Drilling and coring device for municipal engineering

Abstract

The utility model discloses a drilling coring device for municipal engineering, which comprises a support frame, a screw rod is rotatably mounted at the top end of the support frame, a lifting platform is movably mounted on the outer surface of the screw rod, a screw rod motor is fixedly mounted at the top end of the screw rod, and a fixed bracket is fixedly mounted at the bottom end of the lifting platform. A servo motor is fixedly installed on the surface of the top end of the fixed bracket, the output end of the servo motor is connected with a rotating rod through a coupler, and a clamping ring is movably installed at the bottom end of the rotating rod. The clamping ring is detached from the bottom end of the rotating rod by rotating the clamping ring, then the adjusting table is lifted upwards, and the semi-drilling rod and the adjusting table can be separated in a rotating mode, so that a concrete core in the semi-drilling rod is taken out, the situation that the concrete core is difficult to take out is avoided, the concrete core is prevented from being directly buckled out, and the working efficiency is improved. Therefore, the internal part of the semi-drilling rod is damaged, and the detection result is not accurate.

Description

Technical Field

[0001] This utility model relates to the field of core drilling technology, specifically a core drilling device for municipal engineering. Background Technology

[0002] A road coring machine is a device for core sampling on road surfaces. After the machine moves to the required working position, the wheels leave the ground, and the base is stably placed in the working position. The drill bit on the machine is vertically aligned with the sampling location on the road surface. The electric motor drives the drill bit to rotate, and the operator adjusts the position of the drill bit vertically so that the drill bit rotates into the road surface to drill for core samples. In addition, to protect the drill bit, cooling water is often circulated to cool it down during drilling. It is one of the most widely used testing equipment in road engineering inspection, mainly used to detect parameters such as the thickness and strength of road surface structural layers.

[0003] Existing core drilling devices often result in the drilled concrete core becoming stuck inside the drill bit, making it difficult to remove and disassemble or replace. Therefore, they do not meet current requirements. To address this, we propose a core drilling device for municipal engineering projects. Utility Model Content

[0004] The purpose of this utility model is to provide a core drilling device for municipal engineering, in order to solve the problems mentioned in the background art, such as the concrete core drilled out getting stuck inside the drill bit and being difficult to remove, and the drill bit being difficult to disassemble and replace.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a core drilling device for municipal engineering, comprising a support frame, a lead screw rotatably mounted on the top of the support frame, a lifting platform movably mounted on the outer surface of the lead screw, a lead screw motor fixedly mounted on the top of the lead screw, a fixed bracket fixedly mounted on the bottom of the lifting platform, a servo motor fixedly mounted on the top surface of the fixed bracket, a rotating rod connected to the output end of the servo motor via a coupling, a retaining ring movably mounted on the bottom of the rotating rod, an adjusting platform movably mounted inside the bottom of the retaining ring, and two half-drill rods movably mounted on the bottom of the adjusting platform.

[0006] Preferably, the outer surface of the rotating rod is provided with two rotating rod outer grooves, the inner surface of the rotating rod outer groove is provided with a spring groove, an arc-shaped rod is slidably installed inside the spring groove, a bending spring is movably installed between the arc-shaped rod and the inside of the spring groove, a limiting plate groove is provided on the bottom surface inside the rotating rod outer groove, and limiting plates are fixedly installed on both sides of the inner surface of the snap ring. Both limiting plates are slidably snapped into the inside of the rotating rod outer groove through the limiting plate groove, and the surface of the arc-shaped rod is in contact with the surface of the limiting plate.

[0007] Preferably, two limiting buckles are fixedly installed on the outer surface of the adjustment platform, the inner surface of the locking ring is provided with a rotating ring groove, and the bottom surface of the rotating ring groove is provided with two limiting slots. The limiting buckles slide into the limiting slots through the rotating ring groove.

[0008] Preferably, the bottom surface of the adjustment platform is provided with two adjustment platform bottom grooves, and a fixed arc rod is fixedly installed inside each adjustment platform bottom groove. An arc rod bottom buckle is fixedly installed at the bottom end of each fixed arc rod. Two fixed arc blocks are fixedly installed on the top surface of each of the two semi-drilling rods. An arc-shaped groove is provided inside each fixed arc block. An arc block inner groove is provided on the bottom surface of the arc-shaped groove. The fixed arc rod is slidably inserted into the arc-shaped groove, and the arc rod bottom buckle is movably engaged into the arc block inner groove.

[0009] Preferably, two arc-shaped grippers are fixedly installed at the top of the adjustment platform, and the bottom of each of the semi-drilling rods is provided with drilling serrations.

[0010] Preferably, a handle is fixedly installed on the rear side of the top of the support frame, and the output end of the lead screw motor is connected to the top of the lead screw through a coupling.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the cooperation of the semi-drilling rod and the adjustment platform, allows the drilled concrete core to remain inside the semi-drilling rod when the core drilling is completed. At this time, the locking ring can be removed from the bottom of the rotating rod by rotating the locking ring. Then, the adjustment platform can be lifted upwards, and the semi-drilling rod and the adjustment platform can be separated by rotation, thereby removing the concrete core inside the semi-drilling rod. This avoids the situation where the concrete core is difficult to remove and avoids the situation where the concrete core is directly pried out, which may cause damage inside the semi-drilling rod and result in inaccurate test results.

[0013] 2. This utility model, through the cooperation of the adjustment platform and the semi-drilling rod, allows the device to install semi-drilling rods of different sizes at the bottom of the adjustment platform by removing the semi-drilling rod from the bottom of the adjustment platform during use. This facilitates the device to drill concrete cores of different sizes according to different road surfaces and different testing conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional side view of the entire utility model;

[0016] Figure 3 This utility model Figure 2A partial structural diagram of part A in the middle;

[0017] Figure 4 This is a top cross-sectional view of the position of the limiting plate of this utility model;

[0018] Figure 5 This is a half-sectional structural diagram of the rotating rod position of this utility model.

[0019] In the diagram: 1. Support frame; 2. Lead screw; 3. Lead screw motor; 4. Lifting platform; 5. Fixed bracket; 6. Handle; 7. Servo motor; 8. Rotating rod; 9. Snap ring; 10. Adjusting platform; 11. Semi-drilling rod; 12. Limiting plate; 13. Arc-shaped gripper; 14. Limiting buckle; 15. Fixed arc block; 16. Fixed arc rod; 17. Arc rod bottom buckle; 18. Arc groove; 19. Arc block inner groove; 20. Spring groove; 21. Bending spring; 22. Arc rod; 23. Limiting plate groove; 24. Rotating ring groove; 25. Limiting snap groove; 26. Adjusting platform bottom groove; 27. Rotating rod outer groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 5 The present invention provides an embodiment of a core drilling device for municipal engineering, comprising a support frame 1, a lead screw 2 rotatably mounted on the top of the support frame 1, a lifting platform 4 movably mounted on the outer surface of the lead screw 2, a lead screw motor 3 fixedly mounted on the top of the lead screw 2, a fixed bracket 5 fixedly mounted on the bottom of the lifting platform 4, a servo motor 7 fixedly mounted on the top surface of the fixed bracket 5, a rotating rod 8 connected to the output end of the servo motor 7 via a coupling, a retaining ring 9 movably mounted on the bottom of the rotating rod 8, an adjusting platform 10 movably mounted inside the bottom of the retaining ring 9, and two half-drill rods 11 movably mounted on the bottom of the adjusting platform 10. By cooperating with the semi-drilling rod 11 and the adjusting platform 10, when the drilling is completed, the drilled concrete core will remain inside the semi-drilling rod 11. At this time, the locking ring 9 can be rotated to remove it from the bottom of the rotating rod 8. Then, the adjusting platform 10 can be lifted upwards, and the semi-drilling rod 11 and the adjusting platform 10 can be separated by rotation, thereby removing the concrete core inside the semi-drilling rod 11. This avoids the situation where the concrete core is difficult to remove and avoids the situation where the concrete core is directly pried out, which may cause damage inside the semi-drilling rod 11 and result in inaccurate test results.

[0022] The outer surface of the rotating rod 8 is provided with two rotating rod outer grooves 27. The inner surface of the rotating rod outer groove 27 is provided with a spring groove 20. An arc-shaped rod 22 is slidably installed inside the spring groove 20. A bending spring 21 is movably installed between the arc-shaped rod 22 and the inside of the spring groove 20. The bottom surface of the inner surface of the rotating rod outer groove 27 is provided with a limiting plate groove 23. Limiting plates 12 are fixedly installed on both sides of the inner surface of the snap ring 9. Both limiting plates 12 are slidably inserted into the inner surface of the rotating rod outer groove 27 through the limiting plate groove 23. The surface of the arc-shaped rod 22 is in contact with the surface of the limiting plate 12. Through the cooperation of the adjusting table 10 and the semi-drilling rod 11, the device can be used to install semi-drilling rods 11 of different sizes at the bottom end of the adjusting table 10 by removing the semi-drilling rod 11 from the bottom end of the adjusting table 10. This allows the device to drill concrete cores of different sizes according to different road surfaces and different testing conditions.

[0023] Two limit buckles 14 are fixedly installed on the outer surface of the adjustment table 10. The inner surface of the locking ring 9 is provided with a rotating ring groove 24. The bottom surface of the rotating ring groove 24 is provided with two limit slots 25. The limit buckles 14 slide into the limit slots 25 through the rotating ring groove 24.

[0024] The bottom surface of the adjustment platform 10 is provided with two adjustment platform bottom grooves 26. A fixed arc rod 16 is fixedly installed inside the adjustment platform bottom groove 26. An arc rod bottom buckle 17 is fixedly installed at the bottom end of the fixed arc rod 16. Two fixed arc blocks 15 are fixedly installed on the top surface of the two half-drill rods 11. An arc groove 18 is provided inside the fixed arc block 15. An arc block inner groove 19 is provided on the bottom surface of the arc groove 18. The fixed arc rod 16 is slidably inserted into the arc groove 18, and the arc rod bottom buckle 17 is movably locked into the arc block inner groove 19.

[0025] Two arc-shaped grippers 13 are fixedly installed at the top of the adjustment platform 10, and the bottom of the semi-drilling rod 11 is provided with drilling serrations.

[0026] A handle 6 is fixedly installed on the rear side of the top of the support frame 1, and the output end of the lead screw motor 3 is connected to the top of the lead screw 2 through a coupling.

[0027] When using this core drilling device for municipal engineering, the screw motor 3 first drives the screw 2 to rotate, causing the lifting platform 4 to rise and fall on the surface of the screw 2. When the semi-drilling rod 11 contacts the road surface, the servo motor 7 drives the rotating rod 8 to rotate, which in turn causes the locking ring 9 and the adjusting platform 10 to rotate, thus causing the semi-drilling rod 11 to rotate on the road surface. At this time, the semi-drilling rod 11 will drill the core of the road surface. After the core drilling is completed, the concrete core will remain inside the semi-drilling rod 11. At this time, the limiting plate 12 can be moved to rotate inside the outer groove 27 of the rotating rod. When the limiting plate 12 rotates, it will push the arc rod 22 back into the spring groove 20 until the limiting plate 12 moves to the position of the limiting plate exiting the groove 23. At this time, the limiting plate 12 can be pulled down directly, and then the locking ring 9 can be pulled out from the bottom end of the rotating rod 8.

[0028] Then, grasp the two arc-shaped grippers 13 at the top of the adjusting platform 10 and pull the adjusting platform 10 upwards. This causes the limiting buckle 14 to move from inside the limiting slot 25 to inside the rotating ring groove 24. At the same time, the arc rod bottom buckle 17 moves upwards from inside the arc block inner groove 19 and engages inside the arc groove 18. At this point, rotate the adjusting platform 10, causing the fixed arc block 15 to rotate inside the adjusting platform bottom groove 26. After the fixed arc rod 16 and the arc rod bottom buckle 17 rotate out from inside the arc groove 18, pull the half-drilling rod 11 downwards, thus completing the separation of the half-drilling rod 11 from the adjusting platform 10. At this point, the concrete core inside the half-drilling rod 11 can be directly removed for testing, avoiding the situation where the concrete core is difficult to remove and avoiding the situation where directly prying out the concrete core could damage it inside the half-drilling rod 11, leading to inaccurate test results.

[0029] By removing the semi-drill rod 11 from the bottom of the adjustment platform 10, semi-drill rods 11 of different sizes can be installed at the bottom of the adjustment platform 10, thereby facilitating the drilling of concrete cores of different sizes to meet different road surfaces and different testing conditions.

[0030] 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 drilling device for municipal engineering, comprising a support frame (1), characterized in that: A lead screw (2) is rotatably mounted on the top of the support frame (1). A lifting platform (4) is movably mounted on the outer surface of the lead screw (2). A lead screw motor (3) is fixedly mounted on the top of the lead screw (2). A fixed bracket (5) is fixedly mounted on the bottom of the lifting platform (4). A servo motor (7) is fixedly mounted on the top surface of the fixed bracket (5). A rotating rod (8) is connected to the output end of the servo motor (7) through a coupling. A snap ring (9) is movably mounted on the bottom end of the rotating rod (8). An adjusting platform (10) is movably mounted inside the bottom end of the snap ring (9). Two half-drill rods (11) are movably mounted on the bottom end of the adjusting platform (10).

2. The core drilling device for municipal engineering according to claim 1, characterized in that: The outer surface of the rotating rod (8) is provided with two rotating rod outer grooves (27). The inner surface of the rotating rod outer groove (27) is provided with a spring groove (20). An arc rod (22) is slidably installed inside the spring groove (20). A bending spring (21) is movably installed between the arc rod (22) and the inside of the spring groove (20). The bottom surface of the rotating rod outer groove (27) is provided with a limiting plate groove (23). Both sides of the inner surface of the snap ring (9) are fixedly installed with limiting plates (12). Both limiting plates (12) are slidably inserted into the inside of the rotating rod outer groove (27) through the limiting plate groove (23). The surface of the arc rod (22) is in contact with the surface of the limiting plate (12).

3. The core drilling device for municipal engineering according to claim 1, characterized in that: Two limit buckles (14) are fixedly installed on the outer surface of the adjustment platform (10). The inner surface of the snap ring (9) is provided with a rotating ring groove (24). The bottom surface of the rotating ring groove (24) is provided with two limit slots (25). The limit buckle (14) slides into the limit slot (25) through the rotating ring groove (24).

4. A core drilling device for municipal engineering according to claim 1, characterized in that: The bottom surface of the adjustment platform (10) is provided with two adjustment platform bottom grooves (26). A fixed arc rod (16) is fixedly installed inside the adjustment platform bottom groove (26). An arc rod bottom buckle (17) is fixedly installed at the bottom end of the fixed arc rod (16). Two fixed arc blocks (15) are fixedly installed on the top surface of the two semi-drilling rods (11). An arc groove (18) is provided inside the fixed arc block (15). An arc block inner groove (19) is provided on the bottom surface inside the arc groove (18). The fixed arc rod (16) slides into the arc groove (18). The arc rod bottom buckle (17) is movably inserted into the arc block inner groove (19).

5. A core drilling device for municipal engineering according to claim 1, characterized in that: Two arc-shaped grippers (13) are fixedly installed at the top of the adjustment platform (10), and the bottom of the semi-drill rod (11) is provided with drilling serrations.

6. A core drilling device for municipal engineering according to claim 1, characterized in that: A handle (6) is fixedly installed on the rear side of the top of the support frame (1), and the output end of the lead screw motor (3) is connected to the top of the lead screw (2) through a coupling.

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