CN217401323U - Hydraulic conducting structure for fixed-point core drilling tool - Google Patents
Hydraulic conducting structure for fixed-point core drilling tool Download PDFInfo
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- CN217401323U CN217401323U CN202220838983.6U CN202220838983U CN217401323U CN 217401323 U CN217401323 U CN 217401323U CN 202220838983 U CN202220838983 U CN 202220838983U CN 217401323 U CN217401323 U CN 217401323U
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Abstract
The utility model discloses a hydraulic pressure conduction structure for a fixed-point coring drilling tool, which comprises a shell, wherein a cavity is arranged in the shell, one end of the cavity is provided with a liquid inlet, the middle part of the cavity is provided with a one-way conduction structure, the other end of the cavity is provided with a coring structure, and a piston is arranged between the one-way conduction structure and the coring structure in the cavity; the core taking structure comprises a core taking pipe, one end of the core taking pipe is sealed through an end sealing structure, and a driving pipe is fixedly sleeved outside the core taking pipe; the outer wall of the end sealing structure is provided with an annular groove, the driving pipe is provided with an eccentric insertion hole, a limiting pin is arranged in the eccentric insertion hole, and the limiting pin penetrates through the annular groove and the eccentric insertion hole. The utility model is used for the circulation of liquid in the control drilling tool to fixed mode to the structure of coring has improved, is favorable to taking off the structure of coring from the cutter, has reasonable in design, advantage such as operation stability.
Description
Technical Field
The utility model relates to a fixed point coring bit especially relates to a hydraulic pressure conduction structure for fixed point coring bit.
Background
At present, the state of a coring structure of a coring drilling tool in the market is controlled in a hydraulic control mode, and the problems of unreasonable structural design and unstable operation exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic pressure switch on structure for fixed point coring drilling tool for the circulation of liquid in the control drilling tool, and improved the fixed mode of coring structure, be favorable to taking off the coring structure from the cutter.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a hydraulic conducting structure for a fixed-point coring drilling tool comprises a shell, wherein a cavity is arranged in the shell, one end of the cavity is provided with a liquid inlet, the middle part of the cavity is provided with a one-way conducting structure, the other end of the cavity is provided with a coring structure, and a piston is arranged between the one-way conducting structure and the coring structure in the cavity; the core taking structure comprises a core taking pipe, one end of the core taking pipe is sealed through an end sealing structure, and a driving pipe is fixedly sleeved outside the core taking pipe; the outer wall of the end sealing structure is provided with an annular groove, the driving pipe is provided with an eccentric insertion hole, a limiting pin is arranged in the eccentric insertion hole, and the limiting pin penetrates through the annular groove and the eccentric insertion hole; the piston comprises a blocking plate and a cylinder body, one end of the cylinder body is sealed by the blocking plate, the other end of the cylinder body faces the end sealing structure, and the inner diameter of the cylinder body is larger than that of the end sealing structure; the barrel is provided with an inserting plate, a slot is formed in the position, corresponding to the inserting plate, of the driving pipe, and the limiting pin penetrates through the slot.
In the aforesaid a hydraulic pressure conduction structure for fixed point coring drilling tool, the one-way conduction structure includes the backup pad, and the backup pad is fixed in the cavity, has the conducting hole in the backup pad, is provided with the gag lever post in the backup pad, and the cover is equipped with reset spring on the gag lever post, and reset spring's one end is contradicted the dog, and reset spring's the other end is contradicted the backup pad, the annular binding off has in the cavity, the dog with the laminating is closed off to the annular.
In the hydraulic conducting structure for the fixed-point core drilling tool, the annular closing-in is provided with an inclined plane, the inclined plane of the annular closing-in is attached to the stop block, the stop block is provided with the sealing ring, and the sealing ring is located between the stop block and the inclined plane.
In the hydraulic conducting structure for the fixed-point core drill, the casing is provided with a through hole, the through hole is internally provided with a fixing bolt, the end sealing structure is provided with a threaded hole, the fixing bolt is arranged in the threaded hole, the number of the threaded holes is two, and the two threaded holes are symmetrically arranged on the end sealing structure.
In the hydraulic conducting structure for the fixed-point core drill, the end sealing structure is provided with a through hole, one end of the end sealing structure, which is close to the piston, is provided with a sealing nut, and the sealing nut is provided with sealing rubber.
Compared with the prior art, the utility model is used for the circulation of liquid in the control drilling tool to fixed mode to the structure of coring is improved, is favorable to taking off the structure of coring from the cutter, has reasonable in design, moves advantages such as stable.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment;
fig. 3 is another cross-sectional view.
Reference numerals: 1-cavity, 2-shell, 3-stop block, 4-return spring, 5-support plate, 6-piston, 7-cylinder, 8-slot, 9-end sealing structure, 10-coring tube, 11-annular closing-in, 12-sealing ring, 13-limiting rod, 14-blocking plate, 15-through hole, 16-sealing rubber, 17-sealing nut, 18-perforation, 19-fixing bolt, 20-limiting pin and 21-inserting plate.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Detailed Description
Example 2: a hydraulic conducting structure for a fixed-point core drill comprises a shell 2, wherein a cavity 1 is arranged in the shell 2, one end of the cavity 1 is provided with a liquid inlet, the middle part of the cavity 1 is provided with a one-way conducting structure, the other end of the cavity 1 is provided with a core structure, and a piston 6 is arranged between the one-way conducting structure and the core structure in the cavity 1; the core taking structure comprises a core taking pipe 10, one end of the core taking pipe 10 is sealed through an end sealing structure 9, and a driving pipe is fixedly sleeved outside the core taking pipe 10; the outer wall of the end sealing structure 9 is provided with an annular groove, the driving pipe is provided with an eccentric insertion hole, a limit pin 20 is arranged in the eccentric insertion hole, and the limit pin 20 penetrates through the annular groove and the eccentric insertion hole; the piston 6 comprises a blocking plate 14 and a cylinder 7, the blocking plate 14 seals one end of the cylinder 7, the other end of the cylinder 7 faces the end sealing structure 9, and the inner diameter of the cylinder 7 is larger than that of the end sealing structure 9; an inserting plate 21 is arranged on the cylinder body 7, a slot 8 is arranged on the driving pipe at a position corresponding to the inserting plate 21, and the limiting pin 20 penetrates through the slot 8.
The one-way conduction structure includes backup pad 5, and backup pad 5 is fixed in cavity 1, has the conducting hole on backup pad 5, is provided with gag lever post 13 on the backup pad 5, and the cover is equipped with reset spring 4 on the gag lever post 13, and reset spring 4's one end is contradicted dog 3, and reset spring 4's the other end is contradicted backup pad 5, have annular binding off 11 in the cavity 1, dog 3 with the laminating of annular binding off 11. The annular closing-in 11 is provided with an inclined plane, the inclined plane of the annular closing-in 11 is attached to the stop block 3, the stop block 3 is provided with a sealing ring 12, and the sealing ring 12 is positioned between the stop block 3 and the inclined plane.
Example 3: a hydraulic conducting structure for a fixed-point coring drilling tool comprises a shell 2, wherein a cavity 1 is arranged in the shell 2, one end of the cavity 1 is provided with a liquid inlet, the middle part of the cavity 1 is provided with a one-way conducting structure, the other end of the cavity 1 is provided with a coring structure, and a piston 6 is arranged between the one-way conducting structure and the coring structure in the cavity 1; the core taking structure comprises a core taking pipe 10, one end of the core taking pipe 10 is sealed through an end sealing structure 9, and a driving pipe is fixedly sleeved outside the core taking pipe 10; an annular groove is formed in the outer wall of the end sealing structure 9, an eccentric insertion hole is formed in the driving pipe, a limiting pin 20 is arranged in the eccentric insertion hole, and the limiting pin 20 penetrates through the annular groove and the eccentric insertion hole; the piston 6 comprises a blocking plate 14 and a cylinder 7, the blocking plate 14 seals one end of the cylinder 7, the other end of the cylinder 7 faces the end sealing structure 9, and the inner diameter of the cylinder 7 is larger than that of the end sealing structure 9; an inserting plate 21 is arranged on the cylinder body 7, a slot 8 is arranged on the driving pipe at a position corresponding to the inserting plate 21, and the limiting pin 20 penetrates through the slot 8.
The one-way conduction structure includes backup pad 5, and backup pad 5 is fixed in cavity 1, has the conducting hole on backup pad 5, is provided with gag lever post 13 on the backup pad 5, and the cover is equipped with reset spring 4 on the gag lever post 13, and reset spring 4's one end is contradicted dog 3, and reset spring 4's the other end is contradicted backup pad 5, have annular binding off 11 in the cavity 1, dog 3 with the laminating of annular binding off 11. The annular closing-in 11 is provided with an inclined plane, the inclined plane of the annular closing-in 11 is attached to the stop block 3, the stop block 3 is provided with a sealing ring 12, and the sealing ring 12 is positioned between the stop block 3 and the inclined plane.
The outer shell 2 is provided with a through hole 18, a fixing bolt 19 is arranged in the through hole 18, the end sealing structure 9 is provided with a threaded hole, the fixing bolt 19 is arranged in the threaded hole, the number of the threaded holes is two, and the two threaded holes are symmetrically arranged on the end sealing structure 9. The end sealing structure 9 is provided with a through hole 15, one end of the end sealing structure 9 close to the piston 6 is provided with a sealing nut 17, and the sealing nut 17 is provided with a sealing rubber 16.
The utility model discloses a theory of operation of embodiment: the shell 2 is provided with a cutter, the cutter cuts materials in the operation process, and a sample enters the sampling structure in the cutting process. The cavity 1 is filled with liquid, after coring operation is completed, the pressure in the cavity 1 is increased, the pressure of the liquid on the stop dog 3 is greater than the extrusion force of the reset spring 4 on the stop dog, the reset spring 4 is further contracted, the liquid enters the downstream of the cavity 1, body fluid acts on the piston 6 through the conducting hole, the piston 6 moves towards the end sealing structure 9, the inserting plate 21 of the piston enters the inserting groove, the inserting plate 21 cuts off the limit pin 20, the coring structure is taken out after the limit pin 20 is cut off, and the coring structure can be taken down from the driving pipe only by detaching the fixing bolt 19.
In the moving process of the piston 6, the hydraulic pressure of the downstream of the piston 6 is also changed, the liquid with increased pressure acts on the downstream equipment to drive the downstream structure to move, the gear is driven to rotate in the moving process, and the rotating gear drives the valve to be closed, so that the sample is sealed in the coring structure. Concretely, the drilling tool passes through the cutter at the in-process sample of operation and gets into the coring pipe, accomplishes the sample back, and the drive tube removes, and the drive tube that removes passes through the insection area and drives drive gear rotation, and drive gear drives the switch tube and rotates, and pivoted switch tube converts the on-state into the closed condition, seals up the sample and deposits in the coring pipe.
Claims (5)
1. A hydraulic conducting structure for a fixed-point coring drilling tool is characterized by comprising a shell (2), wherein a cavity (1) is arranged in the shell (2), a liquid inlet is formed in one end of the cavity (1), a one-way conducting structure is arranged in the middle of the cavity (1), a coring structure is arranged at the other end of the cavity (1), and a piston (6) is arranged between the one-way conducting structure and the coring structure in the cavity (1); the core taking structure comprises a core taking pipe (10), one end of the core taking pipe (10) is sealed through an end sealing structure (9), and a driving pipe is fixedly sleeved outside the core taking pipe (10); an annular groove is formed in the outer wall of the end sealing structure (9), an eccentric insertion hole is formed in the driving pipe, a limiting pin (20) is arranged in the eccentric insertion hole, and the limiting pin (20) penetrates through the annular groove and the eccentric insertion hole; the piston (6) comprises a blocking plate (14) and a cylinder body (7), one end of the cylinder body (7) is sealed by the blocking plate (14), the other end of the cylinder body (7) faces the end sealing structure (9), and the inner diameter of the cylinder body (7) is larger than that of the end sealing structure (9); an inserting plate (21) is arranged on the barrel body (7), a slot (8) is formed in the position, corresponding to the inserting plate (21), on the driving pipe, and the limiting pin (20) penetrates through the slot (8).
2. The hydraulic conducting structure for the fixed-point core drill according to claim 1, wherein the one-way conducting structure comprises a supporting plate (5), the supporting plate (5) is fixed in the cavity (1), a conducting hole is formed in the supporting plate (5), a limiting rod (13) is arranged on the supporting plate (5), a reset spring (4) is sleeved on the limiting rod (13), one end of the reset spring (4) abuts against the stop block (3), the other end of the reset spring (4) abuts against the supporting plate (5), an annular closing-in hole (11) is formed in the cavity (1), and the stop block (3) and the annular closing-in hole (11) are attached to each other.
3. The hydraulic conducting structure for the point core drill according to claim 2, characterized in that the annular closing-in (11) has an inclined surface, the inclined surface of the annular closing-in (11) is attached to the stopper (3), the stopper (3) has a sealing ring (12), and the sealing ring (12) is located between the stopper (3) and the inclined surface.
4. A hydraulic feedthrough for a spot core drill according to claim 3, characterized in that the housing (2) has a through-hole (18), the through-hole (18) has a fixing bolt (19) therein, the end seal (9) has a threaded hole, the fixing bolt (19) is disposed in the threaded hole, the number of the threaded holes is two, and the two threaded holes are symmetrically disposed on the end seal (9).
5. The hydraulic feedthrough for a spot core drill according to claim 4, characterized in that the end seal (9) has a through hole (15), the end seal (9) near the piston (6) has a gland nut (17), and the gland nut (17) has a sealing rubber (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220838983.6U CN217401323U (en) | 2022-04-12 | 2022-04-12 | Hydraulic conducting structure for fixed-point core drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220838983.6U CN217401323U (en) | 2022-04-12 | 2022-04-12 | Hydraulic conducting structure for fixed-point core drilling tool |
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| Publication Number | Publication Date |
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| CN217401323U true CN217401323U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220838983.6U Active CN217401323U (en) | 2022-04-12 | 2022-04-12 | Hydraulic conducting structure for fixed-point core drilling tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961616A (en) * | 2022-05-31 | 2022-08-30 | 重庆文理学院 | Fixed point core drill bit structure |
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2022
- 2022-04-12 CN CN202220838983.6U patent/CN217401323U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961616A (en) * | 2022-05-31 | 2022-08-30 | 重庆文理学院 | Fixed point core drill bit structure |
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