Engineering blast hole plugging device

Abstract

The utility model discloses an engineering blast hole plugging device which comprises a fixing disc, a plurality of integrated bolts are connected to the fixing disc in a threaded mode, the bolts are distributed in an annular array mode, and a limiting assembly is further arranged on the fixing disc and used for preventing the bolts from loosening. The limiting assembly comprises a control cover plate, the bottom of the control cover plate is rotationally connected to the top of the fixing disc, and a sliding groove corresponding to the bolt is formed in the bottom of the control cover plate. According to the utility model, the design structure is reasonable, the fixed disc is fixed through the integrated bolts, and then the plurality of limiting plates corresponding to the bolts are arranged at the bottom of the control cover plate, so that when the control cover plate is rotated, the plurality of limiting plates are simultaneously driven to rotate together; and the initially staggered limiting plates move to the tops of the bolts to limit the bolts to move in the axial direction, so that the bolts are extruded and fixed, the bolts are prevented from loosening, and the problem that the fixing disc dismounting and mounting efficiency is low due to the fact that multiple existing limiting plates are independently controlled is solved.

Description

Technical Field

[0001] This utility model relates to the field of blast hole sealing technology, specifically an engineering blast hole sealing device. Background Technology

[0002] Blasting technology is used in large-scale projects such as railways, mines, and reservoirs. In order to prevent the powerful impact of the blast from blowing out the debris and causing damage to the surrounding personnel or equipment, several bolts are usually used to fix the fixed plate for sealing. However, due to the impact of the blast shock wave, the bolts are very easy to loosen, causing the fixed plate to fly away.

[0003] Chinese utility model patent with publication number CN221630561U discloses a blasting hole sealing device for engineering blasting. The device uses multiple bolts to fix a fixed plate, and limit grooves are made on the bolts. Limit plates are set on the fixed plate. After the bolts are fixed, the limit plates are inserted into the bolts from the side to prevent the bolts from loosening. However, since there are multiple bolts and each limit plate is controlled individually, the bolts are always pressed against the plate by the spring force, which makes it very inconvenient to disassemble and install the bolts, resulting in low efficiency in disassembling and installing the fixed plate. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an engineering blast hole sealing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An engineering blast hole sealing device includes a fixed plate with several integral bolts threaded onto it. The bolts are arranged in a ring array. The fixed plate is also provided with a limit component to prevent the bolts from loosening.

[0007] The limiting assembly includes a control cover plate, the bottom of which is rotatably connected to the top of the fixed plate, and the bottom of the control cover plate has a groove corresponding to the bolt.

[0008] The inner side of the slide is slidably connected with a limiting plate corresponding to the bolt. Each limiting plate has an elastic component at its top for pushing it down to reset. When the bolt is restricted, the limiting plate is rotated to the top of the bolt by controlling the cover plate so that the bottom of the limiting plate abuts against the top of the bolt to restrict the bolt from loosening.

[0009] Furthermore, the top of the control cover plate has a first opening corresponding to the bolt, and the outer edge of the bottom of the control cover plate has a gap with the top of the fixed plate to form a channel. Both the first opening and the channel are connected to the slide groove for twisting and rotating the bolt from the top or side.

[0010] Furthermore, a second opening corresponding to the first opening is provided in the middle of the limiting plate, and ramps are provided on both sides of the second opening.

[0011] Furthermore, the elastic component includes an elastic element and a groove formed on the side of the limiting plate, with the elastic element disposed between the limiting plate and the inner top wall of the slide groove.

[0012] The inner side of the chute has a protrusion that slides in connection with the groove, which is used to control the cover plate to drive the limiting plate to rotate.

[0013] Furthermore, a reinforcing component is provided on the side of the fixed plate away from the control cover to fix the fixed plate.

[0014] The reinforcement component includes a plurality of first rotating shafts arranged in a ring array. One end of each of the plurality of first rotating shafts is rotatably connected to a fixed disk. The end of each of the plurality of first rotating shafts away from the fixed disk is fixedly connected to a reinforcement plate, which is arc-shaped.

[0015] The first rotating shaft is connected to the fixed disk at one end and is equipped with a control structure to control several reinforcing plates to rotate and abut against the inner wall of the blast hole.

[0016] The control structure is also equipped with a locking structure to lock and fix the rotation of the first rotating shaft.

[0017] Furthermore, the control structure includes a first chamber located inside the fixed disk, a first rotating shaft extending from one end away from the reinforcing plate into the first chamber, and a first gear fixedly connected to one end of several first rotating shafts located inside the first chamber. Several first gears are arranged in a ring array and mesh with the outer side of a first gear ring. The top and bottom of the first gear ring are rotatably connected to the top and bottom of the first chamber, respectively. A second gear is meshed with the inner side of the first gear ring. A second rotating shaft is fixedly connected to the top of the second gear. The top end of the second rotating shaft extends through the fixed disk to the side near the control cover plate for driving the control reinforcing plate to rotate.

[0018] Furthermore, a connecting structure is provided on the side of the second rotating shaft near the top, and one side of the connecting structure is connected to the bottom of the control cover plate so that the control cover plate drives the second rotating shaft to rotate.

[0019] The connecting structure includes a ring-shaped third gear, the inner side of which is fixedly sleeved on the outer side of the second rotating shaft, and the outer side of the third gear is meshed with a second toothed ring, the top of which is fixedly connected to the bottom of the control cover plate.

[0020] Furthermore, the locking structure includes a first control ring, the bottom of which is fixedly connected to the top of the second rotating shaft. A second control ring is provided on the top of the first control ring, and a lifting assembly is also provided on the second control ring to press the first control ring downwards and fix the first control ring.

[0021] The second control ring and the first control ring are both provided with teeth on the side that are in contact with each other, and the second control ring and the first control ring are meshed together.

[0022] Compared with existing technologies, the blast hole sealing device in this project has the following advantages:

[0023] I. This utility model uses an integrated bolt to fix the fixed plate, and then provides several limiting plates corresponding to the bolt at the bottom of the control cover plate. When the control cover plate is rotated, the limiting plates are rotated together, moving the initially staggered limiting plates to the top of the bolt, restricting the bolt to move along the axial direction, thereby squeezing and fixing the bolt, preventing the bolt from loosening, and solving the problem of low efficiency in disassembling and installing the fixed plate due to the separate control of several limiting plates in the existing system.

[0024] Second, the fixed plate of this utility model is provided with a rotating reinforcing plate on the side away from the control cover plate. After the fixed plate is fixed, the reinforcing plate supports the inner wall of the blast hole inside the blast hole. The auxiliary bolts fix the fixed plate, further reducing the bolt fixing load and improving stability. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a cross-sectional view of the fixed disk in this utility model;

[0027] Figure 3 This is a partial exploded view of the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting plate in this utility model;

[0029] Figure 5 This is a cross-sectional view of the control cover plate in this utility model;

[0030] Figure 6 This is a cross-sectional view of the second rotating shaft in this utility model.

[0031] In the diagram: 1. Fixed plate; 2. Bolt; 3. Control cover plate; 4. Limiting plate; 5. Reinforcing plate; 6. First rotating shaft; 7. First chamber; 8. First gear; 9. First gear ring; 10. Second gear; 11. Second rotating shaft; 12. Third gear; 13. First control ring; 14. Second control ring; 15. Second gear ring. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] like Figure 1-6 As shown, this utility model provides a technical solution: an engineering blast hole sealing device, including a fixed plate 1, on which a plurality of integral bolts 2 are threadedly connected, the plurality of bolts 2 being distributed in a ring array, and a limiting component is also provided on the fixed plate 1 to prevent the bolts 2 from loosening; the limiting component includes a control cover plate 3, the bottom of the control cover plate 3 being rotatably connected to the top of the fixed plate 1, and the bottom of the control cover plate 3 having a groove corresponding to the bolt 2; a limiting plate 4 corresponding to the bolt 2 is slidably connected to the inner side of the groove, and the top of each limiting plate 4 is provided with an elastic component for pushing downward to reset; when restricting the bolt 2, the limiting plate 4 is rotated to the top of the bolt 2 by the control cover plate 3, so that the bottom of the limiting plate 4 abuts against the top of the bolt 2, thereby restricting the bolt 2 from loosening.

[0034] In use, there are four bolts 2, which are connected to the fixed plate 1 in a ring array. The fixed plate 1 is installed and fixed. The groove is ring-shaped and corresponds to the ring of the bolt 2 ring array, covering the bolt 2. After the fixed plate 1 is installed and fixed by the bolts 2, the control cover plate 3 is rotated, which simultaneously drives several limit plates 4 to rotate. The limit plates 4 are moved to the top of the bolt 2, so that the top of the bolt 2 and the limit plates 4 are in contact. Under the push of the elastic component, the limit plates 4 hold the end of the bolt 2, restricting the bolt 2 from moving up and down and preventing the bolt 2 from moving along the axis, thereby preventing the bolt 2 from loosening. Then, when it is necessary to disassemble the bolt 2, the control cover plate 3 is rotated again, which drives several limit plates 4 to rotate simultaneously, staggering them from the bolt 2 below, so as to facilitate the rotation and disassembly of the bolt 2.

[0035] The top of the control cover plate 3 has a first opening corresponding to the bolt 2. The outer edge of the bottom of the control cover plate 3 has a gap with the top of the fixing plate 1 to form a channel. Both the first opening and the channel are connected to the slide groove for twisting and rotating the bolt 2 from the top or side. When it is necessary to remove or install the bolt 2, the control cover plate 3 is rotated to move the first opening above the bolt 2, so that the operator can use tools to rotate the top of the bolt 2 from the top and bottom through the first opening to remove the bolt 2. Alternatively, the bolt 2 can be clamped from the side through the channel between the outer edge of the control cover plate 3 and the edge of the fixing plate 1 to remove it, thereby improving the efficiency of installation or removal.

[0036] The limiting plate 4 has a second opening in the middle corresponding to the first opening, and ramps are provided on both sides of the second opening. In use, rotating the control cover plate 3 further drives the limiting plate 4 to rotate. In the initial state, the height of the top of the bolt 2 is adapted to the height of the middle part of the ramp on the limiting plate 4. The bolt 2 contacts the top of the bolt through the ramp. Then, the control cover plate 3 continues to rotate, so that the bolt 2 pushes the limiting plate 4 to slide upward through the ramp, squeezing the elastic component. This allows the limiting plate 4 to squeeze and fix the bolt 2 downward when it moves to the top of the bolt 2, eliminating the processing error between the limiting plate 4 and the bolt 2 and reducing the precision requirements.

[0037] The elastic component includes an elastic element and a groove formed on the side of the limiting plate 4. The elastic element is disposed between the limiting plate 4 and the inner top wall of the slide groove. A protrusion is provided on the inner side of the slide groove, which is slidably connected to the groove to control the cover plate 3 to drive the limiting plate 4 to rotate. In use, there are four bolts 2 and four limiting plates 4, all of which are quarter-circular rings. The width between the outer arc and the inner side of the limiting plate 4 is greater than the width of the bottom opening of the slide groove to prevent the limiting plate 4 from sliding down and falling. When the cover plate 3 is controlled to rotate, the cover plate 3 drives the protrusion to rotate, and the protrusion inserts into the limiting plate on the side. Within the groove of 4, the limiting plate 4 is driven to rotate. After the ramp contacts the bolt 2, the limiting plate 4 continues to rotate, causing the limiting plate 4 to squeeze the elastic element, deforming the elastic element, and simultaneously causing the limiting plate 4 to move upward, and then rotate to the top of the bolt 2. The elastic element can be made of silicone, rubber, or other materials, and its interior is further provided with circular holes or cavities along the horizontal direction so that it can deform under the thrust, causing the limiting plate 4 to move upward slightly, making it easier for the limiting plate 4 to hold the bolt 2, improving the limiting effect, and eliminating the machining error between the bolt 2 and the limiting plate 4; a spring can also be used.

[0038] A reinforcing component is provided on the side of the fixed disk 1 away from the control cover plate 3 to fix the fixed disk 1. The reinforcing component includes a plurality of first rotating shafts 6 arranged in a ring array. One end of each of the plurality of first rotating shafts 6 is rotatably connected to the fixed disk 1. A reinforcing plate 5 is fixedly connected to the end of each of the plurality of first rotating shafts 6 away from the fixed disk 1. The reinforcing plate 5 is arc-shaped. A control structure is provided at the end of the first rotating shaft 6 connected to the fixed disk 1 to control the rotation of the plurality of reinforcing plates 5 against the inner wall of the blast hole. A locking structure is also provided on the control structure to lock and fix the rotation of the first rotating shaft 6.

[0039] In use, several arc-shaped reinforcing plates 5 form a ring. Through the control structure, several first rotating shafts 6 rotate simultaneously. The first rotating shafts 6 further rotate the reinforcing plates 5 until they press against the inner wall of the blast hole. Then, the first rotating shafts 6 are locked by the locking structure, so that the reinforcing plates 5 are supported inside the blast hole, and the fixing plate 1 is further fixed.

[0040] The control structure includes a first chamber 7 located inside the fixed disk 1. A first rotating shaft 6 extends into the first chamber 7 from one end away from the reinforcing plate 5. Several first rotating shafts 6 are fixedly connected to one end of each other inside the first chamber 7, with the first gears 8 arranged in a ring array and meshing with the outer side of a first gear ring 9. The top and bottom of the first gear ring 9 are rotatably connected to the top and bottom of the first chamber 7, respectively. A second gear 10 is meshed with the inner side of the first gear ring 9. A second rotating shaft 11 is fixedly connected to the top of the second gear 10. The end extends through the fixed plate 1 to the side near the control cover plate 3, and is used to drive the control reinforcement plate 5 to rotate. In use, the second rotating shaft 11 is rotatably connected to the fixed plate 1. By rotating the second rotating shaft 11, the second rotating shaft 11 drives the second gear 10 to rotate. The second gear 10 further drives the first gear ring 9 to rotate, which in turn drives several first gears 8 to rotate. The first gears 8 drive the corresponding first rotating shaft 6 to rotate, thereby rotating the reinforcement plate 5 towards the inner wall of the blast hole, so that the reinforcement plate 5 supports and fixes the inner wall of the blast hole.

[0041] A connecting structure is provided on the side of the second rotating shaft 11 near the top. One side of the connecting structure is connected to the bottom of the control cover plate 3 so that the control cover plate 3 drives the second rotating shaft 11 to rotate. The connecting structure includes a ring-shaped third gear 12. The inner side of the third gear 12 is fixedly sleeved on the outer side of the second rotating shaft 11. The outer side of the third gear 12 is meshed with a second gear ring 15. The top of the second gear ring 15 is fixedly connected to the bottom of the control cover plate 3. In use, by rotating the control cover plate 3, the control cover plate 3 drives the second gear ring 15 to rotate. The second gear ring 15 is rotatably connected to the fixed disk 1, and at the same time drives the inner third gear 12 to rotate. The third gear 12 further drives the second rotating shaft 11 to rotate, thereby driving the reinforcing plate 5 to rotate.

[0042] The locking structure includes a first control ring 13, the bottom of which is fixedly connected to the top of the second rotating shaft 11. A second control ring 14 is provided on the top of the first control ring 13, and a lifting assembly is also provided on the second control ring 14 so that the second control ring 14 presses the first control ring 13 downward to press and fix the first control ring 13. The sides of the second control ring 14 and the first control ring 13 that are in contact with each other are provided with teeth, and the second control ring 14 and the first control ring 13 are meshed and connected.

[0043] In use, the top of the fixed disk 1 is provided with a second chamber, and the third gear 12 and the second gear ring 15 are both located inside the second chamber. The lifting assembly includes a threaded rod, a limiting rod, and a positioning ring. The bottom of the limiting rod is rotatably connected to the top of the fixed disk 1, and the bottom of the limiting rod is fixedly connected to the top of the fixed disk 1. The positioning ring is threadedly connected to the threaded rod and slidably connected to the limiting rod. When the threaded rod rotates, it moves up and down along the axis of the threaded rod. At the same time, a positioning rod is threadedly connected to the positioning ring, and the bottom of the positioning rod is fixedly connected to the second control ring 14. Under the drive of the positioning ring, the second control ring 14 is further driven to move up and down, pressing the second control ring 14 against the top of the first control ring 13. When the second control ring 14 and the first control ring 13 just cannot mesh, the positioning rod is further rotated, so that the positioning rod moves up and down relative to the positioning ring. At the same time, the rotation of the positioning rod drives the second control ring 14 to rotate, so that the second control ring 14 and the first control ring 13 mesh, limiting and locking the first control ring 13.

Claims

1. A device for sealing engineering blast holes, characterized in that: Includes a fixed plate (1), on which a plurality of integral bolts (2) are threadedly connected, and the plurality of bolts (2) are arranged in a ring array. The fixed plate (1) is also provided with a limit component to prevent the bolts (2) from loosening. The limiting component includes a control cover plate (3), the bottom of which is rotatably connected to the top of the fixed plate (1), and the bottom of the control cover plate (3) is provided with a groove corresponding to the bolt (2). The inner side of the groove is slidably connected to a limiting plate (4) corresponding to the bolt (2). Each limiting plate (4) is provided with an elastic component for pushing down to reset. When the bolt (2) is restricted, the limiting plate (4) is rotated to the top of the bolt (2) by the control cover plate (3) so that the bottom of the limiting plate (4) abuts against the top of the bolt (2) to restrict the bolt (2) from loosening.

2. The engineering blasting hole sealing device according to claim 1, characterized in that: The top of the control cover plate (3) is provided with a first opening corresponding to the bolt (2). The outer edge of the bottom of the control cover plate (3) has a gap with the top of the fixing plate (1) to form a channel. The first opening and the channel are both connected to the slide groove for twisting and rotating the bolt (2) from the top or side.

3. The engineering blasting hole sealing device according to claim 2, characterized in that: The limiting plate (4) has a second opening in the middle that corresponds to the first opening, and slopes are provided on both sides of the second opening.

4. The engineering blast hole sealing device according to claim 1, characterized in that: The elastic component includes an elastic element and a groove formed on the side of the limiting plate (4), and the elastic element is disposed between the limiting plate (4) and the inner top wall of the groove; The inner side of the groove is provided with a protrusion, which is slidably connected to the groove and is used by the control cover plate (3) to drive the limiting plate (4) to rotate.

5. The engineering blasting hole sealing device according to claim 1, characterized in that: A reinforcing component is provided on the side of the fixed plate (1) away from the control cover plate (3) to fix the fixed plate (1); The reinforcement component includes a plurality of first rotating shafts (6) arranged in a ring array. One end of each of the plurality of first rotating shafts (6) is rotatably connected to the fixed disk (1). A reinforcement plate (5) is fixedly connected to the end of each of the plurality of first rotating shafts (6) away from the fixed disk (1). The reinforcement plate (5) is arc-shaped. The first rotating shaft (6) is connected to the fixed disk (1) at one end and is provided with a control structure for controlling the rotation of several of the reinforcing plates (5) to abut against the inner wall of the blast hole; The control structure is also provided with a locking structure for locking and fixing the rotation of the first rotating shaft (6).

6. The engineering blast hole sealing device according to claim 5, characterized in that: The control structure includes a first chamber (7) opened inside the fixed plate (1), one end of the first rotating shaft (6) away from the reinforcing plate (5) extends into the first chamber (7), and one end of several first rotating shafts (6) located inside the first chamber (7) is fixedly connected to a first gear (8), and several first gears (8) are distributed in a ring array and mesh with the outside of the first gear ring (9). The top and bottom of the first toothed ring (9) are rotatably connected to the top and bottom of the first chamber (7), respectively. The inner side of the first toothed ring (9) is meshed with a second gear (10). The top of the second gear (10) is fixedly connected to a second rotating shaft (11). The top end of the second rotating shaft (11) extends through the fixed disk (1) to the side near the control cover plate (3) for driving the control reinforcement plate (5) to rotate.

7. The engineering blast hole sealing device according to claim 6, characterized in that: The second rotating shaft (11) is provided with a connecting structure on one side near the top, and one side of the connecting structure is connected to the bottom of the control cover plate (3) so that the control cover plate (3) drives the second rotating shaft (11) to rotate. The connection structure includes a ring-shaped third gear (12), the inner side of which is fixedly sleeved on the outer side of the second rotating shaft (11), and the outer side of the third gear (12) is meshed with a second toothed ring (15), the top of which is fixedly connected to the bottom of the control cover plate (3).

8. The engineering blast hole sealing device according to claim 7, characterized in that: The locking structure includes a first control ring (13), the bottom of which is fixedly connected to the top of the second rotating shaft (11). A second control ring (14) is provided on the top of the first control ring (13), and a lifting assembly is also provided on the second control ring (14) so ​​that the second control ring (14) presses the first control ring (13) downward to press and fix the first control ring (13). The second control ring (14) and the first control ring (13) are both provided with teeth on the side that are in contact with each other, and the second control ring (14) and the first control ring (13) are meshed together.

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