Mine gob-side entry retaining leaking stoppage device

Abstract

The utility model relates to the technical field of goaf air leakage prevention, and provides a mine gob-side entry retaining air leakage stopping device which comprises a shell, an adjusting barrel and an adjusting rod, the shell is provided with an air inlet and an air outlet, and the length direction of the air outlet is arranged in the length direction of the shell; the adjusting barrel is rotationally arranged in the shell, the length of the adjusting barrel is larger than or equal to that of the air outlet, the inlet end of the adjusting barrel faces the air inlet and communicates with the air inlet, and an adjusting notch is formed in the side wall of the adjusting barrel; the adjusting rod is rotationally arranged on the shell and is coaxial with the shell, the inner end of the adjusting rod is connected with the end, away from the air inlet, of the adjusting barrel, the outer end of the adjusting rod is flush with the outer wall of the shell or located on the outer side of the shell, and after the adjusting rod rotates, the adjusting notch is used for being communicated with or separated from the air outlet. By means of the technical scheme, the problems that in the prior art, an air leakage stopping device is simple in structure, the width of an air outlet is fixed, adjustment cannot be conducted according to the actual situation, and the use requirement cannot be better met are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air leakage prevention and control in goaf areas, and specifically relates to an air leakage blocking device for a goaf-side lane in a mine. Background Art

[0002] During mining, a leak-proof device is installed on the main air leakage channel in the goaf of the goaf-retained lane along the top cut. The air curtain formed can flexibly block the air leakage location in the goaf, preventing harmful gases in the goaf from leaking into the lane under the action of negative pressure, thereby improving mining safety. The current leak-proof device has a relatively simple structure, a fixed outlet width, and cannot be adjusted according to actual conditions, which cannot better meet the needs of use. Utility Model Content

[0003] The utility model proposes a device for plugging air leakage along the goaf of a mine, which solves the problem that the device for plugging air leakage in the related art has a relatively simple structure, a fixed air outlet width, cannot be adjusted according to actual conditions, and cannot better meet usage requirements.

[0004] The technical solution of the utility model is as follows: a device for plugging air leakage along the goaf of a mine, which mainly comprises:

[0005] A housing, the housing having an air inlet and an air outlet, wherein the length direction of the air outlet is arranged along the length direction of the housing;

[0006] an adjusting barrel, the adjusting barrel being rotatably disposed inside the shell and coaxially disposed with the shell, the length of the adjusting barrel being greater than or equal to the length of the air outlet, the inlet end of the adjusting barrel facing the air inlet and being in communication with the air inlet, and the side wall of the adjusting barrel having an adjusting notch;

[0007] An adjusting rod is rotatably arranged on the shell and is coaxially arranged with the shell. The inner end of the adjusting rod is connected to the end of the adjusting barrel away from the air inlet. The outer end of the adjusting rod is flush with the outer wall of the shell or located outside it. After the adjusting rod is rotated, the adjusting notch is used to connect or separate with the air outlet.

[0008] Also includes,

[0009] A positioning plate, the positioning plate being arranged at the outer end of the adjusting rod and being coaxial therewith, the positioning plate having a plurality of positioning protrusions on its circumferential surface, all of which are arranged along the circumferential direction of the positioning plate;

[0010] an elastic member, the elastic member being arranged on the housing and located at the periphery of the positioning plate;

[0011] A positioning sleeve is provided on the elastic member and is located between the elastic member and the positioning plate. The positioning protrusion is used for plugging into or separating from the positioning sleeve.

[0012] An accommodating groove is provided on the outer wall of the shell, and the positioning plate, the elastic member and the positioning sleeve are all located in the accommodating groove.

[0013] It also includes a protective plate, which is arranged on the shell and located outside the positioning plate. The protective plate is detachably connected to the shell.

[0014] The outer side of the shell is provided with an annular positioning groove, and the positioning groove is located at the periphery of the accommodating groove. The inner side of the protective plate is provided with a positioning convex ring, and the positioning convex ring is plugged into the positioning groove.

[0015] The outer side of the shell has a slot and a positioning groove, and the slot and the positioning groove are both located outside the positioning groove. The inner side of the protective plate has an insert block, which is plugged into the slot and also includes a locking bolt. The inner end of the locking bolt passes through the protective plate and is threadedly connected to the positioning groove. The number of the locking bolts is at least three, and all of the locking bolts are evenly arranged around the axis of the protective plate.

[0016] It also includes a sealing ring, which is arranged on the periphery of the adjusting rod and located between the adjusting rod and the adjusting barrel.

[0017] The regulating barrel is provided with an outer positioning groove, and the outer side of the sealing ring is engaged with the outer positioning groove.

[0018] The adjusting rod is provided with an inner positioning groove, and the inner side of the sealing ring is engaged with the inner positioning groove.

[0019] Also includes,

[0020] a regulating valve, the regulating valve being located outside the housing;

[0021] A flow meter is connected between the regulating valve and the air inlet.

[0022] The working principle and beneficial effects of the utility model are as follows: the shell has an air inlet and an air outlet, and the length direction of the air outlet is arranged along the length direction of the shell; the adjusting barrel is rotatably arranged inside the shell and is coaxially arranged with the shell, the length of the adjusting barrel is greater than or equal to the length of the air outlet, the inlet end of the adjusting barrel faces the air inlet and is connected with the air inlet, and an adjusting notch is provided on the side wall of the adjusting barrel; the adjusting rod is rotatably arranged on the shell and coaxially arranged with the shell, the inner end of the adjusting rod is connected to the end of the adjusting barrel away from the air inlet, and the outer end of the adjusting rod is flush with the outer wall of the shell or located outside it, and after the adjusting rod is rotated, the adjusting notch is used to connect or separate with the air outlet.

[0023] When the operator rotates the adjustment lever, the lever, acting as a power transmission component, drives the adjustment barrel. The adjustment notch on the barrel's side changes position as the barrel rotates. Once adjusted, the adjustment lever is locked in its current position. When the adjustment notch completely overlaps the air outlet, the outlet is at maximum ventilation, allowing air to flow smoothly from the air inlet through the adjustment notch in the adjustment barrel to the outlet. When the adjustment barrel rotates so that the adjustment notch partially overlaps the air outlet, the outlet's ventilation area decreases, resulting in a corresponding decrease in air velocity and volume. When the adjustment barrel rotates so that the adjustment notch completely separates from the air outlet, the outlet is blocked by the barrel wall, preventing air from escaping. Precisely controlling the relative position of the adjustment notch and the air outlet allows for flexible adjustment of the air volume at the outlet, avoiding the problem of excessive or insufficient air volume caused by a fixed outlet width. This improves ventilation efficiency and quality, enhances the adaptability and flexibility of the device, and ensures safe mine production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0025] Figure 1 It is the main view of the present utility model.

[0026] Figure 2 This is a left view of the connection between the adjustment barrel and the shell in the utility model.

[0027] Figure 3 This is a front view of the connection between the positioning plate and the housing in the utility model.

[0028] Figure 4 This is a right side view of the connection between the positioning plate and the housing in the utility model.

[0029] Figure 5 It is a left view of the protective plate in the present utility model.

[0030] In the figure: 1. Shell, 2. Adjusting barrel, 3. Adjusting rod, 4. Air inlet, 5. Air outlet, 6. Adjusting notch, 7. Positioning plate, 8. Elastic member, 9. Positioning sleeve, 10. Positioning protrusion, 11. Accommodating groove, 12. Protective plate, 13. Positioning groove, 14. Positioning convex ring, 15. Slot, 16. Positioning groove, 17. Insert, 18. Locking bolt, 19. Sealing ring, 20. Control valve, 21. Flow meter. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0032] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0033] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0034] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] Example, see Figures 1 to 3 , which is an embodiment of the utility model, proposes a device for plugging air leakage along the goaf-retaining lane in a mine, including a shell 1, an adjusting barrel 2, and an adjusting rod 3. The shell 1 has an air inlet 4 and an air outlet 5, and the length direction of the air outlet 5 is arranged along the length direction of the shell 1; the adjusting barrel 2 is rotatably arranged inside the shell 1 and is coaxially arranged with the shell 1. The length of the adjusting barrel 2 is greater than or equal to the length of the air outlet 5. The inlet end of the adjusting barrel 2 faces the air inlet 4 and is connected with the air inlet 4. An adjusting notch 6 is provided on the side wall of the adjusting barrel 2; the adjusting rod 3 is rotatably arranged on the shell 1 and is coaxially arranged with the shell 1. The inner end of the adjusting rod 3 is connected to the end of the adjusting barrel 2 away from the air inlet 4, and the outer end of the adjusting rod 3 is flush with the outer wall of the shell 1 or located outside it. After the adjusting rod 3 is rotated, the adjusting notch 6 is used to connect or separate with the air outlet 5.

[0036] In this embodiment, the regulating barrel 2 is a circular barrel. For example, the air inlet 4 is located at the left end of the housing 1. The left end of the regulating barrel 2 is the entrance end and is connected to the air inlet 4. The outer wall of the regulating barrel 2 contacts the inner wall of the housing 1. The left end of the regulating rod 3 is connected to the right end of the regulating barrel 2, and the right end of the regulating rod 3 is flush with or located outside the outer wall of the right end of the housing 1. The length of the adjusting notch 6 is arranged in the left-right direction. When the operator rotates the adjusting rod 3, the adjusting rod 3 acts as a power transmission component, driving the regulating barrel 2 to rotate. The adjusting notch 6 on the side wall of the regulating barrel 2 changes position as the regulating barrel 2 rotates. After adjustment, the adjusting rod 3 is locked in its current position. When the adjusting notch 6 completely overlaps with the air outlet 5, the air outlet 5 is in maximum ventilation. At this time, air can flow smoothly from the air inlet 4 through the adjusting notch 6 of the regulating barrel 2 to the air outlet 5. When the regulating barrel 2 rotates so that the adjusting notch 6 partially overlaps with the air outlet 5, the ventilation area of ​​the air outlet 5 decreases, and the air velocity and air volume are correspondingly reduced. When the regulating barrel 2 rotates until the regulating notch 6 is completely separated from the air outlet 5, the air outlet 5 is sealed by the barrel wall of the regulating barrel 2, and air cannot flow out of the air outlet 5. By precisely controlling the relative position of the regulating notch 6 and the air outlet 5, the air volume of the air outlet 5 can be flexibly adjusted, avoiding the problem of excessive or insufficient air volume caused by the fixed width of the air outlet 5. This can improve ventilation efficiency and quality, enhance the adaptability and flexibility of the device, and ensure safe production in mines.

[0037] Further, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, it also includes a positioning plate 7, an elastic member 8, and a positioning sleeve 9. The positioning plate 7 is arranged at the outer end of the adjusting rod 3 and is coaxially arranged therewith. The circumferential surface of the positioning plate 7 has a positioning protrusion 10. The number of the positioning protrusions 10 is multiple, and all the positioning protrusions 10 are arranged along the circumferential direction of the positioning plate 7; the elastic member 8 is provided on the housing 1 and is located outside the positioning plate 7; the positioning sleeve 9 is provided on the elastic member 8 and is located between the elastic member 8 and the positioning plate 7. The positioning protrusion 10 is used to be connected or separated with the positioning sleeve 9.

[0038] The positioning disk 7 is coaxially arranged with the outer end of the adjustment rod 3, and multiple positioning protrusions 10 on its circumferential surface are arranged along the circumferential direction. When the air volume of the air outlet 5 does not need to be adjusted, one of the positioning protrusions 10 on the positioning disk 7 engages with the positioning sleeve 9. When the air volume of the air outlet 5 needs to be adjusted, the positioning sleeve 9 is pressed to move the positioning sleeve 9 away from the positioning disk 7 until the positioning sleeve 9 separates from the positioning protrusion 10. At this time, the elastic member 8 is compressed, and then the adjustment rod 3 is rotated to rotate the adjustment notch 6 on the adjustment barrel 2 to the appropriate position. The positioning disk 7 rotates synchronously with the adjustment rod 3. After adjustment, the positioning sleeve 9 is released, and the elastic member 8 stretches and returns to its original length. Under the action of the elastic member 8, the positioning sleeve 9 moves toward the positioning disk 7, so that the positioning protrusion 10 on the positioning disk 7 engages with the positioning sleeve 9, locking the adjustment rod 3 in the current position, thereby locking the adjustment barrel 2 in the current position. This can improve the stability and accuracy of air volume adjustment. In the complex working environment of the mine, it can effectively avoid the position change of the adjustment rod 3 due to factors such as equipment vibration and accidental collision by personnel, ensure that the air volume of the air outlet 5 always meets the set requirements, ensure the stable operation of the device, and reduce the potential impact of air volume fluctuations on safe production.

[0039] Further, such as Figure 3 and Figure 4 As shown, the outer wall of the housing 1 has a receiving groove 11, and the positioning plate 7, elastic member 8 and positioning sleeve 9 are all located in the receiving groove 11. Placing the positioning plate 7, elastic member 8 and positioning sleeve 9 in the receiving groove 11 on the outer wall of the right end of the housing 1 makes the structure more compact and the appearance more neat, reducing the space occupied by the outer surface of the housing 1. At the same time, it also provides a certain degree of protection for these components, preventing them from being directly exposed to the outside and damaged by collisions, thereby improving the reliability and service life of the device.

[0040] Further, such as Figure 1 、 Figure 3 and Figure 5 As shown, the housing 1 also includes a protective plate 12, which is mounted on the outside of the positioning plate 7 and is detachably connected to the housing 1. Protective plate 12 is located outside the positioning plate 7. When the air volume at the air outlet 5 needs to be adjusted, the protective plate 12 is removed and the adjustment lever 3 is rotated. After adjustment, the protective plate 12 is then installed on the housing 1. Protective plate 12 primarily protects internal components such as the positioning plate 7, elastic member 8, and positioning sleeve 9, preventing dust and debris from entering and affecting normal operation.

[0041] Further, such as Figure 3 、 Figure 4 and Figure 5As shown, the outer side of the housing 1 has an annular positioning groove 13, which is located outside the receiving groove 11. The inner side of the protective plate 12 has a positioning protrusion 14, which is plugged into the positioning groove 13. The plug-in cooperation between the positioning protrusion 14 and the positioning groove 13 outside the receiving groove 11 can further improve the sealing effect and also play a role in plug-in positioning.

[0042] Further, such as Figure 3 、 Figure 4 and Figure 5 As shown, the outer side of the housing 1 has a slot 15 and a positioning groove 16, both of which are located outside the positioning groove 13. The inner side of the protective plate 12 has an insert 17, which is plugged into the slot 15. The insert 17 also includes a locking bolt 18, the inner end of which passes through the protective plate 12 and is threadedly connected to the positioning groove 16. There are at least three locking bolts 18, and all locking bolts 18 are evenly arranged around the axis of the protective plate 12. The insertion of the insert 17 into the slot 15 can play a positioning role, preventing relative rotation between the protective plate 12 and the housing 1. After the protective plate 12 and the housing 1 are plugged together, the locking bolt 18 is used to lock the protective plate 12 and the housing 1 together. The structure is simple, the connection is firm and reliable, and the disassembly and assembly are convenient and quick, saving time and effort.

[0043] Further, such as Figure 1 、 Figure 2 and Figure 3 As shown, a sealing ring 19 is also included. The sealing ring 19 is arranged on the periphery of the adjusting rod 3 and is located between the adjusting rod 3 and the adjusting barrel 2 to prevent gas from leaking from the connection between the adjusting rod 3 and the adjusting barrel 2, thereby ensuring the sealing of the device.

[0044] Further, such as Figure 3 As shown, the regulating barrel 2 has an external positioning groove, and the outer side of the sealing ring 19 is engaged with the external positioning groove, which can limit the outer side of the sealing ring 19 and prevent the sealing ring 19 from shifting along the axial direction of the regulating barrel 2, thereby further improving the sealing effect.

[0045] Furthermore, the adjusting rod 3 has an inner positioning groove, and the inner side of the sealing ring 19 is engaged with the inner positioning groove. The inner side of the sealing ring 19 can be limited to prevent the sealing ring 19 from deviating along the axial direction of the adjusting rod 3, which can further improve the sealing effect.

[0046] Further, such as Figure 1As shown, the device further includes a regulating valve 20 and a flow meter 21. The regulating valve 20 is located outside the housing 1; the flow meter 21 is connected between the regulating valve 20 and the air inlet 4. The regulating valve 20 is located outside the housing 1 and is used to further fine-tune the air volume entering the housing 1. The flow meter 21 is connected between the regulating valve 20 and the air inlet 4. By detecting the gas flow at the air inlet 4, it provides real-time flow data to the operator, so that the air volume can be accurately adjusted through the regulating valve 20 according to actual needs, meeting the precise ventilation requirements in different areas and working conditions of the mine. This can improve the intelligence and controllability of the device and ensure safe production and efficient operation of the mine.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A device for plugging air leakage in a mine gob-side lane, characterized by: include, A housing (1), the housing (1) having an air inlet (4) and an air outlet (5), the length direction of the air outlet (5) being arranged along the length direction of the housing (1); an adjusting barrel (2), the adjusting barrel (2) being rotatably disposed inside the shell (1) and being coaxially disposed with the shell (1), the length of the adjusting barrel (2) being greater than or equal to the length of the air outlet (5), the inlet end of the adjusting barrel (2) facing the air inlet (4) and being in communication with the air inlet (4), and an adjusting notch (6) being provided on a side wall of the adjusting barrel (2); An adjusting rod (3) is rotatably arranged on the shell (1) and is coaxially arranged with the shell (1). The inner end of the adjusting rod (3) is connected to the end of the adjusting barrel (2) away from the air inlet (4). The outer end of the adjusting rod (3) is flush with the outer wall of the shell (1) or is located outside the outer wall. After the adjusting rod (3) is rotated, the adjusting notch (6) is used to connect with or separate from the air outlet (5).

2. The device for plugging air leakage in a mine gob-side entry according to claim 1, characterized in that: Also includes, A positioning plate (7), the positioning plate (7) being arranged at the outer end of the adjusting rod (3) and being coaxial therewith, the positioning plate (7) having a positioning protrusion (10) on its circumferential surface, the positioning protrusion (10) being in a plurality, and all the positioning protrusions (10) being arranged along the circumferential direction of the positioning plate (7); An elastic member (8), the elastic member (8) being arranged on the housing (1) and located outside the positioning plate (7); A positioning sleeve (9) is provided on the elastic member (8) and is located between the elastic member (8) and the positioning plate (7); the positioning protrusion (10) is used for plugging into or separating from the positioning sleeve (9).

3. The device for plugging air leakage in a mine gob-side entry according to claim 2, characterized in that: An accommodating groove (11) is provided on the outer wall of the housing (1), and the positioning plate (7), the elastic member (8) and the positioning sleeve (9) are all located in the accommodating groove (11).

4. The device for plugging air leakage in a mine gob-side entry according to claim 3 is characterized in that: It also includes a protective plate (12), which is arranged on the housing (1) and located outside the positioning plate (7), and the protective plate (12) and the housing (1) are detachably connected.

5. The device for plugging air leakage in a mine gob-side entry according to claim 4, characterized in that: The outer side of the housing (1) has an annular positioning groove (13), and the positioning groove (13) is located outside the accommodating groove (11). The inner side of the protective plate (12) has a positioning convex ring (14), and the positioning convex ring (14) is plugged into the positioning groove (13).

6. The device for plugging air leakage in a gob-side entryway of a mine according to claim 5, characterized in that: The outer side of the shell (1) has a slot (15) and a positioning slot (16), and the slot (15) and the positioning slot (16) are both located outside the positioning groove (13). The inner side of the protective plate (12) has an insert block (17), and the insert block (17) is plugged into the slot (15). It also includes a locking bolt (18), and the inner end of the locking bolt (18) passes through the protective plate (12) and is threadedly connected to the positioning slot (16). The number of the locking bolts (18) is at least three, and all the locking bolts (18) are evenly arranged around the axis of the protective plate (12).

7. The device for plugging air leakage in a mine gob-side entry according to claim 1, characterized in that: It also includes a sealing ring (19), which is arranged on the periphery of the regulating rod (3) and located between the regulating rod (3) and the regulating barrel (2).

8. The device for plugging air leakage in a gob-side entryway of a mine according to claim 7, characterized in that: The regulating barrel (2) is provided with an external positioning groove, and the outer side of the sealing ring (19) is engaged with the external positioning groove.

9. The device for plugging air leakage in a mine gob-side entry according to claim 7, characterized in that: The regulating rod (3) is provided with an inner positioning groove, and the inner side of the sealing ring (19) is engaged with the inner positioning groove.

10. The device for plugging air leakage in a mine gob-side entry according to claim 1, characterized in that: Also includes, a regulating valve (20), the regulating valve (20) being located outside the housing (1); A flow meter (21), the flow meter (21) is connected between the regulating valve (20) and the air inlet (4).

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