CN214365918U - Rock core drilling tool auxiliary device - Google Patents
Rock core drilling tool auxiliary device Download PDFInfo
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- CN214365918U CN214365918U CN202120204809.1U CN202120204809U CN214365918U CN 214365918 U CN214365918 U CN 214365918U CN 202120204809 U CN202120204809 U CN 202120204809U CN 214365918 U CN214365918 U CN 214365918U
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Abstract
The application relates to a rock core drilling tool auxiliary device, it is including installing the water swivel that closes that is the cylindricality in the drill bit, close and set up the first perforation and the second perforation of mutual intercommunication on the water swivel, first perforation with the second is perforated and is located same axis, first perforation internal diameter is greater than the second is perforated the internal diameter, be provided with completely cut off in the first perforation with the fenestrate water valve that closes of second. This application has the effect of further promoting to get core stability.
Description
Technical Field
The application relates to a geological survey field especially relates to a rock core drilling tool auxiliary device.
Background
The core drill is one kind of core drilling equipment, and is mainly used for general survey and exploration of metal and nonmetal solid minerals, and in addition, can also be used for engineering geological survey, hydrogeological survey, general survey and exploration of oil and gas fields, well drilling and the like.
The core drill is at the during operation, and the motor through high-speed rotation drives the drill bit and rotates to make the drill bit destroy the rock mass and accomodate the rock mass in the drill bit, current core drill, the internal diameter and the aperture of drilling tool are the same, so that coolant liquid circulation uses.
In view of the above-mentioned related technologies, the inventor believes that when the existing core drilling machine performs core extraction, a certain hydraulic pressure exists in the pipe due to the existence of the circulating fluid inside the drilling tool, so that the core is not easy to be extracted due to the upper pressure and is brought out of the drill bit, which affects the core extraction stability and needs to be improved.
Disclosure of Invention
In order to further promote coring stability, this application provides a core drilling tool auxiliary device.
The application provides a rock core drilling tool auxiliary device adopts following technical scheme:
the core drilling tool auxiliary device comprises a cylindrical water-closing joint arranged in a drill bit, wherein a first perforation and a second perforation which are communicated with each other are formed in the water-closing joint, the first perforation and the second perforation are located on the same axis, the inner diameter of the first perforation is larger than that of the second perforation, and a water-closing valve for isolating the first perforation and the second perforation is arranged in the first perforation.
Through adopting above-mentioned technical scheme, when the drill bit carries out down to adopt the work, the coolant liquid can be perforated with the second through the first perforation of intercommunication each other and enter into the drill bit inside to the realization solidifies the cooling of rock core, and then makes the drill bit can play the effect of collecting the rock core. After the rock core is collected, the water closing valve is put into the first perforation, separation between the first perforation and the second perforation is achieved, hydraulic pressure generated by cooling liquid to the inside of the drill bit is reduced, in the process of upward extraction, after the rock core firstly descends for a certain distance, a relatively closed cavity is formed between the rock core and the drilling tool, certain negative pressure is formed in the cavity, the rock core can completely and stably stay in the drill bit, and stability of the whole device is further improved.
Optionally, the water-closing valve is a sphere.
By adopting the technical scheme, when the water closing valve enters the first through hole, the water closing valve is arranged to be spherical, so that the water closing valve can fall into the connecting position of the first through hole and the second through hole completely to realize the mutual separation of the first through hole and the second through hole, and the working efficiency of water closing work is further improved.
Optionally, the upper end of the water closing valve is fixedly connected with a balancing weight.
Through adopting above-mentioned technical scheme, when closing the water valve and entering into in the first perforation, the balancing weight that is located to close water valve top can increase the pressure of closing the water valve to make and close water valve and first fenestrate connected relation inseparabler, thereby reduce the pressure of second perforation department, make the rock mass of treating the sample can be more convenient enter into the drill bit inside, further promoted the drill bit and accomodate the stability when rock core.
Optionally, the counterweight block is in a long strip shape, and an axis of the counterweight block passes through a circle center of the water-closing valve.
Through adopting above-mentioned technical scheme, when will close the water valve and place first perforation in, be cylindric balancing weight and can play certain guide effect to make and close the water valve vertical relatively and stable entering into first perforation, further facilitate for the installation of closing the water valve.
Optionally, chamfers are formed at two ends of the water closing joint.
Through adopting above-mentioned technical scheme, all adopt the chamfer to handle at the both ends that close the water swivel for close the port part passivation of water swivel, reduce the acutance of end part, prevent that the user from being cut by the end part that closes the water swivel when the installation is closed the water swivel, further promoted the security that closes the water swivel.
Optionally, an end of the first perforation facing away from the second perforation is flared.
Through adopting above-mentioned technical scheme, when closing the water valve and entering into first perforation, the bell mouth that is located on first perforation can play certain guide effect to closing the water valve to be convenient for close the water valve and enter into first perforation, further promote the convenience of whole device.
Optionally, a portion of the first through hole close to the second through hole is disposed in a tapered angle and is folded towards the second through hole.
Through adopting above-mentioned technical scheme, when closing the water valve and entering into first perforation bottom, can contradict with the inside toper angle of first perforation, compare in the plane, the toper face can make the separation effect of closing the water valve better, has further promoted the seal of integrated device, and further integrated mechanism is to the extraction ability of rock core simultaneously.
Optionally, an annular groove is provided on the second portion.
Through adopting above-mentioned technical scheme, when the water swivel is closed in the installation, the annular groove that is located on the second perforation can realize closing the water swivel wholly fixed with the quick joint of drill bit, further increases and closes the relation of being connected between water swivel and the drill bit, has further promoted the stability of whole device.
In summary, the present application includes at least one of the following beneficial technical effects:
by arranging the water closing connector and the water closing valve in the water closing connector, when the drill bit extracts the rock core, the water closing valve is put into the water closing connector to realize the water-resisting effect of the water closing valve on the water closing connector, so that a certain negative pressure can be formed in the water closing connector, and the stability of the drill bit during lifting coring is further enhanced;
the two ends of the water closing joint are subjected to chamfering treatment, so that the edge position of the water closing joint is passivated, the sharpness of the water closing joint is reduced, the water closing joint is prevented from damaging personnel, and the safety of the water closing joint is further enhanced;
through set up the balancing weight on closing the water valve to make the balancing weight be located the axle center position department of closing the water valve, make the balancing weight still have the guide effect except that the effect of the gravity that increases to close the water valve concurrently, strengthened the separation effect of closing the water valve with one step.
Drawings
Fig. 1 is a sectional view of a water shut-off fitting according to an embodiment of the present application.
Fig. 2 is a sectional view of a water shutoff valve according to an embodiment of the present application.
Description of reference numerals: 1. a water shut-off fitting; 11. a first perforation; 111. a taper angle; 12. a second perforation; 121. flow guiding chamfering; 13. a first-stage protection chamfer; 14. secondary protection chamfering; 2. closing the water valve; 21. a balancing weight; 3. an annular groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a rock core drilling tool auxiliary device, refers to fig. 1 and 2, and comprises a water closing connector 1 and a water closing valve 2. Close water swivel 1 and install within the drill bit of rock core exploitation, close water swivel 1 and can guarantee that the coolant liquid enters into the drill bit smoothly and do not influence the normal exploitation work of drill bit, and when the drill bit draws sample rock core, drop into in closing water swivel 1 and close water valve 2 and can promote the stability of drill bit when drawing the rock core.
Referring to fig. 1 and 2, the water closing joint 1 is a cylinder, an annular groove 3 convenient for the water closing joint 1 to be clamped and fixed with a drill is formed in the water closing joint 1, and the annular groove 3 is located in the middle of the outer wall of the water closing joint 1. The water-closing joint 1 is internally provided with a first through hole 11 and a second through hole 12 which are communicated with each other, the axial lines of the water-closing joint 1, the first through hole 11 and the second through hole 12 are coincident, the size of the first through hole 11 is larger than that of the second through hole 12, the first through hole 11 and the second through hole 12 respectively penetrate through two ends of the water-closing joint 1, one end, through which the first through hole 11 penetrates, is the upper end of the water-closing joint 1, and one end, through which the second through hole 12 penetrates, is the lower end of the water-closing joint 1.
Referring to fig. 1 and 2, a diversion chamfer 121 is formed at the end of the second through hole 12 far away from the first through hole 11. The upper end of the water closing connector 1 is formed with a first-level protection chamfer 13, the lower end of the water closing connector is formed with a second-level protection chamfer 14, and the size of the second-level protection chamfer 14 is larger than that of the first-level protection chamfer 13. The first perforation 11 is also provided with a water closing valve 2 which can block the first perforation 11 and the second perforation 12. When the core sample needs to be extracted upwards, the water closing valve 2 is put into the first perforation 11, and then the first perforation 11 and the second perforation 12 can be separated.
Referring to fig. 1 and 2, one end of the first through hole 11 away from the second through hole 12 is flared so that the water shutoff valve 2 can smoothly enter the first through hole 11, and a tapered angle 111 converging towards the second through hole 12 is formed at a position where the first through hole 11 is communicated with the second through hole 12 to enhance the blocking effect of the water shutoff valve 2.
Referring to fig. 1 and 2, the water shutoff valve 2 is a sphere having an outer diameter smaller than the inner diameter of the first through hole 11 and larger than the inner diameter of the second through hole 12, and when the water shutoff valve 2 is placed in the first through hole 11, the water shutoff valve falls and is snapped into the tapered angle 111, and an edge portion of the water shutoff valve 2 is attached to the tapered angle 111. The water closing valve 2 is fixedly connected with a balancing weight 21, the balancing weight 21 is a long strip-shaped cylinder, and the length of the balancing weight 21 is larger than that of the first through hole 11.
The implementation principle of the embodiment of the application is as follows: the water closing connector 1 is installed between a drill bit and a rotary machine, the water closing valve 2 is placed in the first through hole 11 in the first portion of the water closing connector 1, the balancing weight 21 on the water closing valve 2 is vertically arranged upwards, the water closing valve 2 moves to the bottom end of the first through hole 11 under the action of the balancing weight 21 and the conical angle 111, and separation between the first through hole 11 and the second through hole 12 is achieved, so that negative pressure is formed at the drill bit portion, a rock core located in the drill bit is further prevented from falling to the outside of the drill bit, and therefore the rock core taking and placing stability of the whole device is further improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a rock core drilling tool auxiliary device which characterized in that: the water-stop joint comprises a cylindrical water-stop joint (1) arranged in a drill bit, wherein a first through hole (11) and a second through hole (12) which are communicated with each other are formed in the water-stop joint (1), the first through hole (11) and the second through hole (12) are located on the same axis, the inner diameter of the first through hole (11) is larger than that of the second through hole (12), and a water-stop valve (2) for isolating the first through hole (11) from the second through hole (12) is arranged in the first through hole (11).
2. The core drilling aid as claimed in claim 1, wherein: the water-closing valve (2) is a spherical body.
3. The core drilling aid as claimed in claim 1, wherein: the upper end of the water closing valve (2) is fixedly connected with a balancing weight (21).
4. A core drilling aid as claimed in claim 3, wherein: the counterweight block (21) is in a long strip shape, and the axis of the counterweight block (21) passes through the circle center of the water closing valve (2).
5. The core drilling aid as claimed in claim 1, wherein: and chamfering both ends of the water closing joint (1).
6. The core drilling aid as claimed in claim 1, wherein: one end of the first perforation (11) departing from the second perforation (12) is arranged in a flaring shape.
7. The core drilling aid as claimed in claim 1, wherein: the part of the first through hole (11) close to the second through hole (12) is arranged in a conical angle (111) and is partially folded towards the second through hole (12).
8. The core drilling aid as claimed in claim 1, wherein: an annular groove (3) is arranged on the water closing joint (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120204809.1U CN214365918U (en) | 2021-01-25 | 2021-01-25 | Rock core drilling tool auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120204809.1U CN214365918U (en) | 2021-01-25 | 2021-01-25 | Rock core drilling tool auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214365918U true CN214365918U (en) | 2021-10-08 |
Family
ID=77959175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120204809.1U Active CN214365918U (en) | 2021-01-25 | 2021-01-25 | Rock core drilling tool auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214365918U (en) |
-
2021
- 2021-01-25 CN CN202120204809.1U patent/CN214365918U/en active Active
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