Highway engineering sampling device
By designing support structures and auxiliary components, the stability problem of concrete core drilling machines during sampling was solved, enabling more efficient sampling operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 德州市公路事业发展中心庆云分中心
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-21
AI Technical Summary
Existing concrete core drilling machines suffer from poor stability during sampling due to motor vibration, which increases the difficulty of operation and workload.
A sampling device for highway engineering was designed, including a sampling cylinder, a drive motor and a support structure. The stability is improved by using columns, bases and return springs, and the base is leveled by auxiliary components such as moving wheels and screws to ensure that the sampling cylinder samples vertically.
It improves the stability and ease of operation of the sampling device, reduces the negative impact of motor vibration on the sampling work, and reduces the difficulty of operation and workload.
Smart Images

Figure CN224152074U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of highway engineering testing equipment, specifically a highway engineering sampling device. Background Technology
[0002] A concrete core drill is a device used to drill cores from materials such as concrete and asphalt concrete. It is mainly used for compressive and flexural tests. Therefore, core drills can also be used for sampling and testing in highway engineering.
[0003] However, when users use a handheld coring machine for sampling, the vibration generated by the motor can affect the stability of the machine, requiring users to exert considerable force to maintain its stability. This increases the difficulty of operation and the workload of coring. To address these issues, we propose a highway engineering sampling device. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a highway engineering sampling device, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a highway engineering sampling device, comprising: a sampling cylinder and a drive motor for sampling, and a support structure. The support structure includes a base, a column fixedly installed on the upper surface of the base, a slide block slidably disposed on the column, a drive motor fixedly installed on the top surface of the slide block, a sampling cylinder disposed below the slide block and fixedly connected to the output shaft of the drive motor, a fixing rod fixedly installed inside the column, and a dustproof plate disposed on the column, a return spring disposed between the slide block and the base, a handle fixedly installed on the slide block, and an auxiliary component disposed on the base. The auxiliary component includes a moving wheel disposed on the bottom surface of the base, a level ruler disposed on the top surface of the base, and a screw threadedly connected to the base. A turntable is fixedly installed at the upper end of the screw, and a foot is fixedly installed at the lower end of the screw.
[0006] Preferably, the slide has a through hole, and the slide is engaged with the fixing rod through the through hole.
[0007] Preferably, a stop block is fixedly installed at the upper end of the column to prevent the slide from detaching.
[0008] Preferably, the dustproof plate includes a bottom plate, a middle plate, and a top plate. The bottom plate is fixedly connected to the base, the top plate is fixedly connected to the slide, and the bottom plate is slidably connected to the top plate through the middle plate.
[0009] Preferably, the bottom plate and the top plate are both L-shaped structures, and the middle plate is a Z-shaped structure.
[0010] Preferably, the two ends of the return spring are fixedly connected to the slide and the base respectively, and the fixing rod is located in the cavity inside the return spring.
[0011] Preferably, a limiting block is fixedly installed on the unthreaded surface of the screw, and the limiting block is located above the base.
[0012] Preferably, a knob is provided on the upper surface of the turntable, and the knob is set off from the center of the turntable.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This highway engineering sampling device integrates the sampling cylinder and the drive motor on the slide. When the drive motor is used to sample through the sampling cylinder, the slide can be supported by the column and the base, which improves the stability of the overall structure and eliminates the negative impact of the vibration of the drive motor, so as to ensure the sampling work.
[0015] 2. The highway engineering sampling device has auxiliary components added to the support structure. The moving wheels can be used to improve the flexibility of the overall device. The screw and the base are connected to the base through the thread on the screw surface. Therefore, the screw can be rotated and used with a level to level the base, so that the sampling tube can be sampled vertically. This ensures that the sampling tube is subjected to uniform force and avoids lateral force from causing overload of the drive motor or accelerated wear of the sampling tube. Attached Figure Description
[0016] Figure 1 This is an isometric view of the overall structure of this utility model;
[0017] Figure 2 This is a side view of the overall structure of this utility model;
[0018] Figure 3 This is an exploded view of the slide structure of this utility model;
[0019] Figure 4 This is a cross-sectional view of the overall structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the dustproof panel structure of this utility model.
[0021] In the diagram: 1. Sampling cylinder; 2. Drive motor; 3. Support structure; 31. Base; 32. Column; 33. Stop block; 34. Fixing rod; 35. Slide seat; 36. Handle; 37. Dustproof plate; 371. Base plate; 372. Middle plate; 373. Top plate; 38. Return spring; 4. Auxiliary components; 41. Moving wheel; 42. Screw; 43. Foot; 44. Turntable; 45. Level; 46. Limit block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-5 A highway engineering sampling device includes: a sampling cylinder 1 for sampling, a drive motor 2, and a support structure 3. The support structure 3 includes a base 31, a column 32 fixedly mounted on the upper surface of the base 31, a slide block 35 slidably mounted on the column 32, a drive motor 2 fixedly mounted on the top surface of the slide block 35, a sampling cylinder 1 located below the slide block 35, and the sampling cylinder 1 fixedly connected to the output shaft of the drive motor 2. A fixing rod 34 is fixedly mounted inside the column 32, and a dustproof plate 37 is also provided on the column 32. A return spring 38 is provided between the slide block 35 and the base 31. A handle 36 is fixedly mounted on the slide block 35, and an auxiliary component 4 is provided on the base 31. A through hole is provided on the slide block 35, and the slide block 35 cooperates with the fixing rod 34 through the through hole. The upper end of the column 32 is fixedly mounted with... There is a stop 33 to prevent the slide 35 from disengaging. The dustproof plate 37 includes a base plate 371, a middle plate 372 and a top plate 373. The base plate 371 is fixedly connected to the base 31, and the top plate 373 is fixedly connected to the slide 35. The base plate 371 is slidably connected to the top plate 373 through the middle plate 372. The base plate 371 and the top plate 373 are both L-shaped structures, and the middle plate 372 is a Z-shaped structure. Therefore, the dustproof plate 37 can change back and forth between the unfolded and retracted states, thus avoiding excessive dust from entering the interior of the return spring 38 during sampling, and ensuring the elastic performance of the return spring 38. The two ends of the return spring 38 are fixedly connected to the slide 35 and the base 31 respectively. The fixing rod 34 is located in the cavity inside the return spring 38. The fixing rod 34 can also prevent the return spring 38 from being excessively deformed.
[0024] The auxiliary component 4 includes a movable wheel 41 set on the bottom surface of the base 31, a level 45 set on the top surface of the base 31, and a screw 42 threadedly connected to the base 31. A turntable 44 is fixedly installed on the upper end of the screw 42, and a foot 43 is fixedly installed on the lower end of the screw 42. A limit block 46 is fixedly installed on the unthreaded surface of the screw 42. The limit block 46 is located above the base 31. A knob is set on the upper surface of the turntable 44, and the knob is set off from the center of the turntable 44 to appropriately increase the torque of the turntable 44 when rotating, which is convenient for users to operate.
[0025] Working principle: A column 32 is fixed on the base 31, and a slide block 35 is slidably mounted on the column 32. The sampling cylinder 1 and the drive motor 2 are fixed on the slide block 35. A fixing rod 34 is set on the column 32 to maintain the sliding connection between the slide block 35 and the column 32. A return spring 38 is also set between the slide block 35 and the column 32 for further connection. Therefore, during actual sampling, the user can push down the slide block 35 through the handle 36 to start the drive motor 2 to use the sampling cylinder 1 for sampling. After sampling, the elasticity of the return spring 38 can meet the user's need to pull up the sampling cylinder 1 to facilitate its removal. Rotating the turntable 44 causes the screw 42 to drive the base foot 43 to rotate, making the base foot 43 contact the ground. This restricts the movement of the moving wheel 41 and, in conjunction with the level 45, adjusts the level of the base 31 so that the sampling cylinder 1 can be sampled vertically.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A highway engineering sampling device, characterized by, include: The sampling cylinder (1), drive motor (2), and support structure (3) are used for sampling. The support structure (3) includes a base (31), a column (32) is fixedly installed on the upper surface of the base (31), a slide block (35) is slidably arranged on the column (32), the drive motor (2) is fixedly installed on the top surface of the slide block (35), the sampling cylinder (1) is arranged below the slide block (35), and the sampling cylinder (1) is fixedly connected to the output shaft of the drive motor (2). A fixing rod (34) is fixedly installed inside the column (32), and a dustproof plate (37) is also provided on the column (32). A return spring (38) is provided between the slide block (35) and the base (31). A handle (36) is also fixedly installed on the slide block (35), and an auxiliary component (4) is also provided on the base (31). The auxiliary component (4) includes a movable wheel (41) set on the bottom surface of the base (31), a level (45) set on the top surface of the base (31), and a screw (42) threadedly connected to the base (31). A turntable (44) is fixedly installed on the upper end of the screw (42), and a foot (43) is fixedly installed on the lower end of the screw (42).
2. A highway engineering sampling device according to claim 1, characterised in that, The slide (35) has a through hole, and the slide (35) cooperates with the fixing rod (34) through the through hole.
3. A highway engineering sampling device according to claim 1, wherein, The upper end of the column (32) is fixedly equipped with a stop (33) to prevent the slide (35) from falling off.
4. A highway engineering sampling device according to claim 1, wherein, The dustproof plate (37) includes a bottom plate (371), a middle plate (372) and a top plate (373). The bottom plate (371) is fixedly connected to the base (31), and the top plate (373) is fixedly connected to the slide (35). The bottom plate (371) is slidably connected to the top plate (373) through the middle plate (372).
5. A highway engineering sampling device according to claim 4, wherein, The bottom plate (371) and the top plate (373) are both L-shaped structures, and the middle plate (372) is a Z-shaped structure.
6. A highway engineering sampling device according to claim 1, wherein, The two ends of the return spring (38) are fixedly connected to the slide (35) and the base (31) respectively, and the fixing rod (34) is located in the cavity inside the return spring (38).
7. A highway engineering sampling device according to claim 1, wherein, A limiting block (46) is fixedly installed on the unthreaded surface of the screw (42), and the limiting block (46) is located above the base (31).
8. A highway engineering sampling device according to claim 1, wherein, A knob is provided on the upper surface of the turntable (44), and the knob is set off from the center of the turntable (44).