Self-standing rock core storage device for geological exploration
By combining rigid tube arrays with flexible corrugated casing and elastic shock-absorbing pads, the problem of core breakage during drilling and transfer was solved, enabling self-standing storage and marking of cores and improving the protection effect of the storage device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-13
AI Technical Summary
Core samples are susceptible to vibration and impact during drilling and transfer, leading to radial fractures. Existing storage devices cannot effectively protect the integrity of the core samples.
It adopts an array-type combined structure composed of multiple rigid tubes, with flexible corrugated sleeves and elastic shock-absorbing pads inside the rigid tubes. Combined with the self-supporting design, it reduces the axial and radial impact force of the rock core and prevents breakage.
It effectively protects the integrity of the core during drilling and transfer, reduces the risk of fracture, and provides convenient self-standing storage and marking functions.
Smart Images

Figure CN223990382U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of geological exploration equipment technology, and more specifically to a device for core sampling and storage. Background Technology
[0002] Traditional core storage typically uses a box structure to securely arrange the cores and prevent damage during transportation. However, core damage primarily occurs during the core extraction process. Cores are prone to radial fracture due to vibration and impact when extracted from the drill pipe. Improper placement during the secondary transfer of cores to the storage box can also easily lead to radial fracture. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a self-standing rock core storage device for geological exploration, which can reduce the impact on the rock core during the core drilling stage and allows for the standing reception of the rock core, thus avoiding secondary transfer of the rock core on site.
[0004] The technical solution adopted in this utility model is: a self-standing rock core storage device for geological exploration, comprising:
[0005] An array-type combined structure consisting of at least three rigid tubes, with the axes of each rigid tube parallel to each other and fixed by a connecting frame;
[0006] The inner wall of the rigid tube is coaxially provided with a flexible corrugated sleeve.
[0007] An elastic shock-absorbing pad is installed at the bottom of the rigid pipe;
[0008] The rigid tube is equipped with a removable cap at the top;
[0009] The bottom surface of the array-type combined structure forms a polygonal support surface, enabling the device to stand upright.
[0010] To further optimize this technical solution, the elastic shock-absorbing pad has a through hole, and the axis of the through hole is perpendicular to the axis of the rigid pipe.
[0011] To further optimize this technical solution, the outer surface of the cap is provided with a writing marking area formed by frosting.
[0012] To further optimize this technical solution, the array-type combination structure is arranged in a triangular, rectangular, or grid pattern.
[0013] To further optimize this technical solution, the elastic shock-absorbing pad is fixedly connected to the inner wall of the rigid pipe, and the bottom surface of the elastic shock-absorbing pad protrudes 10-20mm from the bottom end face of the rigid pipe.
[0014] To further optimize this technical solution, the upper opening of the rigid tube is provided with an outwardly widening chamfered portion.
[0015] In the technical solution described in this utility model, multiple hard tube arrays are arranged at an upright angle to receive the rock core pushed out from the drill pipe in the vertical direction. The rock core enters the hard tube from top to bottom in the drill pipe. The elastic shock-absorbing pad at the bottom of the hard tube can reduce the axial impact force of the rock core, and the flexible corrugated sleeve on the inner wall of the hard tube can reduce the radial impact force of the rock core and prevent the rock core from breaking.
[0016] Other technical effects of this utility model will be gradually explained in the unfolding of the embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 for Figure 1 A cross-sectional view of a single rigid tube combined with an elastic damping pad, a cap, and a flexible corrugated sleeve;
[0019] In the diagram, 1 is a rigid pipe; 2 is a flexible corrugated pipe; 3 is an elastic shock-absorbing pad; 4 is a cap; 5 is a through hole; 6 is a writing / marking area; 7 is a chamfered part; and 8 is a connecting frame. Detailed Implementation
[0020] like Figure 1 , Figure 2 As shown:
[0021] A self-standing core storage device for geological exploration, comprising:
[0022] An array-type combination structure in the form of a regular hexagon, consisting of seven rigid tubes 1, with the axes of each rigid tube 1 parallel to each other and fixed by a connecting frame 8;
[0023] The inner wall of the rigid tube 1 is coaxially provided with a flexible corrugated sleeve 2;
[0024] An elastic shock-absorbing pad 3 is installed at the bottom of the rigid tube 1;
[0025] The top of the rigid tube 1 is equipped with a removable cap 4;
[0026] The bottom surface of the array-type combined structure forms a polygonal support surface, enabling the device to stand upright.
[0027] like Figure 2 As shown, the elastic shock-absorbing pad 3 is snapped into place at the bottom of the rigid pipe 1 to prevent it from coming off. The elastic shock-absorbing pad 3 is made of rubber or TPU material, which reduces the impact of the rock core on the one hand, and also creates shock absorption between the rigid pipe 1 and the ground on the other hand, which can reduce noise and prevent damage to the bottom of the rigid pipe 1.
[0028] In a further optimization of this embodiment, the elastic damping pad 3 has a through hole 5, the axis of which is perpendicular to the axis of the rigid tube 1. The function of the through hole 5 is to allow a probe to be inserted through the bottom through hole 5 to push out the rock core when it is removed.
[0029] To further optimize this embodiment, the outer surface of the cap 4 is provided with a writing marking area 6 formed by a frosted finish. Cores at different depths can be marked in the corresponding writing marking area 6.
[0030] To further optimize this embodiment, the array-type combination structure is arranged in a triangular, rectangular, or grid pattern.
[0031] In a further optimization of this embodiment, the elastic damping pad 3 is fixedly connected to the inner wall of the rigid pipe, and the bottom surface of the elastic damping pad 3 protrudes 10-20mm from the bottom end face of the rigid pipe.
[0032] In a further optimization of this embodiment, the upper opening of the rigid tube 1 is provided with an outwardly widening chamfered portion 7. The function of the chamfered portion 7 is to provide sufficient guidance for the rock core, allowing it to fall smoothly into the rigid tube 1.
[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
Claims
1. A self-standing core storage device for geological exploration, characterized by, Comprise: Arrayed combination structure composed of at least three hard pipes (1), the axis of each hard pipe (1) is parallel to each other and is fixed by a connecting frame (8); The inner wall of the hard pipe (1) is coaxially provided with a flexible corrugated sleeve (2); The bottom of the hard pipe (1) is provided with an elastic shock pad (3); The top end of the hard pipe (1) is provided with a detachable cap (4); The bottom surface of the arrayed combination structure forms a polygonal support surface, so that the device can be placed independently.
2. The self-standing core storage device for geological exploration of claim 1, wherein, The elastic shock pad (3) is provided with a through hole (5), and the axis of the through hole (5) is perpendicular to the axis of the hard pipe (1).
3. The self-standing core storage device for geological exploration of claim 1, wherein, The outer surface of the cap (4) is provided with a writing mark area (6) formed by sanding treatment.
4. The self-standing core storage device for geological exploration of claim 1, wherein, The arrayed combination structure is arranged in a triangular, rectangular or square shape.
5. The self-standing core storage device for geological exploration of claim 1, wherein, The elastic shock pad (3) is fixedly connected with the inner wall of the hard pipe, and the bottom surface of the elastic shock pad (3) protrudes from the bottom end surface of the hard pipe by 10-20mm.
6. The self-standing core storage device for geological exploration of claim 1, wherein, The upper end opening of the hard pipe (1) is provided with an outwardly enlarged chamfer (7).