CN204804758U - Two segmentation hole packers - Google Patents

Abstract

The utility model relates to a two segmentation hole packers, the hole packer includes middle nodule and extension, middle nodule and extension all include core pipe (1), core pipe (1) overcoat is equipped with capsule (2), capsule (2) both ends are passed through pressfitting spare and are connected on core pipe (1), pressfitting spare includes bottom ring (4) of suit on core pipe (1), bottom ring (4) are gone up the cover and are equipped with clamping ring (5), the tip pressfitting of capsule (2) is between bottom ring (4) and clamping ring (5). The utility model relates to a two segmentation hole packers, simple structure, convenient to use just can carry out detection directly perceived to the rock stratum situation.

Description

Two-stage hole sealer

technical field

The utility model relates to a two-stage hole sealing device, which belongs to the technical field of mining equipment.

Background technique

The hole sealer is a sealing device for coalbed methane drainage and coal seam water injection drilling holes; the use of the hole sealer can reduce dust by more than 80%, improve the working environment of workers, prevent dust explosion accidents, moisten the coal body, and prevent coal from spontaneous combustion ;

The existing coal seam hole sealer not only has a complicated water injection channel structure and high cost, but the most important thing is that the internal water flow is not smooth after the hole is sealed; It is impossible to effectively identify and judge the end face of the rock formation through it, so there is an urgent need for a new hole sealer that can overcome the above problems; and the conventional single-section hole sealer cannot be used when encountering long holes. It can be exchanged for construction with longer specifications, which greatly increases the burden on the enterprise.

Contents of the invention

The purpose of the utility model is to overcome the above disadvantages and provide a two-stage hole sealer with simple structure, convenient assembly and visual detection of rock formation conditions.

The purpose of this utility model is achieved in that:

A two-stage hole sealer, the hole sealer includes an intermediate section and an extension section, both of which include a core tube, the core tube is covered with a capsule, and the two ends of the capsule pass through The pressing part is connected to the core tube, the pressing part includes a bottom ring fitted on the core tube, the bottom ring is fitted with a pressing ring, and the end of the capsule is pressed between the bottom ring and the pressing ring between;

The middle section and the extension section are connected by connecting flanges, water channels are arranged on the bottom rings at both ends of the capsule of the middle section, and the inner chamber of the capsule of the middle section passes through the bottom ring on the right end of the middle section. The water channel and the capsule water inlet pipe are connected to the capsule water inlet joint;

The bottom ring at the right end of the capsule of the extension section is provided with a water channel, the connecting flange is pierced with a water pipe, and the inner cavity of the capsule of the extension section passes through the water channel on the bottom ring at the right end of the extension section and is connected to the connection The water pipe on the flange and the water channel on the bottom ring at the left end of the capsule in the middle section are connected to the inner cavity of the capsule in the middle section.

The utility model relates to a two-stage hole sealing device. Both the bottom ring and the pressing ring are provided with obliquely upward wedge-shaped surfaces, and the end of the capsule is obliquely pressed between the bottom ring and the pressing ring.

The utility model relates to a two-stage hole sealing device. A sealing ring is arranged beside the bottom ring at the left end of the capsule of the extension section.

The utility model relates to a two-stage hole sealing device. A guide sleeve is arranged on the capsule water inlet pipe on the core tube of the middle section. The guide sleeve is a cone-shaped structure, and the small end of the cone-shaped structure is close to the capsule.

The utility model relates to a two-stage hole sealing device. A sealing device is connected to the right end surface of the core tube of the middle section, and the sealing device includes a shell connected with the core tube. The shell is provided with a drill Water inlet joint, the housing is provided with an inner sleeve, the inner cylinder wall of the inner sleeve is provided with a snap ring, the left side of the snap ring is provided with a left positioning block, and the left end surface of the inner sleeve snaps There is a left cover, and the left cover is closely attached to the left positioning block. The right side of the snap ring is provided with a mounting seat, and a plurality of Y-shaped sealing rings are provided on the inner wall of the mounting seat. The installation The right end face of the seat is abutted with a right positioning block, the right end face of the inner sleeve is clamped with a right cover, and the right cover is closely attached to the right positioning block, and the right end face of the housing is provided with a stop ring, and the right cover fits on the stop ring; a spring is arranged in the housing, one end of the spring is connected to the left end of the housing, and the other end of the spring is connected to the left end surface of the left cover.

The utility model relates to a two-stage hole sealing device, an O-shaped sealing ring is arranged between the left cover and the casing.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model is simple in structure and easy to use, and the columnar structure can be pressed out as a whole after the drilling is completed, which is convenient for observing the rock structure; at the same time, during the whole working process, the continuously introduced high-pressure water can also be delivered to cool down. It can prevent the drill bit and drill pipe from being damaged due to high temperature due to friction; when the drill hole is long, it can be conveniently combined into a two-stage structure for use.

Description of drawings

Fig. 1 is a structural schematic diagram of a two-stage hole sealing device of the present invention.

Fig. 2 is a structural schematic diagram of the middle section of the two-stage hole sealing device of the present invention.

Fig. 3 is a partially enlarged view of I in Fig. 2 of the two-stage hole sealing device of the present invention.

Fig. 4 is a partially enlarged view of A in Fig. 1 of the two-stage hole sealing device of the present invention.

Fig. 5 is a structural schematic diagram of the sealing device of the two-stage hole sealing device of the present invention.

Fig. 6 is a schematic diagram of the state of the two-stage hole sealing device of the present invention during drilling and coring.

in:

Core tube 1, capsule 2, connecting flange 3, bottom ring 4, pressure ring 5, capsule water inlet pipe 6, capsule water inlet joint 7, guide sleeve 8, sealing ring 9;

Housing 101, drilling water inlet joint 102, inner sleeve 103, snap ring 104, left positioning block 105, left cover 106, mounting seat 107, Y-shaped sealing ring 108, right positioning block 109, right cover 110, Spring 111, retaining ring 112.

Detailed ways

Referring to Figures 1 to 6, the utility model relates to a two-stage hole sealer, the hole sealer includes an intermediate section and an extension section, and both the intermediate section and the extension section include a core tube 1, and the core A capsule 2 is sheathed on the tube 1, and the two ends of the capsule 2 are connected to the core tube 1 through a pressing piece. The pressing piece includes a bottom ring 4 fitted on the core tube 1. There is a pressure ring 5, and the end of the capsule 2 is pressed between the bottom ring 4 and the pressure ring 5. Preferably, the bottom ring 4 and the pressure ring 5 are provided with an obliquely upward wedge-shaped surface, so that the capsule 2 The end of the capsule 2 is obliquely upwardly pressed between the bottom ring 4 and the pressure ring 5; when the capsule 2 expands after water injection, the end of the capsule 2 moves obliquely upward, and at this time, due to the existence of the wedge-shaped surface, it will not come out of the pressure ring. Composite;

The intermediate section and the extension section are connected by a connecting flange 3, water channels are arranged on the bottom rings 4 at both ends of the capsule 2 of the intermediate section, and the inner chamber of the capsule 2 of the intermediate section passes through the The water channel on the bottom ring 4 and the capsule water inlet pipe 6 are connected to the capsule water inlet joint 7;

The bottom ring 4 on the right end of the capsule 2 of the extension section is provided with a water channel, the connecting flange 3 is pierced with a water pipe, and the inner cavity of the capsule 2 of the extension section passes through the water channel on the bottom ring 4 at the right end of the extension section. 1. The water pipe connected to the connecting flange 3, the bottom ring 4 located at the left end of the capsule 2 of the middle section, and the upper water channel are connected to the inner cavity of the capsule 2 of the middle section; thereby realizing the water supply of the capsule on the middle section and the extension section;

Further, a sealing ring 9 is provided beside the bottom ring 4 at the left end of the capsule 2 of the extension section to seal it and prevent water from flowing out;

Simultaneously, the capsule water inlet pipe 6 on the middle section core tube 1 is provided with a guide sleeve 8, the guide sleeve 8 is a tapered structure, and the small end of the tapered structure is close to the capsule 2; thus making the insertion and drilling work It can fix the hole sealer and prevent it from shaking;

Further, a sealing device is connected to the right end surface of the intermediate section core tube 1, specifically, the sealing device includes a shell 101 connected to the core tube 1, and the shell 101 is provided with a drilling hole. A water joint 102, the housing 101 is provided with an inner sleeve 103, the inner wall of the inner sleeve 103 is provided with a snap ring 104, the left side of the snap ring 104 is provided with a left positioning block 105, the The left end surface of the inner sleeve 103 is clamped with a left cover 106, and the left cover 106 is closely attached to the left positioning block 105, and the right side of the snap ring 104 is provided with a mounting seat 107, and the mounting seat 107 A plurality of Y-shaped sealing rings 108 are arranged on the inner wall, a right positioning block 109 is placed against the right end surface of the mounting base 107, a right cover 110 is clamped on the right end surface of the inner sleeve 103, and the right cover 110 Fit closely with the right positioning block 109, the right end surface of the housing 101 is provided with a retaining ring 112, and the right cover 110 is fitted on the retaining ring 112; the housing 101 is provided with a spring 111, the spring One end of the spring 111 is connected to the left end of the housing 1, and the other end of the spring 111 is connected to the left end surface of the left cover 106; further, an O-ring is arranged between the left cover 106 and the housing 101, Guarantee the sealing performance during work;

Through the setting of the sealing device, when the drill pipe is working, the mounting seat can follow the drill pipe to offset properly, and the Y-shaped sealing ring ensures the sealing performance during the working process;

A drilling and coring process, the drill pipe is inserted into the hole sealer, and the head of the drill pipe is connected to the core bit; the high-pressure water is introduced into the capsule 2 of the intermediate section and the extension section through the capsule water inlet joint 7, so that the hole is sealed The device is fixed on the borehole; the drill pipe is started to rotate, and at this time, the high-pressure water is introduced through the drilling water inlet joint 102, and the high-pressure water enters the borehole through the channel between the drill pipe and the inner pipe wall of the core pipe 1; When the core is being drilled, the drill pipe is stopped. At this time, the high-pressure water flows into the drill pipe through the drill bit, and the core of the columnar structure in the drill pipe is pressed out as a whole; through the core of the overall structure, the geological condition of the rock formation can be judged;

In addition: it should be noted that the above specific implementation is only an optimization solution of this patent, and any changes or improvements made by those skilled in the art based on the above ideas are within the scope of protection of this patent.

Claims (6)

1. A two-stage hole sealer, characterized in that: the hole sealer includes an intermediate section and an extension section, both of which include a core tube (1), and the core tube (1 ) is covered with a capsule (2), the two ends of the capsule (2) are connected to the core tube (1) through a pressing piece, and the pressing piece includes a bottom ring (4) set on the core tube (1) ), the bottom ring (4) is overlaid with a pressure ring (5), and the end of the capsule (2) is pressed between the bottom ring (4) and the pressure ring (5); The intermediate section and the extension section are connected by connecting flanges (3), and water channels are provided on the bottom rings (4) at both ends of the capsule (2) of the intermediate section, and the capsule (2) of the intermediate section The inner cavity of the capsule is connected to the capsule water inlet joint (7) through the water channel and the capsule water inlet pipe (6) on the bottom ring (4) located at the right end; The bottom ring (4) at the right end of the capsule (2) of the extension section is provided with a water channel, the connecting flange (3) is pierced with a water pipe, and the inner cavity of the capsule (2) of the extension section passes through the The water channel on the bottom ring (4) at the right end, the water pipe connected to the connecting flange (3), the water channel on the bottom ring (4) at the left end of the capsule (2) in the middle section is connected to the capsule (2) in the middle section of the inner cavity. 2. A two-stage hole sealing device according to claim 1, characterized in that: the bottom ring (4) and the pressure ring (5) are both provided with wedge-shaped surfaces inclined upwards, and the end of the capsule (2) Press it obliquely upwards between the bottom ring (4) and the pressure ring (5). 3. A two-stage hole sealing device according to claim 1 or 2, characterized in that: a sealing ring (9) is provided beside the bottom ring (4) at the left end of the capsule (2) of the extension section. 4. A two-stage hole sealing device according to claim 1 or 2, characterized in that: the capsule water inlet pipe (6) on the middle section core pipe (1) is provided with a guide sleeve (8), the The guide sleeve (8) is a conical structure, and the small end of the conical structure is close to the capsule (2). 5. A two-stage hole sealing device according to claim 1 or 2, characterized in that: a sealing device is connected to the right end surface of the middle section core tube (1), and the sealing device includes a sealing device with the core tube ( 1) Connected shells (101), the shells (101) are provided with drilling water inlet joints (102), and the shells (101) are provided with an inner sleeve (103), the inner sleeve A clasp (104) is provided on the inner cylinder wall of the cylinder (103), a left positioning block (105) is provided on the left side of the clasp (104), and a left end surface of the inner sleeve (103) is clamped with The left cover (106), and the left cover (106) is closely attached to the left positioning block (105), and the right side of the snap ring (104) is provided with a mounting seat (107), and the mounting seat (107 ) is provided with a plurality of Y-shaped sealing rings (108), the right end surface of the mounting base (107) is against the right positioning block (109), and the right end surface of the inner sleeve (103) is clamped with The right cover (110), and the right cover (110) is closely attached to the right positioning block (109), and the right end surface of the housing (101) is provided with a retaining ring (112), and the right cover ( 110) fit on the retaining ring (112); a spring (111) is arranged in the housing (101), one end of the spring (111) is connected to the left end of the housing (1), and the spring (111 ) is connected to the left end surface of the left cover (106). 6. A two-stage hole sealing device according to claim 5, characterized in that: an O-ring sealing ring is arranged between the left cover (106) and the housing (101).