A new type of clamping mechanism for marine coring devices

Abstract

The utility model relates to clamping mechanism technical field discloses a kind of clamping mechanism of novel marine drilling coring device, including outer tube, inner tube is movably installed in the outer tube, the top of the inner tube is fixedly installed with connecting cover, and fishing block is arranged in the outer tube.The utility model is placed into outer tube by steel cable with fishing block, when fishing block reaches the top of connecting cover, cooperate between the hemispherical shape of the top of iron block and guide block, iron block can lead fishing block to enter connecting cover quickly, without adjusting multiple times, when pulling steel cable and driving fishing block to move up, the iron block on fishing block will drive moving block to move up together, the movable rod on moving block will be inserted into movable slot at this time, the clamping block will be clamped in the back of iron block at this time, fishing block is fixed in connecting cover, the clamping of fishing block is completed, so as to reach the clamping structure that fishing device can be fixed to the inner tube without adjusting fishing device position multiple times, it is very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping mechanism technical field especially relates to a novel ocean drilling coring device's clamping mechanism. BACKGROUND

[0002] Ocean drilling often uses the rope coring drilling method to take the core. Its operation feature is that when taking the core, the whole drill rod column in the borehole does not need to be taken out, but a special fishing tool with a steel wire rope is used to take the inner tube at the bottom of the hole with the core to the ground through the center hole of the drill rod in the hole to obtain the core, thereby reducing the number of tripping and auxiliary time of lifting the drilling tool and improving the drilling efficiency.

[0003] The inner tube top of the existing rope coring drilling device usually installs a clamping structure, the clamping mechanism can clamp the top end of the fishing tool, thereby facilitating the worker above to take the inner tube to the ground, when the inner tube carries the clamping structure at the seabed, the worker cannot observe the position of the clamping mechanism, and it is difficult to quickly clamp the fishing tool into the clamping mechanism, and it is very troublesome to need to adjust the position of the fishing tool many times. SUMMARY

[0004] The utility model discloses a novel ocean drilling coring device's clamping mechanism to solve the technical problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A novel ocean drilling coring device's clamping mechanism, including the outer tube, the outer tube is movably installed with the inner tube, the top of the inner tube is fixedly installed with the connecting cover, the outer tube is provided with the fishing block, the top of the fishing block is fixedly installed with the steel cable, the bottom of the fishing block is fixedly installed with the iron block, the top of the connecting cover is fixedly installed with the guide block, the connecting cover is fixedly installed with the fixed block in, the bottom of the connecting cover is provided with the movable block, the movable block is fixedly installed with the magnetic block at the middle position.

[0007] As a further scheme of the utility model, the middle of the fixed block is provided with a connecting groove, the iron block can pass through the connecting groove, the bottom of the fixed block is provided with a movable slot, the movable slot is provided with a clamping block at the top, the clamping block is movably installed on the fixed block, one end of the clamping block penetrates the side wall of the fixed block, the back of the clamping block is inclined downward, the top of the clamping block is fixedly installed with a stop block, the side of the stop block close to the connecting groove is fixedly installed with a spring.

[0008] As a further scheme of the utility model, the top of the movable block is fixedly installed with a movable rod at the position corresponding to the movable slot, the movable rod can be movably clamped in the movable slot, the top of the movable rod is provided with an inclined surface corresponding to the back of the clamping block.

[0009] As a further scheme of the utility model, the two sides of the movable block are fixedly installed with limiting blocks, the connecting cover is provided with limiting grooves corresponding to the positions of the limiting blocks, and the limiting blocks can be movably clamped into the limiting grooves.

[0010] As a further scheme of the utility model, the sidewall of the connecting cover is fixedly installed with a protective ring, and the protective ring is movably installed with a movable wheel.

[0011] As a further scheme of the utility model, the guide block is funnel-shaped with the upper part being wide and the lower part being narrow.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In the utility model, the fishing block is placed into the outer pipe through the steel cable, and when the fishing block reaches above the connecting cover, the fishing block can be quickly led into the connecting cover through cooperation between the hemispherical top of the iron block and the guide block, without the need for multiple adjustments; when the fishing block is pulled upward by the steel cable, the iron block on the fishing block will drive the movable block to move upward, at this time, the movable rod on the movable block will be inserted into the movable groove, and the clamping block will be clamped on the back of the iron block, so that the fishing block is fixed in the connecting cover, the clamping of the fishing block is completed, the fishing tool can be quickly fixed into the clamping structure of the inner pipe without multiple adjustments of the position of the fishing tool, and the utility model is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an overall structural schematic view of the clamping mechanism of the novel marine drilling coring device;

[0015] Figure 2 It is an internal structural schematic view of the connecting cover of the clamping mechanism of the novel marine drilling coring device;

[0016] Figure 3 It is an overall structural schematic view of the clamping mechanism of the novel marine drilling coring device; Figure 2 It is an enlarged view of A in the utility model;

[0017] Figure 4 It is a protective ring structural schematic view of the clamping mechanism of the novel marine drilling coring device.

[0018] In the drawing: 1, outer pipe; 2, inner pipe; 3, connecting cover; 4, fishing block; 5, steel cable; 6, iron block; 7, protective ring; 8, movable wheel; 9, limiting groove; 10, guide block; 11, fixed block; 12, connecting groove; 13, movable block; 14, limiting block; 15, movable rod; 16, magnetic block; 17, movable groove; 18, clamping block; 19, stop block; 20, spring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0022] Referring to Figures 1-4 A clamping mechanism of a novel marine drilling coring device, comprising an outer pipe 1, an inner pipe 2 movably installed in the outer pipe 1, a connecting cover 3 fixedly installed at the top of the inner pipe 2, a fishing block 4 arranged in the outer pipe 1, a steel cable 5 fixedly installed at the top of the fishing block 4, an iron block 6 fixedly installed at the bottom of the fishing block 4, a guide block 10 fixedly installed at the top of the connecting cover 3, a fixed block 11 fixedly installed in the connecting cover 3, a movable block 13 arranged at the bottom of the connecting cover 3, a magnetic block 16 fixedly installed at the middle position of the movable block 13.

[0023] In the embodiment, the middle of the fixed block 11 is provided with a connecting groove 12, the iron block 6 can pass through the connecting groove 12, the bottom of the fixed block 11 is provided with a movable groove 17, the movable groove 17 is provided with a clamping block 18 at the top, the clamping block 18 is movably installed on the fixed block 11, one end of the clamping block 18 penetrates the side wall of the fixed block 11, the back of the clamping block 18 is downwardly inclined, the top of the clamping block 18 is fixedly installed with a stop block 19, the side of the stop block 19 close to the connecting groove 12 is fixedly installed with a spring 20, the top of the movable block 13 is fixedly installed with a movable rod 15 corresponding to the position of the movable groove 17, the movable rod 15 can be clamped in the movable groove 17, the top of the movable rod 15 is provided with an inclined surface corresponding to the back of the clamping block 18, when the steel cable 5 is pulled to drive the fishing block 4 to move upwards, the iron block 6 on the fishing block 4 will drive the movable block 13 to move upwards, at this time, the movable rod 15 on the movable block 13 will be inserted into the movable groove 17, with the movement of the top of the movable rod 15, the clamping block 18 will be pushed out of the movable groove 17, at this time, the clamping block 18 will be clamped on the back of the iron block 6, the fishing block 4 is fixed in the connecting cover 3, and the clamping of the fishing block 4 is completed.

[0024] In the embodiment, the two sides of the movable block 13 are fixedly installed with limiting blocks 14, the connecting cover 3 is provided with limiting grooves 9 corresponding to the positions of the limiting blocks 14, the limiting blocks 14 can be clamped in the limiting grooves 9, when disassembling, the limiting blocks 14 on the two sides of the movable block 13 are limited by tools, then the iron block 6 is directly pulled out, and the separation is completed, which is very fast.

[0025] In the embodiment, the side wall of the connecting cover 3 is fixedly installed with a protective ring 7, the protective ring 7 is movably installed with a movable wheel 8, the movable wheel 8 can prevent the connecting cover 3 from constantly impacting the inner wall of the outer pipe 1 when moving in the outer pipe 1, so as to cause the abrasion of the inner wall of the outer pipe 1.

[0026] In the embodiment, the guide block 10 is funnel-shaped with the top being wider and the bottom being narrower, through the cooperation between the hemispherical shape of the top of the iron block 6 and the guide block 10, the iron block 6 can lead the fishing block 4 to quickly enter the connecting cover 3, without the need for multiple adjustments.

[0027] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: when the core in the inner tube 2 is filled, the fishing block 4 is placed into the outer tube 1 through the steel cable 5, when the fishing block 4 reaches above the connecting cover 3, the iron block 6 can lead the fishing block 4 to enter the connecting cover 3 quickly through the cooperation between the hemispherical top of the iron block 6 and the guide block 10, without needing to adjust for many times, when the iron block 6 passes through the connecting groove 12 and enters the bottom of the connecting cover 3, since the iron block 6 is made of iron, the magnetic block 16 on the movable block 13 can be quickly adsorbed on the iron block 6, when the steel cable 5 is pulled to drive the fishing block 4 to move upwards, the iron block 6 on the fishing block 4 can drive the movable block 13 to move upwards together, at this time, the movable rod 15 on the movable block 13 can be inserted into the movable slot 17, with the top of the movable rod 15, the clamping block 18 can be pushed out from the movable slot 17, at this time, the clamping block 18 can be clamped on the back of the iron block 6, the fishing block 4 is fixed in the connecting cover 3, the clamping of the fishing block 4 is completed, then the steel cable 5 can be pulled to take the inner tube 2 out of the outer tube 1, so that the clamping structure for quickly fixing the fishing device to the inner tube 2 without adjusting the position of the fishing device for many times is achieved, which is very convenient, when the fishing device is disassembled, the movable block 13 only needs to be moved to the bottom of the connecting cover 3, at this time, the movable rod 15 is removed from the back of the clamping block 18, the clamping block 18 is reset through the spring 20, then the limiting block 14 on both sides of the movable block 13 is limited through a tool, then the iron block 6 is directly pulled out to complete the separation, which is very fast, the movable wheel 8 can prevent the connecting cover 3 from constantly impacting the inner wall of the outer tube 1 when moving in the outer tube 1, causing the abrasion of the inner wall of the outer tube 1.

[0028] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, under the premise of not departing from the spirit and range of the utility model, the utility model will also have various changes and improvements, these changes and improvements all fall into the range of the utility model claimed for protection. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A clamping mechanism of a novel marine drilling coring device, comprising an outer tube (1), an inner tube (2) movably installed in the outer tube (1), a connecting cover (3) fixedly installed at the top of the inner tube (2), a fishing block (4) provided in the outer tube (1), a steel cable (5) fixedly installed at the top of the fishing block (4), and an iron block (6) fixedly installed at the bottom of the fishing block (4), characterized in that, The top of the connecting cover (3) is fixedly provided with a guide block (10), the connecting cover (3) is fixedly provided with a fixed block (11) inside, the bottom of the connecting cover (3) is provided with a movable block (13) inside, and the middle position of the movable block (13) is fixedly provided with a magnetic block (16).

2. A novel chucking mechanism for a marine coring device as claimed in claim 1, wherein, The middle of the fixed block (11) is provided with a connecting groove (12), the iron block (6) can pass through the connecting groove (12), the bottom of the fixed block (11) is provided with a movable groove (17), the movable groove (17) is provided with a clamping block (18) at the top, the clamping block (18) is movably arranged on the fixed block (11), one end of the clamping block (18) penetrates the side wall of the fixed block (11), the back of the clamping block (18) is downwardly inclined, the top of the clamping block (18) is fixedly provided with a stop block (19), and the side of the stop block (19) close to the connecting groove (12) is fixedly provided with a spring (20).

3. A novel chucking mechanism for a marine coring device according to claim 2, wherein, The top of the movable block (13) is fixedly provided with a movable rod (15) at the position corresponding to the movable groove (17), the movable rod (15) can be movably clamped in the movable groove (17), and the top of the movable rod (15) is provided with an inclined surface corresponding to the back of the clamping block (18).

4. A novel chucking mechanism for a marine coring device as claimed in claim 1, wherein, The two sides of the movable block (13) are fixedly provided with limiting blocks (14), the connecting cover (3) is provided with limiting grooves (9) at positions corresponding to the limiting blocks (14), and the limiting blocks (14) can be movably clamped in the limiting grooves (9).

5. A novel chucking mechanism for a marine coring device as claimed in claim 1, wherein, The side wall of the connecting cover (3) is fixedly provided with a protective ring (7), and the protective ring (7) is movably provided with a movable wheel (8).

6. A novel chucking mechanism for a marine coring device as claimed in claim 1, wherein, The guide block (10) is funnel-shaped with the top being wider than the bottom.

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