A punching device for road construction and a method of use

Abstract

The application discloses a kind of road construction puncher and use method, it is related to road construction technical field, including puncher main part, the puncher main part is slidably connected with lifting mechanism, the lifting mechanism is provided with drilling coring mechanism, the puncher main part bottom end outer wall is provided with splash-proof unit, the splash-proof unit outer wall is installed with positioning unit, the splash-proof unit is also provided with anti-falling unit, the splash-proof unit and lifting mechanism are provided with linkage unit, the splash-proof unit is provided with the fixing piece of fixed linkage unit;Adopt a kind of linkage type puncher, including positioning unit, anti-falling unit and linkage unit, can solve in different holes positioning, prevent core sample from falling and guarantee the problem of the alignment of drilling coring mechanism and hole.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and in particular to a drilling device and its method of use for road construction. Background Technology

[0002] A drilling device for road construction is a tool used in road construction to drill holes in concrete and then take core samples for analysis of the concrete's structural properties. Generally, during construction, it is necessary to take core samples from the concrete in the road to determine performance parameters such as concrete strength and density, so as to formulate a more reasonable construction plan and ensure the service life and quality of the road.

[0003] Concrete core sampling requires a road construction drilling device. This device drills holes in the concrete surface and then extracts the concrete core sample manually or mechanically. The sample is then sent to a testing unit for analysis. It uses electric or mechanical principles, employing a high-speed rotating drill bit to cut the concrete and extract the core sample, thus achieving rapid and accurate concrete core sampling. This device not only allows for quick collection of concrete core samples but also preserves the integrity of the concrete surface, without affecting the service life of the road.

[0004] However, existing drilling devices for road construction still have certain drawbacks in use. When using concrete drilling and coring devices for road construction, after drilling is completed, the drill bit must continue to rotate and rise a certain distance according to the operating specifications before stopping. At this time, due to the rotational force of the drill bit, problems such as core dropping or breaking may occur, thus affecting the coring effect. Specifically, the inertial force and resistance experienced by the drill bit during rotation will cause the core sample to generate inertial and reaction forces. If the drill bit rotates and rises too fast, the impact of the inertial force on the core sample will be stronger, which may easily lead to the core sample breaking or falling off. To address this, we propose a drilling device for road construction and its usage method. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a drilling device and method for road construction, which adopts a linkage-type drilling device including a positioning unit, an anti-drop unit and a linkage unit, and can solve the problems of positioning in different holes, preventing core samples from falling, and ensuring the alignment of the drilling and core sampling mechanism with the hole.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a drilling device and a method of use for road construction, comprising a drilling device body, a lifting mechanism slidably connected to the drilling device body, a core drilling mechanism provided on the lifting mechanism, an anti-splash unit provided on the outer wall of the bottom end of the drilling device body, a positioning unit installed on the outer wall of the anti-splash unit, an anti-falling unit also provided on the anti-splash unit, a linkage unit provided on the anti-splash unit and the lifting mechanism, and a fixing component for fixing the linkage unit provided on the anti-splash unit.

[0007] As a preferred embodiment of the present invention, the anti-splash unit includes a fixing plate fixed to the main body of the drilling device, a connecting rod connected to the fixing plate, and an anti-splash plate fixed to the connecting rod;

[0008] The connecting rod and the splash guard are slidably connected in the vertical direction.

[0009] As a preferred embodiment of the present invention, the positioning unit includes two sets of mounting plates connected to the rear end of the connecting rod, a first hinge member rotatably connected to the two sets of mounting plates, a long rod connected to the first hinge member and movably connected to the mounting plate through the first hinge member, and a positioning shaft fixed to the front end of the long rod.

[0010] As a preferred embodiment of the present invention, the positioning shaft is rotated at the central axis of the splash guard, and the splash guard and the core drilling mechanism are located at the same central axis.

[0011] As a preferred embodiment of the present invention, the anti-fall unit includes a movable cavity connected to the two side walls of the splash guard, a sliding groove opened on the two side walls of the movable cavity, a sliding rod movably connected to the sliding groove, two sets of anti-fall plates connected to the inner wall of the movable cavity and connected to the sliding rod at the other end, an anti-fall plate connected to the sliding rod, a rotating rod rotatably connected to the outer wall of the anti-fall plate through a bearing, a handle fixed to the end of the rotating rod passing through the outer wall of the movable cavity, slots opened on the two side walls of the splash guard, and a limiting member provided on the rotating rod for engaging with the inner wall of the movable cavity.

[0012] As a preferred embodiment of the present invention, the anti-fall plate includes a head and a handle. The head is configured as a semi-circular plate, and the handle is a long rectangular shape. The two sets of heads are combined to form a circular plate.

[0013] As a preferred technical solution of the present invention, the limiting member includes two sets of inner cavities opened on the inner side walls of the rotating rod, a spring connected in the inner cavity, a limiting block connected to the spring and slidably connected in the inner cavity, and a limiting groove opened on the inner wall of the upper and lower ends of the movable cavity.

[0014] One end of the spring is connected to the inner wall of the cavity, and the other end of the spring is connected to the outer wall of the bottom end of the limiting block.

[0015] As a preferred embodiment of the present invention, the linkage unit includes two sets of lifting rods connected to two sets of sliding members on the lifting mechanism, hinge slots opened on both sides of the fixed plate, a second hinge member disposed in the hinge slot, a baffle plate rotatably connected to the inner wall of the hinge slot through the second hinge member, and a slot opened on the end wall of the baffle plate.

[0016] As a preferred embodiment of the present invention, the limiting groove is configured as a trumpet-shaped opening, and the top of the limiting block is designed with an arc surface.

[0017] This invention also provides a method for using a drilling device for road construction and a method of using it:

[0018] S1: Based on actual needs, determine the size of the holes to be drilled in advance and draw them with lines. Lower the core drilling mechanism to the hole position through the lifting mechanism and connect the water pipe for cooling.

[0019] S2: Then rotate the positioning shaft into the splash guard via the long rod, and align the positioning shaft with the center of the marked hole to ensure the alignment of the core drilling mechanism with the hole and complete the positioning.

[0020] S3: When the core drilling mechanism needs to perform drilling work, first pull the two sets of handles outward, so that the handles drive the rotating rod to slide outward in the slide groove through the slide rod. During the sliding process, the anti-fall plate is moved outward, and the anti-fall plate moves into the movable cavity through the slot.

[0021] S4: Then move the two sets of baffles to a position perpendicular to the vertical direction of the fixed plate. At this time, rotate the positioning shaft to the rear end through the long rod, and then lower the core drilling mechanism into the core drilling mechanism through the lifting mechanism.

[0022] S5: When the core sample is removed after drilling, the staff observes that the bottom of the core drilling mechanism exceeds the horizontal position of the anti-fall plate. Then, they rotate the handles on both sides. The handles drive the limiting block to rotate in the limiting groove, releasing the limitation on the position of the anti-fall plate. At the same time, the elasticity of the mechanism itself generates a restoring force to push the slide rod to return to its original position, thereby causing the two sets of anti-fall plates to return to their original position and fit together to form a circular plate.

[0023] S6. Move the two sets of baffles by °. At this time, the two sets of anti-fall plates forming the circular plate are placed at the lower end of the drilling and core sampling mechanism. The drilling and core sampling mechanism rises and drives the lifting rod to move upward synchronously. The lifting rod engages with the slot and drives the baffle to move upward. In order to ensure that the lifting rod drives the baffle to rise without causing the baffle to rotate, a fixing part is set in the fixing plate to fix the position of the baffle.

[0024] S7. The baffle moves upward, causing the fixed plate, splash guard, and anti-fall plate inside the splash guard to move upward synchronously with the core drilling mechanism. At this time, the two sets of anti-fall plates forming the circular plate are always at the bottom of the core drilling mechanism. The core sample falling from the core drilling mechanism will also be blocked by the anti-fall plate, so that the core sample is always inside the core drilling mechanism.

[0025] This invention employs a linkage-type drilling device, including a positioning unit, an anti-drop unit, and a linkage unit. It can solve problems such as positioning in different holes, preventing core samples from falling out, and ensuring alignment between the drilling and core sampling mechanism and the hole. Compared with existing technologies, it has the following advantages:

[0026] 1. Improve work efficiency: The entire drilling process is linked together by the linkage unit, avoiding the need to repeatedly move the main body of the drilling device, thereby improving work efficiency.

[0027] 2. Improve drilling accuracy: By using a positioning unit to directly align the positioning shaft with the center of the hole, the drilling and core-taking mechanism can be precisely aligned with the hole, thereby improving drilling accuracy.

[0028] 3. To prevent the core sample from falling, the design of the anti-fall plate and limit block in the anti-fall unit can effectively prevent the core sample from falling, ensuring that the core sample is always inside the drilling and coring mechanism.

[0029] 4. Compatible with core drilling mechanisms of different sizes, the splash guard in this invention can be directly used to prevent splashing, thus ensuring that core drilling mechanisms of any size can be splash-proof. At the same time, the positioning shaft can be directly aligned with the center of the hole for positioning, which can also solve the problem that different sizes of holes require different sizes of core drilling mechanisms. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional state of the present invention;

[0032] Figure 3 This is a partial three-dimensional sectional view of the present invention;

[0033] Figure 4 This is a schematic diagram of a partial structure in an exploded state according to the present invention;

[0034] Figure 5 This is a three-dimensional sectional view of the movable cavity structure of the present invention;

[0035] Figure 6 This is a three-dimensional schematic diagram of the anti-fall unit of the present invention;

[0036] Figure 7 This is a schematic diagram of the three-dimensional cross-section of a portion of the structure of the present invention in an active state;

[0037] Figure 8 This is a three-dimensional schematic diagram of the connection between the baffle and the slot of the present invention;

[0038] Figure 9 This is a three-dimensional schematic diagram of the connection between the fixing plate and the baffle of the present invention.

[0039] The components include: 1. Drilling device body; 2. Lifting mechanism; 3. Drilling and core taking mechanism; 4. Anti-splash unit; 41. Fixing plate; 42. Connecting rod; 43. Splash guard; 5. Positioning unit; 51. Mounting plate; 52. First hinge; 53. Long rod; 54. Positioning shaft; 6. Anti-fall unit; 61. Movable cavity; 62. Slide groove; 63. Slide rod; 64. Anti-fall plate; 65. Rotating rod; 66. Handle; 67. Slot; 68. Inner cavity; 69. Spring; 610. Limiting block; 611. Limiting groove; 7. Linkage unit; 71. Lifting rod; 72. Hinge groove; 73. Second hinge; 74. Baffle; 75. Slot; 8. Fixing component. Detailed Implementation

[0040] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0041] Example:

[0042] Please see Figures 1-8 According to an embodiment of the present invention, a drilling device and its usage method for road construction include a drilling device body 1, a lifting mechanism 2 slidably connected to the drilling device body 1, a core drilling mechanism 3 fixed to the lifting mechanism 2, an anti-splash unit 4 fixed to the outer wall of the bottom end of the drilling device body 1, a positioning unit 5 hinged to the outer wall of the anti-splash unit 4, an anti-falling unit 6 connected to the anti-splash unit 4, and a linkage unit 7 disposed on the anti-splash unit 4 and the lifting mechanism 2, wherein the linkage unit 7 is used to drive the anti-splash unit 4 to move, and a fixing member 8 for fixing the linkage unit 7 is disposed on the anti-splash unit 4, thereby driving the anti-falling unit 6 on the anti-splash unit 4 to hold the core sample in the raised core drilling mechanism 3;

[0043] The anti-splash unit 4 is a structure commonly installed in existing devices. When the core drilling mechanism 3 rotates, it needs to be connected to a water pipe for cooling, which causes water to splash out as the core drilling mechanism 3 rotates. The anti-splash unit 4 is needed to block this. Specifically, it includes a fixing plate 41 fixed to the main body 1 of the drilling device, a connecting rod 42 connected to the fixing plate 41, and an anti-splash plate 43 fixed to the connecting rod 42. In this invention, the connecting rod 42 and the anti-splash plate 43 are configured to slide vertically in the vertical direction to cooperate with the linkage unit 7 to drive the anti-fall unit 6 to hold the core sample in the raised core drilling mechanism 3.

[0044] In short, using the above components, the main body 1 of the drilling device is placed at the location where drilling is required; the core drilling mechanism 3 is slidably connected to the main body 1 of the drilling device via the lifting mechanism 2, ensuring its stability; a water pipe is connected for cooling; an anti-splash unit 4 is installed, including a mounting plate 41, a connecting rod 42, and an anti-splash plate 43, ensuring that this component can effectively prevent water from splashing out; the linkage unit 7 is connected, ensuring that it can drive the anti-splash unit 4 to move; after confirming that the core drilling mechanism 3 and its auxiliary components are ready, drilling begins; after the core drilling mechanism 3 completes core drilling, the linkage unit 7 drives the anti-splash unit 4 and the anti-falling unit 6 to move upward synchronously with the core drilling mechanism 3, and the anti-falling unit 6 holds the core sample inside the raised core drilling mechanism 3.

[0045] The positioning unit 5 includes two sets of mounting plates 51 fixed to the rear end of the connecting rod 42, a first hinge 52 rotatably connected to the two sets of mounting plates 51, a long rod 53 rotatably connected to the first hinge 52 and mounted on the mounting plate 51, and a positioning shaft 54 ​​fixed to the front end of the long rod 53.

[0046] Workers will pre-draw the size of the holes to be drilled using lines. When workers need to position the holes, they only need to rotate the long rod 53, which will drive the positioning shaft 54 ​​to rotate into the splash guard 43. The position of the positioning shaft 54 ​​is set at the central axis of the splash guard 43. The splash guard 43 and the core drilling mechanism 3 are on the same central axis. That is to say, by simply moving the main body 1 of the drilling device to align the positioning shaft 54 ​​with the center of the drawn hole, the alignment of the core drilling mechanism 3 with the hole is ensured. Although the splash guard 43 can be used directly for positioning, different sizes of holes require different sizes of core drilling mechanisms 3. However, in this invention, the splash guard 43 directly uses the largest size, thus ensuring that it can prevent splashing for core drilling mechanisms 3 of any size. Therefore, the splash guard 43 cannot be used for positioning different holes, but the positioning shaft 54 ​​can solve this problem by directly aligning it with the center of the hole.

[0047] The anti-fall unit 6 includes a movable cavity 61 fixed on both sides of the splash guard 43, a sliding groove 62 opened on both sides of the movable cavity 61, a sliding rod 63 slidably connected to the sliding groove 62, two sets of 612 connected to the inner wall of the movable cavity 61 and connected to the sliding rod 63 at the other end, an anti-fall plate 64 fixed to the sliding rod 63, a rotating rod 65 rotatably connected to the outer wall of the anti-fall plate 64 through a bearing, a handle 66 fixed to the end of the rotating rod 65 passing through the outer wall of the movable cavity 61, a slot 67 opened on both sides of the splash guard 43, and a limiting member provided on the rotating rod 65 for engaging with the inner wall of the movable cavity 61. The anti-fall plate 64 includes a head and a handle. The head is set as a semi-circular plate and the handle is a long rectangular shape. The two sets of heads are combined to form a circular plate.

[0048] The limiting component includes two sets of inner cavities 68 opened on the inner side walls of the rotating rod 65, a spring 69 connected in the inner cavity 68, a limiting block 610 connected to the spring 69 and slidably connected in the inner cavity 68, and a limiting groove 611 opened on the inner wall of the upper and lower ends of the movable cavity 61. One end of the spring 69 is connected to the inner wall of the inner cavity 68, and the other end of the spring 69 is connected to the outer wall of the bottom end of the limiting block 610.

[0049] The aforementioned linkage unit 7 includes two sets of lifting rods 71 ​​fixed on two sets of sliding parts on the lifting mechanism 2, hinge grooves 72 opened on both sides of the fixed plate 41, a second hinge member 73 set in the hinge groove 72, a baffle 74 rotatably connected to the inner wall of the hinge groove 72 through the second hinge member 73, and a slot 75 opened on the end wall of the baffle 74.

[0050] When the core drilling mechanism 3 needs to perform drilling operations, the two sets of handles 66 are pulled outwards beforehand. This causes the handles 66 to drive the rotating rod 65 to slide outwards through the slide rod 63 in the slide groove 62. During this sliding process, the anti-fall plate 64 is moved outwards. The anti-fall plate 64 moves into the movable cavity 61 through the slot 67. At this time, the slide rod 63 compresses the two sets of 612, causing deformation. Then, by rotating the handles 66, the rotating rod 65 is driven to rotate on the anti-fall plate 64, causing the limiting block 610 to engage with the limiting groove 611 to limit the position of the anti-fall plate 64. At the same time, the two sets of baffles 74 are moved to a state perpendicular to the vertical direction of the fixed plate 41. Figure 8 As shown, the positioning shaft 54 ​​is rotated to the rear end via the long rod 53, as... Figure 4As shown in the figure, the core drilling mechanism 3 is then lowered into the core drilling mechanism 3 via the lifting mechanism 2. At this time, the lifting rod 71 will not come into contact with the baffle 74 as the lifting mechanism 2 moves. When the core drilling mechanism 3 finishes drilling and takes out the core sample, the staff observes that the bottom of the core drilling mechanism 3 exceeds the horizontal position of the anti-fall plate 64. Then, the staff rotates the handles 66 on both sides. The handles 66 drive the limiting block 610 to rotate in the limiting groove 611. During the rotation, the limiting block 610 gradually separates from the limiting groove 611 and moves downward to compress the spring 69 to produce deformation. In order to ensure that this process is unobstructed and smooth, the limiting groove 611 is set as a trumpet-shaped opening, and the top of the limiting block 610 is designed with an arc surface to release the limitation on the position of the anti-fall plate 64.

[0051] At this point, the restoring force generated by the elasticity of 612 pushes the slide bar 63 to return to its original position, thereby causing the two sets of anti-fall plates 64 to return to their original position and fit together to form a circular plate. The formed circular plate and the core drilling mechanism 3 are on the same central axis. At the same time, the two sets of baffles 74 also need to be moved 90 degrees, such as... Figure 7 As shown in the diagram, this operation requires two or more personnel to ensure the synchronization of moving the baffle 74 and rotating the handle 66. The core drilling mechanism 3 itself requires 2-3 people to operate during core drilling; therefore, this design will not increase personnel costs. After completing the above steps, the two sets of anti-fall plates 64 forming the circular plate are placed at the lower end of the core drilling mechanism 3. The core drilling mechanism 3 rises, causing the lifting rod 71 to move upward synchronously. The lifting rod 71 is L-shaped, allowing it to engage with the slot 75 and move the baffle 74 upward. To ensure that the lifting rod 71 does not cause the baffle 74 to rotate when it rises, a fixing element 8 is provided inside the fixing plate 41 to fix the position of the baffle 74. Figure 9 As shown, the fixing part 8 can be any existing limiting part, so it will not be described in detail here. The baffle 74 moves upward, causing the fixing plate 41, the splash plate 43 and the anti-fall plate 64 in the splash plate 43 to move upward synchronously with the core drilling mechanism 3. At this time, the two sets of anti-fall plates 64 forming the circular plate are always at the bottom of the core drilling mechanism 3. The core sample falling from the core drilling mechanism 3 will also be blocked by the anti-fall plate 64, so that the core sample is always in the core drilling mechanism 3.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling device for road construction, comprising a main body (1), a lifting mechanism (2) slidably connected to the main body (1), and a core drilling mechanism (3) provided on the lifting mechanism (2), characterized in that: The bottom outer wall of the main body (1) of the drilling device is provided with an anti-splash unit (4), the outer wall of the anti-splash unit (4) is provided with a positioning unit (5), the anti-splash unit (4) is also provided with an anti-fall unit (6), the anti-splash unit (4) and the lifting mechanism (2) are provided with a linkage unit (7), and the anti-splash unit (4) is provided with a fixing part (8) for fixing the linkage unit (7). The anti-splash unit (4) includes a fixing plate (41) fixed on the main body (1) of the drilling device, a connecting rod (42) connected to the fixing plate (41), and an anti-splash plate (43) fixed on the connecting rod (42). The linkage unit (7) includes two sets of lifting rods (71) connected to two sets of sliding parts on the lifting mechanism (2), hinge grooves (72) opened on both sides of the connecting rod (42), a second hinge (73) set in the hinge groove (72), a baffle (74) rotatably connected to the inner wall of the hinge groove (72) through the second hinge (73), and a slot (75) opened on the end wall of the baffle (74). The drilling and core sampling mechanism (3) rises upward, causing the lifting rod (71) to move upward synchronously. The lifting rod (71) engages with the slot (75), causing the baffle (74) to move upward.

2. The drilling device for road construction according to claim 1, characterized in that: The positioning unit (5) includes two sets of mounting plates (51) connected to the rear end of the connecting rod (42), a first hinge (52) rotatably connected to the two sets of mounting plates (51), a long rod (53) connected to the first hinge (52) and movably connected to the mounting plate (51) through the first hinge (52), and a positioning shaft (54) fixed to the front end of the long rod (53).

3. A drilling device for road construction according to claim 2, characterized in that: The positioning shaft (54) is rotated at the central axis of the splash guard (43), and the splash guard (43) and the core drilling mechanism (3) are located at the same central axis.

4. A drilling device for road construction according to claim 1, characterized in that: The anti-fall unit (6) includes a movable cavity (61) connected to the two side walls of the splash guard (43), a sliding groove (62) opened on the two side walls of the movable cavity (61), a sliding rod (63) movably connected to the sliding groove (62), two sets of second springs (612) connected to the inner wall of the movable cavity (61) and connected to the sliding rod (63) at the other end, an anti-fall plate (64) connected to the sliding rod (63), a rotating rod (65) rotatably connected to the outer wall of the anti-fall plate (64) through a bearing, a handle (66) fixed on the end of the rotating rod (65) passing through the outer wall of the movable cavity (61), a slot (67) opened on the two side walls of the splash guard (43), and a limiting member provided on the rotating rod (65) for engaging with the inner wall of the movable cavity (61).

5. A drilling device for road construction according to claim 4, characterized in that: The fall arrestor plate (64) includes a head and a handle. The head is set in a semi-circular shape, and the handle is in a long rectangular shape. The two sets of heads are combined to form a circular plate.

6. A drilling device for road construction according to claim 4, characterized in that: The limiting component includes two sets of inner cavities (68) opened on the inner side walls of the rotating rod (65), a first spring (69) connected in the inner cavity (68), a limiting block (610) connected to the first spring (69) and slidably connected in the inner cavity (68), and a limiting groove (611) opened on the inner wall of the upper and lower ends of the movable cavity (61). One end of the first spring (69) is connected to the inner wall of the inner cavity (68), and the other end of the first spring (69) is connected to the outer wall of the bottom end of the limiting block (610).

7. A drilling device for road construction according to claim 6, characterized in that: The limiting groove (611) is configured as a horn-shaped opening, and the top of the limiting block (610) is designed with an arc surface.

8. A method of using a drilling device for road construction according to any one of claims 1-7, characterized in that: S1: Based on actual needs, determine the size of the hole to be drilled in advance and draw it with a line. Lower the core drilling mechanism (3) to the hole position through the lifting mechanism (2) and connect the water pipe for cooling. S2: Then rotate the positioning shaft (54) into the splash guard (43) through the long rod (53) and align the positioning shaft (54) with the center of the marked hole to ensure that the drilling core taking mechanism (3) is aligned with the hole and the positioning is completed. S3: When the core drilling mechanism (3) needs to perform drilling work, first pull the two sets of handles (66) outward, so that the handles (66) drive the rotating rod (65) to slide outward in the slide groove (62) through the slide rod (63). During the sliding process, the anti-fall plate (64) is driven to move outward, and the anti-fall plate (64) moves into the movable cavity (61) through the slot (67). S4: Then move the two sets of baffles (74) to be perpendicular to the vertical direction of the fixed plate (41). At this time, rotate the positioning shaft (54) to the rear end through the long rod (53). Then the core drilling mechanism (3) is lowered and placed inside the core drilling mechanism (3) through the lifting mechanism (2). S5: When the core sample is taken out after drilling, the staff observes that the bottom of the core drilling mechanism (3) exceeds the horizontal position of the anti-fall plate (64). Then, the staff rotates the handles (66) on both sides. The handles (66) drive the limiting block (610) to rotate in the limiting groove (611), releasing the limitation on the position of the anti-fall plate (64). At the same time, the elasticity of the second spring (612) generates the restoring force to push the slide rod (63) to return to its original position, thereby driving the two sets of anti-fall plates (64) to return to their original position and fit together to form a circular plate. S6. Move the two sets of baffles (74) 90°. At this time, the two sets of anti-fall plates (64) forming the circular plate are placed at the lower end of the drilling and core sampling mechanism (3). The drilling and core sampling mechanism (3) rises and drives the lifting rod (71) to move upward synchronously. The lifting rod (71) engages with the slot (75) and drives the baffle (74) to move upward. In order to ensure that the lifting rod (71) drives the baffle (74) to rise without causing the baffle (74) to rotate, a fixing part (8) is provided in the connecting rod (42) to fix the position of the baffle (74). S7. The baffle (74) moves upward, causing the connecting rod (42), the splash guard (43), and the anti-falling plate (64) inside the splash guard (43) to move upward synchronously with the core drilling mechanism (3). At this time, the two sets of anti-falling plates (64) forming the circular plate are always at the bottom of the core drilling mechanism (3). The core sample falling from the core drilling mechanism (3) will also be blocked by the anti-falling plate (64), so that the core sample is always inside the core drilling mechanism (3).

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