A deflection measuring device for highway inspection

By introducing fixed-point spraying marking, elastic support isolation, and auxiliary shooting and recording mechanism into the deflection measurement device, the problem of existing devices being unable to quickly mark the path has been solved, achieving efficient and stable highway detection.

CN224518403UActive Publication Date: 2026-07-17ZHEJIANG LIZHOU TRAFFIC ENG TESTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LIZHOU TRAFFIC ENG TESTING CO LTD
Filing Date
2025-06-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing deflection measurement device lacks an auxiliary marking structure, which makes it impossible to quickly mark the monitoring path, reducing the ease of use and the ability of re-inspection personnel to make quick visual judgments.

Method used

A deflection measurement device was designed, comprising a fixed-point spraying and marking mechanism, an elastic support and isolation mechanism, and an auxiliary shooting and recording mechanism. By spraying water-soluble paint to mark the road surface, using elastic support and isolation, and capturing and recording with a wide-angle camera, rapid marking and stable detection can be achieved.

Benefits of technology

It improves the ease of use and stability of the deflection measurement device, enhances the ability of re-inspection personnel to make rapid visual judgments, and improves testing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a deflection measuring device for highway inspection, including a mounting drive plate. A falling weight deflectometer body is embedded in the center of the top of the mounting drive plate. A connecting swing frame is movably mounted on the top of one end of the mounting drive plate. A liquid storage marking box is fixedly mounted on the center of one side of the top of the mounting drive plate corresponding to the falling weight deflectometer body. The liquid storage marking box is fitted with a sealed cover via threads. This utility model uses a liquid supply pump to introduce water-soluble paint from inside the liquid storage marking box into a supply tube. The water-soluble paint is then introduced into a guide box through the supply tube. A spray nozzle sprays the water-soluble paint from the guide box onto the road surface being inspected, thus achieving rapid marking of the road surface during the inspection process. This helps inspection personnel quickly record the inspection location and further improves the overall ease of use of the deflection measuring device.
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Description

Technical Field

[0001] This utility model relates to the field of deflection measurement technology, specifically a deflection measurement device for highway inspection. Background Technology

[0002] Highway deflection measurement is a core testing method for assessing the bearing capacity of pavement structures in road engineering. It mainly determines the strength, stability and degree of damage of the pavement structure by measuring the vertical deformation (deflection value) of the pavement under load. A falling weight deflectometer is required when measuring highway deflection.

[0003] However, the lack of corresponding auxiliary marking structures in the current deflection measurement device makes it impossible to quickly mark the monitored path during use, which in turn makes it impossible for the re-inspection personnel to make quick and visual judgments, thus reducing the ease of use of the deflection measurement device. Utility Model Content

[0004] This utility model provides a deflection measuring device for highway inspection, which can effectively solve the problem mentioned in the background art that the deflection measuring device cannot quickly mark the monitored path during use due to the lack of corresponding auxiliary marking structure, thus making it impossible for the re-inspection personnel to make quick and visual judgments, thereby reducing the ease of use of the deflection measuring device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a deflection measuring device for highway inspection, comprising a mounting drive plate, wherein a falling weight type deflection meter body is embedded in the middle of the top of the mounting drive plate, and a connecting swing frame is movably mounted on the top of one end of the mounting drive plate.

[0006] The top of the mounting drive vehicle plate is equipped with a fixed-point spraying marking mechanism;

[0007] The fixed-point spraying and marking mechanism includes a liquid storage marking tank, a sealed tank cover, a liquid supply bottom pump, a liquid supply cap, a liquid guiding box, and a spray nozzle;

[0008] A liquid storage marking box is fixedly installed on the top side of the drive vehicle plate, corresponding to the middle of one side of the main body of the falling weight deflectometer. The liquid storage marking box is fitted with a sealed cover by threads. A liquid supply bottom pump is embedded in the middle of the bottom end of the liquid storage marking box. The liquid supply bottom pump is powered by an external power source. A liquid supply thin tube is fixedly connected to the bottom end of the liquid supply bottom pump at the bottom position corresponding to the bottom of the drive vehicle plate. Liquid guide boxes are fixedly connected to the outside of the liquid supply thin tube at the four corners of the bottom of the drive vehicle plate. A spray nozzle is fixedly installed in the middle of the bottom end of the liquid guide box.

[0009] Preferably, the liquid storage marking box contains water-soluble paint, and the inner cavity of the liquid guiding round box is interconnected with the inner cavity of the liquid supply capillary tube.

[0010] Preferably, the bottom end of the mounting drive plate is provided with an elastic support isolation mechanism;

[0011] The elastic support isolation mechanism includes a connecting turntable, a mounting rectangular box, an internal support spring, a lifting arc-shaped slider, and a rolling guide wheel;

[0012] A connecting turntable is rotatably installed at each of the four corners of the bottom surface of the mounting drive plate. A mounting rectangular box is fixedly connected to the bottom center of the connecting turntable. An internal support spring is fixedly connected to the top of the inner side of the mounting rectangular box. A lifting arc-shaped slider is fixedly connected to the bottom of the internal support spring at the position inside the mounting rectangular box. A rolling guide wheel is rotatably connected to one bottom end of the lifting arc-shaped slider via a rotating shaft.

[0013] Preferably, the outer side of the lifting arc-shaped slider is in close sliding contact with the inner wall of the mounting rectangular box, and the outer side of the rolling guide wheel is uniformly provided with protective grooves.

[0014] Preferably, an auxiliary shooting and recording mechanism is provided at the middle of one end of the mounting drive plate;

[0015] The auxiliary shooting and recording mechanism includes a rectangular mounting base, a splicing slide, a connecting slide, a mounting top base, a wide-angle camera, and fixing bolts;

[0016] A rectangular mounting bracket is fixedly connected to the middle of one end of the mounting drive plate. A splicing groove is opened in the middle of one side of the mounting rectangular mounting bracket. A connecting bracket is slidably engaged inside the splicing groove. A mounting top is fixedly connected to the middle of the top of the connecting bracket. A wide-angle camera is fixedly connected to the middle of the bottom of the mounting top. A fixing bolt is inserted and installed at the top of the mounting rectangular mounting bracket.

[0017] Preferably, the end of the connecting slide is in close sliding contact with the inner wall of the mounting rectangular slide, and the fixing bolt passes through the mounting rectangular slide and the connecting slide simultaneously.

[0018] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0019] 1. A fixed-point spraying marking mechanism is set up. Water-soluble paint is stored in the top of the drive vehicle plate through a liquid storage marking tank. The liquid filling port on the top of the liquid storage marking tank is sealed by a sealing cover. The water-soluble paint inside the liquid storage marking tank is introduced into the liquid supply cap through a liquid supply pump. The water-soluble paint is then introduced into the liquid guiding box through the liquid supply cap. The water-soluble paint inside the liquid guiding box is sprayed onto the road surface to be inspected through a spray nozzle. This enables rapid marking of the road surface during the inspection process, which helps the re-inspection personnel to quickly record the inspection location and further improves the overall ease of use of the deflection measurement device.

[0020] 2. An elastic support isolation mechanism is set up. The rectangular mounting box is rotated and installed to the bottom of the mounting drive vehicle plate through the connecting turntable. The mounting drive vehicle plate is guided by the cooperation between the connecting turntable and the rolling guide wheel. When the road surface is uneven, the overall force of the mounting drive vehicle plate changes. The internal support spring is compressed and drives the lifting arc slider to slide up and down along the inside of the rectangular mounting box. The lifting arc slider keeps the mounting drive vehicle plate stable, thereby effectively improving the stability of the deflection measurement device.

[0021] 3. An auxiliary shooting and recording mechanism is set up. The connecting slide and its components are installed to the end of the mounting drive vehicle plate through the splicing slide. The wide-angle camera is installed to the end of the connecting slide through the mounting top plate. The wide-angle camera shoots and records the road conditions during the movement of the mounting drive vehicle plate. When it is necessary to adjust the horizontal position of the connecting slide, the connecting slide can be slid laterally along the splicing slide to adjust the position of the wide-angle camera. The mounting rectangular slide and the connecting slide are fixed with fixing bolts, thereby effectively expanding the function of the deflection measurement device and improving the overall use effect of the deflection measurement device. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the fixed-point spraying and marking mechanism of this utility model;

[0026] Figure 3 This is a schematic diagram of the elastic support isolation mechanism of this utility model;

[0027] Figure 4This is a schematic diagram of the structure of the auxiliary shooting and recording mechanism of this utility model;

[0028] The diagram shows: 1. Mounting drive plate; 2. Falling weight deflectometer body; 3. Connecting swing frame;

[0029] 4. Fixed-point spraying and marking mechanism; 401. Liquid storage and marking tank; 402. Sealed tank cover; 403. Liquid supply bottom pump; 404. Liquid supply capillary tube; 405. Liquid guiding box; 406. Spray nozzle;

[0030] 5. Elastic support isolation mechanism; 501. Connecting turntable; 502. Mounting rectangular box; 503. Internal support spring; 504. Lifting arc-shaped slider; 505. Rolling guide wheel;

[0031] 6. Auxiliary shooting and recording mechanism; 601. Install rectangular slide; 602. Splicing slide; 603. Connect slide; 604. Install top mount; 605. Wide-angle camera; 606. Fixing bolts. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] Example: Figure 1-4 As shown, this utility model provides a technical solution, a deflection measuring device for highway testing, including a mounting drive plate 1, a falling weight type deflection meter body 2 embedded in the middle of the top of the mounting drive plate 1, and a connecting swing frame 3 movably mounted on the top of one end of the mounting drive plate 1.

[0034] A fixed-point spraying marking mechanism 4 is installed on the top of the drive vehicle plate 1;

[0035] The fixed-point spraying marking mechanism 4 includes a liquid storage marking tank 401, a sealing tank cover 402, a liquid supply bottom pump 403, a liquid supply cap 404, a liquid guiding round box 405, and a spraying round head 406;

[0036] A liquid storage marking tank 401 is fixedly installed on the top side of the driving vehicle plate 1, corresponding to the middle of one side of the main body 2 of the falling weight deflectometer. A sealing cover 402 is threaded onto the liquid storage marking tank 401. A liquid supply pump 403 is embedded in the middle of the bottom of the liquid storage marking tank 401. The liquid supply pump 403 is powered by an external power source. A liquid supply tube 404 is fixedly connected to the bottom of the liquid supply pump 403 at the bottom position corresponding to the bottom of the driving vehicle plate 1. Liquid guide boxes 405 are fixedly connected to the four corners of the bottom of the driving vehicle plate 1 on the outside of the liquid supply tube 404. A spray nozzle 406 is fixedly installed at the middle of the bottom of the liquid guide box 405. The liquid storage marking tank 401 contains water-soluble paint. The inner cavity of the liquid guide box 405 is connected to the liquid supply... The inner cavities of the thin tubes 404 are interconnected. Water-soluble paint is stored in the top of the drive vehicle plate 1 through the liquid storage marking tank 401. The liquid filling port at the top of the liquid storage marking tank 401 is sealed by the sealing tank cover 402. The water-soluble paint inside the liquid storage marking tank 401 is introduced into the liquid supply thin tube 404 through the liquid supply thin tube 404. The water-soluble paint is introduced into the liquid guiding round box 405 through the liquid supply thin tube 404. The water-soluble paint inside the liquid guiding round box 405 is sprayed onto the road surface to be inspected through the spray round head 406. Thus, the road surface is quickly marked during the inspection process, which helps the re-inspection personnel to quickly record the inspection position and further improves the overall ease of use of the deflection measurement device.

[0037] A flexible support isolation mechanism 5 is provided at the bottom of the drive vehicle plate 1;

[0038] The elastic support isolation mechanism 5 includes a connecting turntable 501, a mounting rectangular box 502, an internal support spring 503, a lifting arc-shaped slider 504, and a rolling guide wheel 505;

[0039] At each of the four corners of the bottom surface of the drive vehicle plate 1, a connecting turntable 501 is rotatably mounted. A rectangular mounting box 502 is fixedly connected to the center of the bottom of the connecting turntable 501. An internal support spring 503 is fixedly connected to the top of the inner side of the rectangular mounting box 502. A lifting arc-shaped slider 504 is fixedly connected to the bottom of the internal support spring 503 at a position corresponding to the inside of the rectangular mounting box 502. A rolling guide wheel 505 is rotatably connected to one bottom side of the lifting arc-shaped slider 504 via a rotating shaft. The outer side of the lifting arc-shaped slider 504 slides tightly against the inner wall of the rectangular mounting box 502. Protective features are evenly distributed on the outer side of the rolling guide wheel 505. The mounting rectangular box 502 is rotated and mounted to the bottom of the mounting drive plate 1 via the connecting turntable 501. The mounting drive plate 1 is guided to change direction by the cooperation between the connecting turntable 501 and the rolling guide wheel 505. When the road surface is uneven, the overall force of the mounting drive plate 1 changes, causing the internal support spring 503 to be compressed, which will drive the lifting arc slider 504 to slide up and down along the inside of the mounting rectangular box 502. The lifting arc slider 504 keeps the mounting drive plate 1 stable, thereby effectively improving the stability of the deflection measuring device.

[0040] An auxiliary shooting and recording mechanism 6 is provided in the middle of one end of the drive vehicle plate 1;

[0041] The auxiliary shooting and recording mechanism 6 includes a rectangular mounting base 601, a splicing slide 602, a connecting slide 603, a mounting top base 604, a wide-angle camera 605, and a fixing bolt 606;

[0042] A rectangular mounting bracket 601 is fixedly connected to the middle of one end of the drive vehicle plate 1. A splicing groove 602 is provided in the middle of one side of the rectangular mounting bracket 601. A connecting bracket 603 is slidably engaged inside the splicing groove 602. A mounting top 604 is fixedly connected to the middle of the top of the connecting bracket 603. A wide-angle camera 605 is fixedly connected to the middle of the bottom of the mounting top 604. A fixing bolt 606 is inserted and installed at the top of the rectangular mounting bracket 601. The end of the connecting bracket 603 is tightly slidably fitted with the inner wall of the rectangular mounting bracket 601. The fixing bolt 606 simultaneously passes through the rectangular mounting bracket 601 and the connecting bracket 603. The connecting bracket is secured by the splicing groove 602. The 603 and its components are installed at the end of the mounting drive plate 1. The wide-angle camera 605 is installed at the end of the connecting slide 603 via the mounting top 604. The wide-angle camera 605 records the road conditions during the movement of the mounting drive plate 1. When it is necessary to adjust the horizontal position of the connecting slide 603, the connecting slide 603 can be slid laterally along the splicing groove 602 to adjust the position of the wide-angle camera 605. The mounting rectangular slide 601 and the connecting slide 603 are fixed together by the fixing bolts 606, thereby effectively expanding the function of the deflection measuring device and improving the overall performance of the deflection measuring device.

[0043] The working principle and usage process of this utility model: In the actual application process, when using the deflection measuring device to detect highways, the installation drive plate 1 is connected to the traction equipment by connecting the swing frame 3. Then, the installation drive plate 1 drives the falling weight deflector body 2 and its components to move synchronously. During the movement, the falling weight deflector body 2 is used for periodic impact detection.

[0044] Furthermore, while the deflection measuring device is performing the test, water-soluble paint is stored in the liquid storage marking box 401 on the top of the mounting drive vehicle plate 1. The liquid filling port on the top of the liquid storage marking box 401 is sealed by the sealing box cover 402. The water-soluble paint inside the liquid storage marking box 401 is introduced into the liquid supply cap 404 by the liquid supply bottom pump 403. The water-soluble paint is then introduced into the liquid guiding box 405 through the liquid supply cap 404. Finally, the water-soluble paint inside the liquid guiding box 405 is sprayed onto the road surface being tested by the spray head 406. This achieves rapid marking of the road surface during the test, which helps the re-inspection personnel to quickly record the test position and further improves the overall ease of use of the deflection measuring device.

[0045] When it is necessary to keep the installation drive plate 1 running smoothly, the mounting rectangular box 502 is rotated and installed to the bottom of the installation drive plate 1 through the connecting turntable 501. Then, the installation drive plate 1 is guided to change direction through the cooperation between the connecting turntable 501 and the rolling guide wheel 505. When the road surface is uneven, the overall force of the installation drive plate 1 changes, and the internal support spring 503 is compressed, which drives the lifting arc slider 504 to slide up and down along the inside of the mounting rectangular box 502. The lifting arc slider 504 keeps the installation drive plate 1 stable, thereby effectively improving the stability of the deflection measuring device.

[0046] When it is necessary to record the road surface conditions, the connecting slide 603 and its components are installed to the end of the mounting drive vehicle plate 1 via the splicing slide 602, and the wide-angle camera 605 is installed to the end of the connecting slide 603 via the mounting top 604. The wide-angle camera 605 then records the road surface conditions as the mounting drive vehicle plate 1 moves. When it is necessary to adjust the horizontal position of the connecting slide 603, the connecting slide 603 can be slid laterally along the splicing slide 602 to adjust the position of the wide-angle camera 605. The mounting rectangular slide 601 and the connecting slide 603 are then fixed together by the fixing bolts 606, thereby effectively expanding the function of the deflection measuring device and improving the overall performance of the deflection measuring device.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A deflection measuring device for highway detection comprising a mounting drive car plate (1) characterized in that: The main body (2) of the falling weight deflectometer is embedded in the middle of the top of the mounting drive plate (1), and a connecting swing frame (3) is movably installed at the top of one end of the mounting drive plate (1). The top of the mounting drive plate (1) is provided with a fixed-point spraying marking mechanism (4); The fixed-point spraying marking mechanism (4) includes a liquid storage marking tank (401), a sealed tank cover (402), a liquid supply bottom pump (403), a liquid supply cap (404), a liquid guiding round box (405), and a spraying round head (406); A liquid storage marking box (401) is fixedly installed on the top surface of the drive plate (1) corresponding to the middle of one side of the main body (2) of the falling weight deflectometer. The liquid storage marking box (401) is fitted with a sealing box cover (402) by threads. A liquid supply bottom pump (403) is embedded in the middle of the bottom end of the liquid storage marking box (401). The liquid supply bottom pump (403) is powered by an external power source. A liquid supply tube (404) is fixedly connected to the bottom end of the liquid supply bottom pump (403) corresponding to the bottom position of the drive plate (1). A liquid guide box (405) is fixedly connected to the outside of the liquid supply tube (404) corresponding to the four corners of the bottom of the drive plate (1). A spray head (406) is fixedly installed in the middle of the bottom end of the liquid guide box (405).

2. A deflection measuring device for highway testing according to claim 1, wherein, The liquid storage marking box (401) contains water-soluble paint, and the inner cavity of the liquid guiding box (405) is connected to the inner cavity of the liquid supply tube (404).

3. The deflection measuring device for highway inspection according to claim 1, characterized in that, The bottom end of the mounting drive plate (1) is provided with an elastic support isolation mechanism (5); The elastic support isolation mechanism (5) includes a connecting turntable (501), a mounting rectangular box (502), an internal support spring (503), a lifting arc-shaped slider (504), and a rolling guide wheel (505); The mounting drive plate (1) has a connecting turntable (501) rotatably mounted at each of the four corners of its bottom surface. A rectangular mounting box (502) is fixedly connected to the bottom center of the connecting turntable (501). An internal support spring (503) is fixedly connected to the top of the inner side of the rectangular mounting box (502). A lifting arc-shaped slider (504) is fixedly connected to the bottom of the internal support spring (503) at the position inside the rectangular mounting box (502). A rolling guide wheel (505) is rotatably connected to one bottom side of the lifting arc-shaped slider (504) via a rotating shaft.

4. A deflection measuring device for highway testing according to claim 3, wherein, The outer side of the lifting arc-shaped slider (504) is in close sliding contact with the inner wall of the mounting rectangular box (502), and the outer side of the rolling guide wheel (505) is uniformly provided with protective grooves.

5. The deflection measuring device for highway inspection according to claim 1, wherein An auxiliary shooting and recording mechanism (6) is provided at the middle of one end of the mounting drive plate (1); The auxiliary shooting and recording mechanism (6) includes a rectangular mounting base (601), a splicing slide (602), a connecting slide (603), a mounting top base (604), a wide-angle camera (605), and fixing bolts (606); A rectangular mounting bracket (601) is fixedly connected to the middle of one end of the mounting drive plate (1). A splicing groove (602) is provided in the middle of one side of the mounting rectangular mounting bracket (601). A connecting bracket (603) is slidably engaged inside the splicing groove (602). A mounting top seat (604) is fixedly connected to the middle of the top of the connecting bracket (603). A wide-angle camera (605) is fixedly connected to the middle of the bottom of the mounting top seat (604). A fixing bolt (606) is inserted and installed at the top of the mounting rectangular mounting bracket (601).

6. The deflection measuring device for highway inspection according to claim 5, characterized in that, The end of the connecting slide (603) is in close sliding contact with the inner wall of the mounting rectangular slide (601), and the fixing bolt (606) simultaneously passes through the mounting rectangular slide (601) and the connecting slide (603).