CN216008446U

CN216008446U - Orifice sealing device for geological drilling equipment

Info

Publication number: CN216008446U
Application number: CN202121915026.0U
Authority: CN
Inventors: 吴连朋; 唐安辉; 张德柱
Original assignee: Liaoning Metallurgical Geology Team 404 Co ltd
Current assignee: Liaoning Metallurgical Geology Team 404 Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-11
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses an orifice sealing device for geological drilling equipment, which comprises a barrel, wherein a pedestal is fixedly arranged at the top of the barrel, a drill rod is rotatably arranged at the center of an inner cavity of the barrel, a first sealing sleeve is fixedly arranged in the inner cavity at the bottom of the barrel, pipelines are arranged on two sides of the drill rod, and a second sealing sleeve is fixedly arranged at the bottom of the inner cavity of the barrel. According to the utility model, through the arrangement of the first sealing sleeve, the inner wall of the first sealing sleeve is attached to the surface of the drill rod, the air bag can be inflated through the arrangement of the inflation tube, and when the drill rods with different sizes are placed, the air bag can be attached to the surface of the drill rod, a better sealing effect is achieved, no gap is generated, the sealing device is suitable for the drill rods with various sizes, the application range is wide, and meanwhile, the problems that the existing sealing device can only be generally suitable for the drill rods with the same diameter, cannot be adjusted according to the diameter change of the drill rod and is limited in use are solved.

Description

Orifice sealing device for geological drilling equipment

Technical Field

The utility model relates to the technical field of geological drilling, in particular to an orifice sealing device for geological drilling equipment.

Background

At present in the drilling work progress, the annular gap between drilling rod and the drilling is great, the rock powder that produces among the drilling process can directly blow to the atmosphere through the annular gap, perhaps because of downthehole backpressure is great, with downthehole water, impurity etc. spout outside the hole by the annular gap, some directly get into in the atmosphere, some directly spout on the rig, cause the rig to pollute, bring inconvenience for well head operating personnel work, reduce the efficiency of construction, increase cost, the dust of discharging in the atmosphere can directly produce serious pollution to the surrounding environment, current sealing device, can only be applicable to the drilling rod of same diameter usually, can't adjust according to the drilling rod diameter change, it is restricted to use, when the diameter of drilling rod changes, the phenomenon that the clearance can appear between sealing member and the drilling rod enlarges, lead to sealed inefficacy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an orifice sealing device for geological drilling equipment, which has the advantages of good sealing effect, no influence of the diameter change of a drill rod on the sealing effect and wide application range, and solves the problems that the existing sealing device can only be applied to the drill rod with the same diameter generally, cannot be adjusted according to the diameter change of the drill rod and is limited in use.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a drill way sealing device for geological drilling equipment, includes the barrel, the top fixed mounting of barrel has the pedestal, the center department of barrel inner chamber rotates installs the drilling rod, the inner chamber fixed mounting of barrel bottom has first seal cover, the both sides of drilling rod all are provided with the pipeline, the bottom fixed mounting of barrel inner chamber has the second seal cover, the inner wall fixed mounting of second seal cover has the ring of aerifing, the inboard fixed mounting of ring of aerifing has the gasbag, the inner chamber fixed mounting of pipeline has last feed cylinder.

Preferably, the fixed cover in surface of barrel is equipped with the flight, the left side fixed mounting of pedestal inner chamber has the blast pipe.

Preferably, the inner wall of the first seal sleeve is attached to the surface of the drill rod, and guide heads are fixedly mounted on the periphery of the bottom of the cylinder body.

Preferably, a drill bit is fixedly mounted at the bottom of the drill rod and is located on the inner wall of the guide head.

Preferably, the top of the pipeline is fixedly provided with a three-way pipe, and the front of the three-way pipe is fixedly provided with an electromagnetic valve.

Preferably, a filter residue net is fixedly mounted on the inner wall of the second sealing sleeve and the outer wall of the inflation tube, and the inner side of the air bag is attached to the outer side of the drill rod.

Preferably, the front surface of the first sealing sleeve is fixedly provided with a connector head, and the connector head extends from the inner cavity of the cylinder body to the bottom of the pedestal.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the first sealing sleeve, the inner wall of the first sealing sleeve is attached to the surface of the drill rod, the air bag can be inflated through the arrangement of the inflation tube, and when the drill rods with different sizes are placed, the air bag can be attached to the surface of the drill rod, a better sealing effect is achieved, no gap is generated, the sealing device is suitable for the drill rods with various sizes, the application range is wide, and meanwhile, the problems that the existing sealing device can only be generally suitable for the drill rods with the same diameter, cannot be adjusted according to the diameter change of the drill rod and is limited in use are solved.

2. According to the utility model, through the arrangement of the exhaust pipe, gas generated in the cylinder body can be exhausted, and through the arrangement of the filter residue net, overlarge impurities can be prevented from entering the inner cavity of the cylinder body when the ground is drilled, and residual residues can be exhausted through the charging barrel.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second seal cartridge in an embodiment of the utility model;

fig. 3 is a schematic structural diagram of a pipe in an embodiment of the present invention.

In the figure: 1. a barrel; 2. an inflation tube; 3. a pipeline; 4. a drill stem; 5. a three-way pipe; 6. an electromagnetic valve; 7. an exhaust pipe; 8. a pedestal; 9. a spiral sheet; 10. connecting the pipe heads; 11. a guide head; 12. a drill bit; 13. a first seal cartridge; 14. a second seal cartridge; 15. an air bag; 16. an air-filled ring; 17. filtering a residue net; 18. and (5) feeding the material barrel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, an orifice sealing device for geological drilling equipment comprises a cylinder 1, a pedestal 8 is fixedly installed at the top of the cylinder 1, a drill rod 4 is rotatably installed at the center of an inner cavity of the cylinder 1, a first sealing sleeve 13 is fixedly installed in the inner cavity of the bottom of the cylinder 1, the inner wall of the first sealing sleeve 13 is attached to the surface of the drill rod 4, guide heads 11 are fixedly installed around the bottom of the cylinder 1, pipelines 3 are arranged on both sides of the drill rod 4, a second sealing sleeve 14 is fixedly installed at the bottom of the inner cavity of the cylinder 1, an inflation ring 16 is fixedly installed on the inner wall of the second sealing sleeve 14, an air bag 15 is fixedly installed on the inner side of the inflation ring 16, an upper charging barrel 18 is fixedly installed in the inner cavity of the pipeline 3, a spiral sheet 9 is fixedly installed on the surface of the cylinder 1, an exhaust pipe 7 is fixedly installed on the left side of the inner cavity of the pedestal 8, and a drill bit 12 is fixedly installed at the bottom of the drill rod 4, the drill bit 12 is positioned on the inner wall of the guide head 11, the top of the pipeline 3 is fixedly provided with the three-way pipe 5, the front surface of the three-way pipe 5 is fixedly provided with the electromagnetic valve 6, the inner wall of the second sealing sleeve 14 and the outer wall of the inflating ring 16 are fixedly provided with the filter residue net 17, the inner side of the air bag 15 is attached to the outer side of the drill rod 4, the front surface of the first sealing sleeve 13 is fixedly provided with the connector head 10, the front surface of the connector head 10 is fixedly connected with the inflating pipe 2, the inflating pipe 2 extends from the inner cavity of the barrel body 1 to the bottom of the pedestal 8, the gas generated in the barrel body 1 can be discharged through the arrangement of the exhaust pipe 7, the excessive impurities can be prevented from entering the inner cavity of the barrel body 1 through the arrangement of the filter residue net 17, the residual residues can be discharged through the charging barrel 18, and through the arrangement of the first sealing sleeve 13, the inner wall of the first sealing sleeve 13 is attached to the surface of the drill rod 4, and through the setting of gas tube 2, can aerify gasbag 15, and when placing not unidimensional drilling rod 4, gasbag 15 all can laminate mutually with the surface of drilling rod 4, and has played better sealed effect, and the gap can not appear, and is applicable to the drilling rod 4 of various sizes, and application range is wide, has solved current sealing device simultaneously, can only be applicable to the drilling rod of same diameter usually, can't adjust according to the drilling rod diameter change, uses limited problem.

All the components in the utility model are universal standard components or components known by those skilled in the art, the structure and principle of the components can be known by technical manuals or conventional experimental methods, meanwhile, the standard components used in the application document can be purchased from the market, the components in the application document can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each component adopts the conventional means of mature bolts, rivets, welding and the like in the prior art, the machinery, the components and equipment adopt the conventional models in the prior art, the control mode is automatically controlled through a controller, the control circuit of the controller can be realized through simple programming of those skilled in the art, the components belong to the common knowledge in the art, and the application document is mainly used for protecting mechanical devices, so the detailed explanation of the control mode and circuit connection is omitted, no specific description will be made herein.

During the use, the inner wall of first seal cover 13 is laminated with the surface of drilling rod 4 mutually, and the setting through gas tube 2, can aerify gasbag 15, and when placing not unidimensional drilling rod 4, gasbag 15 all can laminate with the surface of drilling rod 4 mutually, and played better sealed effect, and the gap can not appear, and be applicable to the drilling rod 4 of various sizes, blast pipe 7 can discharge the gas that produces in the barrel 1, and too big impurity enters into barrel 1 inner chamber when can preventing to bore ground through setting up of filter residue net 17, and remaining residue can discharge through last feed cylinder 18.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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

1. An orifice sealing device for geological drilling equipment, comprising a cylinder (1), characterized in that: the top fixed mounting of barrel (1) has pedestal (8), the center department of barrel (1) inner chamber rotates installs drilling rod (4), the inner chamber fixed mounting of barrel (1) bottom has first seal cover (13), the both sides of drilling rod (4) all are provided with pipeline (3), the bottom fixed mounting of barrel (1) inner chamber has second seal cover (14), the inner wall fixed mounting of second seal cover (14) has inflating ring (16), the inboard fixed mounting of inflating ring (16) has gasbag (15), the inner chamber fixed mounting of pipeline (3) has last feed cylinder (18).

2. An aperture sealing device for geological drilling equipment according to claim 1, characterized in that: the fixed surface cover of barrel (1) is equipped with flight (9), the left side fixed mounting of pedestal (8) inner chamber has blast pipe (7).

3. An aperture sealing device for geological drilling equipment according to claim 1, characterized in that: the inner wall of the first sealing sleeve (13) is attached to the surface of the drill rod (4), and guide heads (11) are fixedly mounted on the periphery of the bottom of the barrel body (1).

4. An orifice sealing device for geological drilling equipment according to claim 3, characterized in that: the drill bit (12) is fixedly installed at the bottom of the drill rod (4), and the drill bit (12) is located on the inner wall of the guide head (11).

5. An aperture sealing device for geological drilling equipment according to claim 1, characterized in that: the top of the pipeline (3) is fixedly provided with a three-way pipe (5), and the front surface of the three-way pipe (5) is fixedly provided with an electromagnetic valve (6).

6. An aperture sealing device for geological drilling equipment according to claim 1, characterized in that: the inner wall of the second sealing sleeve (14) and the outer wall of the inflating ring (16) are fixedly provided with a filter residue net (17), and the inner side of the air bag (15) is attached to the outer side of the drill rod (4).

7. An aperture sealing device for geological drilling equipment according to claim 1, characterized in that: the front fixed mounting of first seal cover (13) has connection tube head (10), the front fixedly connected with gas tube (2) of connection tube head (10), and gas tube (2) extend the inner chamber of barrel (1) until the bottom of pedestal (8).