Coring device for drilling machine

Abstract

The invention provides a coring device for a drilling machine, and relates to the technical field of drilling machine coring, the coring device comprises a middle transmission frame, and the middle of the front end of the middle transmission frame is rotatably provided with a rotary sliding cylinder matched with a bearing; a core drilling motor is fixedly arranged at the top of the middle transmission frame, and the shaft end of the core drilling motor is in transmission connection with a gear arranged on the rotary sliding barrel. An assembling rotating cylinder is arranged in the middle of the rotating sliding cylinder in a sliding mode, an arc-shaped groove is formed in the outer portion of the assembling rotating cylinder in a surrounding mode, and a sliding strip structure matched with the arc-shaped groove is arranged in the rotating sliding cylinder; the device has stable and convenient hoisting and sampling functions, the assembled rotary drum can be spliced, combined and tunneled downwards to form a circular channel which is opened downwards, an inner pipe wraps a soil core, a lifting hook is used for pulling a lifting ring to ascend, the inner pipe is driven to directly ascend, counter-acting force is provided by rotating a reverse hook, and the inner pipe is in contact with a core column in the assembled rotary drum along with ascending of the inner pipe; sampling can be realized by pulling up a core column formed by soil, and the problem that an existing device is inconvenient to stably lift and sample is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of core drilling for rigs, and particularly relates to a core sampling device for a rig. Background Art

[0002] Core drilling for rigs is a technology for drilling holes in media such as rock and soil, concrete, etc. with a rig and extracting cylindrical core samples. By drilling a circular pipe into the ground with a rig, the soil in the middle of the pipe is intercepted, and the core is directly taken out from the middle of the pipe, thus enabling continuous core sampling underground and facilitating exploration.

[0003] The currently used core sampling devices are inconvenient for stably hoisting and sampling the soil deep underground, and giving a prompt after the core is filled, and at the same time avoiding the automatic sliding of the pipe into the ground when drilling into a hollow position, lacking a stable feed control structure and driving function. Summary of the Invention

[0004] In view of this, in view of the above deficiencies in the prior art, the present invention provides a core sampling device for a rig.

[0005] The present invention provides a core sampling device for a rig, which specifically includes: an intermediate transmission frame, a rotary sliding cylinder is rotatably arranged at the middle of the front end of the intermediate transmission frame in cooperation with a bearing; a core drilling motor is fixedly arranged at the top of the intermediate transmission frame, and the shaft end of the core drilling motor is in gear transmission connection with the rotary sliding cylinder; a connecting rotary cylinder is slidably arranged in the middle of the rotary sliding cylinder.

[0006] An arc-shaped groove is circumferentially formed on the outside of the connecting rotary cylinder, and a slide bar structure that fits with the arc-shaped groove is arranged in the rotary sliding cylinder; an external thread structure is arranged at the top of the connecting rotary cylinder, and an internal thread structure is arranged at the bottom of the connecting rotary cylinder. Two groups of connecting rotary cylinders can be combined and spliced through the internal and external thread structures; the bottom of the lowermost connecting rotary cylinder is provided with a ground drilling ring head through threaded connection, and the bottom of the ground drilling ring head is a circumferential tooth-shaped structure; a conical annular flange extends downward and inward in the ground drilling ring head; an inner pipe is closely arranged in the connecting rotary cylinder, a bottom pipe is fixedly arranged at the bottom of the inner pipe, and the bottom of the bottom pipe is an inner conical structure and fits with the lower part inside the ground drilling ring head; a trigger is installed above the inner pipe.

[0007] Optionally, a brake electric cylinder is fixedly arranged at the bottom of the intermediate transmission frame, and the telescopic end of the brake electric cylinder faces forward; a brake frame is fixedly arranged at the bottom of the intermediate transmission frame, two groups of brake clamping blocks are rotatably arranged in the brake frame, the brake clamping blocks are arc-shaped structures, and the two groups of brake clamping blocks can be buckled on the outside of the connecting rotary cylinder; swing rods are integrally arranged outside the hinge joints of the brake clamping blocks, and two groups of connecting rods are hinged between the swing rods on both sides and the telescopic end of the brake electric cylinder.

[0008] Optionally, traveling frames are fixedly arranged on both sides of the intermediate transmission frame. Vertical support frames are fixedly arranged on the tops of the traveling frames. An upper control device is fixedly arranged in the middle of the tops of the two vertical support frames. A power cylinder is fixedly arranged on the front side of the bottom of the upper control device. A pressing frame is fixedly arranged at the telescopic end of the power cylinder. A wire threading hole is formed in the middle of the rear side of the pressing frame. A prompt ring is fixedly arranged at the bottom of the upper control device.

[0009] Optionally, a wire take-up wheel is rotatably arranged at the bottom of the upper control device. A take-up motor for driving the wire take-up wheel is fixedly arranged at the bottom of the upper control device. A turning pulley is rotatably arranged at the bottom of the wire take-up wheel. A suspension wire is arranged outside the wire take-up wheel and is fixedly provided with a hook through the turning pulley. The lower part of the hook is of a wedge-shaped structure. The hook can pass through the wire threading hole.

[0010] Optionally, a suspension ring is fixedly arranged in the middle of the top of the inner pipe. The hook can pass through the suspension ring.

[0011] Optionally, six anti-hook grooves are circumferentially formed on the side of the bottom pipe. Rotary anti-hooks are hingedly arranged in the anti-hook grooves. Limiting structures are arranged at the outer positions near the tops of the anti-hook grooves.

[0012] Optionally, the trigger includes: a fixing plate fixedly arranged above the interior of the inner pipe, two suspension rods fixedly arranged at the bottom of the fixing plate; a movable plate slidably arranged above the interior of the inner pipe, a U-shaped frame fixedly arranged at the top of the movable plate, the suspension rods all pass through the U-shaped frame and are fixedly provided with retaining pieces; row control holes, row control holes are formed on one side of both the fixing plate and the movable plate, and the upper and lower row control holes are aligned; a projection lamp, a projection lamp is fixedly arranged at the top of the fixing plate, and a proximity switch is fixedly arranged at the bottom of the projection lamp; a storage battery for power supply is arranged at the bottom of the fixing plate; the projection lamp is vertically aligned with the prompt ring.

[0013] Optionally, an anti-loosening buckle ring is threadedly connected to the top of the group-connecting rotating cylinder. A handwheel structure is integrally arranged above the outside of the anti-loosening buckle ring. An annular pad is rotatably arranged at the top of the anti-loosening buckle ring. The pressing frame can contact the annular pad when the power cylinder extends.

[0014] The beneficial effects are as follows:

[0015] The present invention has a stable and convenient hoisting and sampling function. The group-connecting rotating cylinder can be spliced and combined and bored downward to form a circular channel for downward development, and the inner pipe wraps the soil core. Then, the hook is used to pull the suspension ring upward to drive the inner pipe to rise directly. The rotary anti-hook provides a reaction force, and the core column made of soil is pulled up when the inner pipe rises and contacts the core column inside the group-connecting rotating cylinder, so as to achieve sampling. Sampling is convenient and fast, and unlocking is also convenient.

[0016] The present invention is provided with an anti-disengagement ring, which can prevent the assembled rotating cylinder from falling off. During the process of drilling into the ground, if the assembled rotating cylinder reaches the position of underground air, the assembled rotating cylinder will fall downward. The anti-disengagement ring can provide protection to prevent it from falling. During the period of adding the assembled rotating cylinder, when disassembling the anti-disengagement ring, two groups of brake clamp blocks are brought closer and attached to the outside of the assembled rotating cylinder to fix the assembled rotating cylinder, and the position of the assembled rotating cylinder can be maintained.

[0017] The present invention is provided with a movable plate, which can detect the soil core. When the movable plate touches the top of the core column, it stops descending, and the fixed plate continues to descend. When the movable plate touches the proximity switch, the projection lamp is activated to project red light to the prompt ring. At this time, it indicates that the soil core is solidified, and the drilling can be manually stopped, or the proximity switch can be directly connected to the control program to automatically stop the drilling. Thus, it can also detect whether the underground is in a hollow state. Brief Description of the Drawings

[0018] Figure 1 Shows the three-dimensional structural schematic diagram of the embodiment in the present invention;

[0019] Figure 2 Shows the side elevation structural schematic diagram of the embodiment in the present invention;

[0020] Figure 3 Shows the three-dimensional sectional structural schematic diagram of the embodiment in the present invention;

[0021] Figure 4 Shows the sectional disassembled structural schematic diagram of the intermediate transmission frame in the embodiment in the present invention;

[0022] Figure 5 Shows the embodiment in the present invention Figure 4 of the side elevation structural schematic diagram;

[0023] Figure 6 Shows the three-dimensional sectional structural schematic diagram of the inner tube in the embodiment in the present invention;

[0024] Figure 7 Shows the assembly structural schematic diagram of the trigger in the embodiment in the present invention;

[0025] Figure 8 Shows the assembly structural schematic diagram of the earth-drilling ring head in the embodiment in the present invention;

[0026] Figure 9 Shows the embodiment in the present invention Figure 1 of the partial enlarged structural schematic diagram at position A;

[0027] Figure 10 Shows the embodiment in the present invention Figure 2 of the partial enlarged structural schematic diagram at position B.

[0028] List of Reference Numerals:

[0029] 1. Intermediate drive frame; 101. Core drilling motor; 102. Rotary sliding cylinder; 103. Brake cylinder; 104. Brake frame; 105. Brake clamping block; 106. Swing rod; 107. Connecting rod; 2. Traveling frame; 3. Vertical support frame; 4. Upper control device; 401. Electric cylinder; 402. Pressing frame; 403. Thread through hole; 404. Wire take-up wheel; 405. Take-up motor; 406. Turning pulley; 407. Hook; 408. Prompt ring; 5. Assembled rotating cylinder; 501. Arc-shaped groove; 6. Ground drilling ring head; 7. Inner pipe; 701. Suspension ring; 8. Bottom pipe; 801. Reverse hook groove; 802. Rotary reverse hook; 9. Trigger; 901. Fixed plate; 902. Suspension rod; 903. Movable plate; 904. U-shaped frame; 905. Drain control hole; 906. Projection lamp; 907. Proximity switch; 10. Anti-disengagement ring; 1001. Annular gasket. Specific embodiments

[0030] In order to make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the specific embodiments of the present invention.

[0031] Embodiment 1: Please refer to the accompanying drawings in the specification, Figures 1 to 10 as shown:

[0032] The present invention provides a core-taking device for a drilling rig, including: an intermediate drive frame 1, with a rotary sliding cylinder 102 rotatably arranged at the middle of the front end of the intermediate drive frame 1 in cooperation with a bearing; a core drilling motor 101 is fixedly arranged at the top of the intermediate drive frame 1, and the shaft end of the core drilling motor 101 is connected to the rotary sliding cylinder 102 through a gear drive; the core drilling motor 101 can be replaced with a more powerful or currently more suitable driving device according to needs; an assembled rotating cylinder 5 is slidably arranged in the middle of the rotary sliding cylinder 102, an arc-shaped groove 501 is circumferentially formed on the outside of the assembled rotating cylinder 5, and a slide bar structure matching the arc-shaped groove 501 is arranged in the rotary sliding cylinder 102; an external thread structure is arranged at the top of the assembled rotating cylinder 5, and an internal thread structure is arranged at the bottom of the assembled rotating cylinder 5, and two assembled rotating cylinders 5 can be combined and spliced through the internal and external thread structures; the bottom of the lowermost assembled rotating cylinder 5 is connected with a ground drilling ring head 6 through a thread, and the bottom of the ground drilling ring head 6 is a circumferential tooth-shaped structure; a conical annular flange extends downward and in the middle inside the ground drilling ring head 6; an inner pipe 7 is closely arranged inside the assembled rotating cylinder 5, a bottom pipe 8 is fixedly arranged at the bottom of the inner pipe 7, and the bottom of the bottom pipe 8 is an inner conical structure and fits with the lower part inside the ground drilling ring head 6; a trigger 9 is installed above the inner pipe 7.

[0033] Among them, a brake cylinder 103 is fixedly arranged at the bottom of the intermediate transmission frame 1, and the telescopic end of the brake cylinder 103 faces forward; a brake frame 104 is fixedly arranged at the bottom of the intermediate transmission frame 1, and two groups of brake clamping blocks 105 are rotatably arranged in the brake frame 104. The brake clamping blocks 105 are of an arc-shaped structure, and the two groups of brake clamping blocks 105 can be buckled on the outside of the assembled rotating cylinder 5; swing rods 106 are integrally arranged outside the hinge joints of the brake clamping blocks 105, and two groups of connecting rods 107 are hingedly arranged between the swing rods 106 on both sides and the telescopic end of the brake cylinder 103.

[0034] Among them, traveling frames 2 are fixedly arranged on both sides of the intermediate transmission frame 1, vertical support frames 3 are fixedly arranged on the tops of the traveling frames 2, and an upper control device 4 is fixedly arranged in the middle of the tops of the two vertical support frames 3; an electric cylinder 401 is fixedly arranged on the front side of the bottom of the upper control device 4, a pressing frame 402 is fixedly arranged at the telescopic end of the electric cylinder 401, and a wire passing hole 403 is formed in the rear side of the pressing frame 402; a prompting ring 408 is fixedly arranged at the bottom of the upper control device 4.

[0035] Among them, a wire reel 404 is rotatably arranged at the bottom of the upper control device 4, and a winding motor 405 for driving the wire reel 404 is fixedly arranged at the bottom of the upper control device 4; a turning pulley 406 is rotatably arranged at the bottom of the wire reel 404; a suspension wire is arranged outside the wire reel 404 and is fixedly provided with a hook 407 after passing through the turning pulley 406. The lower part of the hook 407 is of a wedge-shaped structure; the hook 407 can pass through the wire passing hole 403.

[0036] Among them, a hanging ring 701 is fixedly arranged in the middle of the top of the inner pipe 7, and the hook 407 can pass through the hanging ring 701.

[0037] Among them, six groups of anti-hooking grooves 801 are circumferentially formed on the side of the bottom pipe 8, and rotating anti-hooks 802 are hingedly arranged in the anti-hooking grooves 801; the outer positions at the tops of the anti-hooking grooves 801 are all set as limiting structures.

[0038] Among them, the trigger 9 includes: a fixing plate 901, which is fixedly arranged above the inside of the inner pipe 7, and two groups of suspension rods 902 are fixedly arranged at the bottom of the fixing plate 901; a movable plate 903, which slides above the inside of the inner pipe 7, and a U-shaped frame 904 is fixedly arranged at the top of the movable plate 903. The suspension rods 902 all pass through the U-shaped frame 904 and are fixedly provided with retaining pieces; row control holes 905, row control holes 905 are formed on one side of the fixing plate 901 and the movable plate 903, and the upper and lower row control holes 905 are aligned; a projection lamp 906, which is fixedly arranged at the top of the fixing plate 901, and a proximity switch 907 is fixedly arranged at the bottom of the projection lamp 906; a storage battery for power supply is arranged at the bottom of the fixing plate 901; the projection lamp 906 is vertically aligned with the prompting ring 408.

[0039] Among them, an anti-dropping buckle ring 10 is provided on the top of the assembled rotating drum 5 through a threaded connection, and a handwheel structure is integrally provided on the upper outer part of the anti-dropping buckle ring 10; an annular pad 1001 is rotatably provided on the top of the anti-dropping buckle ring 10, and the pressure frame 402 can contact the annular pad 1001 when the electric cylinder 401 is extended.

[0040] like Figures 1 - 10 As shown, coring is performed according to the following process;

[0041] Initial assembly and drilling start-up, component installation process is:

[0042] The assembly rotating drum 5 is passed through the interior of the rotating slide 102 to complete the positioning.

[0043] Install the ground drilling ring head 6 and make its lower end touch the ground to form an initial drilling fulcrum.

[0044] An anti-dropping buckle ring 10 is installed on the top of the assembly rotating drum 5 to complete the assembly of the axial limiting structure.

[0045] An inner tube 7 is placed inside the assembled drum 5 to ensure that its axis is coaxial with the drum.

[0046] The power system starts and performs the following operations simultaneously:

[0047] The core drilling motor 101 is started to drive the rotary slide 102 to rotate through the transmission mechanism, thereby driving the assembled rotary drum 5 and the ground drilling ring head 6 to form a rotary planing and drilling motion.

[0048] The electric cylinder 401 is started, and its piston rod pushes the pressing frame 402 to move vertically downward. When the pressing frame 402 contacts the annular pad 1001, the axial pressure is transmitted to the drilling ring head 6 through the anti-dropping buckle ring 10, thereby realizing drilling power loading.

[0049] When the anti-drop ring 10 moves to the lower limit of the stroke:

[0050] The core drilling motor 101 is turned off to terminate the rotary cutting operation.

[0051] The electric cylinder 401 is reset and retracted, releasing the axial pressure.

[0052] The brake electric cylinder 103 is started, and through the mechanical linkage of the connecting rod 107 and the rocker arm 106, the two groups of brake clamps 105 are tightened synchronously, and the outer periphery of the rotating drum 5 is rigidly fixed.

[0053] When coring:

[0054] The winding motor 405 is started to drive the take-up wheel 404 to release the wire, so that the hook 407 is lowered to contact the lifting ring 701; the hook 407 is deflected by the lateral force and passes through the lifting ring 701 and stays directly below it.

[0055] Reverse-start the take-up motor 405 to wind the wire, and the hook 407 vertically lifts the inner pipe 7 through the lifting ring 701; during this process, the rotating reverse hook 802 provides a reverse supporting force and synchronously takes out the core column composed of soil in the inner pipe 7.

[0056] Remove the bottom pipe 8, and the complete core column can be pushed out of the inner pipe 7.

[0057] When performing the operation of lengthening the rotary drum, after completing a single-section drilling:

[0058] Remove the top anti-unthreading ring 10, and connect a new rotary drum of the same specification to the top of the assembled rotary drum 5.

[0059] Reinstall the anti-unthreading ring 10 on the top of the newly added rotary drum to restore the axial limiting structure.

[0060] Repeat the process of "power start → drilling → fixing → core sampling" to extend the drilling depth.

[0061] The inner pipe 7 synchronously descends with the rotary drum by inertia and gravity, and the annular channel formed by cutting the drilling head 6 provides a descending space for it.

[0062] Solidification detection: When the movable plate 903 touches the top surface of the core column, it stops moving downward, and the fixed plate 901 continues to descend until it triggers the proximity switch 907. At this time, the projection lamp 906 projects red light onto the prompt ring 408 to prompt the operator to manually stop drilling or trigger the program to automatically stop the machine.

[0063] If a underground cavity is encountered during drilling, the mechanical limiting function of the anti-unthreading ring 10 can prevent the assembled rotary drum 5 from falling, ensuring the safety of the equipment and the feasibility of subsequent core sampling operations.

[0064] After completing the survey of the target depth, perform the disassembly operation in the reverse order of installation, and finally take out the drilling head 6 and the inner pipe group 7 components to complete the equipment recovery.

[0065] Embodiment 2: On the basis of Embodiment 1, as Figure 4 shown, a flange connection structure is provided at the top of the intermediate transmission frame 1, which can be directly installed on the boom or robotic arm of the drilling rig, and the drilling rig equipment is used to control and move.

[0066] Embodiment 3: On the basis of Embodiment 1, as Figure 1 shown, it is selected to use the traveling frame 2 to move. Two sets of universal wheels are provided at the bottom of the traveling frame 2 to provide a conveying effect. During use, weights need to be added to the top of the traveling frame 2 or the top of the intermediate transmission frame 1, or weights are added at any other position of the device that does not affect the work to ensure the core sampling effect.

[0067] Specific usage method and function of this embodiment: In the present invention, during use, according to the usage requirements, the traveling frame 2 moving device can be selected, or the intermediate transmission frame 1 can be directly connected to the boom of a large drilling rig for use;

[0068] Pass a set of connecting and rotating cylinders 5 through the rotating sliding cylinder 102, and then install the ground drilling head 6. After the ground drilling head 6 contacts the ground, install the anti-disengagement ring 10 above the connecting and rotating cylinder 5, and install the inner pipe 7 inside the connecting and rotating cylinder 5; Start the core drilling motor 101 to drive the rotating sliding cylinder 102 to rotate, so that the connecting and rotating cylinder 5 and the ground drilling head 6 rotate. Start the electric cylinder 401 to move the pressing frame 402 downward. After the pressing frame 402 contacts the annular gasket 1001, push the anti-disengagement ring 10 downward to make the ground drilling head 6 drill into the ground;

[0069] When the anti-disengagement ring 10 moves to the lowest position, turn off the core drilling motor 101 to stop drilling, reset the electric cylinder 401, and then start the brake electric cylinder 103 to cooperate with the connecting rod 107 and the swing rod 106 to bring the two brake clamping blocks 105 closer together and fit them outside the connecting and rotating cylinder 5 to fix the connecting and rotating cylinder 5;

[0070] Start the winding motor 405 to drive the wire reel 404 to rotate and pay out the wire, lower the hook 407. When the hook 407 descends and touches the lifting ring 701, it deflects to one side, passes through the lifting ring 701 and moves to its lower side, and then reverses the winding motor 405 to lift the hook 407. The hook 407 will pull the lifting ring 701 upward to drive the inner pipe 7 to rise directly; During this period, the rotating anti-hook 802 will provide a reaction force. As the inner pipe 7 rises, it contacts the core column inside the connecting and rotating cylinder 5 to pull up the core column composed of soil;

[0071] After removing the inner pipe 7, the bottom pipe 8 can be disassembled to pull out the core column;

[0072] Then remove the anti-disengagement ring 10, add a connecting and rotating cylinder 5 above the connecting and rotating cylinder 5, and then install the anti-disengagement ring 10 on the top of the upper connecting and rotating cylinder 5. Repeat the above steps to repeat the tunneling;

[0073] During the downward drilling process of the lowermost connecting and rotating cylinder 5, the inner pipe 7 will also descend due to inertia and gravity. The annular channel generated by the rotation of the ground drilling head 6 can ensure the descent of the inner pipe 7. When the movable plate 903 touches the top of the core column, it stops descending. The fixed plate 901 continues to descend. When the movable plate 903 touches the proximity switch 907, start the projection lamp 906 to project red light onto the prompt ring 408. At this time, it means that the soil core is solidified, and the drilling can be manually stopped, or the proximity switch 907 can be directly connected to the control program to automatically stop the drilling;

[0074] If a underground cavity is drilled during core drilling, the anti-disengagement ring 10 can prevent the connecting and rotating cylinder 5 from falling and ensure that the core can be taken subsequently;

[0075] After the survey purpose is completed, reverse the above operations and take out the assembled rotary drum 5 one by one.

Claims

1. A core sampling device for a drilling rig, characterized in that, Comprising: An intermediate transmission frame (1), with a rotating sliding cylinder (102) rotatably arranged in the middle of the front end of the intermediate transmission frame (1) in cooperation with a bearing; a core drilling motor (101) is fixedly arranged on the top of the intermediate transmission frame (1), and the shaft end of the core drilling motor (101) is in gear transmission connection with the rotating sliding cylinder (102); a connecting rotating cylinder (5) is slidably arranged in the middle of the rotating sliding cylinder (102).

2. The core sampling device for a drilling rig according to claim 1, characterized in that, An arc-shaped groove (501) is circumferentially formed on the outside of the connecting rotating cylinder (5), and a sliding strip structure matching the arc-shaped groove (501) is arranged in the rotating sliding cylinder (102); an external thread structure is arranged on the top of the connecting rotating cylinder (5), and an internal thread structure is formed at the bottom of the connecting rotating cylinder (5), and two connecting rotating cylinders (5) can be combined and spliced through the internal and external thread structures; the bottom of the lowermost connecting rotating cylinder (5) is provided with a ground drilling ring head (6) through threaded connection, and the bottom of the ground drilling ring head (6) is a circumferential tooth-shaped structure; a conical annular flange extends downward and inward in the ground drilling ring head (6); an inner pipe (7) is fitted inside the connecting rotating cylinder (5), a bottom pipe (8) is fixedly arranged at the bottom of the inner pipe (7), and the bottom of the bottom pipe (8) is an inner conical structure and fits with the lower part inside the ground drilling ring head (6); a trigger (9) is installed above the inner pipe (7).

3. The core sampling device for a drilling rig according to claim 2, characterized in that, A brake electric cylinder (103) is fixedly arranged at the bottom of the intermediate transmission frame (1), and the telescopic end of the brake electric cylinder (103) faces forward; a brake frame (104) is fixedly arranged at the bottom of the intermediate transmission frame (1), and two brake clamping blocks (105) are rotatably arranged in the brake frame (104), the brake clamping blocks (105) are arc-shaped structures, and the two brake clamping blocks (105) can be buckled on the outside of the connecting rotating cylinder (5); swing rods (106) are integrally arranged outside the hinge joints of the brake clamping blocks (105), and two connecting rods (107) are hinged between the two swing rods (106) and the telescopic end of the brake electric cylinder (103).

4. The core sampling device for a drilling rig according to claim 3, characterized in that, Traveling frames (2) are fixedly arranged on both sides of the intermediate transmission frame (1), vertical support frames (3) are fixedly arranged on the tops of the traveling frames (2), and an upper control device (4) is fixedly arranged in the middle of the tops of the two vertical support frames (3); an electric cylinder (401) is fixedly arranged on the front side of the bottom of the upper control device (4), a pressing frame (402) is fixedly arranged at the telescopic end of the electric cylinder (401), and a wire passing hole (403) is formed in the rear side of the middle of the pressing frame (402); a prompting ring (408) is fixedly arranged at the bottom of the upper control device (4).

5. The core sampling device for a drill rig according to claim 4, characterized in that, A wire winding wheel (404) is rotatably arranged at the bottom of the upper control device (4), a winding motor (405) for driving the wire winding wheel (404) is fixedly arranged at the bottom of the upper control device (4); a turning pulley (406) is rotatably arranged at the bottom of the wire winding wheel (404); a suspension wire is arranged outside the wire winding wheel (404) and is fixedly provided with a hook (407) passing through the turning pulley (406), and the lower part of the hook (407) is a wedge-shaped structure; the hook (407) can pass through the wire passing hole (403).

6. The core sampling device for a drill rig according to claim 5, characterized in that, A suspension ring (701) is fixedly arranged in the middle of the top of the inner pipe (7), and the hook (407) can pass through the suspension ring (701).

7. The core sampling device for a drilling rig according to claim 6, wherein Six groups of anti-hooking grooves (801) are circumferentially formed on the side of the bottom pipe (8), and rotary anti-hooks (802) are hingedly arranged in the anti-hooking grooves (801); the outer positions at the tops of the anti-hooking grooves (801) are all provided with limiting structures.

8. The core sampling device for a drilling rig according to claim 7, characterized in that, The trigger (9) includes: A fixing plate (901) which is fixed above the interior of the inner pipe (7), and two suspension rods (902) are fixedly arranged at the bottom of the fixing plate (901); A movable plate (903) which slides above the interior of the inner pipe (7), a U-shaped frame (904) is fixedly arranged at the top of the movable plate (903), and retaining pieces are fixedly arranged on the suspension rods (902) after passing through the U-shaped frame (904); Discharge control holes (905), discharge control holes (905) are formed on one side of both the fixing plate (901) and the movable plate (903), and the upper and lower discharge control holes (905) are aligned; A projection lamp (906), a projection lamp (906) is fixedly arranged at the top of the fixing plate (901), and a proximity switch (907) is fixedly arranged at the bottom of the projection lamp (906); a storage battery for power supply is arranged at the bottom of the fixing plate (901); the projection lamp (906) is vertically aligned with the prompt ring (408).

9. The core sampling device for a drilling rig according to claim 8, wherein, A release prevention ring (10) is threadedly connected to the top of the connecting rotating cylinder (5), and a handwheel structure is integrally arranged above the exterior of the release prevention ring (10); a ring-shaped pad (1001) is rotatably arranged at the top of the release prevention ring (10), and the pressing frame (402) can contact the ring-shaped pad (1001) when the electric cylinder (401) extends.

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