lifted from the center pole 1111. When the screw 11112 is screwed into the screw hole 11111, the weight roller 1112 sleeved on the center column 1111 can be blocked by the blocking rod 11113, so that the weight roller 1112 is prevented from moving up along the center column 1111 when the weight roller 1112 is loosely connected with the rope 141 in a rotating manner, and the stability of the weight roller 1112 is improved.

Example 3:

this example 3 is a further improvement over example 1 or example 2:

the detection module 2 in embodiment 1 or embodiment 2 may employ a tachometer sensor. In embodiment 1, when the speed detected by the speed sensor exceeds the set speed of the control module 3, the control module 3 determines that the height-limiting frame 1 is impacted, and the control module 3 further controls the shielding telescopic rod 52 in the shielding mechanism 5 to extend, so that the shielding mechanism 5 opens the mud pit 4. In embodiment 2, the control module 3 controls the extension of the shade telescopic rod 52 and also controls the shortening of the lock telescopic rod 62 in the lock mechanism 6 so as to release the locked state of the pillar 12 and the cross member 14.

Alternatively, the detection module 2 in embodiment 1 or embodiment 2 may employ a collision sensor. In embodiment 1, when the degree of collision detected by the collision sensor exceeds the set value of the control module 3, the control module 3 determines that the height-limiting frame 1 is impacted, and the control module 3 further controls the shielding telescopic rod 52 in the shielding mechanism 5 to extend, so that the shielding mechanism 5 opens the mud pit 4. In embodiment 2, the control module 3 controls the extension of the shade telescopic rod 52 and also controls the shortening of the lock telescopic rod 62 in the lock mechanism 6 so as to release the locked state of the pillar 12 and the cross member 14.

In addition, the control module 3 is connected with the monitoring background through the wireless communication module, when the control module 3 judges that the height limiting frame 1 is impacted, the control module 3 sends an alarm to the monitoring background through the wireless communication module, so that a background manager can send staff to perform field maintenance in time.

In addition, the intelligent anti-collision railway height limiting protective frame of the embodiment, as shown in fig. 16, further comprises a prompting screen 7 arranged on the road side, wherein the prompting screen 7 is arranged on the rear side of the height limiting frame 1, and the rear side of the height limiting frame 1 is the side, away from the railway bridge, of the height limiting frame 1. The warning screen 7 can be designed with a warning character of 'front not communicating', and the warning character can be arranged by adopting LEDs and the like. When the control module 3 receives the information that the height limiting frame 1 sent by the detection module 2 is impacted, the control module 3 controls the prompt screen 7 to light the warning word of 'front not open', warning the rear vehicle, preventing the rear vehicle from impacting the vehicle which is sunk into the mud pit 4 in front, and being beneficial to reducing the risk of secondary accidents.

The detection module 2 and the control module 3, the control module 3 and the shielding telescopic rod 52, the control module 3 and the locking telescopic rod 62, and the control module 3 and the prompt screen 7 can be communicated through a wired or wireless communication module.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The intelligent anti-collision railway height limiting protective frame is characterized by further comprising a detection module, a control module, a mud pit arranged on the road and a shielding mechanism for shielding the mud pit, wherein the mud pit is arranged in front of the height limiting frame, the height limiting frame comprises two concrete bases arranged on the road, upright posts arranged on the two concrete bases and diagonal braces for supporting the upright posts, and a cross beam arranged at the tops of the two upright posts and connected with the two upright posts;

the shielding mechanism comprises a shielding plate and shielding telescopic rods, wherein first rotating seats are respectively arranged on two sides of a pit opening perpendicular to the extending direction of a road, the first rotating seats are rotatably connected with the end parts of the shielding plate, connecting seats are arranged on the bottom surface of the shielding plate, second rotating seats are respectively arranged on two side walls perpendicular to the extending direction of the road, the second rotating seats are rotatably connected with the bottoms of the shielding telescopic rods, the tops of the shielding telescopic rods are rotatably connected with the connecting seats, and when the control module receives the information of impact on the height limiting frame sent by the detection module, the control module controls the shielding telescopic rods to extend and jack up the shielding plate upwards, so that the shielding plate is rotated to be in a vertical state of an open mud pit from a horizontal state of the shielding mud pit by taking the first rotating seats as rotation centers;

the inside of the concrete base is provided with a concrete cavity, the top of the concrete base is provided with a manhole and a door plate, the manhole is communicated with the concrete cavity, the door plate is used for shielding the manhole, a center column is arranged in the concrete cavity, a counter weight roller is sleeved on the center column, the inside of the column is provided with a column cavity, the column cavity is communicated with the concrete cavity, both ends of a cross beam are respectively provided with a connecting rope, one end, far away from the cross beam, of the connecting rope is wound on the counter weight roller after penetrating through the column cavity, both ends of the cross beam are connected with the column through a locking mechanism, and when the control module receives the information that the height limiting frame sent by the detection module is impacted, the control module controls the locking mechanism to release the locking state of the cross beam and the column;

the locking mechanism comprises a locking seat and a locking telescopic rod, the outer side walls of the two stand columns are respectively provided with the locking seat, the locking seat is provided with the locking telescopic rod, the side walls of the two stand columns are respectively provided with a stand column jack, the two ends of the cross beam are respectively provided with a fixing seat, the fixing seats are in plug-in fit with the stand column cavity, the fixing seats are provided with fixing jacks, when the locking mechanism is in a locking state, the output ends of the locking telescopic rod are sequentially inserted into the stand column jacks and the fixing jacks, and when the locking mechanism is in a locking state, the output ends of the locking telescopic rod withdraw from the fixing jacks.

2. The intelligent anti-collision railway height limiting protective frame of claim 1, wherein all side walls of the mud pit are vertically arranged.

3. The intelligent anti-collision railway height limiting protection frame according to claim 1, wherein a screw is connected to the top end of the central column in a threaded manner, and a blocking rod is arranged at the top end of the screw.

4. The intelligent anti-collision railway height limiting protective frame according to claim 1, further comprising a prompt screen arranged on the road side, wherein the prompt screen is arranged on the rear side of the height limiting frame, and when the control module receives the information that the height limiting frame is impacted, which is sent by the detection module, the control module controls the prompt screen to warn a rear vehicle.