Road guardrail upright post burial depth detection device
By using an integrated displacement depth detection device that combines wire displacement and laser ranging technology, the problem of insufficient accuracy and damage in the existing technology for detecting the burial depth of highway guardrail posts has been solved. This has enabled efficient and accurate detection results, ensuring the consistency and safety of the results.
Patent Information
- Application Number
- CN202423026746.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing methods for detecting the burial depth of highway guardrail posts suffer from insufficient accuracy, are time-consuming and labor-intensive, cause damage to the roadbed and posts, and make it difficult to guarantee the consistency of the test results.
An integrated displacement deep-buried detection device is adopted, which combines wire rope displacement and laser ranging technology. The detection touch plate is driven by an electric guide rail to contact the top of the column. The encoder records the displacement distance of the wire rope, and the laser rangefinder is used to measure it to ensure the consistency of the measurement results.
It enables accurate and efficient detection of the burial depth of highway guardrail posts, ensuring that the test results meet national standards, avoiding damage to the roadbed and posts, and improving the accuracy and consistency of the test.
Smart Images
Figure CN223551089U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway engineering testing technology, specifically a device for detecting the burial depth of highway guardrail posts. Background Technology
[0002] Highway guardrail posts are known as the "last safety belt for drivers," preventing vehicles from veering off the road in accidents, cushioning impact energy, and minimizing damage. However, improper installation by construction workers can result in posts being buried at depths that do not meet national standards, reducing their impact resistance and creating potential safety hazards. Therefore, it is necessary to conduct depth testing on these posts.
[0003] Highway guardrail products must meet national standards. During the use of highway guardrail posts, different corrugated beam guardrails must be matched with guardrail posts of different heights. One type of corrugated beam guardrail is matched with a guardrail post of a certain height to ensure its safety and effectiveness. The corrugated beam guardrail that corresponds to the guardrail post height can be matched.
[0004] Currently, there are three common methods for detecting the burial depth of highway guardrail posts: The first is non-destructive testing, which uses the reflection characteristics of impact elastic waves to estimate the burial depth of the post. The advantages of this method are convenience, speed, and low cost, but its data accuracy is insufficient, with errors reaching up to 10cm. The second method is the pile extraction method, which uses a pile extraction machine to pull the post out of the soil. This method is time-consuming and labor-intensive, and it can damage the roadbed and the post itself. It also presents the problem of secondary burial depth and requires a large amount of space for machinery during the testing process. The third method involves inserting a testing rod deep into the ground on one side of the post and using a metal detector at the bottom of the rod to measure the depth of the post. However, this method can loosen the soil on the side of the post, affecting the use of the post. Utility Model Content
[0005] The purpose of this utility model is to provide a device for detecting the burial depth of highway guardrail posts, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a highway guardrail post burial depth detection device, comprising an integrated displacement burial depth detection device, wherein the integrated displacement burial depth detection device includes a burial detection support device, a wire displacement burial depth detection device located on the burial detection support device, and a displacement laser burial depth detection device.
[0007] The deep-buried detection support device includes a support pole and an electric guide rail parallel to the outer wall of the support pole. A sliding block is slidably connected to the electric guide rail. A detection touch plate is connected to the outer side of the sliding block on the side away from the drive motor of the electric guide rail. A detection placement plate is connected to the outer wall of the electric guide rail on the side away from the drive motor. An initial fixing plate is connected to the top of the electric guide rail on the side closer to the drive motor.
[0008] As a preferred embodiment of this utility model, the wire displacement deep burial detection device includes a wire fixing seat, a measuring steel wire rope, a wire box, and an encoder. The wire fixing seat is fixedly located on the outer side of one side of the detection touch plate, the wire box is located on the outer wall of one side of the initial fixed upright plate, the encoder is located on the initial fixed upright plate, one end of the measuring steel wire rope is connected to the wire fixing seat, and the other end of the measuring steel wire rope passes through the wire box and extends into the encoder.
[0009] As a preferred embodiment of this utility model, the displacement laser deep-buried detection device includes a laser rangefinder, which is located on the outer wall of one side of the initial fixed plate, and the output end of the laser rangefinder is on the same straight line as the detection touch plate.
[0010] As a preferred embodiment of this utility model, during testing, the bottom of the testing placement plate is parallel to and abuts against the ground on one side of the highway guardrail post. When the electric guide rail drives the sliding block to bring the testing touch plate abutting against the top of the highway guardrail post, the calculation is performed using the following method:
[0011] L: The overall national standard height of the guardrail posts can be determined based on the corrugated beam guardrail.
[0012] H: Detect the vertical movement distance of the detection touch panel 114 from its initial position to its final position at the top of the guardrail post;
[0013] D: The height of the guardrail post on the ground = the overall height of the national standard guardrail post - (the overall distance of the electric guide rail 112 - the vertical movement distance of the detection touch plate 114 from the initial position to the final position of the top of the guardrail post).
[0014] As a preferred embodiment of this utility model, the distance between the laser rangefinder 131 and the detection touch plate 114 is equal to the displacement distance of the measuring wire rope measured by the encoder 124.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] In response to the problems raised in the background art, the highway guardrail post burial depth detection device of this application can accurately and efficiently detect and measure the burial depth of highway guardrail posts, avoid the defects existing in the prior art, and can quickly and accurately determine the burial depth of guardrail posts to ensure that they meet national standards, thereby ensuring highway safety.
[0017] It integrates multiple detection methods, using both rope displacement detection and laser detection to ensure consistent measurement results.
[0018] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0019] Figure 1 This is a three-dimensional view of the entire utility model.
[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model.
[0021] Figure 3 This utility model Figure 2 Enlarged view of area A in the middle.
[0022] Figure 4 This utility model Figure 2 Enlarged view of area B in the middle.
[0023] Figure 5 This is a schematic diagram of the laser rangefinder of this utility model.
[0024] In the diagram: 1. Integrated displacement deep-buried detection device; 11. Deep-buried detection support device; 111. Support pole; 112. Electric guide rail; 113. Sliding block; 114. Detection touch plate; 115. Detection placement plate; 116. Initial fixed plate; 12. Pull-wire displacement deep-buried detection device; 121. Pull-wire fixing seat; 122. Measuring steel wire rope; 123. Pull-wire box; 124. Encoder; 13. Displacement laser deep-buried detection device; 131. Laser rangefinder. Detailed Implementation
[0025] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive. Example
[0026] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.
[0027] Please see Figure 1-5 This utility model provides a technical solution: a highway guardrail post burial depth detection device, including an integrated displacement burial depth detection device 1. The integrated displacement burial depth detection device 1 includes a burial detection support device 11, a wire displacement burial detection device 12 located on the burial detection support device 11, and a displacement laser burial detection device 13. The burial detection support device 11 includes a support rod 111 and an electric guide rail 112 parallel to the outer wall of the support rod 111. A sliding block 113 is slidably connected to the electric guide rail 112. A detection touch plate 114 is connected to the outer side of the sliding block 113 away from the drive motor. A detection placement plate 115 is connected to the outer wall of the electric guide rail 112 away from the drive motor. An initial fixing plate 116 is connected to the top of the electric guide rail 112 near the drive motor. The wire displacement burial depth detection device 12 includes a pull rope fixing seat 121, a measuring steel wire rope 122, a pull wire box 123, and an encoder 124. The pull rope fixing seat 121 is fixed on the outer side of the detection touch plate 114. The pull box 123 is located on the outer wall of the initial fixing plate 116. The encoder 124 is located on the initial fixing plate 116. One end of the measuring wire rope 122 is connected to the pull rope fixing seat 121, and the other end of the measuring wire rope 122 passes through the pull box 123 and extends into the encoder 124. During detection, the bottom of the detection placement plate 115 is parallel to and abuts against the ground on one side of the detection highway guardrail post. The displacement laser is deeply embedded. The detection device 13 includes a laser rangefinder 131, which is located on the outer wall of one side of the initial fixed plate 116. The output end of the laser rangefinder 131 is on the same straight line as the detection touch plate 114. The distance between the laser rangefinder 131 and the detection touch plate 114 is equal to the displacement distance of the measuring wire rope 122 measured by the encoder 124. When the electric guide rail 112 drives the sliding block 113 to move the detection touch plate 114 to contact the top of the highway guardrail post, the following calculation method is used:
[0028] L: The overall national standard height of the guardrail posts can be determined based on the corrugated beam guardrail.
[0029] H: Detects the vertical movement distance of the touch panel 114 from its initial position to its final position at the top of the guardrail post;
[0030] D: The height of the guardrail post on the ground = the overall height of the national standard guardrail post - (the overall distance of the electric guide rail 112 - the vertical movement distance of the detection touch panel 114 from the initial position to the final position of the top of the guardrail post).
[0031] It should be noted that in this embodiment, the detection device is placed next to the guardrail post to be tested, ensuring that the bottom of the detection placement plate 15 is parallel to the ground and in close contact.
[0032] Start the electric guide rail 112, place the detection touch plate 114 in the initial position, ensure that it is aligned with the initial fixed plate 116, and record the data of the initial position as zero.
[0033] Start the electric guide rail 112, drive the sliding block 113 to move the detection touch plate 114 downward until the touch plate 114 contacts the top of the guardrail post. The controller reads the displacement distance of the measuring wire rope 122 through the encoder 124. At the same time, start the laser rangefinder 31 to measure, and ensure that its output end is on the same straight line as the detection touch plate 114. Check whether the displacement distance of the measuring wire rope 122 read by the controller through the encoder 124 and the measurement by the laser rangefinder 31 are the same. Record the vertical movement distance H of the detection touch plate 114 from the initial position to the top of the guardrail post.
[0034] The displacement distance of the steel wire rope 1232 was recorded using an encoder.
[0035] Based on the standard for corrugated beam guardrails, determine the overall national standard height L of the guardrail posts.
[0036] Calculate the height D of the guardrail post located on the ground;
[0037] The formula is:
[0038] D = L − (total distance of the electric guide rail − H)
[0039] Confirm that the distance between the laser rangefinder 31 and the detection touch plate 114 is equal to the displacement distance of the measuring steel wire rope 122 measured by the encoder, in order to verify the consistency of the data;
[0040] This integrated deep-buried displacement detection device combines wire displacement and laser ranging technologies to provide an accurate and efficient detection method to ensure highway safety.
[0041] Furthermore, for Class B posts of two-wave corrugated beam guardrails, the burial depth should not be less than 125cm; for Class A and Am posts, the burial depth should not be less than 140cm; and for Class SB, SA, SAm, SBm, and SS posts of three-wave corrugated beams, the burial depth should not be less than 165cm. These regulations ensure that the guardrail posts can be stably supported on the ground, effectively preventing vehicles from running off the road or reducing damage caused by accidents. When the guardrail posts are buried in the soil and there is no curb, the burial depth should not be less than 110cm; if there is a curb, the burial depth should not be less than 125cm; and when a combined corrugated beam guardrail is used in the central median, the burial depth of the posts should also not be less than 110cm.
[0042] Based on the above data and the measured burial depth, the calculated burial depth D of the guardrail post is compared with the national standard requirements to determine whether it meets the regulations. Repeated testing is conducted to ensure the accuracy of the data.
[0043] The working process of this utility model:
[0044] In use, place the detection device next to the guardrail post to be tested, ensuring that the bottom of the detection placement plate 15 is parallel to the ground and in close contact. Start the electric guide rail 112 to place the detection touch plate 114 in its initial position, ensuring it is aligned with the initial fixed plate 116. Record the initial position data as zero. Start the electric guide rail 112 again, driving the sliding block 113 to move the detection touch plate 114 downwards until the touch plate 114 contacts the top of the guardrail post. The controller reads the displacement distance of the measuring wire rope 122 through the encoder 124. Simultaneously, the laser rangefinder 31 is activated to perform measurements, ensuring its output end is aligned with the detection touch plate 114. Online, verify whether the displacement distance of the measuring wire rope 122 read by the controller through encoder 124 is the same as that measured by laser rangefinder 31. Record the vertical movement distance H of the detection touch plate 114 from the initial position to the top of the guardrail post. Use encoder to record the displacement distance of measuring wire rope 1232. According to the standard of corrugated beam guardrail, determine the overall national standard height L of the guardrail post. Calculate the height D of the guardrail post on the ground, D=L−(overall distance of electric guide rail−H). Confirm that the distance between laser rangefinder 31 and detection touch plate 114 is equal to the displacement distance of measuring wire rope 122 measured by encoder to verify the consistency of data.
[0045] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.
Claims
1. A device for detecting the burial depth of highway guardrail posts, comprising an integrated displacement depth detection device (1), characterized in that: The integrated displacement deep-buried detection device (1) includes a deep-buried detection support device (11), a wire displacement deep-buried detection device (12) located on the deep-buried detection support device (11), and a displacement laser deep-buried detection device (13). The deep-buried detection support device (11) includes a support rod (111) and an electric guide rail (112) parallel to the outer wall of the support rod (111). A sliding block (113) is slidably connected on the electric guide rail (112). A detection touch plate (114) is connected to the outer side of the sliding block (113) away from the drive motor of the electric guide rail (112). A detection placement plate (115) is connected to the outer wall of the electric guide rail (112) away from the drive motor. An initial fixing plate (116) is connected to the top of the electric guide rail (112) near the drive motor.
2. The highway guardrail post burial depth detection device according to claim 1, characterized in that: The wire displacement deep burial detection device (12) includes a wire fixing seat (121), a measuring wire rope (122), a wire box (123), and an encoder (124). The wire fixing seat (121) is fixed on the outside of one side of the detection touch plate (114). The wire box (123) is located on the outer wall of one side of the initial fixed plate (116). The encoder (124) is located on the initial fixed plate (116). One end of the measuring wire rope (122) is connected to the wire fixing seat (121), and the other end of the measuring wire rope (122) passes through the wire box (123) and extends into the encoder (124).
3. The highway guardrail post burial depth detection device according to claim 1, characterized in that: The displacement laser deep-buried detection device (13) includes a laser rangefinder (131), which is located on the outer wall of one side of the initial fixed plate (116). The output end of the laser rangefinder (131) is on the same straight line as the detection touch plate (114).
4. The highway guardrail post burial depth detection device according to claim 1, characterized in that: During testing, the bottom of the testing placement plate (115) is parallel to and abuts against the ground on one side of the highway guardrail post. When the electric guide rail (112) drives the sliding block (113) to bring the testing touch plate (114) abutting against the top of the highway guardrail post, the calculation is performed using the following method: L: The overall national standard height of the guardrail posts can be determined based on the corrugated beam guardrail. H: Detect the vertical movement distance of the detection touch plate (114) from its initial position to its final position at the top of the guardrail post; D: The height of the guardrail post on the ground = the overall height of the national standard guardrail post - (the overall distance of the electric guide rail (112) - the vertical movement distance of the detection touch plate (114) from the initial position to the final position of the top of the guardrail post).
5. The highway guardrail post burial depth detection device according to claim 3, characterized in that: The distance between the laser rangefinder (131) and the detection touch plate (114) is equal to the displacement distance of the measuring wire rope (122) measured by the encoder (124).