Drilling coring tool
By designing a combined structure for the drilling coring tool, the problem of existing tools being unable to take multiple samples simultaneously was solved, enabling efficient sampling at multiple depths and improving sampling efficiency and accuracy.
Patent Information
- Application Number
- CN202520799562.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-25
AI Technical Summary
Existing drilling and coring tools cannot simultaneously take multiple samples at different depths in the same location, resulting in inaccurate sampling and low efficiency.
A drilling and coring tool was designed, comprising a combination structure of a coring rod, a pressure plate, a connecting rod, an L-shaped support, a guide rod, a sliding plate, a sliding rod, and an inclined chute, to achieve multiple sampling operations. Through the cooperation of the pressure plate and the sliding rod, soil sampling at different depths can be achieved.
This enables multiple sampling operations at different depths in the same location, improving sampling efficiency and accuracy while shortening sampling time.
Smart Images
Figure CN223839111U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of geological exploration equipment technology, specifically a drilling and coring tool. Background Technology
[0002] Engineering geological investigation is a geological survey and research work conducted to identify the geological factors affecting engineering structures. The geological factors to be investigated include geological structure or geological formation: landforms, hydrogeological conditions, physical and mechanical properties of soil and rocks, natural (physical) geological phenomena and natural building materials, etc. During the geological engineering investigation process, core sampling is required.
[0003] Currently, existing geological exploration sampling often requires taking samples from different depths at the same location. In order to ensure the accuracy of sampling, multiple samples are often required to be taken and stored within the same depth. However, existing drilling core sampling tools cannot perform multiple sampling operations on soil at different depths at the same time, which has certain shortcomings. Therefore, we propose a drilling core sampling tool. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a drilling core sampling tool that solves the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a core drilling tool, comprising a core rod, a top cover fixedly installed on the top of the core rod, an installation rod slidably installed inside the top cover, a hammer plate fixedly installed at one end of the installation rod, several pressure plates arranged inside the core rod, connecting rods fixedly installed on the inner sides of the pressure plates, one end of the installation rod being fixedly connected to the top of one pressure plate, several through holes being opened around the core rod, an L-shaped bracket being fixedly installed at the bottom of the core rod on one side of the through holes, two guide rods being fixedly installed on the inner side of the L-shaped bracket, a sliding plate being slidably installed on the outer side of the guide rod, a core cylinder being fixedly installed on one side of the sliding plate, two connecting plates being fixedly installed on one side of the core cylinder, a sliding rod being fixedly installed on one side of the connecting plate, several push plates being fixedly installed at the bottom of the pressure plates, an inclined sliding groove being opened inside the push plate, and the sliding rod being slidably connected to the inclined sliding groove.
[0006] Preferably, a limiting force plate is fixedly installed on the outer side of the core rod.
[0007] Preferably, the bottom of the core-taking rod has a hollowed-out interior.
[0008] Preferably, a first handle is fixedly installed on both sides of the top of the core-taking rod, and a second handle is fixedly installed on both sides of the mounting rod.
[0009] Preferably, the slide plate has a hole inside that mates with the guide rod.
[0010] Preferably, a plug cone is installed on the internal thread at the bottom of the core rod.
[0011] This utility model provides a drilling core sampling tool, which has the following beneficial effects:
[0012] 1. This drilling core sampling tool, through the setting of pressure plate, connecting rod, L-shaped bracket, guide rod, slide plate, slide bar and inclined slide groove, can perform multiple sampling operations at different depths at the same time during the sampling process. The overall operation is convenient and fast, and the sampling efficiency is high, thereby effectively shortening the sampling time. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a cross-sectional view of the present invention;
[0015] Figure 3 This is a partial exploded view of the structure of this utility model;
[0016] Figure 4 This utility model Figure 2 Enlarged view of point A in the image.
[0017] In the diagram: 1. Core-taking rod; 2. Top cover; 3. Mounting rod; 4. Hammer plate; 5. Pressure plate; 6. Connecting rod; 7. L-shaped bracket; 8. Guide rod; 9. Slide plate; 10. Core-taking cylinder; 11. Through hole; 12. Connecting plate; 13. Slide rod; 14. Push plate; 15. Inclined slide groove; 16. First handle; 17. Second handle; 18. Limiting force plate; 19. Blocking cone. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Please see Figures 1 to 4This utility model provides a technical solution: a drilling core sampling tool, including a core sampling rod 1, a top cover 2 fixedly installed on the top of the core sampling rod 1, a plug cone 19 threadedly installed on the bottom of the core sampling rod 1, an installation rod 3 slidably installed inside the top cover 2, a hammer plate 4 fixedly installed at one end of the installation rod 3, several pressure plates 5 are provided inside the core sampling rod 1, a connecting rod 6 is fixedly installed on the inner side of the pressure plates 5, one end of the installation rod 3 is fixedly connected to the top of one pressure plate 5, several through holes 11 are opened inside the core sampling rod 1 around its perimeter, an L-shaped bracket 7 is fixedly installed at the bottom of the core sampling rod 1 on one side of the through holes 11, two guide rods 8 are fixedly installed on the inner side of the L-shaped bracket 7, and the outer side of the guide rods 8... A sliding plate 9 is slidably installed. The interior of the sliding plate 9 has a hole that mates with the guide rod 8. The guide rod 8 and the sliding plate 9 are used to guide and limit the core sampling cylinder 10. The core sampling cylinder 10 is fixedly installed on one side of the sliding plate 9. A cutting edge is provided on one side of the core sampling cylinder 10. Two connecting plates 12 are fixedly installed on one side of the core sampling cylinder 10. A sliding rod 13 is fixedly installed on one side of the connecting plate 12. Several push plates 14 are fixedly installed at the bottom of several pressure plates 5. The push plates 14 have inclined grooves 15 inside. The sliding rod 13 is slidably connected to the inclined grooves 15. By moving the push plates 14 downward, the sliding rod 13 and the core sampling cylinder 10 can be pushed outward by their inclination, and then the soil can be sampled through the core sampling cylinder 10.
[0020] A limiting force plate 18 is fixedly installed on the outer side of the core sampling rod 1. The function of the limiting force plate 18 is to limit the force on the core sampling rod 1 after it is inserted into the sampling hole. A first handle 16 is fixedly installed on both sides of the top of the core sampling rod 1, and a second handle 17 is fixedly installed on both sides of the mounting rod 3. The plug cone 19 can be removed from the bottom thread of the core sampling rod 1. The inside of the bottom of the core sampling rod 1 and the top of the plug cone 19 are provided with matching threads. After the plug cone 19 is removed, the inside of the bottom of the core sampling rod 1 is hollow. The hollow shape of the inside of the bottom of the core sampling rod 1 facilitates the drainage of mud or water that enters the core sampling rod 1, and avoids mud or sand remaining in the core sampling rod 1 and affecting the sampling. By installing the plug cone 19, it is possible to directly insert it into the soil when sampling relatively loose soil without pre-drilling a hole. The specific method depends on the actual situation.
[0021] In summary, when using this drilling core sampling tool, the core rod 1 is inserted into the pre-drilled core hole in the soil, and the limiting force plate 18 is positioned on the outside of the top of the core hole to apply force to the core rod 1. After ensuring the horizontality of the core rod 1, the thrust generated by pressing down the hammer plate 4 pushes the mounting rod 3 and several pressure plates 5 downward. When the pressure plate 5 moves downward, the inclined groove 15 at its bottom drives the sliding rod 13 and the core cylinder 10 to move outward. The core cylinder 10 can then be inserted into the soil at different depths to store the soil. The overall sampling is more convenient and faster. During the core sampling process, when the hammer plate 4 is not pressed down manually, a tool such as a hammer can be used to strike the hammer plate 4.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A core drilling tool, comprising a core rod (1), characterized in that: A top cover (2) is fixedly installed on the top of the core-taking rod (1). An installation rod (3) is slidably installed inside the top cover (2). A hammer plate (4) is fixedly installed at one end of the installation rod (3). Several pressure plates (5) are provided inside the core-taking rod (1). A connecting rod (6) is fixedly installed on the inner side of the pressure plates (5). One end of the installation rod (3) is fixedly connected to the top of one pressure plate (5). Several through holes (11) are opened inside the core-taking rod (1) around its perimeter. A hammer plate (4) is fixedly installed at the bottom of the core-taking rod (1) on one side of the through holes (11). An L-shaped bracket (7) is provided, with two guide rods (8) fixedly installed on the inner side of the L-shaped bracket (7). A slide plate (9) is slidably installed on the outer side of the guide rods (8). A core tube (10) is fixedly installed on one side of the slide plate (9). Two connecting plates (12) are fixedly installed on one side of the core tube (10). A sliding rod (13) is fixedly installed on one side of the connecting plate (12). Several push plates (14) are fixedly installed at the bottom of several pressure plates (5). An inclined sliding groove (15) is opened inside the push plate (14). The sliding rod (13) is slidably connected to the inclined sliding groove (15).
2. The drilling core sampling tool according to claim 1, characterized in that: A limiting force plate (18) is fixedly installed on the outer side of the core rod (1).
3. A drilling core sampling tool according to claim 1, characterized in that: The bottom of the core-taking rod (1) is hollow.
4. A drilling core sampling tool according to claim 1, characterized in that: The core-taking rod (1) has a first handle (16) fixedly installed on both sides of its top, and the mounting rod (3) has a second handle (17) fixedly installed on both sides.
5. A drilling core sampling tool according to claim 1, characterized in that: The slide plate (9) has a hole inside that mates with the guide rod (8).
6. A drilling core sampling tool according to claim 1, characterized in that: A plug cone (19) is installed on the internal thread at the bottom of the core rod (1).