CN209841475U - Novel sampler that coal seam gas detected - Google Patents

Abstract

The utility model discloses a novel sampler of coal seam gas detection, including the drilling rod, there is the drill bit on the drilling rod, there is the admission line on the drilling rod terminal surface, admission line communicates with each other with the camera obscura, the camera obscura communicates with each other with the sample chamber, there is the rubber column in the sample intracavity, there is the connecting rod on the rubber column side, there is the pull rod on the another side, the one end of connecting rod has the slide, the one end that the rubber buffer was kept away from to the pull rod runs through the sample chamber and extends to the inside in groove of stepping down, the groove of stepping down all establishes the inside at the drilling rod, this device keeps encapsulated situation at the tunnelling in-process always, reduce impurity entering, gaseous inside from drilling when can preventing to take a sample is revealed, also can prevent that impurity from getting into the inside in sample chamber.

Description

Novel sampler that coal seam gas detected

Technical Field

The utility model relates to a technical field is surveyed in the coal seam, specifically is a novel sampler that coal seam gas detected.

Background

Before coal mining, the gas content in the coal seam needs to be detected, otherwise, the coal mining causes various hazards, for example, when the gas concentration is higher, the oxygen content in the corresponding air is reduced, so that the workers can suffocate, or poisoning, and explosion may occur when the gas concentration reaches a certain value and exposed fire or spark is applied, therefore, the gas content in the coal seam needs to be detected before coal mining, most of the existing detection schemes are sampling detection, however, the sampling method is to drill the hole first and then sample, which is easy to cause gas leakage from the drilled hole, and current sampling equipment makes impurity get into in the sampling tube easily in the sample, and inconvenient after the sample is accomplished simultaneously seals sampling equipment, for solving above-mentioned problem the utility model provides a novel sampler of coal seam gas detection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel sampler of coal seam gas detection to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel sampler of coal seam gas detection, includes the drilling rod, be equipped with the drill bit on the terminal surface of drilling rod, and it has the admission line to open on the drilling rod is close to a terminal surface of drill bit, the admission line is located the inside one end of drilling rod and communicates with each other at the inside camera obscura of drilling rod, the one end cell wall of camera obscura communicates with each other with the sample chamber, the inside sliding connection in sample chamber has the rubber column, fixedly connected with connecting rod on the side of rubber column is connected with the pull rod on the another side, the one end that the rubber column was kept away from to the connecting rod extends to the inside and the fixedly connected with slide of camera obscura, slide sliding connection is in the camera obscura, the one end that the rubber buffer was kept away from to the pull rod runs through the sample chamber and extends to the inside in groove of stepping down, the inside.

Preferably, the drill rod is formed by sequentially and threadedly engaging a first section of rod, a second section of rod and a third section of rod.

Preferably, a sliding groove is formed in one end face, close to the drill bit, of the drill rod, the groove bottom of the sliding groove is connected with a sliding rod through a spring, a connecting plate is fixedly connected to one end face, located outside the sliding groove, of the sliding rod, and the connecting plate is fixedly connected with the drill bit.

Preferably, two limiting grooves are formed in the groove wall of the sliding groove, and two limiting blocks corresponding to the sliding grooves are fixedly connected to the sliding rod.

Preferably, a clamping plug is fixedly connected to one side face, close to the drill rod, of the connecting plate, and the clamping plug is movably inserted into the air inlet pipeline.

Preferably, the inner part of the air inlet pipeline is fixedly connected with a bushing plate.

Preferably, the outer side surface of the rubber column is fixedly connected with a plurality of sealing strips.

Preferably, a sealing plug is fixedly connected to a side surface of the sliding plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model combines the sampling device and the drill rod together, the pressure gas in the coal bed can enter the inner part of the blind groove through the air inlet pipeline, the deflector rod is pulled at the moment, the pull rod drives the rubber column to move together, the sampling cavity can continuously suck the air in the coal bed into the inner part of the blind groove and the air inlet pipeline, when the sealing plug on the sliding plate is contacted with the air inlet pipeline, the sampling cavity and the camera obscura are in a sealing state to finish sampling, then the drill rod is taken out, then the deflector rod is pushed to discharge the air in the sampling cavity, the discharged gas can be sampled and detected, the device can directly sample the gas through the drill rod, the gas can be well prevented from leaking from the inside of the drill hole during sampling, simultaneously, the blocking plug and the leakage plate can prevent impurities from entering the sampling cavity, and the sampling cavity can be conveniently sealed by the device.

Drawings

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

FIG. 2 is a schematic structural diagram II of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic view of the drilling state of the present invention;

fig. 5 is a schematic diagram of the state of the sampling cavity of the present invention when it is sealed.

In the figure: 1. the drilling rod, 101, first festival pole, 102, second festival pole, 103, third festival pole, 2, spout, 3, spring, 4, slide bar, 5, connecting plate, 6, drill bit, 7, stopper, 8, spacing groove, 9, admission line, 10, camera obscura, 11, sample chamber, 12, slide, 13, connecting rod, 14, rubber column, 15, pull rod, 16, driving lever, 17, bushing, 18, the card stopper, 19, the groove of stepping down, 20, the sealing plug, 21, the sealing strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a novel sampler for coal bed gas detection comprises a drill rod 1, wherein a drill bit 6 is arranged on one end face of the drill rod 1, the other end of the drill rod 1 is connected with a drilling machine, the drilling machine drives the drill rod 1 to rotate, so that the drill bit 6 rotates to drill a coal bed for sampling, an air inlet pipeline 9 is arranged on one end face, close to the drill bit 6, of the drill rod 1, one end, located inside the drill rod 1, of the air inlet pipeline 9 is communicated with a blind groove 10 arranged inside the drill rod 1, one end groove wall of the blind groove 10 is communicated with a sampling cavity 11, the air inlet pipeline 9 is communicated with one end, far away from the drill bit 6, of the blind groove 10, one end, far away from the drill bit 6, of the blind groove 10 is communicated with the sampling cavity 11 (as shown in figure 4), the sampling cavity 11 is also arranged inside the drill rod 1, a rubber column 14 is slidably connected inside the sampling cavity 11, the rubber column 14 is tightly attached to the, keep away from and be connected with pull rod 15 on the side of camera obscura 10, the one end that rubber column 14 was kept away from to connecting rod 13 extends to the inside of camera obscura 10 and fixedly connected with slide 12, slide 12 sliding connection is in camera obscura 10, slide 12 closely laminates with the outside cell wall of camera obscura 10, slide 12 also adopts the rubber material can realize sealed effect, can block up admission line 9 when slide 12 and admission line 9 and communicating place mutual contact of camera obscura 10, make camera obscura 10 and sample chamber 11's inside keep sealed, the one end that rubber buffer 14 was kept away from to pull rod 15 runs through sample chamber 11 and extends to the inside of groove 19 of stepping down, the groove 19 of stepping down is established in the inside of drilling rod 1, one end fixedly connected with 16 that pull rod 15 is located the groove 19 of stepping down, because the problem of manufacturing, as shown in figure 3, drilling rod 1 comprises first section pole 101, second section pole 102 and third section pole 103 threaded engagement driving lever in proper order, the node positions of the first section rod 101 and the second section rod 102 are arranged at the left end position of the sampling cavity 11, so that slotting by cutting is facilitated, the node positions of the second section rod 102 and the third section rod 103 are arranged at the positions where the air inlet pipeline 9 and the blind groove 10 are communicated, the pull rod 15 pulls the rubber column 14 to move, at the moment, the sampling cavity 11 pumps gas in a coal layer into the sampling cavity 11 through the blind groove 10 and the air inlet pipeline 9, and when the rubber column 14 is in contact with the left side wall of the sampling cavity 11, the sliding plate 12 can plug the position where the air inlet pipeline 9 is communicated with the blind groove 10, so that the sampling cavity 11 stores gas in a sealing mode.

Specifically, a sliding groove 2 is formed in one end face, close to a drill bit 6, of the drill rod 1, a sliding rod 4 is connected to the bottom of the sliding groove 2 through a spring 3, a connecting plate 5 is fixedly connected to one end face, located outside the sliding groove 2, of the sliding rod 4, the connecting plate 5 is fixedly connected with the drill bit 6, the spring 3 can give certain thrust to the drill bit 6 through the sliding rod 4 and the connecting plate 5 when drilling is conducted, drilling efficiency can be accelerated to a certain extent, in the tunneling process, the drill bit 1 is pushed backwards, the drill bit 6 and the drill rod 1 are attached at the moment, and when the tunneling is stopped or a coal seam is opened, the spring 3 can bounce the drill bit 6 to enable the drill bit 6 and the drill rod 1 to directly have a gap.

Particularly, it has two spacing grooves 8 to open on the cell wall of spout 2, slide bar 4 last fixedly connected with two stoppers 7 that correspond with it, two spacing grooves 8 mutual symmetries, two stoppers 7 also mutual symmetries, two stoppers 7 sliding connection respectively are in the inside of the spacing groove 8 that corresponds, and spacing groove 8 and stopper 7's cooperation can prevent that drill bit 6 from producing and skidding, can not rotate along with drilling rod 1 together.

Specifically, a clamping plug 18 is fixedly connected to one side face, close to the drill rod 1, of the connecting plate 5, the clamping plug 18 is movably connected with the air inlet pipeline 9 in an inserting mode, the clamping plug 18 can be inserted into the air inlet pipeline 9 during drilling, therefore, impurities can be effectively prevented from entering the air inlet pipeline 9, the air inlet pipeline 9 is blocked in the tunneling process of the drill bit 6, and the impurities are effectively prevented from entering the sampling cavity 11.

Specifically, a bushing 17 is fixedly connected to the inside of the intake duct 9, and the bushing 17 can prevent solid particles from being mixed into the intake duct 9 when the plug 18 is disconnected from the intake duct 9.

Specifically, a plurality of sealing strips 21 are fixedly connected to the outer side surface of the rubber column 14, and the sealing strips 21 can enable the rubber column 14 to be attached to the side wall of the sampling cavity 11 more tightly.

In particular, a sealing plug 20 is fixedly connected to the side of the sliding plate 12, and the sealing plug 20 can better maintain the sealing between the sampling cavity 11 and the camera obscura 10.

The working principle is as follows: install drilling rod 1 on the rig during the use, make drill bit 6 aim at the place that needs drilling, then start the rig, drill, the place ahead of drill bit 6 does not have pressure this moment when drill bit 6 gets into the gas layer spring 3 can push away drill bit 6 to the outside of spout 2, the jam 18 can break away from with admission line 9 and be connected, at this moment can stimulate driving lever 16, thereby drive pull rod 15, at this moment pull rod 15 will stimulate rubber column 14 and bleed, slide 12 and the sealing plug 20 on it can just in time plug up the communicating one end of admission line 9 and camera obscura 10 when bleeding and accomplish sealedly, can take out drilling rod 1 this moment, then promote driving lever 16 and pull rod 15 and make rubber column 14 with the inside gas escape of sampling cavity 11, thereby carry out subsequent detection work.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a novel sampler of coal seam gas detection, includes drilling rod (1), its characterized in that: be equipped with drill bit (6) on the terminal surface of drilling rod (1), and drilling rod (1) is close to and opens on the terminal surface of drill bit (6) has inlet duct (9), inlet duct (9) are located drilling rod (1) inside one end and establish at camera obscura (10) of drilling rod (1) inside and communicate with each other, the one end cell wall and the sample chamber (11) of camera obscura (10) communicate with each other, the inside sliding connection of sample chamber (11) has rubber column (14), fixedly connected with connecting rod (13) on the side of rubber column (14), be connected with pull rod (15) on the another side, the one end that rubber column (14) were kept away from in connecting rod (13) extends to the inside and fixedly connected with slide (12) of camera obscura (10), slide (12) sliding connection is in camera obscura (10), the one end that rubber buffer was kept away from in pull rod (15) runs through sample chamber (11) and extends to the inside of stepping down groove (19), the abdicating groove (19) is arranged in the drill rod (1), and one end of the pull rod (15) in the abdicating groove (19) is fixedly connected with a shifting lever (16).

2. The novel sampler for detecting coal bed gas in claim 1 is characterized in that: the drill rod (1) is formed by sequentially and threadedly engaging a first section of rod (101), a second section of rod (102) and a third section of rod (103).

3. The novel sampler for detecting coal bed gas as claimed in claim 2, wherein: drill rod (1) is close to and opens on the terminal surface of drill bit (6) has spout (2), the tank bottom of spout (2) is connected with slide bar (4) through spring (3), slide bar (4) are located fixedly connected with connecting plate (5) on the outside terminal surface of spout (2), connecting plate (5) and drill bit (6) fixed connection.

4. The novel sampler for detecting coal bed gas as claimed in claim 3, wherein: two limiting grooves (8) are formed in the groove wall of the sliding groove (2), and two limiting blocks (7) corresponding to the sliding rod are fixedly connected to the sliding rod (4).

5. The novel sampler for detecting coal bed gas as claimed in claim 3, wherein: a clamping plug (18) is fixedly connected to one side face, close to the drill rod (1), of the connecting plate (5), and the clamping plug (18) is movably inserted into the air inlet pipeline (9).

6. The novel sampler for detecting coal bed gas in claim 1 is characterized in that: and a bushing plate (17) is fixedly connected inside the air inlet pipeline (9).

7. The novel sampler for detecting coal bed gas in claim 1 is characterized in that: the outer side surface of the rubber column (14) is fixedly connected with a plurality of sealing strips (21).

8. The novel sampler for detecting coal bed gas in claim 1 is characterized in that: and a sealing plug (20) is fixedly connected to the side surface of the sliding plate (12).