Core drilling machine

Abstract

The utility model relates to the technical field of drilling core sampling, disclose a drilling core sampling machine, including two fixed plate, between detachably installed mounting panel, the top detachably installed of mounting panel is used for the sampling machine of drilling core sampling, limiting piece sets up the outside of mounting panel, and the connection between two fixed plate and mounting panel can be realized through limiting piece, and two fixed plate with the central axis of mounting panel as center synchronous movement through limiting piece. In the utility model, the connection between two fixed plate and mounting panel can be realized through limiting piece, and two fixed plate with the central axis of mounting plate as center synchronous movement through limiting piece, make two fixed plate can be tightly wrapped in the outside of cement pole also can be separated from the outer wall of cement pole, so as to change the installation and drilling core position of sampling machine, reduce the time and energy required when repeatedly drilling core sampling, improve the efficiency when repeatedly drilling core sampling of cement pole.

Description

Technical Field

[0001] This utility model relates to the field of core sampling technology, and in particular to a core sampling machine. Background Technology

[0002] A core sampling machine (also known as a core drill or core extractor) is a device used to extract cylindrical samples (core samples) from solid materials such as rocks, concrete, asphalt, and wood. Its main applications cover a wide range of fields.

[0003] Currently, in the construction of overhead power lines, most require the use of cement poles to support the suspended power lines. After the cement poles are produced, a portion of them need to be randomly selected, and cylindrical core samples are drilled from their outer surface using a core sampling machine. The cracks, voids, and carbonization depth in the core samples are then analyzed to determine the cement poles' resistance to weathering, freeze-thaw cycles, and corrosion. Based on this, the durability of the cement poles and whether they meet the usage standards are assessed.

[0004] In existing technologies, when using a core sampling machine to sample the outer surface of a cement utility pole, two clamps are first installed next to the sampling location to cover the outer surface of the pole. Then, the core sampling machine is connected to the clamps located directly above the pole (to secure the machine and prevent it from shifting or vibrating during drilling, thus ensuring proper sampling). Once connected, core sampling can begin. However, to avoid the limitations of single-location sampling and to more accurately assess the overall condition of the pole, multiple sampling locations are needed on the outer wall of the cement utility pole. However, existing clamps are connected using multiple bolts and nuts. During multi-location sampling, these bolts and nuts must be repeatedly rotated and decoupled, and reconnected via threaded engagement, to change the position of the clamps and limit their movement, thereby altering the installation position of the core sampling machine. This process is time-consuming and labor-intensive, reducing the efficiency of core sampling of cement utility poles. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a core sampling machine, which aims to improve the problems in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a core sampling machine, comprising:

[0007] It includes two fixed plates with a mounting plate detachably installed between them, and a sampling machine for core sampling is detachably installed on the top of the mounting plate.

[0008] The limiting component is located on the outside of the mounting plate. It enables the connection between the two fixed plates and the mounting plate, and allows the two fixed plates to move synchronously around the central axis of the mounting plate.

[0009] As a further description of the above technical solution:

[0010] Both fixing plates are bent, and a rubber pad to increase their friction is fixedly installed on one side of each fixing plate.

[0011] As a further description of the above technical solution:

[0012] The limiting component includes connecting blocks and limiting blocks. Connecting blocks are symmetrically fixedly installed on both sides of one end of the two fixed plates. Two sliding grooves are symmetrically opened on one side of the mounting plate. Two limiting blocks are slidably installed in the inner cavity of each of the two sliding grooves. One end of each of the four limiting blocks is provided with a receiving groove that matches the connecting blocks.

[0013] As a further description of the above technical solution:

[0014] The two sliding grooves on one side of the mounting plate are connected to the other side of the plate. The other end of each of the four limiting blocks is provided with a mounting hole that communicates with the inner cavity of the receiving groove. Limiting bolts can be detachably installed in the inner cavity of the mounting hole. One end of each of the four connecting blocks is provided with a threaded hole that matches the limiting bolt.

[0015] As a further description of the above technical solution:

[0016] A bearing plate is fixedly installed between two adjacent connecting blocks. A vertical block is fixedly installed on the top of each of the two bearing plates. A guide groove adapted to the vertical block is opened on one side of the mounting plate. A bidirectional threaded rod is rotatably installed in the inner cavity of the guide groove. A groove is opened at the end of each of the two vertical blocks away from the bearing plate. A threaded groove adapted to the bidirectional threaded rod is opened on the inner wall of the groove.

[0017] As a further description of the above technical solution:

[0018] Two fixing rods are symmetrically fixed on both sides of the mounting plate, and the fixing rods are all designed with an L-shaped structure.

[0019] This utility model has the following beneficial effects:

[0020] In this invention, the connection between the two fixing plates and the mounting plate can be realized through the limiting component, and the two fixing plates can move synchronously around the central axis of the mounting plate. This allows the two fixing plates to be tightly wrapped around the outside of the cement pole or to detach from the outer wall of the cement pole, so as to facilitate changing the installation and core drilling position of the sampling machine, reducing the time and effort required for repeated core drilling and sampling, and improving the efficiency of repeated core drilling and sampling of cement poles. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is an assembly drawing of the fixing plate and cement utility pole of this utility model;

[0023] Figure 3 This is an assembly drawing of the mounting plate and fixing plate of this utility model;

[0024] Figure 4 This is an assembly drawing of the mounting plate and the limiting block of this utility model.

[0025] Legend:

[0026] 1. Mounting plate; 2. Fixing plate; 3. Limiting block; 4. Fixing rod; 5. Limiting bolt; 6. Stand block; 7. Connecting block; 8. Bearing plate; 9. Receiving groove; 10. Sliding groove; 11. Two-way threaded rod. Detailed Implementation

[0027] 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.

[0028] Reference Figure 1-4 One embodiment of this utility model provides a core sampling machine, comprising:

[0029] Two fixing plates 2 are detachably connected to an mounting plate 1. A sampling machine for core drilling is detachably mounted on the top of the mounting plate 1. After connecting one end of the two fixing plates 2 to one side of the mounting plate 1, and ensuring that the sampling machine is directly above the cement pole, the two fixing plates 2 are used to clamp the outer wall of the cement pole. The mounting plate 1 is limited by the cooperation between the two fixing plates 2 and the cement pole. Once the mounting plate 1 is fixed directly above the cement pole, the sampling machine can be started to drill core samples from the top of the cement pole (this is existing technology and will not be described in detail here).

[0030] Both fixing plates 2 are bent, and rubber pads to increase their friction are fixedly installed on one side of each fixing plate 2. When one end of the two fixing plates 2 is connected to one side of the mounting plate 1 and clamps the outer wall of the cement pole, the rubber pads installed on one side of the two fixing plates 2 simultaneously contact the outer wall of the cement pole, so that the two rubber pads fit tightly against the outer wall of the cement pole and wrap around the outer wall of the cement pole. This increases the contact area and friction between the fixing plates 2 and the outer wall of the cement pole, preventing the sampling machine from shifting or shaking due to vibration or human intervention during operation, and improving the stability of the sampling machine when drilling core samples from the outer wall of the cement pole.

[0031] Two connecting blocks 7 are symmetrically fixed on both sides of one end of the two fixed plates 2. Two sliding grooves 10 are symmetrically opened on one side of the mounting plate 1. Two limiting blocks 3 are slidably installed in the inner cavity of each of the two sliding grooves 10. One end of each of the four limiting blocks 3 is provided with a receiving groove 9 that matches the connecting block 7. When one end of the fixed plate 2 is connected to one side of the mounting plate 1, the two connecting blocks 7 installed on one end of the fixed plate 2 are simultaneously located directly below the two sliding grooves 10 until the ends of the two connecting blocks 7 away from the fixed plate 2 are simultaneously inserted into the inner cavity of the two receiving grooves 9. The initial connection between the fixed plate 2 and the limiting blocks 3 can be achieved through the mutual cooperation of the connecting blocks 7 and the receiving grooves 9.

[0032] Both the sliding groove 10 and the limiting block 3 are designed as T-shaped structures, which not only allows the limiting block 3 to slide along the inner cavity of the sliding groove 10, but also prevents the limiting block 3 from falling out of the inner cavity of the sliding groove 10.

[0033] The two sliding grooves 10 on one side of the mounting plate 1 are connected to the other side of the plate. The other end of each of the four limiting blocks 3 is provided with a mounting hole that communicates with the inner cavity of the receiving groove 9. A limiting bolt 5 can be detachably installed in the inner cavity of the mounting hole. One end of each of the four connecting blocks 7 is provided with a threaded hole that matches the limiting bolt 5. When the end of the connecting block 7 away from the fixing plate 2 is inserted into the inner cavity of the receiving groove 9 and fits against the inner wall of the receiving groove 9 away from its own opening, the small end of the limiting bolt 5 is inserted into the inner cavity of the mounting hole until the small end of the limiting bolt 5 enters the inner cavity of the threaded hole. Then, the large end of the limiting bolt 5 is continuously rotated until the large end of the limiting bolt 5 fits tightly against the end of the limiting block 3 away from the receiving groove 9. This achieves the connection between the connecting block 7 and the limiting block 3, preventing the connecting block 7 from falling out of the inner cavity of the receiving groove 9 under the gravity of the fixing plate 2.

[0034] Since cement poles have different uses and different sizes, in order to ensure that the rubber pad on one side of the fixing plate 2 fits tightly against the outer wall of the cement pole, the fixing plate 2 needs to be replaced so that the curvature of the curved surface of the fixing plate 2 is the same as the curvature of the outer wall of the cement pole. When replacing the fixing plate 2, rotate the large end of the limiting bolt 5 in the opposite direction until the four limiting bolts 5 are completely disengaged from the inside of the four threaded holes. Then the fixing plate 2 can be separated from one side of the mounting plate 1. Then, install a fixing plate 2 of the same size as the cement pole. This allows the sampling machine to be fixed directly above the cement pole by replacing the fixing plate 2 with one of different sizes.

[0035] The height of the connecting block 7 is much greater than the inner cavity height of the receiving groove 9. When the end of the connecting block 7 away from the fixing plate 2 is inserted into the inner cavity of the receiving groove 9 and fits against the inner wall of the receiving groove 9 away from its own opening, there is a certain distance between the top of the fixing plate 2 and one side of the mounting plate 1. This prevents the top and outer wall of the fixing plate 2 from contacting the bottom of the mounting plate 1, allowing the fixing plate 2 to slide along the sliding groove 10 with the limiting block 3. This prevents the fixing plate 2 from getting stuck when it moves, and improves the smoothness and stability of the movement of the fixing plate 2.

[0036] A bearing plate 8 is fixedly installed between two adjacent connecting blocks 7. A vertical block 6 is fixedly installed on the top of each of the two bearing plates 8. A guide groove adapted to the vertical block 6 is opened on one side of the mounting plate 1. A bidirectional threaded rod 11 is rotatably installed in the inner cavity of the guide groove. A groove is opened at the end of each of the two vertical blocks 6 away from the bearing plate 8. The inner wall of the groove is opened with a threaded groove adapted to the bidirectional threaded rod 11. When the connecting block 7 is fixed in the inner cavity of the receiving groove 9 with the cooperation of the limiting bolt 5, the inner wall of the groove is completely and tightly fitted with the outer wall of the bidirectional threaded rod 11. When the bidirectional threaded rod 11 is continuously rotated to extend to the end outside the guide groove, the two vertical blocks 6 can move along the axis of the bidirectional threaded rod 11 with the cooperation of the threaded groove and the bidirectional threaded rod 11, so that the two vertical blocks 6 move synchronously towards the central axis of the mounting plate 1, so that the two fixing plates 2 can wrap around the outside of the cement pole, and the fixed plates 2 are limited after movement with the cooperation of the threads, so as to prevent the two fixing plates 2 from moving again when the bidirectional threaded rod 11 is stationary.

[0037] When it is necessary to change the sampling position of the cement pole, rotate the double-threaded rod 11 in the opposite direction to move the two upright blocks 6 simultaneously away from the central axis of the mounting plate 1 until the straight distance between the ends of the two fixing plates 2 away from the connecting block 7 is greater than the diameter of the cement pole. Then, pull the mounting plate 1 upward until the fixing plates 2 detach from the outside of the cement pole. Then, place the two fixing plates 2 next to the sampling position. Next, rotate the double-threaded rod 11 until the two rubber pads are tightly attached to the outer wall of the cement pole again, and then fix the sampling machine again.

[0038] Two fixing rods 4 are symmetrically fixed on both sides of the mounting plate 1. The fixing rods 4 are all set in an L-shaped structure. When the two fixing plates 2 are wrapped around the outside of the cement pole, the ends of the four fixing rods 4 away from the mounting plate 1 are all in contact with the ground. This prevents the cement pole from rotating along the ground when the sampling machine drills the core sample from the outer wall of the cement pole, and further improves the stability of the cement pole core sample.

[0039] The connecting block 7, the limiting block 3, the bidirectional threaded rod 11, and the upright block 6 constitute the limiting component. The limiting component enables the connection between the two fixing plates 2 and the mounting plate 1, and allows the two fixing plates 2 to move synchronously around the central axis of the mounting plate 1. This allows the two fixing plates 2 to be tightly wrapped around the outside of the cement pole or to detach from the outer wall of the cement pole, so as to facilitate changing the installation and core drilling position of the sampling machine, reduce the time and effort required for repeated core drilling and sampling, and improve the efficiency of repeated core drilling and sampling of cement poles.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A core sampling machine, characterized in that: It includes two fixed plates (2) with a mounting plate (1) detachably installed between them, and a sampling machine for core sampling is detachably installed on the top of the mounting plate (1). The limiting component is set outside the mounting plate (1). The two fixed plates (2) can be connected to the mounting plate (1) through the limiting component, and the two fixed plates (2) can move synchronously around the central axis of the mounting plate (1) through the limiting component.

2. The core sampling machine of claim 1, wherein: Both fixing plates (2) are bent, and one side of each fixing plate (2) is fixedly equipped with a rubber pad to improve its own friction.

3. The core sampling machine of claim 1, wherein: The limiting component includes a connecting block (7) and a limiting block (3). The connecting blocks (7) are symmetrically fixed on both sides of one end of the two fixing plates (2). Two sliding grooves (10) are symmetrically opened on one side of the mounting plate (1). Two limiting blocks (3) are slidably installed in the inner cavity of the two sliding grooves (10). One end of each of the four limiting blocks (3) is provided with a receiving groove (9) that matches the connecting block (7).

4. The core sampling machine of claim 3, wherein: The two sliding grooves (10) on one side of the mounting plate (1) are connected to each other on the other side. The other end of each of the four limiting blocks (3) is provided with a mounting hole that communicates with the inner cavity of the receiving groove (9). A limiting bolt (5) can be detachably installed in the inner cavity of the mounting hole. One end of each of the four connecting blocks (7) is provided with a threaded hole that matches the limiting bolt (5).

5. The core sampling machine according to claim 2, characterized in that: A bearing plate (8) is fixedly installed between two adjacent connecting blocks (7). A vertical block (6) is fixedly installed on the top of each of the two bearing plates (8). A guide groove adapted to the vertical block (6) is opened on one side of the mounting plate (1). A bidirectional threaded rod (11) is rotatably installed in the inner cavity of the guide groove. A groove is opened at the end of each of the two vertical blocks (6) away from the bearing plate (8). A threaded groove adapted to the bidirectional threaded rod (11) is opened on the inner wall of the groove.

6. The core sampling machine of claim 1, wherein: Two fixing rods (4) are symmetrically fixed on both sides of the mounting plate (1), and the fixing rods (4) are all set as L-shaped structures.

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