Core drilling sampling device
By designing the limiting component, the problem of drill barrel displacement during drilling was solved, and the vertical positioning of the drill core sampling tube was achieved, thus improving the core sampling effect and the stability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN HUAFU ENG TESTING CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional core sampling devices are prone to drill barrel displacement during drilling, which affects the quality of core samples and test results.
The system employs a limiting assembly, including a drive motor, a driving bevel gear, a driven bevel gear, and a threaded rod. The drive motor drives the driving bevel gear and the driven bevel gear to mesh, causing the threaded rod to rotate. The ejector plate then drives the ejector rod and the arc-shaped limiting plate to ensure that the core sampling tube remains vertical.
It effectively prevents the core sampling tube from tilting, improves the core sampling effect and device stability, and ensures the quality of the core sample.
Smart Images

Figure CN224189588U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of core sampling technology, and in particular to a core sampling device. Background Technology
[0002] After the construction of roads such as asphalt roads and cement roads in residential areas is completed, it is necessary to test and accept the thickness of the road. Currently, this is generally done by randomly sampling and testing the samples. When sampling, a core drilling tool is needed to drill core samples from the road surface.
[0003] Traditional road core sampling devices generally include a drive unit and a drill barrel. The drive unit rotates the drill barrel to extract core samples from the road surface. However, in actual use, due to the lack of positioning of the drill barrel, it is easy for the drill barrel to deviate at the beginning and during drilling, which affects the quality of the extracted core samples and the test results. Therefore, there is a need to provide a core sampling device to solve the above problems. Utility Model Content
[0004] The main objective of this invention is to provide a core sampling device that can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A core sampling device includes a movable support frame, a lifting cylinder is provided at the top of the movable support frame, a connecting plate is provided at the bottom of the lifting cylinder, a driving component, a rotating disk and a core sampling tube are provided in the middle of the connecting plate, and a limit component is provided at the bottom of the movable support frame.
[0007] The limiting assembly includes a drive motor, the bottom of which is provided with a driving bevel gear and a driven bevel gear, and the driven bevel gear is provided with a threaded rod, an ejector plate and an ejector rod in the middle of its side, and an arc-shaped limiting plate is provided at one end of the ejector rod.
[0008] Preferably, the bottom center of the movable support frame has a through groove, and one side of the through groove extends through the middle of the side of the movable support frame. An installation groove is provided on the inner wall of one side of the through groove, and there are two installation grooves, which are symmetrically distributed on both sides of the through groove. A partition plate is installed on the inner wall of the end of the installation groove away from the through groove by bolts, and there are two partition plates, which are symmetrically distributed on both sides of the inner wall of the installation groove.
[0009] Preferably, a drive motor is bolted to the bottom inner wall of the movable support frame, and there are two drive motors, which are symmetrically distributed on both sides of the bottom inner wall of the movable support frame. The output end of the drive motor is connected to a driving bevel gear, and the driving bevel gear is located inside the mounting groove. A driven bevel gear is provided on the side of the driving bevel gear, and the driven bevel gear meshes with the driving bevel gear.
[0010] Preferably, a threaded rod is engaged in the middle of the driven bevel gear, and the end of the threaded rod near the driven bevel gear is mounted in the middle of the mounting groove via a bearing. An ejector plate is sleeved on the outside of the threaded rod, and an ejector rod is fixedly connected to the side of the ejector plate. The ejector rod is sleeved on the outside of the threaded rod, and the ejector plate is connected to the threaded rod via threads.
[0011] Preferably, the end of the ejector rod away from the ejector plate is slidably connected to the middle of the partition plate away from the middle of the mounting groove, and the ejector rod passes through the partition plate. The end of the ejector rod away from the ejector plate is bolted to an arc-shaped limiting plate, and the arc-shaped limiting plate is located in the middle of the through groove. The side of the arc-shaped limiting plate away from the ejector rod is in contact with the outer wall of the core sampling tube.
[0012] Preferably, the top of the ejector plate is fixedly connected to a limiting slide rail, and there are four limiting slide rails, which are symmetrically distributed on the top and bottom of the ejector plate. The ejector plate is slidably connected to the inside of the mounting groove, and a limiting slide groove is opened on the inner wall of the mounting groove. The limiting slide rail is slidably connected to the inside of the limiting slide groove, and the limiting slide groove and the limiting slide rail are correspondingly set.
[0013] Preferably, a lifting cylinder is installed on the top of the movable support frame, and a connecting plate is installed at the bottom of the lifting cylinder by bolts. The connecting plate is slidably connected inside the movable support frame, and a driving component is installed in the middle of the top of the connecting plate by bolts. The output end of the driving component is connected to the rotating disk for transmission, and a core sampling tube is installed in the middle of the bottom of the rotating disk. The core sampling tube is correspondingly arranged with the through slot.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] In this invention, a limiting component is used to limit the core sampling tube in the core drill. A drive motor drives the active bevel gear, the driven bevel gear, and the threaded rod to rotate, causing the ejector plate to push out the arc-shaped limiting plate. The two arc-shaped limiting plates are respectively placed on both sides of the core sampling tube, thereby limiting the core sampling tube and keeping it in a vertical position to prevent it from tilting and affecting the core sampling effect. Attached Figure Description
[0016] Figure 1This is a first-person perspective perspective view of the entire device of this utility model;
[0017] Figure 2 This is a second-view perspective perspective view of the entire device of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the limiting component of this utility model;
[0019] Figure 4 This is a schematic diagram of the internal structure of the mounting slot of this utility model.
[0020] In the diagram: 1. Movable support frame; 2. Lifting cylinder; 3. Connecting plate; 4. Driving component; 5. Rotary disk; 6. Core sampling tube; 7. Limiting assembly; 8. Mounting slot; 9. Divider plate; 10. Drive motor; 11. Driving bevel gear; 12. Driven bevel gear; 13. Ejector plate; 14. Ejector rod; 15. Limiting slide rail; 16. Limiting slide groove; 17. Arc-shaped limiting plate; 18. Through slot; 19. Threaded rod. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] Please see Figure 1 , Figure 2 , Figure 3 As shown, a core sampling device includes a movable support frame 1. A lifting cylinder 2 is provided at the top of the movable support frame 1, and a connecting plate 3 is provided at the bottom of the lifting cylinder 2. A driving component 4, a rotating disk 5, and a core sampling tube 6 are provided in the middle of the connecting plate 3. A limit component 7 is provided at the bottom of the movable support frame 1. The lifting cylinder 2 is installed at the top of the movable support frame 1, and the connecting plate 3 is installed at the bottom of the lifting cylinder 2 by bolts. The connecting plate 3 is slidably connected to the inside of the movable support frame 1. The driving component 4 is installed at the top middle of the connecting plate 3 by bolts. The output end of the driving component 4 is connected to the rotating disk 5 for transmission. The core sampling tube 6 is installed at the bottom middle of the rotating disk 5. The core sampling tube 6 is correspondingly arranged with the through groove 18.
[0023] The limiting assembly 7 includes a drive motor 10. The bottom of the drive motor 10 is provided with a driving bevel gear 11 and a driven bevel gear 12. A threaded rod 19, an ejector plate 13, and an ejector rod 14 are provided on the middle of the side of the driven bevel gear 12. An arc-shaped limiting plate 17 is provided at one end of the ejector rod 14. A through groove 18 is opened in the middle of the bottom of the movable support frame 1, and one side of the through groove 18 extends through the middle of the side of the movable support frame 1. Two mounting grooves 8 are opened on the inner wall of one side of the through groove 18, symmetrically distributed on both sides of the through groove 18. The mounting groove 8 furthest from the through groove... A partition plate 9 is bolted to one end of the inner wall of the mounting groove 8. There are two partition plates 9, which are symmetrically distributed on both sides of the inner wall of the mounting groove 8. A drive motor 10 is bolted to the bottom inner wall of the movable support frame 1. There are two drive motors 10, which are symmetrically distributed on both sides of the bottom inner wall of the movable support frame 1. The output end of the drive motor 10 is connected to the drive bevel gear 11. The drive bevel gear 11 is located inside the mounting groove 8. A driven bevel gear 12 is provided on the side of the drive bevel gear 11. The driven bevel gear 12 meshes with the drive bevel gear 11.
[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a threaded rod 19 is engaged in the middle of the driven bevel gear 12, and one end of the threaded rod 19 near the driven bevel gear 12 is mounted in the middle of the mounting groove 8 via a bearing. An ejector plate 13 is sleeved on the outside of the threaded rod 19, and an ejector rod 14 is fixedly connected to the side of the ejector plate 13. The ejector rod 14 is sleeved on the outside of the threaded rod 19, and the ejector plate 13 is connected to the threaded rod 19 via threads. The end of the ejector rod 14 away from the ejector plate 13 is slidably connected to the middle of the partition plate 9 away from the middle of the mounting groove 8, and the ejector rod 14 passes through the partition plate 9. An arc-shaped limiting plate 17 is bolted to the end of the ejector rod 14 away from the ejector plate 13, and the arc-shaped limiting plate 17 is located in the middle of the through groove 18. The side of the arc-shaped limiting plate 17 away from the ejector rod 14 contacts the outer wall of the core sampling tube 6. A limiting slide rail 15 is fixedly connected to the top of the ejector plate 13. There are four limiting slide rails 15, which are symmetrically distributed at the top and bottom of the ejector plate 13. The ejector plate 13 is slidably connected to the inside of the mounting groove 8, and a limiting slide groove 16 is opened on the inner wall of the mounting groove 8. The limiting slide rail 15 is slidably connected to the inside of the limiting slide groove 16, and the limiting slide groove 16 is correspondingly set with the limiting slide rail 15. The limiting component 7 is used to limit the core sampling tube 6 in the core. The drive motor 10 drives the active bevel gear 11, the driven bevel gear 12 and the threaded rod 19 to rotate, so that the ejector plate 13 drives the ejector rod 14 to eject the arc-shaped limiting plate 17. The two arc-shaped limiting plates 17 are respectively set on both sides of the core sampling tube 6, thereby limiting the core sampling tube 6 and keeping the core sampling tube 6 in a vertical state to prevent the core sampling tube 6 from tilting and affecting the core sampling effect.
[0025] It should be noted that this utility model is a core sampling device. In use, the core sampling tube 6 is installed at the bottom of the rotating disk 5. The connecting plate 3 is lowered by the lifting cylinder 2. During the descent, the rotating disk 5 and the core sampling tube 6 are rotated by the driving component 4, thus enabling the core sampling tube 6 to perform core drilling. Simultaneously, the driving motor 10 drives the driving bevel gear 11 and the driven bevel gear 12 to rotate. The driven bevel gear 12 meshes with the driving bevel gear 11. A threaded rod 19 is installed in the middle of the driven bevel gear 12, causing the ejector plate 13 to drive the ejector rod 14 along the outer edge of the threaded rod 19. The wall moves away from the driven bevel gear 12, causing the ejector rod 14 to move the arc-shaped limiting plate 17. The side of the arc-shaped limiting plate 17 away from the ejector rod 14 contacts the outer wall of the core sampling tube 6. Two sets of arc-shaped limiting plates 17 are provided on both sides of the core sampling tube 6, thereby achieving a limiting connection of the core sampling tube 6, so that the core sampling tube 6 is set vertically in the middle of the through groove 18. The outer wall of the ejector plate 13 is equipped with a limiting slide rail 15, which is slidably connected inside the limiting slide groove 16, thereby achieving a limiting connection between the ejector plate 13 and the ejector rod 14, and improving the stability of the device.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A coring device comprising a mobile support frame (1), characterized in that: The top of the mobile support frame (1) is provided with a lifting cylinder (2), and the bottom of the lifting cylinder (2) is provided with a connecting plate (3). The middle of the connecting plate (3) is provided with a driving component (4), a rotating disk (5) and a core sampling tube (6). The bottom of the mobile support frame (1) is provided with a limit component (7). The limiting component (7) includes a drive motor (10), the bottom of which is provided with a driving bevel gear (11) and a driven bevel gear (12), and the driven bevel gear (12) is provided with a threaded rod (19), an ejector plate (13) and an ejector rod (14) in the middle of its side, and an arc-shaped limiting plate (17) is provided at one end of the ejector rod (14).
2. A core sampling device according to claim 1, wherein: The bottom center of the movable support frame (1) has a through groove (18), and one side of the through groove (18) passes through the middle of the side of the movable support frame (1). An installation groove (8) is provided on the inner wall of one side of the through groove (18), and there are two installation grooves (8), which are symmetrically distributed on both sides of the through groove (18). A partition plate (9) is installed on the inner wall of the end of the installation groove (8) away from the through groove (18) by bolts, and there are two partition plates (9), which are symmetrically distributed on both sides of the inner wall of the installation groove (8).
3. A core sampling device according to claim 2, wherein: A drive motor (10) is bolted to the bottom inner wall of the movable support frame (1). There are two drive motors (10), which are symmetrically distributed on both sides of the bottom inner wall of the movable support frame (1). The output end of the drive motor (10) is connected to a drive bevel gear (11), and the drive bevel gear (11) is located inside the mounting groove (8). A driven bevel gear (12) is provided on the side of the drive bevel gear (11), and the driven bevel gear (12) meshes with the drive bevel gear (11).
4. A core sampling device according to claim 1, wherein: A threaded rod (19) is snapped into the middle of the driven bevel gear (12), and the end of the threaded rod (19) near the driven bevel gear (12) is mounted in the middle of the mounting groove (8) through a bearing. An ejector plate (13) is sleeved on the outside of the threaded rod (19), and an ejector rod (14) is fixedly connected to the side of the ejector plate (13). The ejector rod (14) is sleeved on the outside of the threaded rod (19), and the ejector plate (13) is connected to the threaded rod (19) through threads.
5. A core sampling device according to claim 4, wherein: The end of the ejector rod (14) away from the ejector plate (13) is slidably connected to the middle of the partition plate (9) away from the middle of the mounting groove (8), and the ejector rod (14) passes through the partition plate (9). The end of the ejector rod (14) away from the ejector plate (13) is bolted with an arc-shaped limiting plate (17), and the arc-shaped limiting plate (17) is located in the middle of the through groove (18). The side of the arc-shaped limiting plate (17) away from the ejector rod (14) is in contact with the outer wall of the core sampling tube (6).
6. A core sampling device according to claim 4, wherein: The top of the ejector plate (13) is fixedly connected to a limiting slide rail (15), and there are four limiting slide rails (15), which are symmetrically distributed on the top and bottom of the ejector plate (13). The ejector plate (13) is slidably connected to the inside of the mounting groove (8), and a limiting slide groove (16) is opened on the inner wall of the mounting groove (8). The limiting slide rail (15) is slidably connected to the inside of the limiting slide groove (16), and the limiting slide groove (16) and the limiting slide rail (15) are correspondingly set.
7. A core sampling device according to claim 1, wherein: The top of the mobile support frame (1) is equipped with a lifting cylinder (2), and the bottom end of the lifting cylinder (2) is equipped with a connecting plate (3) by bolts. The connecting plate (3) is slidably connected inside the mobile support frame (1), and the top middle of the connecting plate (3) is equipped with a driving component (4) by bolts. The output end of the driving component (4) is connected to the rotating disk (5) for transmission, and the bottom middle of the rotating disk (5) is equipped with a core sampling tube (6), which is correspondingly arranged with the through groove (18).