A reinforcement sealing device for a mine blasting wellhead

Abstract

The utility model relates to the technical field of mine blasting, and discloses a reinforcement sealing device for a wellhead for mine blasting, comprising a sealing cover, a fixing box is fixedly connected to the middle end of the bottom of the sealing cover, and a sealing ring is fixedly connected to the bottom of the sealing cover and located outside the fixing box. The reinforcement sealing device for the wellhead for mine blasting can buffer the impact force generated by the blasting by deforming and squeezing the buffer pad upward under the influence of the impact force, and at the same time, the buffer pad drives the movable plate to move upward through the buffer plate and the connecting column, and the movable plate drives the damping shock absorber and the first buffer spring to deform and squeeze upward, which can buffer the impact force generated by the blasting for the second time, and while the movable plate moves upward, the sliding block is driven to move inward through the connecting rod, and the sliding block drives the second buffer spring to deform and squeeze inward, so as to absorb and disperse the impact force generated by the blasting, and significantly reduce the direct impact of the blasting shock wave.

Description

Technical Field

[0001] The utility model relates to the technical field of mine blasting, in particular to a reinforcement sealing device for a wellhead of mine blasting. Background Art

[0002] Blasting in mines is undoubtedly an indispensable key technical operation in the field of coal mining. Its essence lies in accurately selecting blasting points in underground rock formations, and then using the powerful energy released by the explosion of explosives to effectively break hard rocks, thereby creating the necessary working space for mine excavation and mining. The effective implementation of this technology is of great significance to the safe production and efficiency improvement of mines. When implementing blasting operations, a series of strict safety regulations must be strictly observed, from the selection of blasting points, the type and amount of explosives, to the arrangement of blasting time and the evacuation of personnel. Every link needs to be carefully calculated and carefully deployed. In addition, professional monitoring equipment and technicians are required to ensure the safety and accuracy of the blasting process. Through rigorous operating procedures and strict safety management, we can minimize the risks brought by blasting operations, ensure the smooth progress of mine production, and provide solid technical support for the mining and utilization of coal resources.

[0003] A wellhead reinforcement and sealing device is required for blasting in mines. Although the existing technology has met the user's needs to a certain extent, there are still certain defects in the use process. The specific problems are as follows: the existing wellhead reinforcement and sealing device for blasting in mines lacks a buffering function, which will lead to a series of adverse consequences. First, the safety will be greatly reduced. Because there is no buffering effect, the wellhead is more susceptible to serious damage when it is directly impacted by the blasting shock wave, increasing the risk of wellhead collapse or deformation, thereby threatening the safe production of the mine. Secondly, the wellhead will produce stronger vibrations and shock waves when impacted, causing greater damage to the surrounding environment and facilities, including possible damage to other mine facilities and affecting the stability of surrounding rocks. In addition, the lack of a buffering mechanism will cause the wellhead to be unable to effectively reduce or absorb the vibration and pressure caused by the shock wave when it is impacted by the blasting, which may destroy the integrity of the sealing structure, resulting in a loose seal, increasing the exchange of gases, dust and other substances inside and outside the wellhead, which may cause the leakage of harmful gases or the flying of dust, posing a threat to the mine environment and the health of operators.

[0004] In order to solve the above problems, we have made improvements and proposed a reinforcement sealing device for the wellhead blasted in the mine. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a reinforcement sealing device for a wellhead blasted in a mine, comprising a sealing cover, a fixing box is fixedly connected to the middle end of the bottom of the sealing cover, a sealing ring is fixedly connected to the bottom of the sealing cover and located on the outside of the fixing box, a partition is fixedly connected to the middle end of the inner cavity of the fixing box, the left and right sides of the bottom of the partition are fixedly connected to the fixing blocks, the bottom of the fixing block is fixedly connected to a damping shock absorber, the surface of the damping shock absorber is sleeved with a first buffer spring, the bottom of the damping shock absorber is fixedly connected to a movable plate, the movable plate, the inner side of the fixing block is fixedly connected to a guide rod, the middle end of the surface of the guide rod is sleeved with a second buffer spring, the surface of the guide rod and the left and right sides of the second buffer spring are slidably connected to sliding blocks, the bottom of the sliding block is movably connected to a connecting rod through a rotating shaft, the bottom of the connecting rod is movably connected to the top of the movable plate, the bottom of the movable plate is fixedly connected to a connecting column, the bottom of the connecting column is fixedly connected to a buffer plate, and the bottom of the buffer plate is bonded with a buffer pad.

[0006] Preferably, the top of the inner cavity of the fixing box is movably connected to a screw rod through a bearing, the left and right sides of the screw rod surface are threadedly connected to screw sleeves, the bottom of the screw sleeve is fixedly connected to a connecting rod, and the outer side of the connecting rod passes through the outside of the fixing box.

[0007] Preferably, the outer side of the connecting rod is fixedly connected to a limit plate, the middle end of the outer side of the limit plate is bonded with an anti-slip pad, and the top and bottom of the outer side of the limit plate are fixedly connected to plug blocks.

[0008] Preferably, a sliding block is fixedly connected to the top of the screw sleeve, and sliding grooves are provided on both left and right sides of the top of the inner wall of the sealing ring, and the top of the sliding block is slidably connected to the inner cavity of the sliding groove.

[0009] Preferably, a driven gear is fixedly connected to the middle end of the screw surface, and a driving gear is movably connected to the top of the inner cavity of the sealing ring, and the driving gear is meshed with the driven gear through teeth.

[0010] Preferably, a handwheel is fixedly connected to the top of the driving gear, and the top of the handwheel is movably connected to the top of the sealing cover. A limiting groove is provided on the top of the sealing cover, and a limiting ring is clamped in the inner cavity of the limiting groove, and the inner side of the limiting ring is in contact with the outer side of the handwheel.

[0011] Compared with the prior art, the utility model provides a reinforcement sealing device for a wellhead blasted in a mine, which has the following beneficial effects:

[0012] 1. The reinforced sealing device of the wellhead for blasting in the mine can buffer the impact force generated by the blasting by deforming and squeezing the buffer pad upward under the influence of the impact force. At the same time, the buffer pad drives the movable plate to move upward through the buffer plate and the connecting column, and the movable plate drives the damping shock absorber and the first buffer spring to deform and squeeze upward, which can buffer the impact force generated by the blasting for the second time. While the movable plate moves upward, the sliding block is driven to move inward through the connecting rod, and the sliding block drives the second buffer spring to deform and squeeze inward, so as to absorb and disperse the impact force generated by the blasting, significantly reduce the direct impact of the blasting shock wave, effectively reduce the risk of wellhead collapse or deformation, maintain the stability and safety of the wellhead structure, and at the same time, ensure the durability and reliability of the sealing effect of the sealing cover and the sealing ring, so as to ensure that the wellhead can maintain a good sealing state during the blasting process, which can not only effectively prevent the leakage of harmful gases and dust, ensure the safety of operators, but also improve the overall efficiency of the blasting operation.

[0013] 2. The reinforced sealing device of the wellhead blasted in the mine drives the screw sleeve to move outward by utilizing the effect of the thread during the rotation of the screw rod. The screw sleeve drives the limit plate to move outward through the connecting rod, so that the outer side of the anti-slip pad contacts the well wall, and the outer side of the plug block is inserted into the well wall, thereby improving the overall support effect and further improving the overall sealing effect during use. By setting a limit ring and a limit groove, the hand wheel can be limited within a certain range, further improving the overall support effect. By setting a slider and a slide groove, the stability of the screw sleeve during horizontal movement can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 It is a partial cross-sectional structural schematic diagram of the fixing box of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the sealing cover when the limit ring of the utility model is in a disassembled state.

[0019] Among them: 1. Sealing cover; 2. Sealing ring; 3. Fixed box; 4. Connecting column; 5. Buffer plate; 6. Buffer pad; 7. Limit plate; 8. Anti-skid pad; 9. Insert block; 10. Hand wheel; 11. Limit ring; 12. Driving gear; 13. Screw; 14. Screw sleeve; 15. Connecting rod; 16. Sliding block; 17. Slide groove; 18. Driven gear; 19. Partition; 20. Fixed block; 21. Movable plate; 22. Damping shock absorber; 23. First buffer spring; 24. Guide rod; 25. Sliding block; 26. Second buffer spring; 27. Connecting rod; 28. Limit groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 A reinforced sealing device for a wellhead for blasting in a mine, comprising a sealing cover 1, a fixing box 3 is fixedly connected to the middle end of the bottom of the sealing cover 1, a sealing ring 2 is fixedly connected to the bottom of the sealing cover 1 and located outside the fixing box 3, a partition 19 is fixedly connected to the middle end of the inner cavity of the fixing box 3, a fixing block 20 is fixedly connected to the left and right sides of the bottom of the partition 19, a damping shock absorber 22 is fixedly connected to the bottom of the fixing block 20, a first buffer spring 23 is sleeved on the surface of the damping shock absorber 22, and a movable plate 21 is fixedly connected to the bottom of the damping shock absorber 22 , the movable plate 21, the inner side of the fixed block 20 is fixedly connected with a guide rod 24, the middle end of the surface of the guide rod 24 is sleeved with a second buffer spring 26, the surface of the guide rod 24 and the left and right sides of the second buffer spring 26 are slidably connected with sliding blocks 25, the bottom of the sliding block 25 is movably connected with a connecting rod 27 through a rotating shaft, the bottom of the connecting rod 27 is movably connected to the top of the movable plate 21, the bottom of the movable plate 21 is fixedly connected with a connecting column 4, the bottom of the connecting column 4 is fixedly connected with a buffer plate 5, and the bottom of the buffer plate 5 is bonded with a buffer pad 6.

[0022] Through the above technical scheme, the buffer pad 6 is deformed and squeezed upward under the influence of the impact force, which can buffer the impact force generated by the blasting. At the same time, the buffer pad 6 drives the movable plate 21 to move upward through the buffer plate 5 and the connecting column 4, and the movable plate 21 drives the damping shock absorber 22 and the first buffer spring 23 to deform and squeeze upward, which can perform a second buffering on the impact force generated by the blasting. While the movable plate 21 moves upward, the sliding block 25 is driven to move inward through the connecting rod 27, and the sliding block 25 drives the second buffer spring 26 to deform and squeeze inward, so as to absorb and disperse the impact force generated by the blasting, significantly reduce the direct impact of the blasting shock wave, effectively reduce the risk of wellhead collapse or deformation, maintain the stability and safety of the wellhead structure, and at the same time, ensure the durability and reliability of the sealing effect of the sealing cover 1 and the sealing ring 2, so as to ensure that the wellhead can maintain a good sealing state during the blasting process, which can not only effectively prevent the leakage of harmful gases and dust, ensure the safety of operators, but also improve the overall efficiency of the blasting operation.

[0023] Specifically, the top of the inner cavity of the fixed box 3 is movably connected with a screw rod 13 through a bearing, and the left and right sides of the surface of the screw rod 13 are threadedly connected with a screw sleeve 14, and the bottom of the screw sleeve 14 is fixedly connected with a connecting rod 15, and the outer side of the connecting rod 15 penetrates to the outside of the fixed box 3, and the outer side of the connecting rod 15 is fixedly connected with a limit plate 7, and the middle end of the outer side of the limit plate 7 is bonded with an anti-slip pad 8, and the top and bottom of the outer side of the limit plate 7 are fixedly connected with an insert block 9, and the top of the screw sleeve 14 is fixedly connected with a slider 16, and the left and right sides of the top of the inner wall of the sealing ring 2 are provided with sliding grooves 17, the top of the slider 16 is slidably connected to the inner cavity of the slide groove 17, the middle end of the surface of the screw 13 is fixedly connected with a driven gear 18, the top of the inner cavity of the sealing ring 2 is movably connected with a driving gear 12, the driving gear 12 and the driven gear 18 are meshed through teeth, the top of the driving gear 12 is fixedly connected with a handwheel 10, the top of the handwheel 10 is movably connected to the top of the sealing cover 1, the top of the sealing cover 1 is provided with a limiting groove 28, the inner cavity of the limiting groove 28 is clamped with a limiting ring 11, and the inner side of the limiting ring 11 is in contact with the outer side of the handwheel 10.

[0024] Through the above technical solution, the screw rod 13 uses the effect of the thread to drive the screw sleeve 14 to move outward during the rotation process, and the screw sleeve 14 drives the limiting plate 7 to move outward through the connecting rod 15, so that the outer side of the anti-slip pad 8 contacts the well wall, and the outer side of the plug block 9 is inserted into the well wall, thereby improving the overall support effect, and further improving the overall sealing effect during use. By setting the limiting ring 11 and the limiting groove 28, the hand wheel 10 can be limited within a certain range, further improving the overall support effect, and by setting the slider 16 and the slide groove 17, the stability of the screw sleeve 14 during horizontal movement can be effectively improved.

[0025] When in use, first install the whole on the top of the wellhead, at this time, the outer side of the sealing ring 2 is in close contact with the well wall, turn the hand wheel 10, the hand wheel 10 drives the active gear 12 to rotate, the active gear 12 drives the driven gear 18 to rotate by the action of tooth meshing, the driven gear 18 drives the screw 13 to rotate, the screw 13 drives the screw sleeves 14 on both sides to move outward at the same time by the action of the opposing threads, the screw sleeve 14 drives the limit plate 7 to move outward through the connecting rod 15, so that the outer side of the anti-skid pad 8 contacts the well wall, and the outer side of the plug block 9 is plugged into the well wall, thereby improving the supporting effect of the whole, and further improving the sealing effect of the whole during use;

[0026] During the blasting process, the buffer pad 6 is deformed and squeezed upward by the impact force, which can buffer the impact force generated by the blasting. At the same time, the buffer pad 6 drives the movable plate 21 to move upward through the buffer plate 5 and the connecting column 4, and the movable plate 21 drives the damping shock absorber 22 and the first buffer spring 23 to deform and squeeze upward, which can provide a second buffer for the impact force generated by the blasting. While the movable plate 21 moves upward, the sliding block 25 is driven to move inward through the connecting rod 27, and the sliding block 25 drives the second buffer spring 26 to deform and squeeze inward, so as to absorb and disperse the impact force generated by the blasting, and significantly reduce the direct impact of the blasting shock wave (the above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field).

[0027] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0028] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A reinforced sealing device for a mine blasting wellhead, comprising a sealing cover (1), characterized in that: The middle end of the bottom of the sealing cover (1) is fixedly connected to a fixing box (3); the bottom of the sealing cover (1) and located outside the fixing box (3) is fixedly connected to a sealing ring (2); the middle end of the inner cavity of the fixing box (3) is fixedly connected to a partition (19); the left and right sides of the bottom of the partition (19) are fixedly connected to fixing blocks (20); the bottom of the fixing block (20) is fixedly connected to a damping shock absorber (22); the surface of the damping shock absorber (22) is sleeved with a first buffer spring (23); the bottom of the damping shock absorber (22) is fixedly connected to a movable plate (21); the movable plate (21) and the fixing block (2 0) is fixedly connected to the inner side of a guide rod (24), a second buffer spring (26) is sleeved on the middle end of the surface of the guide rod (24), a sliding block (25) is slidably connected to the surface of the guide rod (24) and located on the left and right sides of the second buffer spring (26), the bottom of the sliding block (25) is movably connected to a connecting rod (27) through a rotating shaft, the bottom of the connecting rod (27) is movably connected to the top of the movable plate (21), the bottom of the movable plate (21) is fixedly connected to a connecting column (4), the bottom of the connecting column (4) is fixedly connected to a buffer plate (5), and the bottom of the buffer plate (5) is bonded with a buffer pad (6).

2. The reinforced sealing device for a mine blasting wellhead according to claim 1, characterized in that: The top of the inner cavity of the fixing box (3) is movably connected to a screw rod (13) via a bearing, the left and right sides of the surface of the screw rod (13) are both threadedly connected to screw sleeves (14), the bottom of the screw sleeve (14) is fixedly connected to a connecting rod (15), and the outer side of the connecting rod (15) penetrates to the outside of the fixing box (3).

3. The reinforced sealing device for a wellhead for blasting in a mine according to claim 2, characterized in that: The outer side of the connecting rod (15) is fixedly connected to a limiting plate (7), the middle end of the outer side of the limiting plate (7) is bonded with an anti-slip pad (8), and the top and bottom of the outer side of the limiting plate (7) are fixedly connected to plug blocks (9).

4. The reinforced sealing device for a wellhead for blasting in a mine according to claim 2, characterized in that: The top of the screw sleeve (14) is fixedly connected with a slider (16), and the left and right sides of the top of the inner wall of the sealing ring (2) are provided with slide grooves (17), and the top of the slider (16) is slidably connected in the inner cavity of the slide groove (17).

5. The reinforced sealing device for a mine blasting wellhead according to claim 2, characterized in that: The middle end of the surface of the screw rod (13) is fixedly connected to a driven gear (18), and the top of the inner cavity of the sealing ring (2) is movably connected to a driving gear (12), and the driving gear (12) and the driven gear (18) are meshed through teeth.

6. The reinforced sealing device for a mine blasting wellhead according to claim 5, characterized in that: The top of the driving gear (12) is fixedly connected to a hand wheel (10), and the top of the hand wheel (10) is movably connected to the top of the sealing cover (1). The top of the sealing cover (1) is provided with a limiting groove (28), and the inner cavity of the limiting groove (28) is clamped with a limiting ring (11), and the inner side of the limiting ring (11) is in contact with the outer side of the hand wheel (10).

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