Plugging device for goaf

Abstract

The utility model provides a plugging device for a goaf, which comprises an air bag, an air inlet pipe, a gas outlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, and is characterized in that the air bag is internally provided with an air inflation cavity communicated with a high-pressure gas device; 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 utility model 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] This utility model belongs to the field of coal mining, and in particular relates to a sealing device for goaf areas. Background Technology

[0002] After coal mining, a large number of goaf areas are created, which are prone to accumulating gases such as methane. Sealing devices are needed to seal these areas to prevent the leakage of harmful gases. The current sealing method is to use concrete pouring, which has a long construction period and is inconvenient to dismantle later. Although detachable sealing devices have appeared on the market, they are inconvenient to store and are not conducive to later transportation and reuse. Utility Model Content

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

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A goaf sealing device, comprising:

[0006] An airbag, which has an inflation chamber inside, is connected to the air outlet of a high-pressure air device;

[0007] The frame includes diagonal braces and two parallel vertical bars. There are two diagonal braces, and the middle ends of the two diagonal braces are hinged together by a hinge shaft. The two diagonal braces are arranged crosswise, and the two ends of each diagonal brace are hinged to a sliding tube. The sliding tubes at both ends of the diagonal brace are respectively installed on the outside of the two vertical bars.

[0008] There are two frames, located on either side of the airbag, and the two frames are connected by a connecting component.

[0009] Furthermore, the vertical rod includes an adjusting column and two receiving round tubes, the two receiving round tubes being connected by the adjusting column, and a top column being fixed at the end of the receiving round tubes away from the adjusting column;

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

[0011] Furthermore, a rubber pad is fixed at the end of the top column away from the receiving round pipe;

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

[0013] Furthermore, one receiving round tube has a left-hand internal thread on the inner side of one end near the adjusting column, and the other receiving round tube has a right-hand internal thread on the inner side of one end near the adjusting column. The two ends of the adjusting column are respectively threaded to the two receiving round tubes.

[0014] Furthermore, the adjusting column has an insertion hole.

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

[0016] Furthermore, the airbag has a first through hole that matches the hinge shaft, and the hinge shaft is installed inside the first through hole.

[0017] Furthermore, the connecting assembly includes two sleeves, each sleeve having a connecting plate fixedly mounted on it. One sleeve has a strip-shaped through hole on its connecting plate, and the other sleeve has a sliding post fixedly mounted on its connecting plate. The diameter of the sliding post matches the width of the strip-shaped through hole, and the sliding post is installed inside the strip-shaped through hole.

[0018] Two sleeves are installed on the outside of the corresponding vertical bars of the two frames, respectively.

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

[0020] Furthermore, the sleeve is connected to the connecting plate via a positioning post, and the airbag has a second through hole that matches the positioning post, with the positioning post installed inside the second through hole.

[0021] Compared with the prior art, the goaf sealing device of this utility model has the following advantages:

[0022] (1) The sealing device for goaf area described in this utility model is convenient and quick to operate, improves work efficiency, and is easy to store and can be reused.

[0023] (2) The sealing device for goaf described in this utility model not only plays a role in positioning the device, but also plays a role in restricting the lateral expansion of the airbag, thereby ensuring the sealing effect of the sealing. Attached Figure Description

[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0025] Figure 1 This is a three-dimensional structural diagram of the device in use according to an embodiment of the present utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the device described in this embodiment of the invention without the airbag installed.

[0027] Figure 3 As described in the embodiments of this utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0028] Figure 4 As described in the embodiments of this utility model Figure 2 Schematic diagram of the structure at point B;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the airbag described in an embodiment of the present invention;

[0030] Figure 6 This is a three-dimensional structural diagram of the sleeve with a strip-shaped through hole as described in an embodiment of the present utility model;

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

[0032] Explanation of reference numerals in the attached figures:

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

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

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

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

[0039] Airbag 1, with an inflation chamber inside, the inflation chamber being connected to the air outlet of a high-pressure air device; Frame, the frame including diagonal braces 3 and two parallel vertical rods 2, the number of diagonal braces 3 being two, the middle ends of the two diagonal braces 3 being hinged by hinge shafts 301, the two diagonal braces 3 being arranged crosswise, the two ends of the diagonal braces 3 being respectively hinged to a sliding tube 6, the sliding tubes 6 at both ends of the diagonal braces 3 being respectively installed on the outside of the two vertical rods 2; the number of frames being two, located on both sides of the airbag 1, the two frames being connected by a connecting assembly 4.

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

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

[0042] One receiving tube 201 has a left-hand internal thread on the inner side of one end near the adjusting column 202, and the other receiving tube 201 has a right-hand internal thread on the inner side of one end near the adjusting column 202. The two ends of the adjusting column 202 are threadedly connected to the two receiving tubes 201 respectively. The adjusting column 202 has a hole for inserting a pry bar to rotate it.

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

[0044] The airbag 1 has a first through hole 101 that matches 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 a tight seal.

[0045] The connecting assembly 4 includes two sleeves 401, each with a connecting plate 403 fixedly mounted on it. One sleeve 401 has a strip-shaped through hole 404 on its connecting plate 403, while the other sleeve 401 has a sliding post 405 fixedly mounted on its connecting plate 403. The diameter of the sliding post 405 matches the width of the strip-shaped through hole 404, and the sliding post 405 is installed inside the strip-shaped through hole 404. The two sleeves 401 are respectively installed on the outer sides of the corresponding vertical rods 2 of the two frames, and the sleeves 401 can slide along the length of the vertical rod 2. The frames not only position the device but also limit the lateral expansion of the airbag 1, thereby ensuring the sealing effect of the plug.

[0046] A limiting plate 406 is fixed 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, and 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 post 402. The airbag 1 has a second through hole 102 that matches the positioning post 402. The positioning post 402 is installed inside the second through hole 102 and is glued to the second through hole 102 to ensure sealing.

[0048] Work process:

[0049] When implementing this solution, the device is moved to the position to be sealed, and the two vertical rods 2 are moved in opposite directions. The sliding tube 6 slides outside the vertical rods 2, and the airbag 1 unfolds. The adjusting column 202 of one side frame is rotated so that the rubber gaskets of the two supporting round tubes 201 and the top column 203 are tightly pressed against the top and the ground respectively. Then, air is inflated into the airbag 1 to increase the distance between the two frames. 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 other side frame is rotated, and the side wall of the airbag 1 is sealed against the wellhead. After use, the airbag 1 is vented. Under the action of the spring tension, the two frames move towards each other. The spring tension facilitates the rapid discharge of gas. Finally, the two vertical rods 2 are moved towards each other to complete the storage of the device. The operation process is convenient and quick, improves work efficiency, and is easy to store and can be reused.

[0050] The devices can be arranged in a row, with the airbags 1 of adjacent devices fitting together to achieve a sealing effect, used to seal continuous or large goaf areas.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

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

Claims

1. A sealing device for goaf areas, characterized in that, include: Airbag (1), an inflation chamber is provided inside the airbag (1), and the inflation chamber is connected to the air outlet of the high-pressure air equipment; The frame includes diagonal bracing (3) and two parallel vertical rods (2). There are two diagonal bracing (3). The middle ends of the two diagonal bracing (3) are hinged through a hinge shaft (301). The two diagonal bracing (3) are arranged crosswise. The two ends of the diagonal bracing (3) are respectively hinged to a sliding tube (6). The sliding tubes (6) at both ends of the diagonal bracing (3) are respectively installed on the outside of the two vertical rods (2). The number of frames is two, located on both sides of the airbag (1), and the two frames are connected by a connecting component (4).

2. The goaf sealing device according to claim 1, characterized in that: The vertical rod (2) includes an adjusting column (202) and two receiving round tubes (201). The two receiving round tubes (201) are connected by the adjusting column (202). A top column (203) is fixed at one end of the receiving round tube (201) away from the adjusting column (202). The adjusting column (202) is used to adjust the distance between the two receiving round pipes (201).

3. A sealing device for goaf areas according to claim 2, characterized in that: A rubber pad is fixed at the end of the top column (203) away from the receiving round pipe (201); The diameter of the top column (203) is larger than the outer diameter of the receiving round pipe (201).

4. A sealing device for goaf areas according to claim 2, characterized in that: One receiving round tube (201) has a left-hand internal thread on the inner side of one end near the adjusting column (202), and the other receiving round tube (201) has a right-hand internal thread on the inner side of one end near the adjusting column (202). The two ends of the adjusting column (202) are threadedly connected to the two receiving round tubes (201) respectively.

5. A sealing device for goaf areas according to claim 4, characterized in that: The adjusting column (202) has an insertion hole.

6. A sealing device for goaf areas according to claim 1, characterized in that: The hinge shafts (301) of the two frames are connected by elastic members (5) in a stretched state.

7. A sealing device for goaf areas according to claim 1, characterized in that: The airbag (1) has a first through hole (101) that matches the hinge shaft (301), and the hinge shaft (301) is installed inside the first through hole (101).

8. A sealing device for goaf areas according to claim 1, characterized in that: The connecting assembly (4) includes two sleeves (401), and a connecting plate (403) is fixed on the sleeve (401). One sleeve (401) has a strip-shaped through hole (404) on the connecting plate (403), and the other sleeve (401) has a sliding column (405) fixed on the connecting plate (403). The diameter of the sliding column (405) matches the width of the strip-shaped through hole (404), and the sliding column (405) is installed inside the strip-shaped through hole (404). Two sleeves (401) are respectively installed on the outside of the corresponding vertical rods (2) of the two frames.

9. A goaf sealing device according to claim 8, characterized in that: A limiting plate (406) is fixed 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 goaf sealing device according to claim 9, characterized in that: The sleeve (401) is connected to the connecting plate (403) through the positioning post (402). The airbag (1) has a second through hole (102) that matches the positioning post (402). The positioning post (402) is installed inside the second through hole (102).

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