Core taker facilitating quick unloading
By using a pusher structure and a hydraulic cylinder limiting system, the problem of low sample feeding efficiency of the core extractor is solved, achieving rapid sample feeding and stability of the core extraction process. It also facilitates the replacement of the core drill bit, improving work efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YAAN HIGHWAY ENG TESTING CENT
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-29
AI Technical Summary
The existing core extractor is inefficient when feeding samples, which affects the work progress.
The material feeding structure includes a feeding block, a servo motor, and a threaded rod. The servo motor drives the threaded rod to rotate, which in turn lowers the feeding block, enabling rapid sample feeding. Combined with a hydraulic cylinder and a limiting structure, the stability of the core-taking process is improved. The guide rod and mounting structure facilitate the replacement of the core drill bit.
This enabled rapid sample feeding, improved work efficiency, and ensured the stability of the coring process and convenient replacement of the coring drill bit.
Smart Images
Figure CN224303334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway engineering testing technology, specifically to a core extractor that facilitates rapid material feeding. Background Technology
[0002] In highway engineering pavement construction technology, it is necessary to inspect the quality of the highway. The purpose of inspecting highway engineering is to ensure project quality, save costs, ensure safety, improve driving experience, and promote the improvement of management system. Core sampling is required when inspecting highway engineering.
[0003] Common core extractors used in highway engineering testing still have some problems. For example, when using the core extractor, the sample will enter the inside of the core tube, which makes it inconvenient to quickly remove the sample from the inside of the core tube and easily affects work efficiency.
[0004] Therefore, we propose a core extractor that facilitates rapid material feeding to address the aforementioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a core extractor that facilitates rapid sample unloading, thereby solving the problem mentioned in the background art that makes it inconvenient to quickly unload samples from inside the core extractor sleeve, which easily affects work efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a core extractor for quick material feeding, comprising a fixed plate, with support rods fixedly connected to the left and right sides and the front and rear ends of the bottom end of the fixed plate, a base fixedly connected to the bottom end of the support rods, a core extractor sleeve provided at the middle position of the bottom end of the fixed plate, and a material pushing structure for easy material feeding provided inside and on the right side of the core extractor sleeve.
[0007] The pushing structure includes a pushing block, a servo motor, and a threaded rod. A protective shell is fixedly connected to the top right side of the core tube sleeve. A servo motor is installed at the top of the protective shell. A threaded rod is fixedly connected to the output end of the servo motor. A threaded sleeve is provided at the top outside the threaded rod. A connecting plate is provided at the top inside the core tube sleeve. A connecting rod is fixedly connected to the bottom end of the connecting plate. The pushing block is fixedly connected to the bottom end of the connecting rod.
[0008] As a further technical solution of this utility model, a connecting block is fixedly connected between the connecting plate and the threaded sleeve, and the connecting block slides up and down on the right side of the top of the core tube sleeve and the left side of the protective shell.
[0009] As a further technical solution of this utility model, the pusher block is disposed inside the core-taking tube sleeve, and the threaded sleeve and the threaded sleeve cooperate with each other.
[0010] As a further technical solution of this utility model, a movable plate is provided at the top of the core-taking tube sleeve, a drive motor is installed at the top of the movable plate, a rotating shaft is fixedly connected to the output end of the drive motor, the rotating shaft is fixedly connected to the top of the core-taking tube sleeve, hydraulic cylinders are installed on the left and right sides inside the fixed plate, limit rods are fixedly connected to the front and rear ends of the top of the movable plate, limit grooves are opened at the front and rear ends inside the fixed plate, limit slots are fixedly connected to the left and right sides of the top of the core-taking tube sleeve, and a limit block is opened at the bottom of the inside of the movable plate.
[0011] As a further technical solution of this utility model, the limiting rod passes through the inside of the limiting slide groove and slides up and down inside the limiting slide groove, the hydraulic cylinder is installed on the left and right sides of the top of the movable plate, and the limiting groove rotates inside the limiting block.
[0012] As a further technical solution of this utility model, a core drill bit is provided at the bottom end of the core tube sleeve, and a protruding tooth is fixedly connected to the edge of the bottom end of the core drill bit. Guide grooves are provided on the left and right sides of the bottom end of the core tube sleeve, and guide rods are fixedly connected to the left and right sides of the top end of the core drill bit. Reserved grooves are provided at the front and rear ends of the outer wall of the core drill bit and at the front and rear ends of the bottom of the outer wall of the core tube sleeve. An installation plate is provided inside the reserved groove, and installation holes are provided inside the installation plate and the reserved groove. Movable installation bolts are provided inside the installation holes.
[0013] As a further technical solution of this utility model, the guide rod is set inside the guide groove, and the core drill bit is installed at the bottom end of the core tube sleeve through the mounting plate, mounting hole and mounting bolt.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the core extractor that facilitates rapid sample feeding not only makes it easier to push the sample to feed it quickly and improves the stability during operation, but also makes it easier to replace the core tube drill bit;
[0015] (1) By setting up a pusher block, connecting rod, servo motor, threaded sleeve and threaded rod, the servo motor is started when the material needs to be unloaded. The servo motor drives the threaded rod to rotate inside the protective shell. The threaded sleeve outside the threaded rod can drive the pusher block to descend through the connecting plate and connecting rod, so that the pusher block pushes the sample inside the core tube sleeve, thereby quickly pushing the sample out of the core tube sleeve and preventing the sample from getting stuck inside the core tube sleeve and affecting the sampling efficiency.
[0016] (2) By setting limit rods, limit slides, limit blocks and limit grooves, the hydraulic cylinder and drive motor are started when core is taken. The hydraulic cylinder drives the core tube sleeve and core drill bit to descend, and the drive motor drives the core tube sleeve and core drill bit to rotate through the rotating shaft. When the hydraulic cylinder is raised and lowered, the limit rod will slide up and down inside the limit slide, which can improve the stability of the raising and lowering. When the core tube sleeve rotates, the limit groove at the top of the core tube sleeve will rotate inside the limit block, which improves the stability of the core tube sleeve rotation.
[0017] (3) The guide rod, guide groove, mounting plate, mounting hole and mounting bolt are provided. The convex tooth is easily damaged after long-term use. When the convex tooth needs to be replaced, the mounting bolt is unscrewed from the inside of the mounting hole to make the core drill bit lose its fixation. When the core drill bit loses its fixation, the core drill bit can be disassembled and the convex tooth replaced. When the core drill bit needs to be installed, the guide rod at the top of the core drill bit is inserted into the inside of the guide groove. Then push the core drill bit to align the reserved groove. After alignment, put the mounting plate into the inside of the reserved groove. Then screw the mounting bolt into the inside of the mounting hole to limit and fix the mounting plate. In this way, the core drill bit can be installed and fixed to complete the replacement of the core drill bit. Attached Figure Description
[0018] Figure 1 This is a frontal cross-sectional view of the present invention.
[0019] Figure 2 This is an enlarged cross-sectional view of the protective shell of this utility model.
[0020] Figure 3 This is a front-view enlarged structural diagram of the core drill bit of this utility model;
[0021] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.
[0022] In the diagram: 1. Fixed plate; 2. Movable plate; 3. Limiting rod; 4. Limiting groove; 5. Drive motor; 6. Limiting block; 7. Limiting groove; 8. Rotating shaft; 9. Protective shell; 10. Core tube sleeve; 11. Core drill bit; 12. Base; 13. Support rod; 14. Pushing block; 15. Connecting rod; 16. Connecting plate; 17. Servo motor; 18. Threaded sleeve; 19. Threaded rod; 20. Guide rod; 21. Guide groove; 22. Mounting plate; 23. Mounting hole; 24. Reserved groove; 25. Mounting bolt; 26. Convex tooth; 27. Hydraulic cylinder. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-4 The present invention provides an embodiment of a core extractor for quick material feeding, comprising a fixed plate 1, with support rods 13 fixedly connected to the left and right sides and the front and rear ends of the bottom of the fixed plate 1, a base 12 fixedly connected to the bottom of the support rods 13, a core extractor sleeve 10 provided at the middle position of the bottom of the fixed plate 1, and a material pushing structure for easy material feeding provided inside and on the right side of the core extractor sleeve 10.
[0025] The pushing structure includes a pushing block 14, a servo motor 17, and a threaded rod 19. A protective shell 9 is fixedly connected to the top right side of the core tube sleeve 10. A servo motor 17 is installed at the top of the protective shell 9. A threaded rod 19 is fixedly connected to the output end of the servo motor 17. A threaded sleeve 18 is provided at the top outside the threaded rod 19. A connecting plate 16 is provided at the top inside the core tube sleeve 10. A connecting rod 15 is fixedly connected to the bottom end of the connecting plate 16. The pushing block 14 is fixedly connected to the bottom end of the connecting rod 15.
[0026] A connecting block is fixedly connected between the connecting plate 16 and the threaded sleeve 18. The connecting block slides up and down on the right side of the top of the core tube sleeve 10 and the left side of the protective shell 9. The pusher block 14 is set inside the core tube sleeve 10. The threaded sleeve 18 and the threaded sleeve 18 cooperate with each other.
[0027] Specifically, such as Figure 1 and Figure 2 As shown, when material needs to be fed, the servo motor 17 is started. The servo motor 17 drives the threaded rod 19 to rotate inside the protective shell 9. The threaded sleeve 18 outside the threaded rod 19 can drive the pusher block 14 to descend through the connecting plate 16 and the connecting rod 15, so that the pusher block 14 pushes the sample inside the core tube sleeve 10, thereby quickly pushing the sample out of the core tube sleeve 10 and preventing the sample from getting stuck inside the core tube sleeve 10 and affecting the sampling efficiency.
[0028] The top of the core tube sleeve 10 is provided with a movable plate 2, and a drive motor 5 is installed at the top of the movable plate 2. The output end of the drive motor 5 is fixedly connected to a rotating shaft 8, which is fixedly connected to the top of the core tube sleeve 10. Hydraulic cylinders 27 are installed on the left and right sides inside the fixed plate 1. Limiting rods 3 are fixedly connected to the front and rear ends of the top of the movable plate 2. Limiting grooves 4 are opened at the front and rear ends inside the fixed plate 1. Limiting slots 7 are fixedly connected to the left and right sides of the top of the core tube sleeve 10. Limiting block 6 is opened at the bottom of the movable plate 2. The limiting rods 3 pass through the inside of the limiting grooves 4 and slide up and down inside the limiting grooves 4. Hydraulic cylinders 27 are installed on the left and right sides of the top of the movable plate 2. The limiting grooves 7 rotate inside the limiting block 6.
[0029] Specifically, such as Figure 1 and Figure 4 As shown, during core extraction, hydraulic cylinder 27 and drive motor 5 are activated. Hydraulic cylinder 27 drives the core extraction sleeve 10 and core extraction drill bit 11 to descend, while drive motor 5 drives the core extraction sleeve 10 and core extraction drill bit 11 to rotate via rotating shaft 8. When hydraulic cylinder 27 is raised and lowered, limit rod 3 will slide up and down inside limit groove 4, thereby improving the stability of raising and lowering. When core extraction sleeve 10 rotates, limit groove 7 at the top of core extraction sleeve 10 will rotate inside limit block 6, improving the stability of core extraction sleeve 10 rotation.
[0030] The bottom end of the core tube sleeve 10 is provided with a core drill bit 11. A tooth 26 is fixedly connected to the edge of the bottom end of the core drill bit 11. Guide grooves 21 are opened on the left and right sides of the bottom end of the core tube sleeve 10. Guide rods 20 are fixedly connected to the left and right sides of the top end of the core drill bit 11. The front and rear ends of the outer wall of the core drill bit 11 and the front and rear ends of the bottom of the outer wall of the core tube sleeve 10 are respectively provided with reserved grooves 24. The reserved grooves 24 are provided with mounting plates 22. The mounting plates 22 and the reserved grooves 24 are respectively provided with mounting holes 23. The mounting holes 23 are provided with movable mounting bolts 25. The guide rods 20 are located inside the guide grooves 21. The core drill bit 11 is installed at the bottom end of the core tube sleeve 10 through the mounting plates 22, mounting holes 23 and mounting bolts 25.
[0031] Specifically, such as Figure 1 and Figure 3As shown, the tooth 26 is prone to damage after prolonged use. When the tooth 26 needs to be replaced, unscrew the mounting bolt 25 from the inside of the mounting hole 23 to loosen the core drill bit 11. Once the core drill bit 11 is loosened, the tooth 26 can be replaced. When the core drill bit 11 needs to be installed, insert the guide rod 20 at the top of the core drill bit 11 into the inside of the guide groove 21, and then push the core drill bit 11 to align the reserved groove 24. After alignment, place the mounting plate 22 into the inside of the reserved groove 24, and then screw the mounting bolt 25 into the inside of the mounting hole 23 to limit and fix the mounting plate 22. This completes the installation and fixation of the core drill bit 11 and the replacement of the core drill bit 11.
[0032] Working Principle: When using this invention, the device is placed in a suitable position, and the hydraulic cylinder 27 and drive motor 5 are activated. The hydraulic cylinder 27 lowers the core tube sleeve 10 and core drill bit 11, while the drive motor 5 rotates the core tube sleeve 10 and core drill bit 11 via the rotating shaft 8. This allows the core tube sleeve 10 to rotate and descend for sampling. During the lifting and lowering of the hydraulic cylinder 27, the limiting rod 3 slides up and down inside the limiting groove 4, improving the stability of the lifting and lowering. When the core tube sleeve 10 rotates, the limiting groove 7 at the top of the core tube sleeve 10 rotates inside the limiting block 6. After sampling is completed, the hydraulic cylinder 27 is activated again to raise the core tube sleeve 10. When unloading is required, the servo motor 17 is activated, driving the threaded rod 19 to rotate inside the protective shell 9. The threaded sleeve 18 outside the threaded rod 19 can then drive the pusher block 1 through the connecting plate 16 and connecting rod 15. 4. The pusher block 14 lowers, causing it to push the sample inside the core tube sleeve 10, thus quickly pushing the sample out of the core tube sleeve 10 and preventing the sample from getting stuck inside the core tube sleeve 10 and affecting the sampling efficiency. The tooth 26 is prone to damage after long-term use. When the tooth 26 needs to be replaced, unscrew the mounting bolt 25 from the inside of the mounting hole 23 to make the core drill bit 11 unsecured. Once the core drill bit 11 is unsecured, the tooth 26 can be replaced. When the core drill bit 11 needs to be installed, insert the guide rod 20 at the top of the core drill bit 11 into the inside of the guide groove 21, and then push the core drill bit 11 to align the reserved groove 24. After alignment, place the mounting plate 22 into the inside of the reserved groove 24, and then screw the mounting bolt 25 into the inside of the mounting hole 23 to limit and fix the mounting plate 22. This completes the installation and fixation of the core drill bit 11 and the replacement of the tooth 26.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A core extractor for easy and rapid feeding, comprising a fixing plate (1), characterized in that: Support rods (13) are fixedly connected to the left and right sides and the front and rear ends of the bottom of the fixed plate (1), and a base (12) is fixedly connected to the bottom of the support rods (13). A core tube sleeve (10) is provided at the middle position of the bottom of the fixed plate (1). A pusher structure for easy material feeding is provided inside and on the right side of the core tube sleeve (10). The pushing structure includes a pushing block (14), a servo motor (17), and a threaded rod (19). A protective shell (9) is fixedly connected to the top right side of the core tube sleeve (10). A servo motor (17) is installed at the top of the protective shell (9). A threaded rod (19) is fixedly connected to the output end of the servo motor (17). A threaded sleeve (18) is provided at the top outside the threaded rod (19). A connecting plate (16) is provided at the top inside the core tube sleeve (10). A connecting rod (15) is fixedly connected to the bottom end of the connecting plate (16). A pushing block (14) is fixedly connected to the bottom end of the connecting rod (15).
2. The core extractor for rapid feeding according to claim 1, characterized in that: A connecting block is fixedly connected between the connecting plate (16) and the threaded sleeve (18), and the connecting block slides up and down on the right side of the top of the core tube sleeve (10) and the left side of the protective shell (9).
3. The core extractor for rapid feeding according to claim 1, characterized in that: The pusher block (14) is located inside the core tube sleeve (10), and the threaded sleeve (18) and the threaded sleeve (18) cooperate with each other.
4. The core extractor for rapid feeding according to claim 1, characterized in that: The top end of the core tube sleeve (10) is provided with a movable plate (2), the top end of the movable plate (2) is equipped with a drive motor (5), the output end of the drive motor (5) is fixedly connected to a rotating shaft (8), the rotating shaft (8) is fixedly connected to the top end of the core tube sleeve (10), the left and right sides inside the fixed plate (1) are equipped with hydraulic cylinders (27), the front and rear ends of the top end of the movable plate (2) are respectively fixedly connected with limit rods (3), the front and rear ends of the inside of the fixed plate (1) are provided with limit grooves (4), the left and right sides of the top end of the core tube sleeve (10) are fixedly connected with limit grooves (7), and the bottom end of the inside of the movable plate (2) is provided with limit blocks (6).
5. The core extractor for rapid feeding according to claim 4, characterized in that: The limiting rod (3) passes through the inside of the limiting slide groove (4) and slides up and down inside the limiting slide groove (4). The hydraulic cylinder (27) is installed on the left and right sides of the top of the movable plate (2). The limiting groove (7) rotates inside the limiting block (6).
6. The core extractor for rapid feeding according to claim 1, characterized in that: The bottom end of the core tube sleeve (10) is provided with a core drill bit (11). The edge of the bottom end of the core drill bit (11) is fixedly connected with a tooth (26). The left and right sides of the bottom end of the core tube sleeve (10) are provided with guide grooves (21). The left and right sides of the top end of the core drill bit (11) are fixedly connected with guide rods (20). The front and rear ends of the outer wall of the core drill bit (11) and the front and rear ends of the bottom of the outer wall of the core tube sleeve (10) are respectively provided with reserved grooves (24). The interior of the reserved groove (24) is provided with a mounting plate (22). The interior of the mounting plate (22) and the reserved groove (24) are respectively provided with mounting holes (23). The interior of the mounting holes (23) is provided with movable mounting bolts (25).
7. The core extractor for rapid feeding according to claim 6, characterized in that: The guide rod (20) is set inside the guide groove (21), and the core drill bit (11) is installed at the bottom end of the core tube sleeve (10) through the mounting plate (22), mounting hole (23) and mounting bolt (25).