Sampling device for highway engineering test detection

Abstract

The utility model relates to a sampling device for highway engineering test detection, and belongs to the technical field of highway engineering. The sampling device for highway engineering test detection comprises a bottom plate and a sampling piece arranged above the bottom plate, the anti-seismic assembly is arranged on the surface of the sampling barrel of the sampling piece; wherein the anti-seismic assembly comprises an anti-seismic cover arranged on the surface of a sampling barrel in the sampling piece, and a fulcrum is arranged below the anti-seismic cover; by arranging the anti-seismic assembly on the surface of the sleeve, when the sampling barrel descends and samples, the anti-seismic cover and a plurality of fulcrums are utilized, so that the sampling barrel can be supported and kept stable, and meanwhile, vibration force generated when the sampling barrel and a road surface rotate at a high speed can be counteracted in a multi-point manner; the problem that the tightness of a sample in the sampling barrel is influenced by resonance between the sampling barrel and other structures due to vibration generated by the sampling barrel during sampling can be effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering technology, and in particular to a sampling device for highway engineering testing and inspection. Background Technology

[0002] Highway engineering refers to various engineering activities involving the construction, reconstruction, and maintenance of highways. It encompasses multiple stages, including road design, construction, maintenance, and reconstruction, aiming to provide safe and convenient transportation conditions and promote regional economic development. In highway engineering testing and inspection operations, sampling devices are required to obtain representative samples from materials such as roadbed, pavement, asphalt, and soil to ensure the accuracy and reliability of test results.

[0003] Referring to the case "A Sampling Device for Highway Engineering" (publication number CN219793883U), this utility model discloses a sampling device for highway engineering, including a base. Two movable wheels are rotatably connected to the outer walls of both sides of the base via bearings. A sampling port is provided at the top of the base. A support frame is bolted to the top of the base, and openings are provided on both sides of the top of the support frame. A pushing mechanism is provided between the two openings, and a support plate is bolted to the bottom of the pushing mechanism. A sampling mechanism is provided at the bottom of the support plate, and the sampling mechanism includes a rotating rod and a sampling cylinder. The rotating rod is rotatably connected to the support plate via bearings, and the bottom of the rotating rod is bolted to the sampling cylinder. This utility model can extract soil samples from inside the sampling cylinder, thereby improving sample integrity and thus improving the accuracy and reliability of sample detection data.

[0004] Although the above-mentioned sampling device can push the sample out of the sampling tube using a hydraulic rod and push plate, in actual sampling, the sampling tube is in a state of high-speed friction with the ground, which will generate a certain degree of vibration. The vibration will cause the particles inside the soil or other samples to shift, resulting in a loose sample structure that cannot maintain its original dense state. Utility Model Content

[0005] Therefore, it is necessary to provide a sampling device for highway engineering testing to address the problem that the above-mentioned sampling devices are prone to causing the samples inside the sampling tube to become loose and misshapen due to vibration.

[0006] A sampling device for highway engineering testing includes: a base plate and a sampling component disposed on top of it;

[0007] An anti-seismic component is disposed on the surface of the sampling cylinder of the sampling element;

[0008] The anti-seismic component includes an anti-seismic cover disposed on the surface of the sampling cylinder in the sampling component, and a support point is provided below the anti-seismic cover.

[0009] In one embodiment, the seismic stabilizing component further includes a sleeve disposed on the surface of the sleeve in the sampling member, and the seismic stabilizing cover slides vertically on the surface of the sleeve.

[0010] In one embodiment, a spring is provided on the surface of the sleeve, and the lower end of the spring is fixedly connected to the shock absorber. The shock absorber and the sleeve are designed to fit together.

[0011] In one embodiment, the shock absorber is a hollow, flat-topped conical design, and the lower end face of the shock absorber is consistent with the lower end face of the sampling cylinder in the sampling component.

[0012] In one embodiment, the interior of the shock-absorbing cover has a through groove, the fulcrum is located in the through groove, and the through groove is designed at an angle.

[0013] In one embodiment, a compression pad is provided on the upper inner side of the through groove, and the lower end of the compression pad is fixedly connected to the fulcrum.

[0014] In one embodiment, the fulcrum is L-shaped and is made of stainless steel.

[0015] In one embodiment, the sampling component includes two vertical rods disposed above a base plate, a platform fixedly connected between the top ends of the two lead rods, a first motor fixedly connected above the platform, the output end of the first motor extending through to the bottom of the platform and fixedly connected to a lead rod, a movable plate disposed on the surface of the lead rod through a threaded sleeve, the movable plate sliding on the surface of the two vertical rods, a second motor disposed in front of the movable plate, a sleeve located in front of the movable plate and below the second motor, the output end of the second motor extending through the sleeve and fixedly connected to a sampling cylinder, the sampling cylinder being located within the sleeve.

[0016] Beneficial effects

[0017] 1. By setting anti-vibration components on the surface of the sleeve, when the sampling cylinder descends and takes a sample, the anti-vibration cover and multiple support points can not only support the sampling cylinder and keep it stable, but also cancel the vibration force generated by the high-speed rotation of the road surface at multiple points. This can effectively prevent the sampling cylinder from vibrating during sampling and causing resonance with other structures, thus affecting the tightness of the sample inside the sampling cylinder.

[0018] 2. By setting up an anti-vibration cover, not only can the sampling tube be protected against vibration, but it can also cover the dust generated at the drilling site when the sampling tube is drilling and sampling the ground, preventing the dust from flying and affecting the surrounding environment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the sampling component of this utility model;

[0022] Figure 3 This is a structural schematic diagram of the earthquake-resistant component of this utility model;

[0023] Figure 4 This is a partial structural schematic diagram of the earthquake-resistant component of this utility model;

[0024] Figure 5 This is a structural breakdown diagram of the sleeve and shock-absorbing cover of this utility model.

[0025] Figure label:

[0026] 1. Base plate; 2. Sampling component; 3. Seismic resistant component; 301. Sleeve; 302. Seismic resistant cover; 303. Spring; 304. Support point; 305. Extrusion pad; 306. Through groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The following is combined Figures 1-5 This invention describes a sampling device for highway engineering testing and inspection.

[0029] In one embodiment, a sampling device for highway engineering testing includes: a base plate 1 and a sampling element 2 disposed above it;

[0030] Seismic resistant component 3 is disposed on the surface of the sampling cylinder of sampling component 2;

[0031] Sampling devices are required for testing and inspection in highway engineering, primarily to ensure the accuracy and reliability of test results. Sampling allows for the acquisition of representative material samples, enabling the evaluation of the performance of various materials such as subgrade, pavement, asphalt, and soil. This ensures that the project quality meets design requirements and guarantees the long-term safety of the road.

[0032] Overall operating steps of the sampling device:

[0033] Preparation phase:

[0034] Choose the appropriate sampling device: Select the appropriate sampling instrument according to the specific testing requirements;

[0035] Determine sampling points and depths: Select representative locations and depths for sampling based on the engineering design and construction conditions;

[0036] Sampling process:

[0037] Use sampling piece 2 for sampling: accurately insert or contact sampling piece 2 with the predetermined sampling point to ensure that the sample is intact and undisturbed;

[0038] Seal samples promptly: After sampling, seal the samples immediately to prevent them from being contaminated, weathered or affected by other environmental factors;

[0039] Sample identification and recording:

[0040] Each sample is numbered and recorded, noting the sampling location, depth, time, and other relevant information to ensure that the samples are traceable.

[0041] Complete the relevant labeling work for the samples to facilitate subsequent experimental analysis.

[0042] Transportation and storage:

[0043] Samples should be properly stored according to the prescribed storage conditions to prevent changes in their properties.

[0044] During transportation, ensure that the samples are not subjected to vibration, contamination, or other influences to ensure their reliability.

[0045] Experimental Analysis:

[0046] According to the predetermined experimental items, the samples were tested and the experimental results were recorded;

[0047] In order to ensure that the sample will not become loose due to vibration and lose its original compact state, an anti-vibration component 3 is set at the sampling part of the conventional sampling component 2 to offset and absorb the vibration generated during sampling.

[0048] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the seismic component 3 includes a seismic shield 302 disposed on the surface of the sampling cylinder in the sampling component 2, and a support point 304 is disposed below the seismic shield 302;

[0049] The seismic shield 302 is a hollow, flat-topped conical design. The lower end face of the seismic shield 302 is consistent with the lower end face of the sampling cylinder in the sampling component 2. A through groove 306 is opened inside the seismic shield 302, and the support point 304 is located in the through groove 306. The through groove 306 is designed at an angle. A compression pad 305 is set in the upper inner part of the through groove 306. The lower end of the compression pad 305 is fixedly connected to the support point 304. The support point 304 is designed in an L-shape and is made of stainless steel.

[0050] During sampling, the first motor in sampling component 2, in conjunction with the lead screw, will cause the movable plate to move down. When the movable plate moves down, the second motor will drive the sampling cylinder to move down and contact the ground. Then the second motor can be opened and drive the sampling cylinder to drill into the ground.

[0051] First, the support point 304 below the anti-vibration cover 302 will contact the ground. Multiple support points 304 can be used to disperse the vibration force of the anti-vibration cover 302 from multiple directions. When the first motor controls the second motor to move down, the anti-vibration cover 302 will slide vertically on the surface of the sleeve, which can assist the sampling cylinder to move vertically down, and at the same time enable the sampling cylinder to maintain stable rotation.

[0052] When the sampling tube drills into the road surface, it will generate a certain vibration. At this time, the vibration force will be transmitted to the anti-vibration cover 302 through the sleeve. Since the anti-vibration cover 302 has a conical hollow design, it can reduce the transmission of vibration. At the same time, the vibration force can be absorbed by multiple support points 304 and the compression pad 305 above them.

[0053] A push rod and a push plate are installed inside the upper part of the sampling tube. After the sampling tube drills and takes samples from the road, the push rod inside the sampling tube will drive the push plate to extend outward. At this time, the push rod will push out the sample in the sampling tube so that personnel can collect and test it.

[0054] The seismic component 3 also includes a sleeve 301 disposed on the surface of the sleeve in the sampling component 2, and a seismic cover 302 sliding vertically on the surface of the sleeve 301; a spring 303 is disposed on the surface of the sleeve 301, and the lower end of the spring 303 is fixedly connected to the seismic cover 302, and the seismic cover 302 and the sleeve 301 are designed to fit together.

[0055] It should be noted that a spring 303 is installed between the casing 301 and the anti-vibration cover 302. As the anti-vibration cover 302 rises continuously on the surface of the casing 301, the spring 303 will be gradually compressed, and the stress of the spring 303 will gradually increase. At this time, the stress of the spring 303 between the casing 301 and the anti-vibration cover can not only maintain the stability of the anti-vibration cover 302, but also enable the anti-vibration cover 302 to continue to be in contact with the ground, so as to absorb most of the vibration generated during the drilling of the sampling tube and reduce the transmission of vibration.

[0056] like Figure 2 As shown, the sampling component 2 includes two vertical rods set above the base plate 1. A platform is fixedly connected between the top ends of the two screw rods. A first motor is fixedly connected above the platform. The output end of the first motor passes through the bottom of the platform and is fixedly connected to a screw rod. A movable plate is set on the surface of the screw rod through a threaded sleeve. The movable plate slides on the surface of the two vertical rods. A second motor is set in front of the movable plate. A sleeve is located in front of the movable plate and below the second motor. The output end of the second motor passes through the sleeve and is fixedly connected to a sampling cylinder. The sampling cylinder is located in the sleeve.

[0057] It should be noted that the first motor, second motor, lead screw, threaded sleeve, sampling cylinder and extrusion pad 305 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the first motor and second motor can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0058] Working principle: In actual use, the sampling component 2 first controls the sampling cylinder to move downward and drill the road to take samples. At this time, the anti-vibration cover 302 will first come into contact with the ground and be compressed. Then, the anti-vibration cover 302 will slide vertically on the surface of the sleeve, which can assist the sampling cylinder to move vertically downward and also make the sampling cylinder rotate stably. When the sampling cylinder drills the road surface, it will generate a certain vibration. At this time, the vibration force will be transmitted to the anti-vibration cover 302 through the sleeve. Since the anti-vibration cover 302 has a conical hollow design, it can reduce the transmission of vibration. At the same time, the vibration force can be absorbed by multiple support points 304 and the compression pad 305 above them, thereby avoiding the vibration force from being transmitted upward and causing resonance between structures and affecting the compactness of the sample in the sampling cylinder.

[0059] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sampling device for highway engineering test detection, characterized by, include: The base plate (1) and the sampling device (2) placed on top of it; Seismic resistant component (3), wherein the seismic resistant component (3) is disposed on the surface of the sampling tube of the sampling component (2); The seismic component (3) includes a seismic shield (302) disposed on the surface of the sampling tube in the sampling component (2), and a support point (304) is disposed below the seismic shield (302).

2. The sampling device for highway engineering test detection according to claim 1, characterized in that, The seismic component (3) also includes a sleeve (301) disposed on the surface of the sleeve in the sampling component (2), and the seismic cover (302) slides vertically on the surface of the sleeve (301).

3. The sampling device for highway engineering test detection according to claim 2, characterized in that, A spring (303) is provided on the surface of the sleeve (301). The lower end of the spring (303) is fixedly connected to the shock absorber (302). The shock absorber (302) and the sleeve (301) are designed to fit together.

4. The sampling device for highway engineering test detection according to claim 1, characterized in that, The seismic shield (302) is a hollow flat-top conical design, and the lower end face of the seismic shield (302) is consistent with the lower end face of the sampling cylinder in the sampling component (2).

5. The sampling device for highway engineering test detection according to claim 1, characterized in that, The anti-seismic cover (302) has a through groove (306) inside, and the fulcrum (304) is located in the through groove (306). The through groove (306) is designed at an angle.

6. The sampling device for highway engineering test detection according to claim 5, characterized in that, A compression pad (305) is provided on the upper inner side of the through groove (306), and the lower end of the compression pad (305) is fixedly connected to the fulcrum (304).

7. The sampling device for highway engineering test detection according to claim 1, characterized in that, The fulcrum (304) is L-shaped and is made of stainless steel.

8. The sampling device for highway engineering test detection according to claim 1, characterized in that, The sampling component (2) includes two vertical rods disposed above the base plate (1). A platform is fixedly connected between the top ends of the two lead rods. A first motor is fixedly connected above the platform. The output end of the first motor passes through the bottom of the platform and is fixedly connected to a lead rod. A movable plate is disposed on the surface of the lead rod through a threaded sleeve. The movable plate slides on the surface of the two vertical rods. A second motor is disposed in front of the movable plate. A sleeve is located in front of the movable plate and below the second motor. The output end of the second motor passes through the sleeve and is fixedly connected to a sampling cylinder. The sampling cylinder is located in the sleeve.

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