A timed monitoring and maintenance device for highway guardrails

Abstract

The invention discloses a timed monitoring and maintenance device for a highway guardrail, which relates to the technical field of optical measurement components and comprises at least three monitoring units which are fixed on the highway guardrail at a set distance, wherein a laser transmitter and a laser receiver are respectively arranged at both ends of the monitoring unit, and wherein a detection ray emitted by a laser transmitter on one monitoring unit between two adjacent monitoring units can be received by a laser receiver on another monitoring unit, and a transmitting mechanism and a vibration triggering mechanism are fixedly connected in the monitoring unit. The invention provides a vibration triggering mechanism and a transmitting mechanism to enable the laser transmitter to emit a ray once during a collision process to monitor the deformation of the highway guardrail, and then disconnect the ray emission process to avoid the laser transmitter from emitting rays for a long time, thereby reducing energy consumption, reducing the actual working time of the device, and extending the service life of the device.

Description

Technical Field

[0001] The invention relates to the technical field of optical measuring components, in particular to a timed monitoring and maintenance device for highway guardrails. Background Art

[0002] Highway guardrails are an important part of urban transportation infrastructure. However, due to various reasons, highway guardrails are often damaged. Therefore, inspectors are required to conduct regular comprehensive inspections of highway guardrails, including deformation and damage of highway guardrails, and carry out timely repairs. When highway guardrails are hit, inspectors cannot know the impact of highway guardrails in time, and traditional manual inspections take a long time and are inefficient. Among the existing guardrail monitoring methods, publication number "CN114577133B" discloses a timed monitoring and maintenance device for highway bridge guardrails, which uses a monitoring device mounted on the guardrail of the bridge. The monitoring device can be triggered and send a signal when hit to let the maintenance personnel know the impact information, but it is obvious in the patent that the monitoring device needs to be set along the length of the guardrail to fully monitor the guardrail. In actual use, the cost is high and it is difficult to apply in practice.

[0003] To this end, the present invention proposes a monitoring device that adopts the optical detection principle. It only needs to set monitoring points intermittently at certain intervals along the length direction of the guardrail. Between consecutive monitoring points, if the guardrail is damaged, the optical measurement unit will have a position deviation, making it impossible to receive the detection signal, thereby obtaining the impact information, so as to facilitate regular maintenance of the highway guardrail. Summary of the invention

[0004] The object of the present invention is to provide a timed monitoring and maintenance device for highway guardrails to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] The present invention provides a timed monitoring and maintenance device for highway guardrails, comprising a monitoring unit, wherein the monitoring unit is arranged at intervals on the highway guardrail, a laser transmitter and a laser receiver are respectively arranged at both ends of the monitoring unit, a vibration trigger mechanism for monitoring guardrail collision is fixedly connected inside the monitoring unit, an emitting mechanism for timely activating the laser transmitter to emit rays is fixedly connected inside the monitoring unit, and a buffer mechanism is fixedly connected to the inner wall of the monitoring unit.

[0007] Furthermore, the vibration triggering mechanism includes a mounting plate fixedly connected to the inclined inside the monitoring unit, a sliding slot being provided on the mounting plate, a mounting seat being fixedly connected to one side of the mounting plate, a connecting shaft being rotatably connected through the mounting seat, a wire wheel being fixedly connected to the connecting shaft, an end of the connecting shaft extending outside the mounting seat being fixedly connected to the first pulley, a first blocking plate being slidably connected in the sliding slot, the first blocking plate extending outside the sliding slot, a second blocking plate being fixedly connected to a position of the mounting plate away from the first blocking plate, a sealing plate for timely blocking the sliding slot being rotatably connected to a side of the mounting plate away from the first blocking plate, one end of the sealing plate being fixedly connected to a hook claw, a connecting block being rotatably connected to a position of the mounting plate close to the hook claw, the connecting block being clamped with the hook claw, and a rolling ball being provided on the mounting plate between the two sealing plates.

[0008] Further, the launching mechanism includes a fixing seat fixedly connected to the inner wall of the monitoring unit, the fixing seat is arranged close to the mounting seat, a threaded rod is rotatably connected to the fixing seat, a sliding block is threadedly sleeved on the threaded rod, a connecting rod is fixedly connected to one side of the sliding block, a fixing plate is fixedly connected to the position of the monitoring unit close to the fixing seat, a sliding groove is provided on the fixing plate, a power supply conductive part is slidably connected to the fixing plate, a connecting rod is fixedly connected to the bottom end of the power supply conductive part, the connecting rod is located in the sliding groove, and one end of the connecting rod extending outside the sliding groove is fixedly connected to the connecting rod, a mounting groove is provided on the monitoring unit, an electric push rod is fixedly connected in the mounting groove, the output end of the electric push rod abuts against the connecting rod in time, a fixing cavity is provided at a position corresponding to the power supply conductive part on the monitoring unit, and a transmitter conductive column is assembled in the fixing cavity.

[0009] Furthermore, the buffer mechanism comprises support blocks fixedly connected to the inner wall of the monitoring unit at intervals, and arc blocks are fixedly connected to both ends of the support blocks, and the arc blocks abut against adjacent arc blocks.

[0010] Furthermore, one end of the threaded rod close to the first pulley is sleeved and fixedly connected with a second pulley, and a transmission belt is sleeved on the second pulley and the first pulley.

[0011] Furthermore, a groove is provided on the power supply conductive member, and the groove is plugged into the transmitter conductive column.

[0012] Furthermore, the transmitter conductive column, the power supply conductive element, the laser transmitter and the laser receiver are electrically connected.

[0013] Furthermore, one end of the mounting plate away from the wire wheel is rotatably connected to a pulley, a connecting rope is fixedly connected to the rolling ball, the connecting rope passes around the pulley and is fixedly connected to the wire wheel, and a pushing block is fixedly connected to the connecting rope.

[0014] Furthermore, both ends of the first blocking plate and the second blocking plate are fixedly connected with partitions, the second blocking plate is fixedly connected with an elastic rope, and the other end of the elastic rope is fixedly connected to the rolling ball.

[0015] Furthermore, a position of the mounting plate close to the sealing plate is slidably connected with an abutment rod which abuts against the sealing plate in due course, and the abutment rod abuts against the pushing block in due course.

[0016] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0017] The present invention provides a vibration trigger mechanism so that when a collision occurs, the laser transmitter can emit rays to complete the monitoring of the highway guardrail, thereby expanding the use range of the device and improving the monitoring range;

[0018] The vibration trigger mechanism and emission mechanism set up will cause the laser emitter to emit a ray once during the impact process to monitor the deformation of the highway guardrail, and then the ray emission process will be disconnected to avoid the laser emitter from emitting rays for a long time, thereby reducing energy consumption, reducing the actual working time of the device, and extending the service life of the device.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings in the specification, 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.

[0021] Figure 1 The monitoring unit of the present invention and the highway guardrail connection structure schematic diagram Figure 1 ;

[0022] Figure 2 The monitoring unit of the present invention and the highway guardrail connection structure schematic diagram Figure 2 ;

[0023] Figure 3 It is a schematic diagram of the internal structure of the monitoring unit of the present invention;

[0024] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0025] Figure 5 It is a schematic diagram of the connection structure between the vibration trigger mechanism and the launching mechanism of the present invention;

[0026] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0027] Figure 7 It is a partial structural schematic diagram of the vibration trigger mechanism of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the mounting plate of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the power supply conductive member of the present invention;

[0030] Fig.10 It is a schematic diagram of the connection between the first blocking plate and the sealing plate of the present invention.

[0031] In the figure:

[0032] 1. Monitoring unit; 2. Laser transmitter; 3. Laser receiver; 4. Mounting plate; 5. Sliding groove; 6. Mounting seat; 7. Connecting shaft; 8. Wire wheel; 9. First pulley; 10. First blocking plate; 11. Second blocking plate; 12. Closing plate; 13. Hook; 14. Connecting block; 15. Rolling ball; 16. Fixed seat; 17. Threaded rod; 18. Sliding block; 19. Connecting rod; 20. Fixed plate; 21. Sliding groove; 22. Power conductive part; 23. Connecting rod; 24. Mounting groove; 25. Electric push rod; 26. Fixed cavity; 27. Transmitter conductive column; 28. Support block; 29. ​​Arc block; 30. Second pulley; 31. Transmission belt; 32. Groove; 33. Pulley; 34. Connecting rope; 35. Pushing block; 36. Partition; 37. Abutting rod; 38. Elastic rope. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0034] See also Figure 1-Figure 10 The present invention provides a timed monitoring and maintenance device for highway guardrails, comprising at least three monitoring units 1 fixed on the highway guardrails at a set distance, wherein a laser transmitter 2 and a laser receiver 3 are respectively arranged at both ends of the monitoring unit 1, and wherein the detection ray emitted by the laser transmitter 2 on one monitoring unit 1 between two adjacent monitoring units 1 can be received by the laser receiver 3 on another monitoring unit 1, and a transmitting mechanism and a vibration triggering mechanism are fixedly connected inside the monitoring unit 1;

[0035] Among them, the transmitting mechanism includes a fixedly installed transmitter conductive column 27 and a slidably installed power conductive member 22. The power conductive member 22 is directional slid by the driving force of the vibration trigger mechanism to dock with the transmitter conductive column 27, so that the transmitter conductive column 27 and the power conductive member 22 are electrically connected. The vibration trigger mechanism is used to generate a driving force when the highway guardrail generates sufficient vibration. The transmitting mechanism is used to activate the laser transmitter 2 after conduction. A buffer mechanism is fixedly connected to the inner wall of the monitoring unit 1.

[0036] In the specific use process, two adjacent monitoring units 1 are set ten meters apart on the side of the highway guardrail away from the road, and the rays emitted by the laser transmitter 2 can be received by the adjacent laser receiver 3. At the same time, a positioning device (such as GPS) can be provided in the monitoring unit 1 to provide accurate position information when the guardrail is hit. When the highway guardrail is hit, the vibration trigger mechanism senses the vibration of the highway guardrail and generates corresponding actions, so that the transmitting mechanism activates the laser transmitter 2 to emit a ray. The action of the laser transmitter 2 emitting rays can be completed without hitting the monitoring unit 1, which expands the use range of the device, improves the monitoring range, and increases the activation time. The light transmitter 2 emits a ray. If the laser receiver 3 receives the ray, the impact is small and the highway guardrail is not seriously damaged. If the impact is large, the highway guardrail will be deformed greatly, so that the highway guardrail will block the ray emitted by the laser transmitter 2, or the ray emitted by the laser transmitter 2 will be offset, and the laser receiver 3 will not be able to receive the ray. This indicates that the highway guardrail has received a strong impact. The result is transmitted to the corresponding server, indicating that maintenance work needs to be performed on the highway guardrail here. During the impact, the laser transmitter 2 emits a ray once, which reduces energy consumption, reduces the actual working time of the device, and prolongs the service life of the device.

[0037] See also Figure 5-Figure 8 and Fig.10The vibration trigger mechanism includes a mounting plate 4 fixedly connected to the monitoring unit 1 and tilted, the mounting plate 4 is provided with a sliding groove 5, a mounting seat 6 is fixedly connected to one side of the mounting plate 4, a connecting shaft 7 is rotatably connected to the mounting seat 6, a wire wheel 8 is fixedly connected to the connecting shaft 7, and a first pulley 9 is fixedly connected to one end of the connecting shaft 7 extending outside the mounting seat 6, a first blocking plate 10 is slidably connected in the sliding groove 5, and the first blocking plate 10 extends outside the sliding groove 5, a second blocking plate 11 is fixedly connected to a position of the mounting plate 4 away from the first blocking plate 10, a sealing plate 12 for timely blocking the sliding groove 5 is rotatably connected to the side of the mounting plate 4 away from the first blocking plate 10, a hook 13 is fixedly connected to one end of the sealing plate 12, a connecting block 14 is rotatably connected to the mounting plate 4 near the hook 13, and the connecting block 14 is clamped with the hook 13, and a rolling ball 15 is provided between the two sealing plates 12 on the mounting plate 4.

[0038] When the highway guardrail is hit, the highway guardrail will transmit the vibration to the monitoring unit 1, and the monitoring unit 1 will vibrate violently. The hook 13 will separate from the connecting block 14, so that the sealing plate 12 can rotate and no longer block the sliding groove 5, so that the first blocking plate 10 will slide downward along the sliding groove 5 under the action of its own gravity, and the rolling ball 15 will be blocked by the support block 28 and the arc block 29 in the buffer mechanism, and is not enough to detach from the mounting plate 4 from there. Under the action of the elastic rope 38 and the rolling ball 15's own gravity, the rolling ball 15 can roll along the inclined mounting plate 4 and is finally restricted by the second blocking plate 11. The rolling of the rolling ball 15 will drive the wire wheel 8 to rotate through the connecting rope 34, and the rotation of the wire wheel 8 will drive the connecting shaft 7 to rotate, and the rotation of the connecting shaft 7 will drive the first pulley 9 to rotate.

[0039] See also Figure 4 , Figure 5 and Figure 8The launching mechanism includes a fixing seat 16 fixedly connected to the inner wall of the monitoring unit 1, the fixing seat 16 is arranged near the mounting seat 6, a threaded rod 17 is rotatably connected to the fixing seat 16, a slider 18 is threadedly sleeved on the threaded rod 17, a connecting rod 19 is fixedly connected to one side of the slider 18, a fixing plate 20 is fixedly connected to the position of the monitoring unit 1 near the fixing seat 16, a sliding groove 21 is opened on the fixing plate 20, a power supply conductive member 22 is slidably connected to the fixing plate 20, the A connecting rod 23 is fixedly connected to the bottom end of the power conductive member 22, and the connecting rod 23 is located in the slide slot 21. One end of the connecting rod 23 extending outside the slide slot 21 is fixedly connected to the connecting rod 19. An installation slot 24 is provided on the monitoring unit 1, and an electric push rod 25 is fixedly connected in the installation slot 24. The output end of the electric push rod 25 abuts against the connecting rod 23 in a timely manner. A fixed cavity 26 is provided at a position corresponding to the power conductive member 22 on the monitoring unit 1, and a transmitter conductive column 27 is assembled in the fixed cavity 26.

[0040] The first pulley 9 rotates through the transmission belt 31 to drive the second pulley 30 to rotate, the second pulley 30 rotates to drive the threaded rod 17 to rotate, the threaded rod 17 rotates to drive the slider 18 to move, the slider 18 moves to drive the connecting rod 19 to move, the connecting rod 19 moves to drive the connecting rod 23 to move, the connecting rod 23 moves to drive the power conductive member 22 to move the power conductive member 22 into the fixed cavity 26, so that the power conductive member 22 is connected to the transmitter conductive column 27, so that the laser transmitter 2 is powered on and the ray is emitted, and then the electric push rod 25 is started, and the electric push rod 25 pushes the connecting rod 23 to move in the reverse direction, and the movement of the connecting rod 23 drives the power conductive member 22 to move out of the fixed cavity 26, so that the power conductive member 22 and the emitter conductive column 27 are separated, preventing the laser emitter 2 from emitting rays for a long time, reducing the energy consumption of the laser emitter 2, and reducing the working time of the laser emitter 2, thereby extending the service life of the laser emitter 2. At the same time, when the electric push rod 25 pushes the connecting rod 23 to move in the reverse direction, contrary to the above-mentioned transmission process, the rolling ball 15 returns to the initial position, and the hook claw 13 and the connecting block 14 are re-engaged with each other.

[0041] See also Figure 3 The buffer mechanism includes support blocks 28 fixedly connected to the inner wall of the monitoring unit 1 at intervals, and arc blocks 29 are fixedly connected at both ends of the support block 28. The arc blocks 29 abut against adjacent arc blocks 29. When the guardrail at the monitoring unit 1 is hit, the monitoring unit 1 is squeezed, driving the support block 28 to move. The movement of the support block 28 drives the arc block 29 to move, thereby reducing the impact and better protecting the device.

[0042] See also Figure 5The threaded rod 17 is sleeved and fixedly connected with a second pulley 30 at one end close to the first pulley 9. A transmission belt 31 is sleeved on the second pulley 30 and the first pulley 9. When the first pulley 9 rotates, the second pulley 30 is driven to rotate through the transmission belt 31.

[0043] See also Figure 4 and Fig. 9 The power conductive member 22 is provided with a groove 32 , and the groove 32 is plugged into the transmitter conductive column 27 , so that the power conductive member 22 is better connected to the transmitter conductive column 27 .

[0044] See also Figure 5 and Figure 7 The end of the mounting plate 4 away from the reel 8 is rotatably connected to a pulley 33, and a connecting rope 34 is fixedly connected to the rolling ball 15. The connecting rope 34 passes around the pulley 33 and is fixedly connected to the reel 8. A pushing block 35 is fixedly connected to the connecting rope 34. The rolling ball 15 and the reel 8 are connected by the connecting rope 34. When the rolling ball 15 moves, it can drive the reel 8 to rotate, thereby driving the connecting shaft 7 to rotate. During the movement of the connecting rope 34, the pushing block 35 moves accordingly.

[0045] See also Figure 7 Both ends of the first blocking plate 10 and the second blocking plate 11 are fixedly connected with partitions 36, and the second blocking plate 11 is fixedly connected with an elastic rope 38, and the other end of the elastic rope 38 is fixedly connected to the rolling ball 15. The elastic rope 38 provides additional power to the rolling ball 15, so that the rolling ball 15 can roll more smoothly. The partitions 36 enable the rolling ball 15 to ensure that the rolling ball 15 moves between the partitions 36 to prevent the rolling ball 15 from rolling to other positions.

[0046] See also Figure 2 , Figure 4-Figure 6 The mounting plate 4 is slidably connected to a position close to the sealing plate 12 with an abutment rod 37 which abuts against the sealing plate 12 in time. The abutment rod 37 abuts against the pushing block 35 in time. When the connecting rope 34 moves in the opposite direction, the connecting rope 34 drives the pushing block 35 to move. The pushing block 35 abuts against the abutment rod 37 and mobilizes the abutment rod 37 to move. The movement of the abutment rod 37 drives the sealing plate 12 to rotate. The rotation of the sealing plate 12 drives the hook 13 to rotate. The hook 13 and the connecting block 14 are re-engaged with each other, so that the power supply conductive part 22 and the transmitter conductive column 27 remain separated, avoiding the power supply conductive part 22 and the transmitter conductive column 27 from being connected, so that the laser emitter 2 can emit rays for a long time.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A timed monitoring and maintenance device for highway guardrails, characterized in that: The invention comprises at least three monitoring units (1) fixed on a highway guardrail at a set distance, wherein a laser transmitter (2) and a laser receiver (3) are respectively arranged at two ends of the monitoring unit (1), and the detection radiation emitted by the laser transmitter (2) on one monitoring unit (1) between two adjacent monitoring units (1) can be received by the laser receiver (3) on another monitoring unit (1), and a transmitting mechanism and a vibration triggering mechanism are fixedly connected inside the monitoring unit (1); The transmitting mechanism comprises a fixedly mounted transmitting conductive column (27) and a slidably mounted power conductive member (22); the power conductive member (22) is subjected to a driving force of a vibration trigger mechanism to slide in a directional manner to dock with the transmitting conductive column (27), so that the transmitting conductive column (27) and the power conductive member (22) are electrically connected; the vibration trigger mechanism is used to generate a driving force when the highway guardrail generates sufficient vibration; the transmitting mechanism is used to activate the laser transmitter (2) after conduction; and a buffer mechanism is fixedly connected to the inner wall of the monitoring unit (1); The vibration trigger mechanism comprises a mounting plate (4) fixedly connected to an inclined mounting plate in the monitoring unit (1), a sliding through slot (5) being provided on the mounting plate (4), a mounting seat (6) being fixedly connected to one side of the mounting plate (4), a connecting shaft (7) being rotatably connected to the mounting seat (6), a wire pulley (8) being fixedly connected to the connecting shaft (7), a first pulley (9) being fixedly connected to one end of the connecting shaft (7) extending outside the mounting seat (6), a first blocking plate (10) being slidably connected to the sliding through slot (5), and the first blocking plate (10) extending To the outside of the sliding through groove (5), a second blocking plate (11) is fixedly connected to a position of the mounting plate (4) away from the first blocking plate (10), a sealing plate (12) is rotatably connected to a side of the mounting plate (4) away from the first blocking plate (10) for timely blocking the sliding through groove (5), one end of the sealing plate (12) is fixedly connected to a hook (13), a connecting block (14) is rotatably connected to a position of the mounting plate (4) close to the hook (13), the connecting block (14) is clamped with the hook (13), and a rolling ball (15) is provided on the mounting plate (4); The launching mechanism comprises a fixing seat (16) fixedly connected to the inner wall of the monitoring unit (1), the fixing seat (16) being arranged close to the mounting seat (6), a threaded rod (17) being rotatably connected to the fixing seat (16), a sliding block (18) being sleeved on the threaded rod (17) and being threadedly connected to the sliding block (18), a connecting rod (19) being fixedly connected to one side of the sliding block (18), a fixing plate (20) being fixedly connected to a position of the monitoring unit (1) close to the fixing seat (16), a sliding groove (21) being provided on the fixing plate (20), a power supply conductive member (22) being slidably connected to the fixing plate (20), and the power supply conductive member (22) being slidably connected to the fixing plate (20). The bottom end of the conductive member (22) is fixedly connected to a connecting rod (23), the connecting rod (23) is located in the slide slot (21), one end of the connecting rod (23) extending outside the slide slot (21) is fixedly connected to the connecting rod (19), a mounting slot (24) is provided on the monitoring unit (1), an electric push rod (25) is fixedly connected in the mounting slot (24), the output end of the electric push rod (25) is in timely contact with the connecting rod (23), a fixed cavity (26) is provided at a position on the monitoring unit (1) corresponding to the power conductive member (22), and a transmitter conductive column (27) is installed in the fixed cavity (26); The power supply conductive member (22) is provided with a groove (32), and the groove (32) is plugged into the transmitter conductive column (27); The transmitter conductive column (27), the power supply conductive element (22), the laser transmitter (2) and the laser receiver (3) are electrically connected.

2. A timed monitoring and maintenance device for highway guardrails according to claim 1, characterized in that: The buffer mechanism comprises support blocks (28) fixedly connected to the inner wall of the monitoring unit (1) at intervals, and arc blocks (29) are fixedly connected to both ends of the support block (28), and the arc blocks (29) abut against adjacent arc blocks (29).

3. A timed monitoring and maintenance device for highway guardrails according to claim 1, characterized in that: One end of the threaded rod (17) close to the first pulley (9) is sleeved and fixedly connected with a second pulley (30), and a transmission belt (31) is sleeved on the second pulley (30) and the first pulley (9).

4. A timed monitoring and maintenance device for highway guardrails according to claim 1, characterized in that: One end of the mounting plate (4) away from the wire wheel (8) is rotatably connected to a pulley (33), a connecting rope (34) is fixedly connected to the rolling ball (15), the connecting rope (34) passes over the pulley (33) and is fixedly connected to the wire wheel (8), and a pushing block (35) is fixedly connected to the connecting rope (34).

5. The timed monitoring and maintenance device for highway guardrail according to claim 1 is characterized in that: Both ends of the first blocking plate (10) and the second blocking plate (11) are fixedly connected to a partition plate (36), the second blocking plate (11) is fixedly connected to an elastic rope (38), and the other end of the elastic rope (38) is fixedly connected to the rolling ball (15).

6. A timed monitoring and maintenance device for highway guardrails according to claim 1, characterized in that: The mounting plate (4) is slidably connected to a contact rod (37) at a position close to the sealing plate (12) for timely contact with the sealing plate (12), and the contact rod (37) is timely contacted with the pushing block (35).

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