A concrete sample coring device

Abstract

The utility model discloses a kind of concrete sample core coring devices, it is related to concrete detection technical field, the device includes base frame, four corners on the upper end of the base frame are vertically installed with support column, the upper end of the support column is horizontally installed with top plate, multiple-stage telescopic rod is vertically installed on the top plate, the output end of the multiple-stage telescopic rod is horizontally installed with mounting plate, the lower end of the mounting plate is installed with motor, the output end of the motor is detachably installed with drill cylinder, the drill cylinder and top plate are provided with ejection mechanism, the drill cylinder top is provided with clamping mechanism, the utility model is fixed by clamping plate to the concrete sample core inside drill cylinder, so that concrete sample core can move along with drill cylinder, ensure that concrete sample core is stably removed, the utility model removes concrete when drill cylinder lower end, push rod lower end can be inserted into the inside of perforation, then move upwards along with drill cylinder, push rod ejects the concrete sample core inside drill cylinder.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically a concrete core sampling device. Background Technology

[0002] A concrete core sample is a cylindrical specimen extracted from a hardened concrete structure (such as beams, slabs, columns, walls, pavements, dams, etc.) using a specialized core drilling machine. Extracting concrete core samples is one of the most direct and reliable methods for testing and evaluating the quality of structural concrete.

[0003] After the concrete core sample is drilled, it is placed inside the drill barrel. However, due to the lack of a clamping and fixing structure, the concrete core sample is prone to not moving upward with the drill barrel, but instead remaining in its original position, which affects the sampling efficiency of the concrete core sample.

[0004] To address the aforementioned problems, an improved concrete core sampling device is now designed. Utility Model Content

[0005] The purpose of this invention is to provide a concrete core sampling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A concrete core sampling device includes a base frame, with support columns vertically mounted at each of the four corners of the upper end of the base frame. A top plate is horizontally mounted on the upper end of each support column, and a multi-stage telescopic rod is vertically mounted on the top plate. The output ends of the multi-stage telescopic rods face the base frame, and an mounting plate is horizontally mounted on the output ends of the multi-stage telescopic rods. A motor is mounted on the lower end of the mounting plate, and a drill cylinder for sampling concrete cores is detachably mounted on the output end of the motor. A water spray ring for spraying water to the core location is mounted on the upper end of the base frame. The water spray ring is fitted onto the drill cylinder and is connected to a water supply device. An ejection mechanism for ejecting the concrete core sample inside the drill cylinder is provided on the drill cylinder and the top plate. A clamping mechanism for clamping and fixing the concrete core sample inside the drill cylinder after core drilling is performed is provided on the top of the drill cylinder.

[0008] As a further embodiment of this utility model: the ejection mechanism includes several push rods, and the upper end of the drill cylinder has several through holes arranged in a circular array. The push rods correspond one-to-one with the through holes. The push rods are vertically installed on the lower end of the top plate directly above the through holes. When the lower end of the drill cylinder is in close contact with the concrete surface, the lower end of the push rod moves out of the through hole.

[0009] As a further embodiment of this utility model: the clamping mechanism includes a fixing plate, and the upper end of the inner wall of the drill barrel is provided with a plurality of slots arranged in a circular array. A sliding groove is provided on the upper end of the slots on the drill barrel, and the sliding groove and the slots are interconnected. The fixing plate is vertically installed on the side wall of the drill barrel on the side of the sliding groove away from the center of the drill barrel. An internally threaded fixing cylinder is horizontally installed on the fixing plate. A threaded rod is rotatably connected to the inner wall of the internally threaded fixing cylinder by a thread. A hexagonal rotating block is installed at the end of the threaded rod away from the drill barrel to facilitate the operator to rotate the threaded rod. A clamping plate is rotatably connected to the end of the threaded rod away from the hexagonal rotating block. The lower end of the clamping plate passes through the sliding groove and is disposed inside the slot.

[0010] As a further improvement of this utility model, the inner wall of the push rod is equipped with reinforcing ribs to improve the structural strength of the push rod.

[0011] As a further improvement of this utility model, friction protrusions for increasing the friction of the hexagonal rotating block sidewall are installed on the sidewall of the hexagonal rotating block.

[0012] As a further improvement of this utility model, a rubber pad is installed on the side wall of the clamping plate to facilitate clamping the concrete sample core.

[0013] As a further improvement of this utility model, the lower end of the base frame is detachably equipped with a moving roller to facilitate the movement of the device.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] After core drilling is completed, this utility model uses a clamping plate to clamp and fix the concrete core inside the drill barrel, so that the concrete core can move with the drill barrel, preventing the concrete core from falling into the newly drilled hole and ensuring the stable removal of the concrete core.

[0016] This invention features a push rod and a perforation. When the drill barrel is in close contact with the concrete, the push rod just moves out of the perforation. This allows the lower end of the push rod to be inserted into the perforation as the lower end of the drill barrel moves out of the concrete. Then, as the drill barrel moves upward, the push rod pushes out the concrete core sample inside the drill barrel, effectively improving the efficiency of concrete core sample removal and making it easier for users to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the drill barrel in this utility model.

[0019] Figure 3 This is a schematic diagram of the clamping mechanism in this utility model.

[0020] Figure 4 This is a schematic diagram of the water spray ring in this utility model.

[0021] The components include: 1. Base frame; 2. Fixing plate; 3. Support column; 4. Motor; 5. Mounting plate; 6. Multi-stage telescopic rod; 7. Top plate; 8. Push rod; 9. Hexagonal rotating block; 10. Slide groove; 11. Through hole; 12. Drill barrel; 13. Water spray ring; 14. Slot; 15. Clamping plate; 16. Internal threaded fixing cylinder; 17. Threaded rod. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 In this embodiment of the present invention, a concrete core sampling device includes a base frame 1. Support columns 3 are vertically installed at the four corners of the upper end of the base frame 1. A top plate 7 is horizontally installed at the upper end of each support column 3. A multi-stage telescopic rod 6 is vertically installed on the top plate 7. The output end of the multi-stage telescopic rod 6 faces the base frame 1. An mounting plate 5 is horizontally installed at the output end of the multi-stage telescopic rod 6. A motor 4 is installed at the lower end of the mounting plate 5. A drill cylinder 12 for sampling concrete cores is detachably installed at the output end of the motor 4. A water spray ring 13 for spraying water to the core location is installed on the upper end of the base frame 1. The water spray ring 13 is fitted onto the drill cylinder 12 and is externally connected to a water supply device. An ejection mechanism for ejecting the concrete core sample inside the drill cylinder 12 is provided on the drill cylinder 12 and the top plate 7. A clamping mechanism for clamping and fixing the concrete core sample inside the drill cylinder 12 after core drilling is provided on the top of the drill cylinder 12.

[0024] The ejection mechanism includes several push rods 8. The upper end of the drill cylinder 12 has several through holes 11 arranged in a circular array. The push rods 8 correspond one-to-one with the through holes 11. The push rods 8 are vertically installed on the lower end of the top plate 7 directly above the through holes 11. When the lower end of the drill cylinder 12 is in close contact with the concrete surface, the lower end of the push rod 8 moves out of the through holes 11.

[0025] During core extraction, the operator rotates the drill barrel 12 to align the perforation 11 with the push rod 8. Then, the multi-stage telescopic rod 6 is activated to move the mounting plate 5, motor 4, and drill barrel 12 upwards, so that the lower end of the push rod 8 passes through the perforation 11 and presses against the concrete core sample inside the drill barrel 12. As the drill barrel 12 moves upwards, the push rod 8 pushes out the concrete core sample inside the drill barrel 12.

[0026] The clamping mechanism includes a fixing plate 2. The upper end of the inner wall of the drill barrel 12 is provided with a plurality of slots 14 arranged in a circular array. The upper end of the slots 14 is provided with a sliding groove 10 on the drill barrel 12. The sliding groove 10 and the slots 14 are interconnected. The fixing plate 2 is vertically installed on the side wall of the drill barrel 12 away from the center position of the sliding groove 10. An internally threaded fixing cylinder 16 is horizontally installed on the fixing plate 2. The inner wall of the internally threaded fixing cylinder 16 is connected to a threaded rod 17 by a threaded rotation. A hexagonal rotating block 9 is installed at the end of the threaded rod 17 away from the drill barrel 12 to facilitate the operator to rotate the threaded rod 17. A clamping plate 15 is rotatably connected at the end of the threaded rod 17 away from the hexagonal rotating block 9. The lower end of the clamping plate 15 passes through the sliding groove 10 and is set inside the slot 14.

[0027] After drilling the core in the drill barrel 12, the operator rotates the hexagonal rotating block 9, which drives the threaded rod 17 to rotate. Under the action of the thread, the threaded rod 17 drives the clamping plate 15 to move along the inner wall of the slide groove 10, so that the clamping plate 15 clamps and fixes the concrete core sample on the inner wall of the drill barrel 12.

[0028] Working principle of a concrete core sampling device:

[0029] When in use, the multi-stage telescopic rod 6 and the motor 4 are started. The output end of the motor 4 drives the drill barrel 12 to rotate. The output end of the multi-stage telescopic rod 6 drives the mounting plate 5, the motor 4, and the drill barrel 12 to move downward, so that the drill barrel 12 drills the core of the concrete.

[0030] After the core drilling is completed in the drill barrel 12, the concrete core sample is placed inside the drill barrel 12. Then, the operator rotates the hexagonal rotating block 9, which drives the threaded rod 17 to rotate. Under the action of the thread, the threaded rod 17 drives the clamping plate 15 to move along the inner wall of the slide groove 10, so that the clamping plate 15 clamps and fixes the concrete core sample on the inner wall of the drill barrel 12.

[0031] Then, the multi-stage telescopic rod 6 is retracted. The output end of the multi-stage telescopic rod 6 drives the mounting plate 5, motor 4 and drill barrel 12 to move upward. When the lower end of the drill barrel 12 just moves out of the ground, the multi-stage telescopic rod 6 is stopped. Then, the device is moved to another position. Then, the operator rotates the hexagonal rotating block 9 to release the clamping plate 15 from clamping the concrete core inside the drill barrel 12, and rotates the drill barrel 12 to align the perforation 11 with the push rod 8.

[0032] Then, the multi-stage telescopic rod 6 is retracted. The output end of the multi-stage telescopic rod 6 drives the mounting plate 5, motor 4, and drill barrel 12 to move upward, so that the lower end of the push rod 8 passes through the through hole 11 and presses against the concrete core inside the drill barrel 12. As the drill barrel 12 moves upward, the push rod 8 pushes out the concrete core inside the drill barrel 12.

[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.

Claims

1. A concrete core sampling device, comprising a base frame (1), wherein support columns (3) are vertically installed at the four corners of the upper end of the base frame (1), a top plate (7) is horizontally installed at the upper end of the support columns (3), a multi-stage telescopic rod (6) is vertically installed on the top plate (7), the output end of the multi-stage telescopic rod (6) faces the base frame (1), an mounting plate (5) is horizontally installed at the output end of the multi-stage telescopic rod (6), a motor (4) is installed at the lower end of the mounting plate (5), a drill cylinder (12) for sampling concrete cores is detachably installed at the output end of the motor (4), a water spray ring (13) for spraying water to the core location is installed at the upper end of the base frame (1), the water spray ring (13) is sleeved on the drill cylinder (12), and the water spray ring (13) is externally connected to a water supply device, characterized in that, The drill barrel (12) and the top plate (7) are provided with an ejection mechanism for ejecting the concrete core sample inside the drill barrel (12) from the drill barrel (12), and the top of the drill barrel (12) is provided with a clamping mechanism for clamping and fixing the concrete core sample inside the drill barrel (12) after drilling the core.

2. The concrete core sampling device according to claim 1, characterized in that, The ejection mechanism includes several push rods (8). The upper end of the drill cylinder (12) has several through holes (11) arranged in a circular array. The push rods (8) correspond one-to-one with the through holes (11). The push rods (8) are vertically installed on the lower end of the top plate (7) directly above the through holes (11). When the lower end of the drill cylinder (12) is in close contact with the concrete surface, the lower end of the push rod (8) moves out of the through hole (11).

3. The concrete core sampling device according to claim 1, characterized in that, The clamping mechanism includes a fixing plate (2). The upper end of the inner wall of the drill barrel (12) is provided with a plurality of slots (14) arranged in a circular array. A sliding groove (10) is provided on the drill barrel (12) at the upper end of the slots (14). The sliding groove (10) and the slots (14) are interconnected. The fixing plate (2) is vertically installed on the side wall of the drill barrel (12) on the side of the sliding groove (10) away from the center position of the drill barrel (12). The fixing plate (2) is horizontally threaded. The inner wall of the fixed cylinder (16) is connected to a threaded rod (17) by a threaded rotation. The end of the threaded rod (17) away from the drill cylinder (12) is equipped with a hexagonal rotating block (9) to facilitate the rotation of the threaded rod (17) by the operator. The end of the threaded rod (17) away from the hexagonal rotating block (9) is rotatably connected to a clamping plate (15). The lower end of the clamping plate (15) passes through the slide groove (10) and is set inside the slot (14).

4. A concrete core sampling device according to claim 2, characterized in that, The inner wall of the push rod (8) is equipped with reinforcing ribs to improve the structural strength of the push rod (8).

5. A concrete core sampling device according to claim 3, characterized in that, The hexagonal rotating block (9) has friction protrusions installed on its side wall to improve the friction of the side wall.

6. A concrete core sampling device according to claim 3, characterized in that, The side wall of the clamping plate (15) is equipped with a rubber pad to facilitate clamping the concrete core sample.

7. A concrete core sampling device according to claim 1, characterized in that, The lower end of the base frame (1) is detachably equipped with a movable roller to facilitate the movement of the device.

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