Cracked stratum core protection device
By designing a combined structure of storage plates, cover plates, and baffles, the problem of damage to core samples from fractured strata during transportation was solved, enabling stable storage and rapid retrieval of core samples and improving research efficiency.
Patent Information
- Application Number
- CN202520108129.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Cores from fractured strata are easily damaged during collection and transportation, and are not easy to retrieve and store, which affects the results of subsequent research.
A protective device comprising a storage plate, a cover plate, and a baffle is designed. The baffle seals the left end of the storage plate, the cover plate is connected to the storage plate by a hinge, the positioning post is fixed by a threaded hole, and the pushing assembly and the pushing plate structure facilitate the removal and protection of the core sample.
It effectively protects the integrity of core samples, prevents sample mixing, facilitates rapid extraction and transportation, and improves research and testing efficiency.
Smart Images

Figure CN223658865U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of core protection equipment, specifically a core protection device for fractured strata. Background Technology
[0002] In exploration work in fields such as petroleum and geology, the acquisition and protection of fractured strata cores are of paramount importance. As an important sample for geological research, the integrity and quality of the core directly affect the study of stratigraphic structure, rock properties, and mineral resources.
[0003] However, the special properties of fractured strata pose many challenges to the collection and protection of core samples. Without effective protection measures, the core samples may be further damaged due to collisions, friction, etc., during subsequent transportation and storage. At the same time, due to the fractured state of the core samples, it is inconvenient to remove them and use them. Therefore, further optimization is needed to address these issues. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a core protection device for fractured strata, which solves the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a core protection device for fractured strata, comprising a storage plate, a cover plate, and a baffle plate. The left end of the cover plate is rotatably connected to the right end of the storage plate via a hinge. The storage plate is grooved and has a partition plate inside for separating core samples. A slot is formed on the inner wall of the left end of the storage plate. The baffle plate is located inside the slot and abuts against the left end of the partition plate.
[0006] A pusher plate is slidably connected between the internal parts and the partitions of the storage plate. A pusher assembly is provided on the lower surface of the cover plate and is used in conjunction with the pusher plate to remove the core sample inside the storage plate. A positioning post is provided on the upper surface of the left end of the cover plate, and a threaded hole is provided on the upper surface of the left end of the storage plate and is used in conjunction with the positioning post.
[0007] This utility model has the following beneficial effects:
[0008] This is a core protection device for fractured strata. The partitions inside the storage plate can store fractured core samples. The left end of the storage plate is sealed by a baffle, and the cover plate is fastened to the top of the storage plate by a hinge. It is fixed by a positioning post extending into the threaded hole. This device can protect the core samples inside the storage plate and facilitate the storage of samples from different batches. When the baffle is pulled to the right to expose the left end of the storage plate, the pusher assembly and the pusher plate can move the pusher plate to the left to push out the fractured core samples between the partitions. This facilitates the quick removal of core samples and avoids the mixing of samples.
[0009] This is a core protection device for fractured strata. When the cover plate and the storage plate are in the locked state, the moving plate is located on the right side of the push plate. When the screw rotates, the moving plate moves on the surface of the screw, and synchronously drives the push plate to move, which facilitates the ejection of the core sample between the partitions into the interior of the storage plate for later research and testing. The rubber cylinder can extend and retract left and right with the moving plate to protect the screw and reduce damage to the screw during transportation.
[0010] This type of core protection device for fractured strata has a limiting rod on the right end of the baffle that can rotate into the interior of the limiting block and be fixed by the cooperation of the spring and the locking block, preventing the baffle from moving out of the slot during the movement of the storage plate. The fixing column at the bottom of the storage plate and the limiting cylinder on the upper surface of the cover plate can facilitate the stacking of multiple identical devices for later transportation. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is a schematic diagram of the disassembly structure of the baffle of this utility model;
[0013] Figure 3 This is a schematic diagram of the interlocking structure of the storage plate and cover plate of this utility model;
[0014] Figure 4 This is a cross-sectional view of the limiting block of this utility model;
[0015] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0016] The components are as follows: 1. Storage plate; 2. Cover plate; 3. Baffle; 4. Partition; 5. Slot; 6. Push plate; 7. Limiting block; 8. Limiting rod; 9. Positioning post; 10. Threaded hole; 11. Screw; 12. Moving plate; 13. Handle; 14. Limiting cylinder; 15. Fixing post; 16. Rubber cylinder; 17. Magnet block one; 18. Magnet block two; 19. Locking block; 20. Spring. Detailed Implementation
[0017] 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.
[0018] Please see Figures 1 to 5This utility model provides a core protection device for fractured strata; it includes a storage plate 1, a cover plate 2 and a baffle 3. The left end of the cover plate 2 is rotatably connected to the right end of the storage plate 1 via a hinge. The storage plate 1 is grooved and has a partition 4 inside for separating core samples. A slot 5 is opened on the inner wall of the left end of the storage plate 1. The baffle 3 is located inside the slot 5 and abuts against the left end of the partition 4.
[0019] like Figure 1 As shown, the baffle 3 is inserted into the slot 5, which can keep the left end of the storage plate 1 and the partition 4 in a closed state. When a crushed rock core sample is placed between the partitions, it can block the rock core sample from moving out of the left end of the storage plate 1, which is convenient for later transportation.
[0020] A pusher plate 6 is slidably connected between the inside of the storage plate 1 and the partition 4. The lower surface of the cover plate 2 is provided with a pusher assembly, which works in conjunction with the pusher plate 6 to remove the core sample inside the storage plate 1. The upper surface of the left end of the cover plate 2 is provided with a positioning post 9. The upper surface of the left end of the storage plate 1 is provided with a threaded hole 10, which works in conjunction with the positioning post 9.
[0021] like Figure 2 As shown, the side walls of the storage plate 1 and the partition plate 4 are provided with slide rails, and the top of the push plate 6 is fixedly connected with protrusions that are compatible with the slide rails. The purpose of this arrangement is to facilitate the left and right sliding of the push plate 6, avoid the problem of tilting, and maintain the stability of the sliding.
[0022] When the cover plate 2 is flipped over to the top of the storage plate 1 via the hinge, the positioning pin 9 (which has threads on its bottom surface) can be rotated to connect its bottom end with the threaded hole 10, which facilitates the fixing of the cover plate 2 and the storage plate 1 and prevents the cover plate 2 from opening during transportation. The surface of the inner partition of the cover plate 2 is provided with a rubber layer (shown in the figure, not labeled), which can abut against the upper surface of the inner partition 4 of the storage plate 1 to maintain the sealing between the partitions 4, prevent the transfer of core debris, and improve the accuracy of subsequent core sample testing.
[0023] A limiting block 7 is fixedly connected to one side of the left end of the storage plate 1. A rotatable limiting rod 8 is provided on the right end of the baffle 3 and is used in conjunction with the limiting block 7. A retractable locking block 19 is provided on one side of the limiting block 7. One end of the locking block 19 extends into the interior of the limiting block 7 and is fixedly connected to a spring 20. The other end of the spring 20 is fixedly connected to the inner wall of the limiting block 7.
[0024] like Figure 3 , Figure 4 and Figure 5As shown, the limiting block 7 is L-shaped, and the limiting rod 8 extends into the interior of the baffle 3 through the rotating shaft. When the baffle 3 is inserted into the interior of the slot 5, the limiting rod 8 rotates to the right and is locked inside the limiting block 7. Under the action of the spring 20, the locking block 19 presses against the limiting rod 8, reducing the shaking of the limiting rod 8 during equipment transportation.
[0025] The lower surface of the cover plate 2 has a groove corresponding to the partition plate 4. The pusher assembly includes a screw 11 rotatably connected inside the groove and a movable plate 12 threadedly connected to the surface of the screw 11. One end of the screw 11 is located on the inner side wall of one end of the cover plate 2, and the other end passes through the other end of the cover plate 2 and is fixedly connected to a handle 13.
[0026] like Figure 2 and Figure 3 As shown, multiple screws 11 are provided inside the cover plate 2 in the groove. Multiple handles 13 are also provided at the other end of the screws 11. When it is necessary to remove the core sample between the selected partitions 4, the handles 13 are turned to drive the screws 11 to rotate. At this time, the moving plate 12 moves on the surface of the screws 11, thereby driving the push plate 6 to push the core sample between the partitions 4 out of the storage plate 1 for convenient and rapid sampling.
[0027] A retractable rubber cylinder 16 is fixedly connected to the inner wall of one end of the cover plate 2 and is sleeved on the surface of the screw 11 to facilitate the protection of the screw 11. The other end of the rubber cylinder 16 is fixedly connected to one side of the movable plate 12. The movable plate 12 is provided with a magnet block 17 inside. The push plate 6 is provided with a magnet block 18 inside and works in conjunction with the magnet block 17. Limiting cylinders 14 are fixedly connected to the four corners of the upper surface of the cover plate 2. Fixed posts 15 that are compatible with the limiting cylinders 14 are fixedly connected to the lower surface of the storage plate 1.
[0028] When multiple identical devices are stacked, the fixing post 15 can be inserted into the limiting cylinder 14 to facilitate the stacking of multiple devices and facilitate subsequent transportation.
[0029] When the cover plate 2 is fastened to the storage plate 1, the movable plate 12 is inserted between the partition plates 4 and on the right side of the push plate 6. With the cooperation of the first magnet 17 and the second magnet 18 (like poles repel and unlike poles attract), the push plate 6 is easily attracted to one side of the movable plate 12. When the movable plate 12 retracts, it drives the push plate 6 to move synchronously, which facilitates the storage of core samples again.
[0030] In this invention, the working steps of the device are as follows:
[0031] When in use, insert the baffle 3 into the slot 5, hold the limiting rod 8 and rotate it to the right to the surface of the limiting block 7, store the core sample to be transported between the partitions 4, flip the cover plate 2 to the left to abut against the storage plate 1, and rotate the positioning column 9 so that its bottom end extends into the threaded hole 10 for fixing.
[0032] 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 core protection device for fractured strata, characterized in that: It includes a storage plate (1), a cover plate (2) and a baffle (3). The left end of the cover plate (2) is rotatably connected to the right end of the storage plate (1) by a hinge. The storage plate (1) is grooved and has a partition (4) for separating core samples inside. The inner wall of the left end of the storage plate (1) is provided with a slot (5). The baffle (3) is located inside the slot (5) and abuts against the left end of the partition (4). Inside the storage plate (1), a pusher plate (6) is slidably connected between the partition plate (4). The lower surface of the cover plate (2) is provided with a pusher assembly, which works in conjunction with the pusher plate (6) to remove the core sample inside the storage plate (1). The upper surface of the left end of the cover plate (2) is provided with a positioning post (9). The upper surface of the left end of the storage plate (1) is provided with a threaded hole (10), which works in conjunction with the positioning post (9).
2. The core protection device for fractured strata according to claim 1, characterized in that: A limiting block (7) is fixedly connected to one side of the left end of the storage plate (1), and a rotatable limiting rod (8) is provided on the right end of the baffle (3) and is used in conjunction with the limiting block (7); One side of the limiting block (7) is provided with a retractable locking block (19). One end of the locking block (19) extends into the interior of the limiting block (7) and is fixedly connected to a spring (20). The other end of the spring (20) is fixedly connected to the inner wall of the limiting block (7).
3. The core protection device for fractured strata according to claim 2, characterized in that: The lower surface of the cover plate (2) is provided with a groove corresponding to the partition plate (4). The pusher assembly includes a screw (11) rotatably connected inside the groove and a movable plate (12) threadedly connected to the surface of the screw (11). One end of the screw (11) is located on the inner side wall of one end of the cover plate (2), and the other end passes through the other end of the cover plate (2) and is fixedly connected to a handle (13).
4. The core protection device for fractured strata according to claim 3, characterized in that: A retractable rubber cylinder (16) is fixedly connected to the inner wall of one end of the cover plate (2) and is sleeved on the surface of the screw (11). The other end of the rubber cylinder (16) is fixedly connected to one side of the movable plate (12).
5. A core protection device for fractured strata according to claim 4, characterized in that: The movable plate (12) is provided with a magnet block 1 (17) inside, and the push plate (6) is provided with a magnet block 2 (18) inside, which is used in conjunction with the magnet block 1 (17).
6. The core protection device for fractured strata according to claim 1, characterized in that: Limiting cylinders (14) are fixedly connected at the four corners of the upper surface of the cover plate (2), and a fixing column (15) adapted to the limiting cylinder (14) is fixedly connected to the lower surface of the storage plate (1).