Long core sample sampling device

Abstract

The utility model relates to the technical field of rock core sampling, in particular to a long rock core sampling device which comprises a rack, a displacement mechanism, a sampling assembly and a covering assembly, the covering assembly comprises a lower pressing plate arranged on the displacement plate and arranged on the supporting columns in a sleeving mode, a lower pressing sleeve arranged on the lower pressing plate, a lower pressing rod inserted into the lower pressing sleeve, a lower pressing spring arranged in the lower pressing sleeve and a connecting plate arranged on the supporting columns in a sleeving mode. According to the rock core sampling device, through the arrangement of the displacement mechanism and the sampling assembly, the displacement mechanism drives the sampling assembly to move, the rotating sampling rotating pipe samples a rock core, and through the arrangement of the pressing rod and the covering cylinder, the rock core can be sampled through the pressing rod and the covering cylinder; the covering cylinder is arranged on the sampling rotating pipe, so that when the sampling rotating pipe drills rocks, the rotating point of the sampling rotating pipe is covered, smoke dust and splashing broken stones are left in the covering cylinder, and the safety of workers is prevented from being harmed by the splashing broken stones.

Description

TECHNICAL FIELD

[0001] The utility model relates to core sampling technical field, concretely is a long core sample sampling device. BACKGROUND

[0002] Long core sample sampling is a geological exploration technology, which is used for obtaining long section core samples from underground to study the composition, structure, physical properties and reservoir characteristics of underground rock layers. This method is widely used in the fields of oil and gas exploration, mineral resources investigation and environmental research.

[0003] The long core test sampler for oil and gas field exploration provided in the publication CN220473014U includes a device body and a mounting frame, an outer frame is arranged in the device body, a threaded rod is arranged on the outer frame, an upper horizontal plate is arranged on the top of the outer frame, and a motor is mounted on the upper horizontal plate, the motor is in transmission connection with the threaded rod, a moving block is arranged on one side of the mounting frame and penetrates through the threaded rod, a driver and a sampling head are arranged on the upper and lower ends of the mounting frame respectively, and the driver and the sampling head are in transmission connection, two groups of water storage tanks are arranged on the outer frame, and a water pump is arranged on the water storage tank.

[0004] However, when the long core test sampler for oil and gas field exploration is used, the sampling head is used to drill holes in the rock, and the rapid friction between the sampling head and the rock will generate a large amount of smoke dust, which will affect the normal work of the workers, and even the sampling head will break off small pieces of rock and bring danger to the workers nearby. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a long core sample sampling device to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A long core sample sampling device includes:

[0008] A rack includes a top plate and a bottom plate, and a support is arranged between the bottom plate and the top plate;

[0009] A displacement mechanism includes a displacement motor arranged on the top plate, a lead screw arranged on the displacement motor, a sliding block arranged on the lead screw, and a displacement plate arranged on the sliding block;

[0010] A sampling assembly includes a sampling motor arranged on the displacement plate and a sampling rotating tube arranged on the sampling motor, and the sampling motor is used to drive the sampling rotating tube to rotate;

[0011] The covering assembly comprises a pressing plate arranged on the displacement plate and sleeved on the support column, a pressing sleeve arranged on the pressing plate, a pressing rod inserted in the pressing sleeve, a pressing spring arranged in the pressing sleeve, a connecting plate sleeved on the support column, a covering cylinder arranged on the connecting plate and sleeved on the sampling rotary tube, and a reset spring sleeved on the support column and connected with the connecting plate.

[0012] Preferably, the bottom plate is provided with a rotating hole groove, and the top plate is provided with a displacement groove.

[0013] Preferably, the covering cylinder comprises a base cylinder arranged on the connecting plate and sleeved on the sampling rotary tube, a retraction groove arranged on the base cylinder, a displacement cylinder inserted in the retraction groove, a covering spring arranged in the retraction groove and connected with the displacement cylinder, and a rubber ring arranged on the displacement cylinder.

[0014] Preferably, when the connecting plate is pushed by the pressing rod and the displacement cylinder is retracted into the retraction groove, the rubber ring is tightly attached to the ground, and the covering spring is used to push the displacement cylinder back to the original position when the pressing rod leaves the connecting plate.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The displacement mechanism drives the sampling assembly to move, and the rotating sampling rotary tube samples the rock core; the pressing rod and the covering cylinder are arranged, the sampling rotary tube is covered when drilling the rock, the smoke and the splashed stones are left in the covering cylinder, and the safety of the workers is protected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 It is a sectional structure schematic view of the utility model;

[0019] Fig. 3 It is a sectional structure schematic view of the covering cylinder of the utility model.

[0020] In the figure: 1, top plate; 2, bottom plate; 3, support column; 4, displacement motor; 5, lead screw; 6, sliding block; 7, displacement plate; 8, sampling motor; 9, sampling rotating tube; 10, pressing plate; 11, pressing sleeve; 12, pressing rod; 13, pressing spring; 14, connecting plate; 15, reset spring; 16, rotating hole groove; 17, displacement groove; 18, base cylinder; 19, retraction groove; 20, displacement cylinder; 21, cover spring; 22, rubber ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figs. 1 to 3 The utility model provides a technical scheme:

[0023] A long core sample sampling device, comprising:

[0024] The rack comprises a top plate 1 and a bottom plate 2. A support column 3 is arranged between the bottom plate 2 and the top plate 1. One end of the support column 3 is fixedly connected with the bottom plate 2 by welding or arranging a bolt. The other end of the support column 3 is fixedly connected with the top plate 1 by welding or arranging a bolt. A rotating hole groove 16 is formed in the bottom plate 2. The rotating hole groove is arranged at the center of the bottom plate 2. A displacement groove 17 is formed in the top plate 1.

[0025] The displacement mechanism comprises a displacement motor 4, a lead screw 5, a sliding block 6 and a displacement plate 7. The displacement motor 4 is arranged on the top plate 1 and is fixedly connected with the top plate 1 by arranging a bolt. The lead screw 5 is arranged on the displacement motor 4 and is connected with the bottom plate 2 through the top plate 1. The lead screw 5 is fixedly connected with the displacement motor 4 by arranging a shaft coupling. The other end of the lead screw 5 is fixedly connected with the bottom plate 2 by arranging a bearing. The sliding block 6 is arranged on the lead screw 5 and is movably connected with the lead screw 5, so that the sliding block 6 and the lead screw 5 form a ball screw. The displacement plate 7 is arranged on the sliding block 6 and is fixedly connected with the sliding block 6 by welding. The displacement motor 4 is used to drive the lead screw 5 to rotate, so that the sliding block 6 moves along the lead screw 5 and drives the displacement plate 7 to move along the lead screw 5.

[0026] The sampling assembly comprises a sampling motor 8 and a sampling rotating tube 9. The sampling motor 8 is arranged on the displacement plate 7 and is fixedly connected with the displacement plate 7 by means of bolts or the like. The sampling rotating tube 9 is arranged on the sampling motor 8 and is fixedly connected with the sampling motor 8 by means of a connecting shaft or the like. The sampling motor 8 is used to drive the sampling rotating tube 9 to rotate, so as to rotate the rock and make the core sample stay in the sampling rotating tube 9.

[0027] The covering assembly comprises a pressing plate 10, a pressing sleeve 11, a pressing rod 12, a pressing spring 13, a connecting plate 14, a covering cylinder and a reset spring 15. The pressing plate 10 is arranged on the displacement plate 7 and is sleeved on the support column 3. The pressing plate 10 is fixedly connected with the displacement plate 7 by means of welding or the like. The pressing plate 10 is movably connected with the support column 3. The pressing sleeve 11 is arranged on the pressing plate 10 and is fixedly connected with the pressing plate 10 by means of welding or the like. The pressing rod 12 is inserted into the pressing sleeve 11 and is movably connected with the pressing sleeve 11. The pressing spring 13 is arranged in the pressing sleeve 11. One end of the pressing spring 13 is fixedly connected with the pressing sleeve 11 by means of welding or the like. The other end of the pressing spring 13 is fixedly connected with the pressing rod 12 by means of welding or the like. The connecting plate 14 is sleeved on the support column 3 and is movably connected with the support column 3. The reset spring 15 is sleeved on the support column 3 and is connected with the connecting plate 14. One end of the reset spring 15 is fixedly connected with the connecting plate 14 by means of welding or the like. The other end of the reset spring 15 is fixedly connected with the bottom plate 2 by means of welding or the like.

[0028] The covering cylinder comprises a base cylinder 18, a retracting groove 19, a displacement cylinder 20, a covering spring 21 and a rubber ring 22. The base cylinder 18 is arranged on the connecting plate 14 and is sleeved on the sampling rotating tube 9. The base cylinder 18 is fixedly connected with the connecting plate 14 by means of welding or the like. The retracting groove 19 is arranged on the base cylinder 18. The displacement cylinder 20 is inserted into the retracting groove 19 and is movably connected with the side wall of the retracting groove 19. The covering spring 21 is arranged in the retracting groove 19 and is connected with the displacement cylinder 20. One end of the covering spring 21 is fixedly connected with the inner wall of the retracting groove 19 by means of welding or the like. The other end of the covering spring 21 is fixedly connected with the displacement cylinder 20 by means of welding or the like. The rubber ring 22 is arranged on the displacement cylinder 20 and is fixedly connected with the displacement cylinder 20 by means of bolts or the like.

[0029] Working principle: when in use, the displacement motor 4 is started to drive the displacement plate 7 to move downward, so as to drive the pressing rod 12 to move downward and contact the connecting plate 14, thereby pushing the displacement cylinder 20 into the retracting groove 19 and making the rubber ring 22 tightly contact the ground. Meanwhile, the sampling motor 8 is started to make the rotating sampling rotating tube 9 insert into the ground to sample. Then, the displacement motor 4 drives the sampling rotating tube 9 to be taken out of the ground and the reset spring 15 pushes the covering cylinder to reset. Finally, the sample is taken out of the sampling rotating tube 9.

[0030] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A long core sampling device, characterized by, The utility model relates to a soil sampling device, which comprises the following parts: a rack comprising a top plate and a bottom plate, and a support column arranged between the bottom plate and the top plate; a displacement mechanism comprising a displacement motor arranged on the top plate, a lead screw arranged on the displacement motor, a sliding block arranged on the lead screw, and a displacement plate arranged on the sliding block; a sampling assembly comprising a sampling motor arranged on the displacement plate and a sampling rotating tube arranged on the sampling motor, wherein the sampling motor is used to drive the sampling rotating tube to rotate; a covering assembly comprising a pressing plate arranged on the displacement plate and sleeved on the support column, a pressing sleeve arranged on the pressing plate, a pressing rod inserted into the pressing sleeve, a pressing spring arranged in the pressing sleeve, a connecting plate sleeved on the support column, a covering cylinder arranged on the connecting plate and sleeved on the sampling rotating tube, and a reset spring sleeved on the support column and connected with the connecting plate, wherein the displacement motor is used to drive the displacement plate to move, so that the pressing rod pushes the covering cylinder to move closely to the ground while the rotating sampling rotating tube is inserted into the ground, and the reset spring pushes the covering cylinder to return to the original position when the displacement motor drives the sampling rotating tube to move away from the ground.

2. A long core sample taking device according to claim 1, characterized in that: A rotating hole groove is arranged on the bottom plate, and a displacement groove is arranged on the top plate.

3. The long core sample device of claim 1, wherein: The covering cylinder comprises a base cylinder arranged on the connecting plate and sleeved on the sampling rotating tube, a retraction groove arranged on the base cylinder, a displacement cylinder inserted into the retraction groove, a covering spring arranged in the retraction groove and connected with the displacement cylinder, and a rubber ring arranged on the displacement cylinder.

4. A long core sample taking device according to claim 3, wherein: When the connecting plate is pushed by the pressing rod, the displacement cylinder is retracted into the retraction groove, and the rubber ring closely contacts the ground, and the covering spring is used to push the displacement cylinder to return to the original position when the pressing rod moves away from the connecting plate.

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