Blast hole plugging device

Abstract

The utility model discloses a blasthole plugging device, which belongs to the technical field of blasting and comprises a mounting seat, a plurality of moving grooves are symmetrically arranged on the left end face of the mounting seat, screws are rotatably arranged in the moving grooves, the upper ends of the screws are in threaded connection with moving blocks, and the moving blocks are slidably connected with the moving grooves. A limiting block is slidably arranged at the lower end of the moving block; a center hole is formed in the center of the mounting base, a gear assembly for driving the screw to rotate is arranged in the center hole and fixedly connected with a rotating shaft, the rotating shaft penetrates out of the sealing plug and then is connected with a coupler, and the other end of the coupler is connected with a gear motor; a connecting block is integrally formed at the end, away from the center hole, of the moving block and fixedly connected with a top plate after penetrating out of the inner pipe, and the outer side wall of the top plate abuts against the inner side wall of the sealing plug. The blast hole plugging device can rapidly plug a blast hole, is more convenient to operate and better in plugging effect, improves the blasting efficiency, can be recycled, and reduces the cost.

Description

Technical Field

[0001] This utility model relates to the field of blasting technology, and in particular to a blast hole sealing device. Background Technology

[0002] Explosive hole plugging is a crucial step in blasting operations. Its purpose is to prevent premature gas leakage during explosion, improve the energy utilization rate of the explosive, ensure blasting effectiveness, and reduce hazards such as flyrock, noise, and dust. However, existing manual plugging methods have the following disadvantages compared to mechanical plugging:

[0003] 1) Low efficiency: Manually filling and compacting the sealing material one by one is slow. Especially in large-scale blasting operations or when a large number of blast holes need to be sealed, manual sealing consumes a lot of time and manpower, which affects the construction progress.

[0004] 2) High labor intensity: Manual sealing requires workers to use hand tools, such as tamping the clay with wooden sticks, which is a relatively heavy physical labor. Long hours of work can easily cause worker fatigue, affecting work quality and efficiency, and may also lead to worker injuries.

[0005] 3) Poor stability of sealing quality: The quality of manual sealing depends on the worker's skill level, experience, and work attitude. Different workers may apply different amounts of force and use different filling methods, making it difficult to ensure that the sealing quality of each blast hole is uniform. For example, problems such as incomplete filling of the sealing material, gaps, or insufficient sealing length may occur, thus affecting the blasting effect and safety.

[0006] 4) Greatly affected by environmental factors: In some harsh construction environments, such as high temperature, high altitude, humidity or narrow space, manual sealing operations will be more difficult, and the work efficiency and sealing quality of workers will be more affected.

[0007] Mechanical plugging employs specialized equipment to rapidly press plugging material into blast holes, significantly shortening the plugging time for individual blast holes. In large-scale blasting operations, this can substantially improve overall construction progress and reduce operational time costs. Simultaneously, it helps ensure consistent plugging quality for each blast hole, avoiding inconsistent plugging effects due to variations in manual operation, thereby improving the controllability and safety of the blasting effect. Based on this, this utility model proposes a blast hole plugging device. Utility Model Content

[0008] The purpose of this invention is to provide a blast hole sealing device to solve the problems mentioned above.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] This utility model discloses a blast hole sealing device, including a sealing plug, an inner tube inside the sealing plug, and an opening and closing mechanism inside the inner tube;

[0011] The opening and closing mechanism includes a mounting base. Several movable slots are symmetrically arranged on the left end face of the mounting base. A screw is rotatably mounted within each movable slot. The upper end of the screw is threadedly connected to a movable block, which is slidably connected to the movable slot. A limit block is slidably mounted on the lower end of the movable block. A central hole is provided at the center of the mounting base. A gear assembly for driving the screw to rotate is disposed within the central hole. The gear assembly is fixedly connected to a rotating shaft. The rotating shaft passes through the sealing plug and connects to a coupling. The other end of the coupling is connected to a reduction motor. A connecting block is integrally formed at the end of the movable block away from the central hole. The connecting block passes through the inner tube and is fixedly connected to a top plate. The outer side wall of the top plate abuts against the inner side wall of the sealing plug.

[0012] Furthermore, several annular grooves are formed around the sealing end of the sealing plug.

[0013] Furthermore, the sealing plug is made of rubber.

[0014] Furthermore, the bottom of the movable block is provided with threads.

[0015] Furthermore, the limiting block includes a limiting rod embedded inside the mounting base, and a limiting groove is formed at the upper end of the limiting rod, in which the screw is placed.

[0016] Furthermore, the gear assembly includes a large bevel gear located at the center, and several small bevel gears meshing on the large bevel gear and connected to the screw key.

[0017] Furthermore, the inner tube includes a tube body, on which a plurality of through holes matching the connecting block are formed around the circumference.

[0018] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0019] This utility model of a blast hole sealing device uses an opening and closing mechanism to move a top plate against the sealing plug, ensuring a tight seal between the outer surface of the sealing plug and the blast hole wall. Simultaneously, the sealing plug is made of rubber, providing shock absorption and noise reduction, minimizing vibration and noise between the device and the hole wall during blasting. Furthermore, after the opening and closing mechanism resets the top plate, the sealing plug can be pulled out of the blast hole under external pulling force, allowing for reuse. In summary, this utility model of a blast hole sealing device can quickly seal blast holes, is more convenient to operate, has a high structural strength for the sealing plug, provides better sealing effect, improves blasting efficiency, is reusable, and reduces costs. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the blast hole sealing device of this utility model;

[0022] Figure 2 This is a cross-sectional view of the blast hole sealing device of this utility model;

[0023] Figure 3 This is a schematic diagram of the opening and closing mechanism.

[0024] Figure 4 This is a sectional view of the opening and closing mechanism;

[0025] Figure 5 This is a schematic diagram of the limiting block structure;

[0026] Figure 6 Top view of the gear assembly;

[0027] Figure 7 A schematic diagram of the meshing structure of the small bevel gear and the large bevel gear;

[0028] Figure 8 This is a schematic diagram of the inner tube structure;

[0029] Explanation of reference numerals in the attached diagram: 1. Sealing plug; 2. Coupling; 3. Gear motor; 4. Inner tube; 5. Top plate; 6. Opening and closing mechanism;

[0030] 101. Annular groove;

[0031] 401. Pipe body; 402. Through hole;

[0032] 601. Mounting base; 602. Moving slot; 603. Moving block; 604. Connecting block; 605. Center hole; 606. Screw; 607. Limiting block; 608. Thread; 609. Small bevel gear; 610. Large bevel gear;

[0033] 6071, Limiting rod; 6072, Limiting groove. Detailed Implementation

[0034] like Figure 1-8As shown, a blast hole sealing device includes a sealing plug 1, within which an inner tube 4 is installed. The end of the inner tube 4 furthest from the plug head of the sealing plug 1 is fixedly connected to the sealing plug 1 via a flange. An opening and closing mechanism 6 is installed inside the inner tube 4. Several annular grooves 101 are formed around the sealing end of the sealing plug 1, providing a certain degree of anti-slip effect, improving the sealing effect, effectively concentrating the explosive force, and increasing blasting efficiency. The sealing plug 1 is made of rubber, possessing good elasticity, and can adapt to blast holes of different shapes and sizes. Through its own elastic deformation, it tightly conforms to the hole wall, achieving a good sealing effect; it also has a shock absorption and noise reduction function, reducing vibration and noise between the device and the hole wall during blasting.

[0035] like Figure 3-7 As shown, the opening and closing mechanism 6 includes a mounting base 601. Several moving slots 602 are symmetrically opened on the left end face of the mounting base 601. A screw 606 is rotatably installed in the moving slot 602. The bottom of the moving block 603 is provided with a thread 608. The upper end of the screw 606 is threadedly connected to the moving block 603. The moving block 603 is slidably connected to the moving slot 602. According to the screw principle, when the screw 606 rotates, the moving block 603 threadedly connected to it moves left and right on it.

[0036] A limiting block 607 is slidably mounted on the lower end of the movable block 603; the limiting block 607 includes a limiting rod 6071 embedded inside the mounting base 601, and a limiting groove 6072 is formed at the upper end of the limiting rod 6071, in which the screw 606 is placed. The purpose of the limiting block 607 is to restrict the screw 606 to rotate only within the movable groove 602 and not to move left or right, thereby assisting in the left and right movement of the movable block 603 on the screw 606.

[0037] A central hole 605 is provided at the center of the mounting base 601. A gear assembly for driving the screw 606 to rotate is installed in the central hole 605. The gear assembly is fixedly connected to a rotating shaft. The rotating shaft passes through the sealing plug 1 and is connected to a coupling 2. The other end of the coupling 2 is connected to a reduction motor 3. The reduction motor 3 is a forward and reverse motor, thereby realizing the forward and reverse rotation of the screw 606, and cooperating to complete the left and right reciprocating movement of the moving block 603. The gear assembly includes a large bevel gear 610 located at the center, and several small bevel gears 609 meshing on the large bevel gear 610 are keyed to the screw 606.

[0038] The movable block 607 has a connecting block 604 integrally formed at one end away from the central hole 605. The connecting block 604 passes through the inner tube 4 and is fixedly connected to the top plate 5. The outer side wall of the top plate 5 abuts against the inner side wall of the sealing plug 1. By abutting against the sealing plug 1 with the top plate 5, a certain pressure is applied to the sealing plug 1, so that it abuts against the hole wall of the rupture hole, thereby improving the sealing effect.

[0039] like Figure 8 As shown, the inner tube 4 includes a tube body 401, and the tube body 401 has a plurality of through holes 402 that match the connecting block 604.

[0040] The operation process of this utility model is as follows:

[0041] First, place the sealing plug 1 inside the rupture hole. Then, start the reduction motor 3, and the coupling 2 drives the rotating shaft to rotate, which in turn drives the gear assembly to rotate. Under this transmission, the screw 606 rotates forward. According to the screw principle, the moving block 604 moves outward in the moving groove 602. During the movement, the connecting block 604 drives the top plate 5 to press against the inner wall of the sealing plug 1, thus achieving a seal between the sealing plug 1 and the rupture hole. Finally, when the rupture is completed, or when it is necessary to remove the sealing plug 1, start the reduction motor 3 to rotate in the opposite direction, causing the screw 606 to move towards the center hole 605 of the mounting base 601. The top plate 5 moves accordingly, releasing the pressure brake on the sealing plug 1, and the sealing plug 1 can be removed.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A blast hole sealing device, characterized by: The sealing plug (1) is provided with an inner tube (4), and the inner tube (4) is provided with an opening and closing mechanism (6); The opening and closing mechanism (6) comprises a mounting seat (601), a plurality of moving grooves (602) are symmetrically formed on the left end surface of the mounting seat (601), a screw rod (606) is rotatably arranged in the moving groove (602), the upper end of the screw rod (606) is threadedly connected with a moving block (603), and the moving block (603) is slidably connected with the moving groove (602); the lower end of the moving block (603) is slidably provided with a limiting block (607); a central hole (605) is formed in the center position of the mounting seat (601), a gear assembly for driving the screw rod (606) to rotate is arranged in the central hole (605), the gear assembly is fixedly connected with a rotating shaft, the rotating shaft penetrates out of the sealing plug (1) and is connected with a shaft coupling (2), the other end of the shaft coupling (2) is connected with a speed reducer motor (3); one end of the moving block (603) away from the central hole (605) is integrally formed with a connecting block (604), the connecting block (604) penetrates out of the inner tube (4) and is fixedly connected with a top plate (5), and the outer side wall of the top plate (5) abuts against the inner side wall of the sealing plug (1).

2. The blast hole plugging device of claim 1, wherein: A plurality of annular grooves (101) are formed around the sealing end of the sealing plug (1).

3. The blast hole plugging device of claim 1, wherein: The sealing plug (1) is made of rubber material.

4. The blast hole plugging device of claim 1, wherein: The bottom of the moving block (603) is provided with a thread (608).

5. The blast hole plug device of claim 1, wherein: The limiting block (607) comprises a limiting rod (6071) embedded in the mounting seat (601), a limiting groove (6072) is formed in the upper end of the limiting rod (6071), and the screw rod (606) is placed in the limiting groove (6072).

6. The blast hole plug device of claim 1, wherein: The gear assembly comprises a large bevel gear (610) located at the center position, and a plurality of small bevel gears (609) are engaged with the large bevel gear (610) and are connected with the screw rod (606).

7. The blast hole plug device of claim 1, wherein: The inner tube (4) comprises a tube body (401), and a plurality of through holes (402) matched with the connecting block (604) are circumferentially formed on the tube body (401).

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