CN219365964U - Positioning mechanism for gas extraction pipe - Google Patents

Abstract

The utility model belongs to the field of gas extraction, in particular to a gas extraction pipe positioning mechanism, which aims at the problems that the positioning effect of the positioning mechanism of the existing extraction pipe on the extraction pipe is not ideal, the extraction pipe can still continue to move deeply after being inserted into an extraction hole, and the extraction pipe is difficult to be fixed in a designated area, and the sealing performance of the positioning mechanism and the extraction hole is poor; the positioning assembly comprises two positioning rods and two conical rods. The extraction pipe positioning mechanism has good positioning effect on the extraction pipe, the extraction pipe can be fixed in a designated area after being inserted into the extraction hole, and the positioning mechanism and the extraction hole have good sealing performance.

Description

Positioning mechanism for gas extraction pipe

Technical Field

The utility model relates to the technical field of gas extraction, in particular to a gas extraction pipe positioning mechanism.

Background

The most common measure in the coal mine production at present is to perform gas drainage, namely, negative pressure caused by mechanical equipment and a special pipeline is utilized to drain the gas existing or released in the coal seam and convey the gas to the ground or other safe places, the gas drainage of the coal seam is usually performed by firstly drilling a gas drainage drill hole in the coal seam, then inserting a gas drainage pipe in the gas drainage drill hole and sealing the periphery of an orifice of the gas drainage drill hole;

in the prior art, poor sealing effect caused by excessive deviation of the axial position of a gas extraction pipe placed in a gas extraction drill hole from the center of the gas extraction drill hole is one of main reasons for unsatisfactory hole sealing effect, and a gas extraction pipe positioning mechanism is disclosed for the problem with application number 202120539835.X and comprises a sleeve base, a positioning support rod and a support tension spring; the sleeve base is provided with a gas extraction pipe positioning and mounting structure, and is positioned and sleeved on the gas extraction pipe through the gas extraction pipe positioning and mounting structure; the positioning support rods are uniformly distributed along the circumferential direction of the sleeve base to form positioning support rod groups, the bottom ends of the positioning support rods are hinged to the outer wall of the sleeve base, and the positioning support rods can swing along the front-back direction;

however, the existing positioning mechanism of the extraction pipe has a poor positioning effect on the extraction pipe, and the extraction pipe still can continue to move deeply after being inserted into the extraction hole, so that the extraction pipe is difficult to fix in a designated area, and the sealing performance between the positioning mechanism and the extraction hole is poor.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a gas extraction pipe positioning mechanism.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the gas extraction pipe positioning mechanism comprises a collecting pipe, a positioning sleeve and a plurality of positioning components, wherein the positioning sleeve is fixedly sleeved in the collecting pipe, the plurality of positioning components are arranged on the positioning sleeve, a sealing air bag is fixedly sleeved on the positioning sleeve, and one side of the sealing air bag is fixedly connected with an inflating nozzle;

the positioning assembly comprises two positioning rods and two conical rods;

two mounting grooves are formed in the positioning sleeve, positioning rods are rotatably mounted in the two mounting grooves, and conical rods are fixedly mounted at one ends of the two positioning rods.

Specifically, worm wheels are fixedly installed on one sides of two positioning rods, a fixing cavity is formed in the positioning sleeve, two through holes are formed in the inner wall of one side of the fixing cavity, control round rods are rotatably installed in the two through holes, worm shafts are fixedly installed at one ends of the control round rods, and the worm shafts are meshed with the corresponding worm wheels.

Specifically, the other end of two control round bars is all fixed mounting has the rotation gear, sliding mounting has two flexible racks in the fixed chamber, rotation gear and the flexible rack meshing that corresponds, threaded hole has all been seted up to the one end of two flexible racks, two lead screws are installed to the fixed intracavity internal rotation, lead screw threaded mounting is at the threaded hole that corresponds.

Specifically, one end of each screw rod is fixedly provided with a connecting wheel, the two connecting wheels are meshed, one end of one screw rod of each screw rod is fixedly provided with a control gear, and the control gears are rotatably arranged on one side of the positioning sleeve.

Specifically, the collecting pipe is rotatably sleeved with a control ring plate, the control ring plate is fixedly sleeved with an annular rack, and the annular rack is meshed with the control gear.

Specifically, the inner wall of mounting groove has seted up the rotary groove, and fixed mounting has the rotor on the locating lever, and the rotor rotates to be connected in the rotary groove.

Specifically, two sliding grooves are formed in the inner wall of the fixed cavity, sliding blocks are fixedly arranged on one sides of the two telescopic racks, and the sliding blocks are slidably arranged in the corresponding sliding grooves.

Specifically, a connecting hole is formed in the inner wall of one side of the fixing cavity, and the screw rod is rotatably arranged in the connecting hole.

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

(1) According to the gas extraction pipe positioning mechanism, the control annular plate drives the annular rack to move, the connecting wheel drives the other connecting wheel and the screw rod to rotate, the telescopic rack drives the corresponding rotating gear to rotate, the two positioning rods are simultaneously unfolded, the plurality of conical rods are contacted with the inner wall of the extraction hole, and the position of the extraction pipe can be stabilized.

(2) After the gas extraction pipe positioning mechanism is inflated into the sealing air bag, the sealing air bag can be contacted with the extraction hole, and the positioning sleeve can be in sealing connection with the extraction hole.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be understood that the drawings described below are merely exemplary, and that the structures, proportions, sizes, etc. shown in the present specification are merely illustrative of the contents of the present specification, for the understanding and appreciation of the skilled artisan, and are not meant to limit the limitations upon the practice of the present utility model, so that there is no technical significance to any modification, change in the proportions, or adjustment of the size of the structures.

FIG. 1 is a schematic perspective view of a positioning mechanism for a gas extraction pipe according to the present utility model;

FIG. 2 is a schematic top view of a positioning mechanism for a gas extraction pipe according to the present utility model;

FIG. 3 is a schematic diagram of a front view of a positioning mechanism for a gas extraction pipe according to the present utility model;

fig. 4 is an enlarged view at a in fig. 2.

In the figure: 1. a collection tube; 2. a positioning sleeve; 3. a positioning rod; 4. a taper rod; 5. a worm wheel; 6. a fixed cavity; 7. controlling the round rod; 8. a worm; 9. rotating the gear; 10. a telescopic rack; 11. a screw rod; 12. a fifth wheel; 13. a control gear; 14. a control loop plate; 15. an annular rack; 16. sealing the air bag.

Detailed Description

Hereinafter, embodiments of the present utility model will be described with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. It may be evident, however, that one or more embodiments may be practiced without these specific details. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The terms "comprises," "comprising," and/or the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.

Referring to fig. 1-4, a gas extraction pipe positioning mechanism comprises a collection pipe 1 and a positioning sleeve 2, wherein the positioning sleeve 2 is fixedly sleeved in the collection pipe 1, a sealing air bag 16 is fixedly sleeved on the positioning sleeve 2, one side of the sealing air bag 16 is fixedly connected with an inflating nozzle, two mounting grooves are formed in the positioning sleeve 2, two positioning rods 3 are rotatably mounted in the mounting grooves, one ends of the positioning rods 3 are fixedly mounted with conical rods 4, worm gears 5 are fixedly mounted on one sides of the two positioning rods 3, a fixing cavity 6 is formed in the positioning sleeve 2, two through holes are formed in the inner wall of one side of the fixing cavity 6, a control circular rod 7 is rotatably mounted in the two through holes, one ends of the control circular rod 7 are fixedly mounted with worms 8, the worms 8 are meshed with corresponding control circular rods 7, rotating gears 9 are fixedly mounted at the other ends of the two control circular rods, two telescopic racks 10 are slidably mounted in the fixing cavity 6, two worm gears 9 are fixedly mounted with conical rods 4 at one ends of the corresponding worm gears 10, two telescopic racks 11 are fixedly mounted in the two annular racks 11, one end of the screw rods 11 are fixedly mounted in the corresponding control circular rods 11, one end of the screw rods 11 is fixedly mounted in the screw rod 11, one end of the screw rod is fixedly mounted in the screw rod 11, and is fixedly mounted in the screw rod 11, one end of the screw rod is fixedly mounted in the screw rod 11, and is fixedly meshed with one end of the screw rod 11.

In this embodiment, the inner wall of the installation groove is provided with a rotation groove, the positioning rod 3 is fixedly provided with a rotation block, and the rotation block is rotationally connected in the rotation groove.

In this embodiment, two sliding grooves are formed in the inner wall of the fixed cavity 6, and sliding blocks are fixedly mounted on one sides of the two telescopic racks 10 and slidably mounted in the corresponding sliding grooves.

In this embodiment, a connecting hole is formed in an inner wall of one side of the fixing cavity 6, and the screw rod 11 is rotatably installed in the connecting hole.

In this embodiment, the collecting tube 1 and the positioning sleeve 2 are placed into the extraction hole, the control ring plate 14 is rotated, the control ring plate 14 drives the annular rack 15 to move, the annular rack 15 drives the control gear 13 to rotate, the control gear 13 drives the screw rod 11 to rotate, the screw rod 11 drives the connecting wheel 12 to rotate, the connecting wheel 12 drives the other connecting wheel 12 and the screw rod 11 to rotate, the screw rod 11 drives the corresponding telescopic rack 10 to move, the telescopic rack 10 drives the corresponding rotating gear 9 to rotate, the rotating gear 9 drives the corresponding control round rod 7 to rotate, the control round rod 7 drives the corresponding worm 8 to rotate, the worm 8 drives the corresponding worm wheel 5 to rotate, the worm wheel 5 controls the corresponding positioning rods 3 to rotate, the two positioning rods 3 are simultaneously unfolded, the positioning rods 3 drive the corresponding conical rods 4 to rotate, the conical rods 4 are in contact with the inner wall of the extraction hole, the positions of the collecting tube 1 can be stabilized, and after the sealing air bag 16 is inflated, the sealing air bag 16 can be in contact with the extraction hole and the positioning sleeve 2 can be ensured to be in sealing connection with the extraction hole.

Compared with the prior art, the utility model has the technical advantages that: the extraction pipe positioning mechanism has good positioning effect on the extraction pipe, the extraction pipe can be fixed in a designated area after being inserted into the extraction hole, and the positioning mechanism and the extraction hole have good sealing performance.

Claims (8)

1. The utility model provides a gas drainage pipe positioning mechanism, includes collection pipe (1), locating sleeve (2) and a plurality of locating component, its characterized in that:

the positioning sleeve (2) is fixedly sleeved in the collecting tube (1), a plurality of positioning assemblies are arranged on the positioning sleeve (2), a sealing air bag (16) is fixedly sleeved on the positioning sleeve (2), and one side of the sealing air bag (16) is fixedly connected with an inflating nozzle;

the positioning assembly comprises two positioning rods (3) and two conical rods (4);

two mounting grooves are formed in the positioning sleeve (2), positioning rods (3) are rotatably mounted in the two mounting grooves, and conical rods (4) are fixedly mounted at one ends of the two positioning rods (3).

2. The gas extraction pipe positioning mechanism according to claim 1, wherein one side of each of the two positioning rods (3) is fixedly provided with a worm wheel (5), the positioning sleeve (2) is provided with a fixing cavity (6), one side inner wall of the fixing cavity (6) is provided with two through holes, the two through holes are internally and rotatably provided with control round rods (7), one ends of the two control round rods (7) are fixedly provided with worm screws (8), and the worm screws (8) are meshed with the corresponding worm wheels (5).

3. The gas extraction pipe positioning mechanism according to claim 2, wherein the other ends of the two control round rods (7) are fixedly provided with rotating gears (9), two telescopic racks (10) are slidably installed in the fixed cavity (6), the rotating gears (9) are meshed with the corresponding telescopic racks (10), one ends of the two telescopic racks (10) are provided with threaded holes, the two screw rods (11) are rotatably installed in the fixed cavity (6), and the screw rods (11) are installed in the corresponding threaded holes in a threaded mode.

4. A gas extraction pipe positioning mechanism according to claim 3, characterized in that one end of each of the two screw rods (11) is fixedly provided with a connecting wheel (12), the two connecting wheels (12) are meshed, one end of one screw rod (11) of the two screw rods (11) is fixedly provided with a control gear (13), and the control gear (13) is rotatably arranged on one side of the positioning sleeve (2).

5. The gas extraction pipe positioning mechanism according to claim 4, wherein a control annular plate (14) is rotatably sleeved on the collection pipe (1), an annular rack (15) is fixedly sleeved on the control annular plate (14), and the annular rack (15) is meshed with the control gear (13).

6. The gas extraction pipe positioning mechanism according to claim 1, wherein a rotating groove is formed in the inner wall of the mounting groove, a rotating block is fixedly mounted on the positioning rod (3), and the rotating block is rotatably connected in the rotating groove.

7. A gas extraction pipe positioning mechanism according to claim 3, characterized in that the inner wall of the fixed cavity (6) is provided with two sliding grooves, one side of each of the two telescopic racks (10) is fixedly provided with a sliding block, and the sliding blocks are slidably arranged in the corresponding sliding grooves.

8. A gas extraction pipe positioning mechanism according to claim 3, wherein a connecting hole is formed in the inner wall of one side of the fixing cavity (6), and the screw rod (11) is rotatably installed in the connecting hole.