A detection sampling device for road construction

By using a servo motor-driven rotating shaft and lifting support assembly, the problems of difficulty in verticalizing the sampling device and time-consuming drill bit replacement in existing devices are solved, realizing automatic vertical holding and rapid drill bit switching, thus improving sampling efficiency and flexibility.

CN224399012UActive Publication Date: 2026-06-23GUANGXI JIANGCHU CONSTRUCTION LABOR SERVICE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI JIANGCHU CONSTRUCTION LABOR SERVICE CO LTD
Filing Date
2025-04-15
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing road construction testing and sampling devices require workers to hold the equipment by hand to drill holes for sampling, which makes it inconvenient for long-term use and makes it difficult to ensure the verticality of the sampling holes. In addition, changing the drill bit is time-consuming and affects the sampling efficiency.

Method used

The device employs a servo motor-driven rotating shaft and a detachable sampling assembly, combined with a lifting support assembly and a spring structure, to achieve automatic vertical holding and quick drill bit replacement, and is used for collecting cylindrical and powder samples respectively.

Benefits of technology

The device automatically maintains verticality during sampling, reducing manpower consumption and improving sampling efficiency and flexibility. It can quickly switch drill bits to complete the collection of different types of samples.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of detection sampling, and disclose a kind of detection sampling device for road construction, including power component, the both sides of power component bottom are uniformly connected with lifting support component, the power component includes first fixed plate, the both sides of first fixed plate top are uniformly connected with U type down pressure handle, the top of first fixed plate is fixedly connected with servo motor, the output shaft of servo motor is fixedly connected with transmission rotating shaft;The utility model when carrying out sampling work, worker only needs to hold U type down pressure handle and press down, so that lifting plate and lifting limit plate move to the bottom of square telescopic groove, and then make spring be compressed, equipment can be kept perpendicular to road under the positioning of lifting support component, worker does not need to spend a lot of strength to ensure that equipment is perpendicular to road, after completion, worker cancels the pressure under spring self resilience effect, equipment returns to original position.
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Description

Technical Field

[0001] This utility model relates to the field of detection and sampling technology, and more specifically to a detection and sampling device for road construction. Background Technology

[0002] Sampling and testing equipment for road construction is an indispensable tool in the field of road construction. It is used to obtain soil or material samples from the road construction site for subsequent quality testing and analysis. It typically includes a housing, a lifting frame, a lifting device, a motor housing, a rotating rod, and a sampling device. The lifting device controls the longitudinal movement of the rotating rod, which is equipped with a detachable sampling device and drill bit.

[0003] Inadequacies of existing technology: In the process of using road construction testing and sampling devices, workers often directly drill holes in the road by hand, which makes it inconvenient for users to use for a long time and cannot guarantee the verticality of the sampling holes. In addition, when sampling, existing equipment needs to take cylindrical and powder samples according to different sampling requirements. Existing equipment requires a lot of time to change drill bits, which makes it difficult to guarantee sampling efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a road construction testing and sampling device to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a road construction detection and sampling device, comprising a power component, wherein lifting support components are fixedly connected to both sides of the bottom of the power component, the power component includes a first fixed plate, wherein U-shaped pressing handles are fixedly connected to both sides of the top of the first fixed plate, a servo motor is fixedly connected to the top of the first fixed plate, a transmission rotating shaft is fixedly connected to the output shaft of the servo motor, and a sampling component is fixedly connected to the bottom of the transmission rotating shaft.

[0006] Furthermore, the lifting support assembly includes a lifting positioning plate, a stable support plate is fixedly connected to the side of the lifting positioning plate away from the first fixed plate, a square telescopic groove is provided on the top of the lifting positioning plate, a spring is fixedly connected to the bottom of the square telescopic groove, a lifting limit plate is fixedly connected to the top of the spring, and a lifting plate is fixedly connected to the top of the lifting limit plate.

[0007] Furthermore, the sampling assembly includes a sampling sleeve, a first sampling blade is fixedly connected to the bottom of the sampling sleeve, a positioning notch is provided on the outer side of the sampling sleeve, a snap-fit ​​sampling shaft is provided on the inner side of the sampling sleeve, a second sampling blade is fixedly connected to the bottom of the snap-fit ​​sampling shaft, and an arc-shaped notch is provided on the outer side of the snap-fit ​​sampling shaft.

[0008] Furthermore, the top of the lifting plate is fixedly connected to the bottom of the first fixed plate, and the connection position of the servo motor to the first fixed plate is located in the middle of the top of the first fixed plate.

[0009] Furthermore, the internal cross-sectional dimensions of the square telescopic groove are fitted with the dimensions of the bottom of the lifting limit plate, and the opening dimensions of the top of the square telescopic groove are fitted with the cross-sectional dimensions of the lifting plate.

[0010] Furthermore, the outer diameter of the sampling sleeve is the same as the outer diameter of the snap-fit ​​sampling shaft, and the width of the positioning notch is clearance-fitted with the width between two adjacent arc-shaped notches.

[0011] Furthermore, the inner diameter of the arc-shaped notch is clearance-fitted with the inner diameter of the sampling sleeve.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. When performing sampling, the worker only needs to hold the U-shaped downward handle and press down to move the lifting plate and the lifting limit plate to the bottom of the square telescopic groove. This compresses the spring, and the equipment remains perpendicular to the road under the positioning of the lifting support assembly. The worker does not need to expend a lot of effort to ensure that the equipment is perpendicular to the road. After completion, the worker can release the downward pressure and the equipment will return to its original position under the action of the spring's own rebound force.

[0014] 2. In this invention, when collecting cylindrical samples, the sampling shaft is separated from the first sampling blade. A servo motor drives the transmission shaft to rotate, which in turn drives the sampling sleeve to rotate. The first sampling blade cuts through the road surface to complete the collection of cylindrical samples. When collecting powder samples, the second sampling blade is installed into the sampling sleeve. By repeating the above steps, the sampling sleeve rotates, and the positioning notch and the arc-shaped notch work together to make the sampling shaft rotate synchronously to complete the collection of powder samples. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the power component structure of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the lifting support assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the sampling component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the assembly structure of the sampling component of this utility model.

[0020] The attached figures are labeled as follows: 1. Power assembly; 101. First fixed plate; 102. U-shaped downward pressure handle; 103. Servo motor; 104. Transmission rotation shaft; 2. Lifting support assembly; 201. Lifting positioning plate; 202. Stabilizing support plate; 203. Square telescopic groove; 204. Spring; 205. Lifting limit plate; 206. Lifting plate; 3. Sampling assembly; 301. Sampling sleeve; 302. First sampling blade; 303. Snap-fit ​​sampling shaft; 304. Second sampling blade; 305. Positioning notch; 306. Arc-shaped notch. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The road construction testing and sampling device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1 to 5 This utility model provides: a road construction testing and sampling device, including a power component 1, with lifting support components 2 fixedly connected to both sides of the bottom of the power component 1, the power component 1 including a first fixed plate 101, with U-shaped downward handles 102 fixedly connected to both sides of the top of the first fixed plate 101, a servo motor 103 fixedly connected to the top of the first fixed plate 101, a transmission rotating shaft 104 fixedly connected to the output shaft of the servo motor 103, and a sampling component 3 fixedly connected to the bottom of the transmission rotating shaft 104.

[0023] In a preferred embodiment, the lifting support assembly 2 includes a lifting positioning plate 201. A stable support plate 202 is fixedly connected to the side of the lifting positioning plate 201 away from the first fixed plate 101. A square telescopic groove 203 is provided on the top of the lifting positioning plate 201. A spring 204 is fixedly connected to the bottom of the square telescopic groove 203. A lifting limit plate 205 is fixedly connected to the top of the spring 204. A lifting plate 206 is fixedly connected to the top of the lifting limit plate 205. When performing sampling work, the worker only needs to hold the U-shaped pressing handle 102 and press down, so that the lifting plate 206 and the lifting limit plate 205 move towards the bottom of the square telescopic groove 203, thereby compressing the spring 204. Under the positioning of the lifting support assembly 2, the equipment is kept perpendicular to the road. The worker does not need to spend a lot of effort to ensure that the equipment is perpendicular to the road. After completion, the worker can release the pressure, and the equipment returns to its original position under the action of the spring 204's own rebound force.

[0024] In a preferred embodiment, the sampling assembly 3 includes a sampling sleeve 301, a first sampling blade 302 fixedly connected to the bottom of the sampling sleeve 301, a positioning notch 305 on the outer side of the sampling sleeve 301, a snap-fit ​​sampling shaft 303 on the inner side of the sampling sleeve 301, a second sampling blade 304 fixedly connected to the bottom of the snap-fit ​​sampling shaft 303, and an arc-shaped notch 306 on the outer side of the snap-fit ​​sampling shaft 303; when collecting cylindrical samples, the snap-fit ​​sampling shaft 303 is separated from the first sampling blade 302. The servo motor 103 drives the transmission rotating shaft 104 to rotate, which in turn drives the sampling sleeve 301 to rotate. The first sampling blade 302 cuts the road to complete the collection of cylindrical samples. When collecting powder, the second sampling blade 304 is installed into the sampling sleeve 301. The above steps are repeated so that when the sampling sleeve 301 rotates, the positioning notch 305 and the arc notch 306 cooperate to make the sampling shaft 303 rotate synchronously to complete the collection of powder samples.

[0025] In a preferred embodiment, the top of the lifting plate 206 is fixedly connected to the bottom of the first fixed plate 101, and the connection position of the servo motor 103 and the first fixed plate 101 is located in the middle of the top of the first fixed plate 101.

[0026] In a preferred embodiment, the internal cross-sectional dimensions of the square telescopic groove 203 are clearance-fitted with the dimensions of the bottom of the lifting limit plate 205, and the top opening dimensions of the square telescopic groove 203 are clearance-fitted with the cross-sectional dimensions of the lifting plate 206.

[0027] In a preferred embodiment, the outer diameter of the sampling sleeve 301 is the same as the outer diameter of the snap-fit ​​sampling shaft 303, and the width of the positioning notch 305 is clearance-fitted with the width between two adjacent arc-shaped notches 306.

[0028] In a preferred embodiment, the inner diameter of the arc-shaped notch 306 is clearance-fitted with the inner diameter of the sampling sleeve 301.

[0029] The working principle of this utility model is as follows: When performing sampling, the worker only needs to hold the U-shaped downward pressure handle 102 and press it down, so that the lifting plate 206 and the lifting limit plate 205 move towards the bottom of the square telescopic groove 203, thereby compressing the spring 204. Under the positioning of the lifting support component 2, the equipment can be kept perpendicular to the road without the worker having to spend a lot of effort to ensure that the equipment is perpendicular to the road. After completion, the worker can release the downward pressure and the equipment will return to its original position under the action of the spring 204's own rebound force.

[0030] When collecting cylindrical samples, the sampling shaft 303 is separated from the first sampling blade 302. The servo motor 103 drives the transmission rotating shaft 104 to rotate, which in turn drives the sampling sleeve 301 to rotate. The first sampling blade 302 cuts the road to complete the collection of cylindrical samples. When collecting powder samples, the second sampling blade 304 is installed into the sampling sleeve 301. The above steps are repeated so that during the rotation of the sampling sleeve 301, the positioning notch 305 and the arc notch 306 cooperate to make the sampling shaft 303 rotate synchronously to complete the collection of powder samples.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detection sampling device for road construction, comprising a power assembly (1), characterized in that: The power assembly (1) has lifting support assemblies (2) fixedly connected to both sides of its bottom. The power assembly (1) includes a first fixed plate (101). U-shaped downward handles (102) are fixedly connected to both sides of the top of the first fixed plate (101). A servo motor (103) is fixedly connected to the top of the first fixed plate (101). A transmission rotation shaft (104) is fixedly connected to the output shaft of the servo motor (103). A sampling device is fixedly connected to the bottom of the transmission rotation shaft (104). The sampling component (3) includes a sampling sleeve (301), a first sampling blade (302) is fixedly connected to the bottom of the sampling sleeve (301), a positioning notch (305) is provided on the outer side of the sampling sleeve (301), a snap-fit ​​sampling shaft (303) is provided on the inner side of the sampling sleeve (301), a second sampling blade (304) is fixedly connected to the bottom of the snap-fit ​​sampling shaft (303), and an arc-shaped notch (306) is provided on the outer side of the snap-fit ​​sampling shaft (303).

2. The detection sampling device for road construction according to claim 1, characterized in that: The lifting support assembly (2) includes a lifting positioning plate (201). A stable support plate (202) is fixedly connected to the side of the lifting positioning plate (201) away from the first fixed plate (101). A square telescopic groove (203) is provided on the top of the lifting positioning plate (201). A spring (204) is fixedly connected to the bottom of the square telescopic groove (203). A lifting limit plate (205) is fixedly connected to the top of the spring (204). A lifting plate (206) is fixedly connected to the top of the lifting limit plate (205).

3. The detection sampling device for road construction according to claim 2, characterized in that: The top of the lifting plate (206) is fixedly connected to the bottom of the first fixed plate (101), and the connection position of the servo motor (103) and the first fixed plate (101) is located in the middle of the top of the first fixed plate (101).

4. The detection sampling device for road construction according to claim 2, characterized in that: The internal cross-sectional dimensions of the square telescopic groove (203) are fitted with the bottom dimensions of the lifting limit plate (205) with a clearance fit, and the top opening dimensions of the square telescopic groove (203) are fitted with the cross-sectional dimensions of the lifting plate (206) with a clearance fit.

5. The detection sampling device for road construction according to claim 1, characterized in that: The outer diameter of the sampling sleeve (301) is the same as the outer diameter of the snap-fit ​​sampling shaft (303), and the width of the positioning notch (305) is clearance-fitted with the width between two adjacent arc-shaped notches (306).

6. The detection sampling device for road construction according to claim 1, characterized in that: The inner diameter of the arc-shaped notch (306) is clearance-fitted with the inner diameter of the sampling sleeve (301).