CN220748171U - Mining drill rod with drill falling prevention function - Google Patents

Abstract

The utility model relates to the technical field of mining drill pipes, in particular to a mining drill pipe with a drill falling prevention function, which comprises a drill connecting end, wherein a male tooth is fixedly arranged at one end of the drill connecting end, a second screw tooth is fixedly arranged on the outer wall of the male tooth, a limit slot is arranged at one end of the inner wall of the male tooth, a female tooth is arranged behind the male tooth, one end of the female tooth is fixedly connected with the drill connecting end, an outer falling prevention ring is arranged at the joint of the drill connecting end and the drill connecting end, and a limit slot is further arranged at the joint of the drill connecting end, the drill connecting end and the outer falling prevention ring. According to the utility model, the drill rod can effectively perform drilling work through the interconnection of the screw teeth II arranged on the outer wall of the male teeth of the drill bit connecting end and the screw teeth II arranged on the female teeth of the drill rod connecting end, the limit slot can effectively and tightly attach the female teeth and the male teeth, and the outer ring for preventing falling is also arranged outside the joint of the drill bit connecting end and the drill rod connecting end.

Description

Mining drill rod with drill falling prevention function

Technical Field

The utility model relates to the technical field of mining drill rods, in particular to a mining drill rod with a drill falling prevention function.

Background

The drill rod is a steel pipe with threads at the tail part and is used for connecting surface equipment of a drilling machine and drilling and grinding equipment or a bottom hole device at the bottom end of a drilling well. The purpose of the drill pipe is to carry drilling mud to the drill bit and to raise, lower or rotate the bottom hole assembly with the drill bit. The drill pipe must be able to withstand significant internal and external pressure, twisting, bending and vibration. The drill pipe can be used for multiple times in the exploitation and refining process of oil gas.

The mining drill rod with the drill falling prevention function comprises a rod body, drill bit connecting ends and drill rod connecting ends which are respectively arranged at two ends of the rod body, a falling prevention connecting rod arranged in the drill bit connecting ends and a locking mechanism arranged in the drill rod connecting ends, wherein the drill rod is provided with a drill falling prevention hole; when the drilling construction is connected with a drill rod, the anti-falling connecting rod enters an inner hole of a fixed ring of the locking mechanism, when the drill bit connecting end is screwed into the drill rod connecting end to a certain depth, the small end face of the drill bit connecting end contacts with a variable-section pin of the locking mechanism, and then the variable-section pin is pressed to move along the axis of the drill rod, a spring of the locking mechanism is compressed, and a bayonet lock of the locking mechanism is pressed to radially move; when the bit connecting end shoulder contacts with the drill rod connecting end shoulder, the variable section pin presses the bayonet lock to enter the clamping groove of the anti-drop connecting rod, and the drill rod feeding operation is completed. The utility model realizes the axial connection between the anti-drop connecting rod and the locking mechanism after the thread of the connecting end of the drill bit is broken, can extract the broken part by a deep drill rod, effectively solves the problem of drop drilling after the existing drill rod is broken, and ensures the safety of drilling construction.

The prior art scheme has the following technical defects when in use: the common drill rod fracture is mostly the junction fracture to lead to the drill bit to drop, gets into locking mechanism's solid fixed ring hole through preventing falling the connecting rod, thereby prevents falling to bore, but this kind of device is after the drill rod fracture, and cracked front and back both ends are still connected together, and is inconvenient to protect the drill rod of fracture rear end department, and for this reason, we provide a mining drill rod with prevent falling to bore function.

Disclosure of Invention

The utility model aims to provide a device which is characterized in that the breaking part of a common drill rod is mostly a broken joint, so that a drill bit falls off and enters an inner hole of a fixed ring of a locking mechanism through a falling-preventing connecting rod, but after the drill rod is broken, the front end and the rear end of the broken part are connected together, so that the drill rod at the rear end of the broken part is inconvenient to protect, and the problems in the prior art are solved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a mining drilling rod with prevent boring function, includes the drill bit link, the one end fixed mounting of drill bit link has public tooth, the screw tooth second has been seted up to the outer wall fixed of public tooth, spacing slot has been seted up to public tooth inner wall one end, female tooth is installed at the rear of public tooth, the one end fixedly connected with drilling rod link of female tooth, the junction of drill bit link and drilling rod link is installed and is prevented falling the outer loop, the junction of drill bit link, drilling rod link and preventing falling the outer loop still is provided with the spacing groove, anti-falling spout has been seted up to the below of spacing groove, the spacing groove is located the below of preventing falling the outer loop.

As still further aspects of the utility model: the male teeth are tightly attached to the female teeth, and the male teeth are movably connected with the female teeth.

As still further aspects of the utility model: the drill bit connecting end, the drill rod connecting end and the anti-drop outer ring are movably connected.

As still further aspects of the utility model: and a limiting hole is formed in the outer wall surface of the anti-drop outer ring.

As still further aspects of the utility model: the inner wall of the limiting hole is provided with an anti-falling block, and the outer wall above the anti-falling block is provided with an elastic groove.

As still further aspects of the utility model: the first screw teeth are arranged on the outer wall of the lower part of the anti-falling block, and the anti-falling block is fixedly connected with the first screw teeth.

The above description shows that, by the above technical solution of the present application, the technical problem to be solved by the present application can be necessarily solved.

Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:

according to the utility model, the drill rod can effectively perform drilling work through the two-phase interconnection of the screw teeth arranged on the outer wall of the male teeth of the drill bit connecting end and the screw teeth arranged on the female teeth of the drill rod connecting end, the female teeth and the male teeth can be effectively tightly attached to each other through the limiting slot, the anti-falling outer ring is further arranged outside the connecting position of the drill bit connecting end and the drill rod connecting end, the anti-falling outer ring can effectively protect the connecting position of the drill bit connecting end and the drill rod connecting end, the anti-falling outer ring is mutually matched with the screw teeth through the limiting hole, the anti-falling block and the screw teeth, the bottom end of the anti-falling block can perform sliding effect in the anti-falling sliding groove, the drill bit connecting end and the drill rod connecting end can be effectively prevented from being separated after being broken, the drill bit is prevented from taking longer time to salvage, the elastic groove can perform the anti-falling block elasticity in the limiting hole through the screw teeth, and the installation and the detachment of the anti-falling outer ring can be facilitated.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the present utility model after connection;

FIG. 3 is a schematic view of the internal structure of the present utility model;

FIG. 4 is a schematic view of the structure of the present utility model after separation;

fig. 5 is an enlarged partial schematic view of fig. 3 a according to the present utility model.

In the figure: 1. a drill bit connecting end; 2. a drill rod connecting end; 3. an anti-drop outer ring; 4. a first screw thread; 5. anti-falling blocks; 6. an elastic groove; 7. a male tooth; 8. a female tooth; 9. a second screw thread; 10. a limiting hole; 11. a limit groove; 12. an anti-falling chute; 13. and a limiting slot.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Description of the preferred embodiments

As shown in fig. 1, 2 and 3, the present utility model provides a technical solution: the utility model provides a mining drilling rod with prevent boring function, including drill bit link 1, the one end fixed mounting of drill bit link 1 has public tooth 7, the outer wall fixed mounting of public tooth 7 has thread two 9, can interconnect through the public tooth 7 of link 1 and the thread two 9 on the female tooth 8 of drill rod link 2, can let the drilling rod effectually carry out drilling work through public tooth 7 and thread two 9 tight connection, spacing slot 13 has been seted up to public tooth 7 inner wall one end, female tooth 8 is installed at the rear of public tooth 7, the one end of female tooth 8 is connected with drill rod link 2, the junction of drill bit link 1 and drill rod link 2 is installed and is prevented falling outer loop 3, public tooth 7 closely laminates with female tooth 8, and be swing joint between public tooth 7 and the female tooth 8, and spacing slot 13 can let female tooth 8 and public tooth 7 closely laminate effectively, drill bit link 1, drill rod link 2 and the junction of preventing falling outer loop 3 still is provided with spacing groove 11, the below of spacing groove 11 has been seted up and has been prevented falling chute 12, spacing groove 11 is located the below of preventing falling outer loop 3.

Examples

The scheme in the first embodiment is further described below in conjunction with a specific working manner, and the details are described below:

as shown in fig. 2, fig. 4 and fig. 5, as a preferred embodiment, further, on the basis of the above-mentioned mode, the movable connection is between the drill bit link 1 and the drill rod link 2 and the anti-drop outer ring 3, and the anti-drop outer ring 3 can effectually carry out the protection of drill bit link 1 and drill rod link 2 junction, spacing hole 10 has been seted up to the outer wall surface of anti-drop outer ring 3, anti-drop outer ring 3 passes through spacing hole 10, prevent between piece 5 and the first 4 screw thread, can let the bottom of piece 5 slide in anti-drop spout 12, can avoid the separation after the fracture of drill bit link 1 and drill rod link 2, avoid salvaging the drill bit and take longer time, prevent that the piece 5 is prevented to drop by installing to the inner wall of spacing hole 10, the elasticity groove 6 has been seted up to the top outer wall of piece 5, the elasticity groove 6 can make anti-drop piece 5 in spacing hole 10, can conveniently prevent outer ring 3 to install and dismantle, the below outer wall of piece 5 has seted up screw thread one 4, and prevent between piece 5 and the first screw thread 4 is fixed connection.

The utility model aims at the technical problems that: the common broken part of the drill rod is mostly broken at the connecting part, so that the drill bit falls off, the drill bit is prevented from falling through the falling-preventing connecting rod entering the inner hole of the fixed ring of the locking mechanism, but after the drill rod is broken, the front end and the rear end of the broken part of the device are connected together, so that the drill rod at the rear end of the broken part is not convenient to protect; the technical scheme of each embodiment is adopted. Meanwhile, the implementation process of the technical scheme is as follows:

working principle:

through the thread two 9 that the public tooth 7 outer wall of drill bit link 1 set up, can with the female tooth 8 on the drill rod link 2 thread two 9 interconnect, can let the drilling work of drill rod effectual, and the junction outside of drill bit link 1 and drill rod link 2 still installs and prevent falling outer ring 3, prevent falling outer ring 3 can effectually protect drill bit link 1 and drill rod link 2 junction, make drill bit link 1 and drill rod link 2 carry out drilling work, after the junction fracture of drill bit link 1 and drill rod link 2, prevent falling outer ring 3 through preventing falling piece 5 and thread one 4 in spacing hole 10 mutually support, can let prevent falling piece 5 and prevent sliding in falling spout 12, and effectively avoid drill bit link 1 and drill rod link 2 fracture after separation, avoid salvaging the drill bit spending, elastic groove 6 can prevent falling piece 5 in spacing hole 10 through thread one 4 can make things convenient for preventing falling outer ring 3's installation and dismantlement, spacing groove 11 can make the effective joint 13 of drill bit link 1 and drill rod link 2 and the tight joint 3, can make the well joint of leading to carry out with the female tooth 3 in spacing hole 3, prevent falling piece 3 can effectively prevent falling joint 13.

Although embodiments of the present utility model have been shown 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 principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The mining drill rod with the drill falling prevention function comprises a drill bit connecting end (1), and is characterized in that one end of the drill bit connecting end (1) is fixedly provided with a male tooth (7), the outer wall of the male tooth (7) is fixedly provided with a second screw tooth (9), one end of the inner wall of the male tooth (7) is provided with a limiting slot (13), the rear of the male tooth (7) is provided with a female tooth (8), and one end of the female tooth (8) is fixedly connected with a drill rod connecting end (2);

the anti-drop outer ring (3) is installed at the junction of drill bit link (1) and drilling rod link (2), drill bit link (1), drilling rod link (2) still are provided with spacing groove (11) with the junction of anti-drop outer ring (3), anti-drop spout (12) have been seted up to the below of spacing groove (11), spacing groove (11) are located the below of anti-drop outer ring (3).

2. The mining drill rod with the drill falling prevention function according to claim 1, wherein the male teeth (7) are tightly attached to the female teeth (8), and the male teeth (7) are movably connected with the female teeth (8).

3. The mining drill rod with the drill-down prevention function according to claim 1, wherein the drill bit connecting end (1) is movably connected with the drill rod connecting end (2) and the drill-down prevention outer ring (3).

4. A mining drill rod with anti-drop function according to claim 3, characterized in that the outer wall surface of the anti-drop outer ring (3) is provided with a limiting hole (10).

5. The mining drill rod with the drill falling prevention function according to claim 4, wherein an anti-falling block (5) is installed on the inner wall of the limiting hole (10), and an elastic groove (6) is formed in the outer wall above the anti-falling block (5).

6. The mining drill rod with the drill falling prevention function according to claim 5, wherein the first screw tooth (4) is arranged on the outer wall below the drill falling prevention block (5), and the drill falling prevention block (5) is fixedly connected with the first screw tooth (4).