Quick plugging device for drilling

Abstract

The utility model discloses a quick plugging device for drilling, and relates to the field of drilling construction, and the quick plugging device comprises a hard pipe and a soft pipe; the hose is arranged in the hard pipe, the cutting part used for cutting the hose is arranged on the inner circumferential face of the hard pipe, the hose can be cut through the cutting part so that the second material in the hose can be mixed and make contact with the first material in the annular space, then the fully-mixed materials are poured into a drill hole, and the materials can well permeate into fine cracks and permeate along the cracks; broken surrounding rocks are bonded together, so that the effects of reinforcing and plugging are achieved; the quick plugging device can be prefabricated and packaged, meets different requirements, is operated manually, is simple and quick, has the advantage of short hole sealing time, solves the problems of large construction amount, high labor intensity, easy water leakage, easy fracturing, short service life and the like in traditional construction, reduces the labor intensity of workers, can improve the leakproofness and the pressure bearing capacity, and is suitable for popularization and application. And good economic benefits can be obtained.

Description

Technical Field

[0001] The present application relates to the field of drilling construction, and in particular to a rapid plugging device for drilling. Background Art

[0002] Coal mine gas is one of the main dangerous factors in coal mine production. If it is not controlled, it will threaten the life and safety of miners. Sealing holes is an effective way to control gas explosions. By sealing the holes in the coal seam, the escape of gas can be reduced, the gas concentration can be reduced, and the possibility of gas explosion can be reduced. Therefore, how to quickly seal the holes is an urgent problem to be solved in on-site construction. Utility Model Content

[0003] The embodiment of the present application provides a rapid sealing device for drilling holes, which is easy to operate and has a good sealing effect.

[0004] An embodiment of the present application provides a rapid plugging device for drilling, comprising a hard tube and a soft tube; the soft tube is arranged in the hard tube, and the bottom of the soft tube is connected to the inner bottom surface of the hard tube; an annulus is formed between the outer circumference of the soft tube and the inner circumference of the hard tube; the annulus is used to set a first material, and the inside of the soft tube is used to set a second material; a cutting part for cutting the soft tube is arranged on the inner circumference of the hard tube, and the soft tube is operated so that the outer circumference of the soft tube contacts the cutting part on the inner circumference of the hard tube.

[0005] The rapid plugging device of the present application has at least the following beneficial effects:

[0006] When the hole needs to be sealed, the quick sealing device of the present application fills the first material (such as a curing agent) into the annulus, and the second material (such as polyurethane) is pre-stored in the interior of the hose. The staff manually operates the hose so that the outer periphery of the hose contacts the cutting portion on the inner periphery of the hard pipe. The cutting portion cuts the hose so that the second material in the hose is mixed and contacted with the first material in the annulus. The fully mixed and contacted materials are temporarily stored in the hard pipe, and then the hard pipe is transferred to the hole to be sealed, and the fully mixed materials are poured into the hole. The materials can penetrate into the small cracks well and penetrate along the cracks to make the broken surrounding rocks bond together, so as to achieve the effect of reinforcement and sealing. The quick sealing device of the present application can be prefabricated and packaged to meet different needs. It is manually operated, simple and fast, and has the advantages of short sealing time. It solves the problems of large construction volume, high labor intensity, easy leakage, easy fracturing, short service life, etc. in traditional construction, reduces the labor intensity of workers, can improve airtightness and pressure bearing capacity, and can achieve good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0008] Figure 1 It is a structural schematic diagram of the rapid plugging device of Example 1 of the present application;

[0009] Figure 2 yes Figure 1 Vertical section of

[0010] Figure 3 It is a schematic structural diagram of a rapid plugging device according to Embodiment 2 of the present application;

[0011] Figure 4 This is a schematic diagram of the rapid plugging device of Example 2 of the present application when sealing a hole;

[0012] Description of the reference numerals is as follows:

[0013] 100, hard tube; 101, inner bottom surface of hard tube; 102, cutting portion; 102a, serrations; 103, open end; 104, threaded hole;

[0014] 200, hose; 201, hose body; 202, knob cover;

[0015] 300, stirring component; 301, stirring rod; 302, stirring blade;

[0016] 400, first material;

[0017] 500, second material;

[0018] 600. Holes to be plugged. DETAILED DESCRIPTION

[0019] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] Embodiment 1:

[0022] This embodiment discloses a rapid plugging device for drilling, which includes a hard pipe 100 and a soft pipe 200. Figure 1 and Figure 2 As shown, the details are as follows:

[0023] The hard tube 100 is in the shape of a hollow cylinder, with one axial end of the hard tube 100 closed and the other axial end of the hard tube 100 configured as an open end 103, and the hose 200 can extend from the open end 103 to the inner bottom surface 101 of the hard tube. The material of the hard tube 100 in this embodiment can be existing materials such as PVC material or aluminum-plastic composite material.

[0024] The shape of the hose 200 is a hollow cylinder. The hose 200 can be made of tin, aluminum, or a flexible film material, as long as the existing material can achieve the following two functions: first, the inside of the hose 200 can hold materials; second, the hose 200 can be deformed under a certain external force and can be easily cut by the cutting part 102 set inside the hard tube 100.

[0025] At least part of the hose 200 is disposed in the hard pipe 100, and the lower end of the hose 200 is connected to the inner bottom surface 101 of the hard pipe, wherein the outer diameter of the hose 200 is smaller than the inner diameter of the hard pipe 100, so that an annulus is formed between the outer circumference of the hose 200 and the inner circumference of the hard pipe 100, and a first material 400 is disposed in the annulus, and a second material 500 is disposed inside the hose 200, and the first material 400 and the second material 500 are in a separated state before the hose 200 is not cut.

[0026] In this embodiment, the first material 400 is configured as a curing agent, and the second material 500 is configured as polyurethane. The curing agent and polyurethane can be mixed in a volume ratio of 1:1. When the hose 200 is cut, the curing agent and polyurethane are evenly mixed to quickly form an infusible and insoluble polymer material (i.e., Marisan). This material has the advantages of strong adhesion, high strength, good flame retardancy, and good antistatic properties. Among them, Marisan has low viscosity and can penetrate into small cracks well. It can penetrate along the cracks to make the broken surrounding rocks bond together to achieve the effect of reinforcement. In other embodiments, the first material 400 can also be configured as a catalyst, and the second material 500 is configured as a resin. The catalyst and the resin are mixed to form Rockxiu.

[0027] In this embodiment, Marisan is used as the drilling plugging material. The advantage is that Marisan does not shrink after curing, the sealing effect is stable, and the sealing performance is high. Marisan can be prefabricated and packaged to meet different needs.

[0028] In some preferred embodiments, the hose 200 includes a hose body 201 and a knob cover 202; the hose body 201 is shaped like a hollow cylinder, and the material of the hose body 201 is tin, aluminum, or a flexible film material. The lower end of the hose body 201 is glued to the inner bottom surface 101 of the hard tube, so that a space capable of storing the second material 500 is formed between the hose body 201 and the inner bottom surface 101 of the hard tube, and the first material 400 and the second material 500 are separated. The knob cover 202 covers the upper end of the hose body 201 and closes the upper end opening of the hose body 201, wherein the knob cover 202 (rigid material) is glued to the hose body 201, and the connection force between the knob cover 202 and the hose body 201 is greater than the connection force between the hose body 201 and the inner bottom surface of the hard tube, so that the staff can twist the hose body 201 through the knob cover 202 to deform it and cut it.

[0029] In this embodiment, a cutting portion 102 is provided on the inner circumference of the hard tube 100, and the cutting portion 102 is used to cut the hose body 201, so that the second material 500 in the hose body 201 contacts and mixes with the first material 400 in the annulus. The cutting portion 102 includes a plurality of saw teeth 102a provided on the inner circumference of the hard tube 100, and the saw teeth 102a are located in the annulus. The number and arrangement position of the saw teeth 102a are selected and designed according to actual conditions, as long as the saw teeth 102a can cut the hose 200 when the hose 200 and the hard tube 100 move relative to each other. In other embodiments, the cutting portion 102 can also be a sharp part such as a spike.

[0030] Embodiment 2:

[0031] The difference between the second embodiment and the first embodiment is that the rapid plugging device of the second embodiment further includes a stirring assembly 300; Figure 3 As shown, a threaded hole 104 is provided at the lower end of the hard tube 100 (the end away from the open end 103), and the threaded hole 104 can be coaxially arranged with the hard tube 100. The stirring assembly 300 is threadedly connected in the threaded hole 104, and at least part of the stirring assembly 300 is located in the hose body 201, and at least part of the stirring assembly 300 extends axially away from the hose body 201 to the outside of the hard tube 100, wherein the stirring assembly 300 is used to stir and mix the first material 400 and the second material 500, and at the same time, the staff can hold the stirring assembly 300 to deliver the hard tube 100 (filled with the mixed first material 400 and the second material 500) to the hole that needs to be blocked.

[0032] In the second embodiment, the stirring assembly 300 includes a stirring rod 301 and a stirring blade 302. The stirring rod 301 is threadedly connected to the threaded hole 104. At least a portion of the stirring rod 301 is located in the hose body 201. At least a portion of the stirring rod 301 is located on the outside of the hard tube 100. Multiple stirring blades 302 are arranged on the outer periphery of the stirring rod 301, and the stirring blades 302 are all located in the hose 200 or the hard tube 100. When the stirring rod 301 is rotated, the stirring blades 302 can stir the first material 400 and the second material 500 in the hard tube 100 evenly.

[0033] The material of the stirring blade 302 can be selected to be flexible, so that the stirring blade 302 can be folded and easily pulled out, thereby achieving the effect of reusability.

[0034] In the second embodiment, a working mode of the rapid plugging device is as follows: Figure 4 As shown:

[0035] Based on the specification requirements of the construction site, a quick plugging device of appropriate specifications is selected. For example, if the inner diameter of the hole 600 to be plugged is 42 mm, the maximum diameter of the selected quick plugging device (specifically the hard pipe 100) is 40 mm, wherein the depth of the hole to be plugged matches the axial length of the quick plugging device (specifically the hard pipe 100);

[0036] 1. The hose body 201 is rotated by the knob cover 202, and the outer circumference of the hose body 201 is cut by the cutting part 102, so that the hose body 201 is broken, and after the hose body 201 is broken, the hose body 201 is pulled out by the knob cover 202;

[0037] 2. After the first material 400 and the second material 500 are quickly and fully stirred by rotating the stirring rod 301, the open end 103 of the hard tube 100 is directed toward the hole 600 to be blocked, and the stirring rod 301 at the rear side of the hard tube 100 is held, and the hard tube 100 is quickly inserted into the hole. When the required depth is reached, stop and pour the material in the hard tube 100 into the hole;

[0038] 3. Hold the stirring rod 301 and pull out the hard tube 100. The mixed material is left in the hole, and the material blocks the hole.

[0039] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A rapid plugging device for drilling, characterized in that: It includes a hard tube (100) and a soft tube (200); The hose (200) is arranged in the hard pipe (100), and the bottom of the hose (200) is connected to the inner bottom surface (101) of the hard pipe; an annulus is formed between the outer circumference of the hose (200) and the inner circumference of the hard pipe (100); the annulus is used to arrange the first material (400), and the inside of the hose (200) is used to arrange the second material (500); a cutting portion (102) for cutting the hose (200) is arranged on the inner circumference of the hard pipe (100), and the hose is operated so that the outer circumference of the hose contacts the cutting portion on the inner circumference of the hard pipe.

2. The rapid plugging device according to claim 1, characterized in that: The upper end of the hard tube (100) is configured as an open end (103).

3. The rapid plugging device according to claim 1 or 2, characterized in that: A threaded hole (104) is provided at the lower end of the hard tube (100), the stirring assembly (300) is threadedly connected in the threaded hole (104), and the stirring assembly (300) extends into the hose (200).

4. The rapid plugging device according to claim 3, characterized in that: The stirring assembly (300) comprises a stirring rod (301) and a stirring blade (302); the stirring rod (301) is threadedly connected to the threaded hole (104); the stirring rod (301) extends into the hose (200); the stirring blade (302) is arranged on the stirring rod (301) and is located in the hose (200); the stirring rod (301) extends to the outside of the hard tube (100) in a direction away from the hose (200).

5. The rapid plugging device according to claim 1, characterized in that: The hose (200) comprises a hose body (201) and a knob cover (202); the lower end of the hose body (201) is glued to the inner bottom surface (101) of the hard tube, and the knob cover (202) is connected to the upper end of the hose body (201).

6. The rapid plugging device according to claim 5, characterized in that: The knob cover (202) is glued to the hose body (201).

7. The rapid plugging device according to claim 5, characterized in that: The hose body (201) is made of tin or aluminum.

8. The rapid plugging device according to claim 1, characterized in that: The cutting portion (102) comprises saw teeth (102a) arranged in the hard tube (100); when the soft tube (200) and the hard tube (100) move relative to each other, the saw teeth (102a) can cut the soft tube (200).

Images