Pavement flatness detection device capable of being quickly assembled and disassembled

Abstract

The utility model discloses a pavement flatness detection device capable of being quickly assembled and disassembled, belongs to the technical field of road detection equipment, and solves the problems that an existing detection device is low in assembly and disassembly efficiency and poor in adaptability. A step is arranged in a sleeve cavity of a detection sleeve, a laser detection rod is slidably installed in the sleeve cavity and keeps stable movement through a guide cylinder, the upper end of the laser detection rod abuts against the step, and the lower end of the laser detection rod extends out of the detection sleeve; a plurality of sliding rails with slideways are arranged on the rack in parallel, the slideways allow the detection sleeves to slide and the lower ends of the detection sleeves to penetrate out, the sliding rails are provided with a plurality of positioning grooves, the large-diameter ends of the detection sleeves are clamped into the positioning grooves to achieve rapid fixation, and the other ends of the detection sleeves penetrate out of the rack. According to the device, rapid positioning and dismounting of the detection unit are achieved through cooperation of the sliding rails and the positioning grooves, the device is suitable for different road surface detection requirements, and the detection efficiency and equipment portability are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of road inspection equipment, and in particular relates to a road surface smoothness inspection device that can be quickly assembled and disassembled. Background Technology

[0002] In road construction and maintenance, pavement evenness testing is a crucial step in ensuring project quality. Currently, traditional pavement evenness testing devices typically employ fixed structures or modular designs requiring complex installation steps. These suffer from low assembly and disassembly efficiency, insufficient flexibility in adjusting the spacing between testing units, and poor portability, making them unsuitable for diverse testing scenarios. Specifically, existing technologies often rely on bolted or welded connections for positioning, requiring significant time for each installation or disassembly. This is particularly problematic when frequent adjustments to testing points or equipment transport are needed, resulting in cumbersome and inefficient operations. Therefore, achieving efficient assembly and disassembly, flexible configuration, and convenient transportation of testing devices while maintaining testing accuracy and structural stability has become a pressing technical challenge in this field. Utility Model Content

[0003] One object of the present invention is to solve at least the above-mentioned problems and / or defects, and to provide at least the advantages described below.

[0004] Another objective of this invention is to provide a road surface smoothness testing device that can be quickly assembled and disassembled.

[0005] This addresses the problems of low assembly and disassembly efficiency, insufficient flexibility in adjusting the spacing between detection units, and poor equipment adaptability in existing multi-parameter intelligent road surface detection devices.

[0006] Therefore, the technical solution provided by this utility model is as follows:

[0007] A road surface smoothness testing device that can be quickly assembled and disassembled includes:

[0008] A detection sleeve has a sleeve cavity with a step formed inside the sleeve cavity. One end of the detection sleeve has a larger diameter and the other end has a smaller diameter. A laser detection rod is slidably disposed within the sleeve cavity. The upper end of the laser detection rod is disposed on the step, and the lower end of the laser detection rod extends beyond the other end of the detection sleeve. A guide cylinder is disposed between the laser detection rod and the detection sleeve. A frame has multiple parallel slide rails spaced apart on it. Each slide rail has a slide path that allows the detection sleeve to slide and the lower end of the detection sleeve to pass through. Each slide rail has multiple positioning grooves. The larger diameter end of the detection sleeve is detachably disposed in the positioning groove, while the other end extends beyond the frame through the slide rail.

[0009] Preferably, the road surface smoothness detection device that can be quickly assembled and disassembled further includes: a stop plate, which is arranged in a horizontal direction, the stop plate is connected to the upper end of the laser detection rod, the stop plate is arranged on the step, and a buffer device is provided between the stop plate and the step.

[0010] Preferably, in the road surface smoothness detection device that can be quickly assembled and disassembled, the large-diameter end of the detection sleeve is a trapezoidal structure with the diameter gradually decreasing from top to bottom.

[0011] Preferably, in the road surface smoothness detection device that can be quickly assembled and disassembled, the outer wall of the larger diameter end of the detection sleeve is symmetrically provided with two sets of elastic buckles, and the positioning groove is provided with a slot that cooperates with the elastic buckle, and the elastic buckle is detachably set in the corresponding slot.

[0012] Preferably, in the road surface smoothness testing device that can be quickly assembled and disassembled, a level is provided on the upper surface of the frame.

[0013] Preferably, in the road surface smoothness testing device that can be quickly assembled and disassembled, retractable support legs are connected to the lower part of the four corners of the frame, and wheels are provided at the lower end of the support legs.

[0014] Preferably, in the road surface smoothness detection device that can be quickly assembled and disassembled, the positioning groove includes two semi-positioning grooves located on both sides of the slide.

[0015] The embodiments of this utility model include at least the following beneficial effects:

[0016] This invention utilizes a design that combines a detection sleeve with a slide rail, along with a quick-locking function between the slide rail and the positioning groove, to enable flexible arrangement and disassembly of the detection unit on the frame. By constraining the vertical movement path of the laser detection rod with a guide cylinder, measurement errors caused by offset or swaying are avoided. Furthermore, the multi-slide rail layout supports wide-area road surface detection needs, significantly improving detection efficiency and equipment adaptability.

[0017] This invention effectively absorbs the instantaneous impact force when the laser detection rod contacts the road surface by setting up a stop plate and a buffer device, reducing the interference of vibration on the sensor and measurement data, protecting the internal structure from damage, and ensuring the stable reset of the laser detection rod, thereby improving the continuity of the detection process and the reliability of the data.

[0018] This invention replaces the traditional mechanical detection structure with a laser detection rod, utilizing the high precision and non-contact characteristics of lasers to avoid measurement errors caused by mechanical wear or environmental factors, thereby improving the resolution of road surface smoothness detection.

[0019] This utility model achieves quick installation and locking of the testing sleeve on the slide rail through the combination design of elastic buckle and slot. Fixing or disassembly can be completed without the aid of tools, simplifying the operation steps while ensuring the connection is firm and avoiding accidental disengagement due to vibration during the testing process.

[0020] This invention allows operators to quickly determine the horizontal status of the machine frame by setting a level on the frame surface, and achieves precise leveling by adjusting the height of the support legs, eliminating the deviation of the detection benchmark caused by the tilt of the machine frame and ensuring the accuracy of the measurement data.

[0021] This invention combines retractable support legs and wheels to achieve both stable support and easy mobility for the equipment. The support legs are height-adjustable to adapt to different terrains, while the wheels facilitate short-distance transportation or rapid deployment in confined spaces, significantly improving the equipment's portability and site adaptability.

[0022] This invention simplifies the slide rail processing technology and enhances the structural strength by designing the positioning groove as two semi-positioning grooves on both sides of the slide rail. It avoids the risk of slide rail deformation caused by dense openings. At the same time, the symmetrical layout of the semi-positioning grooves can evenly distribute the force on the detection sleeve, improving positioning stability and long-term reliability.

[0023] Other advantages, objectives, and features of the embodiments of this utility model will be apparent in part from the following description, and in part will be understood by those skilled in the art through study and practice of the embodiments of this utility model. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the installation structure of the detection sleeve and laser detection rod in one embodiment of this utility model.

[0025] Figure 2 This is a top view of the frame structure in one of the embodiments of this utility model.

[0026] Figure 3 This is a schematic diagram of a road surface smoothness detection device that can be quickly assembled and disassembled, as described in one embodiment of this utility model. Detailed Implementation

[0027] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement them based on the description.

[0028] This utility model proposes a road surface smoothness testing device that can be quickly assembled and disassembled, comprising:

[0029] The detection sleeve 3 has a sleeve cavity, and a step is formed inside the sleeve cavity. One end of the detection sleeve 3 has a large diameter and the other end has a small diameter.

[0030] A laser detection rod 1 is slidably disposed within the cavity of the sleeve. The upper end of the laser detection rod 1 is disposed on the step, and the lower end of the laser detection rod 1 extends beyond the other end of the detection sleeve 3. A guide cylinder 2 is disposed between the laser detection rod 1 and the detection sleeve 3.

[0031] The frame 10 has multiple parallel slide rails 101 spaced apart. Each slide rail 101 has a channel that allows the detection sleeve 3 to slide and its lower end to pass through. Each slide rail 101 also has multiple positioning slots 102. The larger diameter end of the detection sleeve 3 is detachably mounted in one of the positioning slots 102, while the other end extends out of the frame 10 through the slide rail 101. Optionally, the detection sleeve 3 is made of high-strength aluminum alloy, and the step inside the sleeve cavity is designed as an annular flange, forming a limiting structure with the stop plate at the upper end of the laser detection rod 1 to prevent excessive retraction of the laser detection rod 1. The guide cylinder 2 is made of wear-resistant nylon and is nested between the sleeve cavity and the laser detection rod 1, constraining the vertical movement trajectory of the laser detection rod 1 and avoiding wear caused by direct metal-to-metal contact. The laser detection rod 1 has a built-in high-precision laser displacement sensor that uses a non-contact measurement principle. It emits a laser beam to the road surface and receives the reflected signal to calculate the road surface height difference in real time. The laser detection rod 1 integrates a wireless transmission module to upload data to the control module in real time.

[0032] In one preferred embodiment of this utility model, it further includes:

[0033] A stop plate 4 is horizontally positioned and connected to the upper end of the laser detection rod 1. The stop plate 4 is mounted on the step, and a buffer device 5 is provided between the stop plate 4 and the step. Optionally, the stop plate 4 is a circular stainless steel plate, and the buffer device 5 employs a multi-layer silicone pad and spring composite structure. The silicone pads disperse the instantaneous impact force, and the springs provide elastic restoring support.

[0034] In one embodiment of this utility model, as a preferred embodiment, the large-diameter end of the detection sleeve is a trapezoidal structure with the diameter gradually decreasing from top to bottom, and the large-diameter end of the sleeve is designed with a tapered transition structure to facilitate alignment with the positioning groove 102 of the slide rail 101. A dustproof sealing ring is added to the outer wall of the small-diameter end to prevent road dust from entering the inside of the sleeve.

[0035] In one embodiment of the utility model, preferably, the outer wall of the larger diameter end of the detection sleeve 3 is symmetrically provided with two sets of elastic buckles, and the positioning groove 102 is provided with a slot that cooperates with the elastic buckle. The elastic buckle is detachably disposed in the corresponding slot. Disassembly is achieved by simply pressing the protrusion at the tail of the buckle, which can be completed with one hand.

[0036] In one embodiment of this utility model, preferably, a level is provided on the upper surface of the frame 10. Optionally, the level is embedded in the middle of the upper surface of the frame 10, which can simultaneously display the horizontal status of the frame 10.

[0037] In one embodiment of this utility model, preferably, retractable support legs are connected to the lower part of the four corners of the frame 10, and wheels are provided at the lower ends of the support legs. Optionally, the wheels are polyurethane-coated casters with built-in hydraulic brakes. The wheels automatically lock when the brake pedal is pressed to prevent the frame 10 from sliding during the testing process. Rubber anti-slip pads are added to the bottom of the support legs to provide stable support when the wheels are suspended in the air.

[0038] In one embodiment of this utility model, preferably, the positioning groove 102 includes two semi-positioning grooves 102 located on both sides of the slide rail. Optionally, the distance between the two semi-positioning grooves 102 is slightly smaller than the diameter of the large end of the detection sleeve 3, using elastic deformation to achieve an interference fit and enhance the reliability of the fixation. The edges of the grooves are chamfered to reduce the frictional resistance when the sleeve slides, while avoiding stress concentration that could cause the slide rail 101 to crack.

[0039] The road surface smoothness detection device that can be quickly assembled and disassembled according to this utility model mainly includes:

[0040] The frame 10, which serves as the main support for the device, adopts a rectangular frame structure with a level on its surface. It has retractable support legs connected to the four corners below, and wheels are installed at the ends of the support legs.

[0041] The slide rail 101 system has multiple slide rails 101 arranged in parallel at intervals on the frame 10. Each slide rail 101 is provided with a slide track and multiple positioning grooves 102. The positioning grooves 102 are semi-positioning grooves 102 symmetrically distributed on both sides of the slide track, which are used to quickly fix the detection sleeve 3.

[0042] The detection unit consists of a detection sleeve 3 and a laser detection rod 1 slidably installed inside it. The lower end of the laser detection rod 1 extends out of the sleeve to contact the road surface, and the upper end abuts against the step inside the sleeve cavity through a stop plate 4 and a buffer device 5.

[0043] The outer wall of the larger diameter end of the detection sleeve 3 is symmetrically provided with elastic buckles, which cooperate with the slots in the positioning groove 102 of the slide rail 101 to achieve quick fixation.

[0044] Installation and Workflow

[0045] Step 1: The operator observes the levelness using a spirit level on the surface of the frame 10, and adjusts the height of the four retractable support legs to keep the frame 10 level, ensuring the accuracy of the testing benchmark. The wheels are suspended in the air during leveling and are only used for short-distance movement.

[0046] Step 2: Align the larger diameter end of the detection sleeve 3 with the slide rail 101, and push the sleeve along the slide rail to the target position. At this time, the elastic buckle on the outer wall of the sleeve aligns with the slot in the positioning groove 102 of the slide rail 101. Press the sleeve to make the elastic buckle engage in the slot, completing the quick locking. The other end of the sleeve extends through the slide rail 101 to the bottom of the frame 10, and the lower end of the laser detection rod 1 hangs naturally towards the ground.

[0047] Step 3: The laser detection rod 1 is constrained by the guide cylinder 2 and slides vertically within the sleeve cavity. When the device moves to the detection point, the lower end of the laser detection rod 1 contacts the road surface and retracts upward due to road surface undulations. At this time, the buffer device 5 between the stop plate 4 and the step absorbs the impact force, reducing the interference of vibration on the laser detection rod 1 and ensuring stable measurement data.

[0048] Step 4: Multiple detection units are flexibly arranged along slide rail 101, and the spacing can be adjusted according to road surface detection requirements. The road surface height data collected by laser detection rod 1 is transmitted to the control module through built-in sensors to generate high-precision smoothness analysis results.

[0049] This invention utilizes multiple parallel sliding rails 101 to install multiple detection sleeves 3, covering the transverse width of the road surface and enabling simultaneous data collection from multiple points. The support legs are independently adjustable to accommodate varying ground elevations, and the wheels facilitate rapid relocation on the construction site. The detection sleeves 3 can be removed from the sliding rails 101 by pressing the elastic buckles; all components are foldable for storage, saving transportation space.

[0050] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the embodiments of the present invention. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the embodiments of the present invention are not limited to the specific details and illustrations shown and described herein.

Claims

1. A road surface smoothness testing device that can be quickly assembled and disassembled, characterized in that, include: A detection sleeve having a sleeve cavity, a step being formed inside the sleeve cavity, and one end of the detection sleeve having a larger diameter and the other end having a smaller diameter; A laser detection rod is slidably disposed within the cavity of the sleeve. The upper end of the laser detection rod is disposed on the step, and the lower end of the laser detection rod extends beyond the other end of the detection sleeve. A guide cylinder is disposed between the laser detection rod and the detection sleeve. The frame has multiple parallel slide rails spaced apart on it. Each slide rail is provided with a slide path that allows the detection sleeve to slide and the lower end of the detection sleeve to pass through. Each slide rail is also provided with multiple positioning grooves. The larger diameter end of the detection sleeve is detachably installed in the positioning groove, while the other end extends out of the frame through the slide rail.

2. The road surface smoothness testing device that can be quickly assembled and disassembled as described in claim 1, characterized in that, Also includes: A stop plate is provided horizontally and is connected to the upper end of the laser detection rod. The stop plate is set on the step and a buffer device is provided between the stop plate and the step.

3. The road surface smoothness testing device that can be quickly assembled and disassembled as described in claim 1, characterized in that, The detection sleeve has a trapezoidal structure with a large diameter at one end, which gradually decreases in diameter from top to bottom.

4. The road surface smoothness testing device that can be quickly assembled and disassembled as described in claim 1, characterized in that, The outer wall of the larger diameter end of the detection sleeve is symmetrically provided with two sets of elastic buckles. The positioning groove is provided with a slot that cooperates with the elastic buckle. The elastic buckle is detachably set in the corresponding slot.

5. The road surface smoothness testing device that can be quickly assembled and disassembled as described in claim 1, characterized in that, A level is provided on the upper surface of the frame.

6. The road surface smoothness testing device that can be quickly assembled and disassembled as described in claim 1, characterized in that, The frame has retractable support legs connected to its four corners, and the lower ends of the support legs are equipped with wheels.

7. The road surface smoothness testing device that can be quickly assembled and disassembled as described in claim 1, characterized in that, The positioning groove includes two semi-positioning grooves located on both sides of the slide.

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