Plugging device for goaf

Abstract

The invention provides a plugging device for a goaf, and the plugging device comprises an air bag which is internally provided with an air inflation cavity, and the air inflation cavity is communicated with the air outlet end of high-pressure air equipment; the frame comprises two inclined supporting rods and two vertical rods arranged in parallel, the number of the inclined supporting rods is two, the middle ends of the two inclined supporting rods are hinged through a hinge shaft, the two inclined supporting rods are arranged in a crossed mode, the two ends of each inclined supporting rod are hinged to a sliding pipe respectively, and the sliding pipes at the two ends of each inclined supporting rod are installed on the outer sides of the two vertical rods respectively; the two frames are located on the two sides of the air bag correspondingly, and the two frames are connected through a connecting assembly. The device has the beneficial effects that the operation process is convenient and rapid, the working efficiency is improved, and the device is convenient to store and can be repeatedly used.

Description

Technical Field

[0001] The invention belongs to the field of coal mining, and in particular relates to a plugging device for a goaf area. Background Art

[0002] After coal mining, a large number of goafs will appear. Gases such as methane are easily accumulated in the goafs, and sealing devices are needed to prevent the leakage of harmful gases. The current sealing method is to use concrete pouring to seal, which has a long construction period and is not convenient for later disassembly. Although detachable sealing devices have appeared in the market, they are not convenient to store, which is not conducive to later transportation and reuse. Summary of the invention

[0003] In view of this, the present invention aims to provide a plugging device for goaf, in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A plugging device for goaf area, comprising:

[0006] An airbag, wherein an inflation cavity is provided in the airbag, and the inflation cavity is connected to the gas outlet of the high-pressure gas device;

[0007] A frame, wherein the frame comprises an oblique support rod and two parallel vertical rods, the number of the oblique support rods is two, the middle ends of the two oblique support rods are hinged by a hinge shaft, the two oblique support rods are cross-arranged, the two ends of the oblique support rods are respectively hinged to a sliding tube, and the sliding tubes at the two ends of the oblique support rods are respectively installed on the outside of the two vertical rods;

[0008] There are two frames, each of which is located on two sides of the airbag, and the two frames are connected by a connecting component.

[0009] Furthermore, the vertical rod includes an adjustment column and two receiving circular tubes, the two receiving circular tubes are connected by the adjustment column, and a top column is fixedly arranged at one end of the receiving circular tube away from the adjustment column;

[0010] The adjusting column is used to adjust the distance between the two receiving circular tubes.

[0011] Furthermore, a rubber pad is fixedly provided at one end of the top column away from the receiving circular tube;

[0012] The diameter of the top column is larger than the outer diameter of the receiving circular tube.

[0013] Furthermore, a left-handed internal thread is opened on the inner side of one end of a receiving round tube near the adjusting column, and a right-handed internal thread is opened on the inner side of one end of another receiving round tube near the adjusting column. Both ends of the adjusting column are respectively connected to the two receiving round tube threads.

[0014] Furthermore, a socket is provided on the adjusting column.

[0015] Furthermore, the hinge axes of the two frames are connected by elastic members in a stretched state.

[0016] Furthermore, the airbag is provided with a first through hole matching the hinge shaft, and the hinge shaft is installed on the inner side of the first through hole.

[0017] Further, the connection assembly includes two sleeves, a connection plate is fixed on the sleeve, a strip-shaped through hole is opened on the connection plate of one sleeve, and a sliding column is fixed on the connection plate of the other sleeve, the diameter of the sliding column matches the width of the strip-shaped through hole, and the sliding column is installed on the inner side of the strip-shaped through hole;

[0018] The two sleeves are respectively installed on the outer sides of the vertical rods corresponding to the two frames.

[0019] Furthermore, a limiting plate is fixedly provided at one end of the sliding column away from the connecting plate, and the diameter of the limiting plate is larger than the diameter of the sliding column.

[0020] Furthermore, the sleeve is connected to the connecting plate via a positioning post, a second through hole matching the positioning post is formed on the airbag, and the positioning post is installed on the inner side of the second through hole.

[0021] Compared with the prior art, the plugging device for goaf area described in the present invention has the following beneficial effects:

[0022] (1) The plugging device for goaf area described in the present invention has a quick and convenient operation process, improves work efficiency, and is easy to store and can be reused.

[0023] (2) In the plugging device for goaf described in the present invention, the frame not only plays a role in positioning the device, but also plays a role in limiting the lateral expansion of the airbag, thereby ensuring the sealing effect of the plugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 A schematic diagram of a three-dimensional structure of the device in use state according to an embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the device according to an embodiment of the present invention when the airbag is not installed;

[0027] Figure 3 For the embodiment of the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0028] Figure 4 For the embodiment of the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the airbag according to an embodiment of the present invention;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the sleeve with strip-shaped through holes according to an embodiment of the present invention;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the sleeve with sliding columns according to an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Airbag; 2. Vertical rod; 3. Diagonal support rod; 4. Connecting assembly; 5. Elastic member; 6. Sliding tube; 101. First through hole; 102. Second through hole; 201. Receiving round tube; 202. Adjusting column; 301. Articulating shaft; 401. Sleeve; 402. Positioning column; 403. Connecting plate; 404. Strip through hole; 405. Sliding column; 406. Limiting plate. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0038] like Figures 1 to 7 As shown, a plugging device for goaf area includes:

[0039] An airbag 1, wherein an inflation chamber is provided in the airbag 1, and the inflation chamber is connected to the air outlet end of the high-pressure gas equipment; a frame, wherein the frame includes a diagonal support rod 3 and two parallel vertical rods 2, wherein the number of the diagonal support rods 3 is two, the middle ends of the two diagonal support rods 3 are hinged by a hinge shaft 301, the two diagonal support rods 3 are cross-arranged, and the two ends of the diagonal support rod 3 are respectively hinged to a sliding tube 6, and the sliding tubes 6 at the two ends of the diagonal support rod 3 are respectively installed on the outside of the two vertical rods 2; the number of the frames is two, which are respectively located on both sides of the airbag 1, and the two frames are connected by a connecting component 4.

[0040] The vertical rod 2 includes an adjusting column 202 and two receiving circular tubes 201 . The two receiving circular tubes 201 are connected by the adjusting column 202 . A top column 203 is fixedly disposed at one end of the receiving circular tube 201 away from the adjusting column 202 . The adjusting column 202 is used to adjust the distance between the two receiving circular tubes 201 .

[0041] The top column 203 has a rubber pad fixed on one end away from the receiving circular tube 201; the diameter of the top column 203 is larger than the outer diameter of the receiving circular tube 201. The top column 203 not only increases the contact area between the receiving circular tube 201 and the inner wall of the well, but also limits the movement of the sliding pipe 6 and the casing 401.

[0042] One end of the receiving round tube 201 near the adjusting column 202 has a left-handed internal thread, and the other end of the receiving round tube 201 near the adjusting column 202 has a right-handed internal thread. The two ends of the adjusting column 202 are respectively threadedly connected to the two receiving round tubes 201. The adjusting column 202 has a plug hole for inserting a crowbar to rotate the adjusting column 202.

[0043] The hinge shafts 301 of the two frames are connected by an elastic member 5 in a stretched state, and the elastic member 5 is a spring.

[0044] The airbag 1 is provided with a first through hole 101 matching the hinge shaft 301, and the hinge shaft 301 is installed inside the first through hole 101. The hinge shaft 301 is glued to the first through hole 101 to ensure sealing.

[0045] The connection assembly 4 includes two sleeves 401, on which a connection plate 403 is fixed, a strip-shaped through hole 404 is opened on the connection plate 403 of one sleeve 401, and a slide column 405 is fixed on the connection plate 403 of the other sleeve 401, the diameter of the slide column 405 matches the width of the strip-shaped through hole 404, and the slide column 405 is installed on the inner side of the strip-shaped through hole 404; the two sleeves 401 are respectively installed on the outer sides of the vertical rods 2 corresponding to the two frames, and the sleeves 401 can slide along the length direction of the vertical rod 2. The frame not only plays a role in positioning the device, but also plays a role in limiting the lateral expansion of the airbag 1, thereby ensuring the sealing effect of the plugging.

[0046] A limiting plate 406 is fixedly disposed at one end of the sliding column 405 away from the connecting plate 403 . The diameter of the limiting plate 406 is larger than the diameter of the sliding column 405 . The limiting plate 406 prevents the sliding column 405 from falling off.

[0047] The sleeve 401 is connected to the connecting plate 403 via a positioning column 402. The airbag 1 is provided with a second through hole 102 matching the positioning column 402. The positioning column 402 is installed on the inner side of the second through hole 102. The positioning column 402 is glued to the second through hole 102 to ensure sealing.

[0048] Working process:

[0049] When this solution is implemented, the device is moved to the position to be blocked, and the two vertical rods 2 are moved in opposite directions. The sliding tube 6 slides the airbag 1 on the outside of the vertical rod 2 to unfold, and the adjusting column 202 of the frame on one side is rotated to make the rubber gaskets of the two top columns 203 that support the circular tube 201 tightly press against the upper top and the ground respectively. Then, air is inflated into the airbag 1 to increase the distance between the two frames, and the spring is further stretched until the sliding column 405 is limited by the end of the strip hole. The adjusting column 202 of the frame on the other side is rotated, and the airbag 1 fits the side wall of the wellhead to complete the sealing. After use, the airbag 1 is exhausted, and under the tension of the spring, the two frames move toward each other. The tension of the spring facilitates the rapid discharge of gas. Finally, the two vertical rods 2 are moved toward each other to complete the storage of the device. The operation process is convenient and quick, which improves work efficiency, and it is easy to store and can be reused.

[0050] The devices can be used in a row, and the air bags 1 of adjacent devices can be fitted together to achieve a sealing effect, and are used to seal continuous or larger goaf areas.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plugging device for goaf, characterized in that: include: An airbag (1), wherein an inflation chamber is provided in the airbag (1), and the inflation chamber is connected to an air outlet of a high-pressure gas device; A frame, the frame comprising an oblique support rod (3) and two parallel vertical rods (2), the number of the oblique support rods (3) being two, the middle ends of the two oblique support rods (3) being hinged by a hinge shaft (301), the two oblique support rods (3) being cross-arranged, the two ends of the oblique support rod (3) being hinged to a slide tube (6) respectively, and the slide tubes (6) at the two ends of the oblique support rod (3) being respectively installed on the outer sides of the two vertical rods (2); There are two frames, each located on two sides of the airbag (1), and the two frames are connected via a connecting assembly (4).

2. A plugging device for goaf according to claim 1, characterized in that: The vertical rod (2) comprises an adjusting column (202) and two receiving circular tubes (201), the two receiving circular tubes (201) are connected via the adjusting column (202), and a top column (203) is fixedly provided at one end of the receiving circular tube (201) away from the adjusting column (202); The adjusting column (202) is used to adjust the distance between the two receiving circular tubes (201).

3. A plugging device for goaf according to claim 2, characterized in that: A rubber pad is fixedly disposed on one end of the top column (203) away from the receiving circular tube (201); The diameter of the top column (203) is greater than the outer diameter of the receiving circular tube (201).

4. A plugging device for goaf according to claim 2, characterized in that: A left-handed internal thread is formed on the inner side of one end of a receiving circular tube (201) adjacent to the adjusting column (202), and a right-handed internal thread is formed on the inner side of one end of another receiving circular tube (201) adjacent to the adjusting column (202). Both ends of the adjusting column (202) are respectively threadedly connected to the two receiving circular tubes (201).

5. A plugging device for goaf according to claim 4, characterized in that: The adjusting column (202) is provided with a plug hole.

6. The plugging device for goaf according to claim 1, characterized in that: The hinge shafts (301) of the two frames are connected via an elastic member (5) in a stretched state.

7. The plugging device for goaf according to claim 1, characterized in that: The airbag (1) is provided with a first through hole (101) matching the hinge shaft (301), and the hinge shaft (301) is installed on the inner side of the first through hole (101).

8. The plugging device for goaf according to claim 1, characterized in that: The connection assembly (4) comprises two sleeves (401), a connection plate (403) is fixedly provided on the sleeves (401), a strip-shaped through hole (404) is opened on the connection plate (403) of one sleeve (401), and a sliding column (405) is fixedly provided on the connection plate (403) of the other sleeve (401), the diameter of the sliding column (405) matches the width of the strip-shaped through hole (404), and the sliding column (405) is installed on the inner side of the strip-shaped through hole (404); The two sleeves (401) are respectively installed on the outsides of the vertical rods (2) corresponding to the two frames.

9. A plugging device for goaf according to claim 8, characterized in that: A limiting plate (406) is fixedly provided at one end of the sliding column (405) away from the connecting plate (403), and the diameter of the limiting plate (406) is larger than the diameter of the sliding column (405).

10. A plugging device for goaf according to claim 9, characterized in that: The sleeve (401) is connected to the connecting plate (403) via a positioning column (402); a second through hole (102) matching the positioning column (402) is formed on the airbag (1); and the positioning column (402) is installed on the inner side of the second through hole (102).

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