Underwater blasting shock wave weakening device

Abstract

The utility model relates to the technical field of underwater blasting, and discloses an underwater blasting shock wave weakening device which comprises a protection box and a first baffle, connecting plates are fixedly connected to the positions, close to the bottom end, of the two sides of the protection box, lantern rings are movably connected to the positions, close to the ends, of the two connecting plates in a sleeved mode, a first weakening assembly is arranged in the protection box, and a second weakening assembly is arranged in the protection box. The first weakening assembly comprises a toothed plate rod, one end of the toothed plate rod penetrates through one side of the protection box to be fixedly connected with the first baffle, then the toothed plate rod is driven to move on the supporting frame in the first baffle, a double-layer gear meshed with the toothed plate rod is driven to rotate, and then a sector gear meshed with the toothed plate rod is driven to rotate under the limiting effect of a limiting column; under movable sleeving of a first sleeve block, a main rotating rod is driven to rotate, and then under movable sleeving of a second sleeve block, an auxiliary rotating rod is driven to rotate, so that stirring fan blades are driven to rotate, shock waves generated by underwater blasting are weakened, and the stability of underwater movement is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater blasting, and more specifically to an underwater blasting shock wave weakening device. Background Art

[0002] Underwater blasting is widely used in many fields of the national economy, such as hydropower stations, port terminals, bridge construction, waterway dredging and military protection, etc. When underwater blasting, huge shock waves will be generated, causing adverse effects on the surrounding environment.

[0003] Deficiencies of the prior art: In order to reduce the impact of shock waves, protective devices are usually set up in safe areas to intercept the shock waves, shorten the diffusion distance of the shock waves, and reduce their influence area. However, most of the existing protective devices are set on the water surface and cannot be set according to the blasting depth, so the practicability is low. Therefore, an underwater blasting shock wave weakening device is needed to solve the above problems. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an underwater blasting shock wave weakening device to solve the problems existing in the above background art.

[0005] The utility model provides the following technical solution: An underwater blasting shock wave weakening device includes a protective box and a first baffle. Both sides of the protective box near the bottom end are fixedly connected with connecting plates. A sleeve ring is movably sleeved at one end of each of the two connecting plates. A first weakening component is arranged inside the protective box. The first weakening component includes a toothed plate rod. One end of the toothed plate rod penetrates through one side of the protective box and is fixedly connected with the first baffle. A support frame is slidably sleeved on the outer wall of the toothed plate rod near the top end. A double-layer gear is movably sleeved at one end of the support frame. A sector gear is meshed with the double-layer gear near the other side. A first sleeve block is movably sleeved on one side of the sector gear near the tooth pattern. A main rotating rod is fixedly connected to the outer wall of the first sleeve block. A second sleeve block is fixedly connected to one end of the main rotating rod. A secondary rotating rod is movably sleeved in the middle of the second sleeve block. A stirring fan blade is fixedly sleeved at one end of the secondary rotating rod.

[0006] Preferably, a limiting column is movably sleeved at the other end of the sector gear, and one end of the limiting column is fixedly connected to the other side of the support frame near the support frame.

[0007] Preferably, the outer wall of the support frame is fixedly connected with the inner wall of the protective box, and the columnar outer wall of the stirring fan blade is movably sleeved at the bottom end of the protective box.

[0008] Preferably, a second weakening component is provided on one side of the back of the protective box. The second weakening component includes a U-shaped seat. Limiting rods are fixedly connected to both ends of the U-shaped seat close to it. A first surrounding rod is movably sleeved on the outer wall of one of the limiting rods, and a second surrounding rod is movably sleeved on the outer wall of the other limiting rod.

[0009] Preferably, the other end of the toothed plate rod is fixedly connected with a sleeve rod. The inner walls of the second surrounding rod and the first surrounding rod are movably sleeved on the outer wall of the sleeve rod.

[0010] Preferably, impact rings are fixedly connected to one ends of the first surrounding rod and the second surrounding rod. One side of the U-shaped seat is fixedly connected to one side of the back of the protective box.

[0011] The technical effects and advantages of the present utility model:

[0012] By providing the first weakening component in the present utility model, when a shock wave is generated during underwater blasting work, the impact force reaches the first baffle, pushing the first baffle to move backward, thereby driving the toothed plate rod to move on the support frame in the first baffle, driving the double-layer gear meshed with it to rotate, and then driving the sector gear meshed with it to rotate under the limiting action of the limiting column. Under the movable sleeve of the first sleeve block, the main rotating rod is driven to rotate, and then under the movable sleeve of the second sleeve block, the auxiliary rotating rod is driven to rotate, thereby driving the stirring fan blades to rotate, which is beneficial to weakening the shock wave generated by underwater blasting, thus ensuring the stability of underwater activities.

[0013] By providing the second weakening component in the present utility model, when the first baffle is driven by the impact force to drive the toothed plate rod to move, one end of the toothed plate rod moves backward on the U-shaped seat, driving the sleeve rod to move in the middle of the U-shaped seat, thereby driving the first surrounding rod and the second surrounding rod to rotate under the movable sleeve of the limiting rod, and then driving the two impact rings to move towards each other, which is beneficial to further weakening the impact wave generated by underwater blasting, improving the weakening effect of the underwater blasting shock wave. At the same time, under the action of the connecting plate and the sleeve ring, according to the use requirements, multiple groups of devices can be combined. The connecting plates and sleeve rings of two adjacent devices are fixed through connecting bolts, and the combination of the two devices can be realized, expanding the shock wave weakening range. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a sectional view of the structure at the protective box of the present utility model.

[0016] Figure 3 It is a schematic diagram of the structure at the first weakening component of the present utility model.

[0017] Figure 4Schematic structural diagram of the tooth plate rod of the present utility model.

[0018] Figure 5 For the present utility model Figure 4 Schematic structural diagram of the position A in

[0019] Reference numerals: 1, first baffle; 2, protective box; 3, stirring fan blade; 4, collar; 5, connecting plate; 6, second weakening component; 601, impact ring; 602, U-shaped seat; 603, sleeve rod; 604, limiting rod; 605, first surrounding rod; 606, second surrounding rod; 7, first weakening component; 701, tooth plate rod; 702, double-layer gear; 703, support frame; 704, sector gear; 705, first sleeve block; 706, limiting column; 707, main rotating rod; 708, second sleeve block; 709, auxiliary rotating rod. Detailed implementation manners

[0020] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Additionally, the forms of each structure described in the following implementation manners are merely examples, and the underwater blasting shock wave weakening device related to the present utility model is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] The utility model provides a device for weakening underwater blasting shock waves, which includes a protective box 2 and a first baffle 1. Connecting plates 5 are fixedly connected to both sides of the protective box 2 near the bottom end. Sleeve rings 4 are movably sleeved at one end of the two connecting plates 5. A first weakening component 7 is arranged inside the protective box 2. The first weakening component 7 includes a toothed plate rod 701. One end of the toothed plate rod 701 penetrates through one side of the protective box 2 and is fixedly connected to the first baffle 1. A support frame 703 is slidably sleeved on the outer wall of the toothed plate rod 701 near the top end. A double-layer gear 702 is movably sleeved at one end of the support frame 703. A sector gear 704 is meshed with the double-layer gear 702 on the other side. A first sleeve block 705 is movably sleeved on one side of the sector gear 704 near the tooth pattern. A main rotating rod 707 is fixedly connected to the outer wall of the first sleeve block 705. A second sleeve block 708 is fixedly connected to one end of the main rotating rod 707. A secondary rotating rod 709 is movably sleeved in the middle of the second sleeve block 708. A stirring fan blade 3 is fixedly sleeved at one end of the secondary rotating rod 709. Then, under the movable connection of the second sleeve block 708, the secondary rotating rod 709 is driven to rotate, thereby driving the stirring fan blade 3 to rotate, which is beneficial to weakening the shock waves generated by underwater blasting, thus ensuring the stability of underwater activities. Further, a limiting column 706 is movably sleeved at the other end of the sector gear 704. One end of the limiting column 706 is fixedly connected to the other side of the support frame 703, which is convenient for the toothed plate rod 701 to move and drive the double-layer gear 702 to rotate under the movable limiting connection of the limiting column 706, and then drive the sector gear 704 to rotate. Further, the outer wall of the support frame 703 is fixedly connected to the inner wall of the protective box 2. The columnar outer wall of the stirring fan blade 3 is movably sleeved at the bottom end of the protective box 2, which is convenient for the main rotating rod 707 and the secondary rotating rod 709 to rotate under the movable connection of the second sleeve block 708 under the limiting support of the support frame 703, driving the stirring fan blade 3 to rotate and further weakening the shock waves. Further, a second weakening component 6 is arranged on one side of the back of the protective box 2. The second weakening component 6 includes a U-shaped seat 602. Limiting rods 604 are fixedly connected to both ends of the U-shaped seat 602. A first surrounding rod 605 is movably sleeved on the outer wall of one limiting rod 604. A second surrounding rod 606 is movably sleeved on the outer wall of the other limiting rod 604, which is convenient for the first surrounding rod 605 and the second surrounding rod 606 to move and rotate at an angle at the limiting rods 604 under the support of the U-shaped seat 602. Further, a sleeve rod 603 is fixedly connected to the other end of the toothed plate rod 701. The inner walls of the second surrounding rod 606 and the first surrounding rod 605 are movably sleeved on the outer wall of the sleeve rod 603, which is convenient for driving the first surrounding rod 605 and the second surrounding rod 606 to move and then rotate at an angle under the limiting effect of the limiting rods 604 when the toothed plate rod 701 moves and drives the sleeve rod 603 to move.Furthermore, impact rings 601 are fixedly connected to one ends of the first surrounding rod 605 and the second surrounding rod 606, and one side of the U-shaped seat 602 is fixedly connected to the back side of the protection box 2, facilitating the relative movement of the two impact rings 601 when the first surrounding rod 605 and the second surrounding rod 606 move and rotate with the sleeve rod 603, further weakening the shock wave.

[0022] The working principle of the present utility model: When a shock wave is generated during underwater blasting work, the impact force reaches the first baffle 1, pushing the first baffle 1 to move backward, thereby driving the toothed plate rod 701 to move on the support frame 703 inside the first baffle 1, driving the double-layer gear 702 engaged therewith to rotate, and then driving the sector gear 704 engaged therewith to rotate under the limiting action of the limiting post 706. Under the movable socket connection of the first sleeve block 705, the main rotating rod 707 is driven to rotate, and then under the movable socket connection of the second sleeve block 708, the auxiliary rotating rod 709 is driven to rotate, thereby driving the stirring fan blade 3 to rotate, weakening the shock wave generated by underwater blasting. When the first baffle 1 is driven by the impact force to drive the toothed plate rod 701 to move, one end of the toothed plate rod 701 moves backward on the U-shaped seat 602, driving the sleeve rod 603 to move in the middle of the U-shaped seat 602, thereby driving the first surrounding rod 605 and the second surrounding rod 606 to rotate under the movable socket connection of the limiting rod 604, and the two impact rings 601 can be driven to move towards each other, further weakening the impact wave generated by underwater blasting, improving the weakening effect of the underwater blasting shock wave. At the same time, under the action of the connecting plate 5 and the sleeve ring 4, according to the use requirements, multiple groups of devices can be combined. By fixing the connecting plate 5 and the sleeve ring 4 of two adjacent devices with connecting bolts, the combination of two groups of devices can be realized, expanding the shock wave weakening range.

[0023] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the internal communication of two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0024] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0025] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An underwater blasting shock wave attenuation device, comprising a protective box (2) and a first baffle (1), characterized in that: On both sides of the protection box (2) near the bottom end, connecting plates (5) are fixedly connected. At the near one end of the two connecting plates (5), collar rings (4) are movably sleeved. Inside the protection box (2), a first weakening component (7) is provided. The first weakening component (7) includes a toothed plate rod (701). One end of the toothed plate rod (701) penetrates through one side of the protection box (2) and is fixedly connected to the first baffle (1). Near the top end of the outer wall of the toothed plate rod (701), a support frame (703) is slidably sleeved. At the near one end of the support frame (703), a double-layer gear (702) is movably sleeved. On the near other side of the double-layer gear (702), a sector gear (704) is engaged. Near the tooth pattern on one side of the sector gear (704), a first sleeve block (705) is movably sleeved. On the outer wall of the first sleeve block (705), a main rotating rod (707) is fixedly connected. One end of the main rotating rod (707) is fixedly connected to a second sleeve block (708). In the middle of the second sleeve block (708), a secondary rotating rod (709) is movably sleeved. At the near one end of the secondary rotating rod (709), a stirring fan blade (3) is fixedly sleeved.

2. An underwater blasting shock wave attenuation device according to claim 1, characterized in that: At the near other end of the sector gear (704), a limiting column (706) is movably sleeved. One end of the limiting column (706) is fixedly connected to the near other side of the support frame (703).

3. An underwater blasting shock wave weakening device according to claim 1, characterized in that: The outer wall of the support frame (703) is fixedly connected to the inner wall of the protection box (2). The columnar outer wall of the stirring fan blade (3) is movably sleeved at the near bottom end of the protection box (2).

4. An underwater blasting shock wave attenuation device according to claim 1, characterized in that: On the back side of the protection box (2), a second weakening component (6) is provided. The second weakening component (6) includes a U-shaped seat (602). At the near two ends of the U-shaped seat (602), limiting rods (604) are fixedly connected. On the outer wall of one of the limiting rods (604), a first surrounding rod (605) is movably sleeved. On the outer wall of the other limiting rod (604), a second surrounding rod (606) is movably sleeved.

5. An underwater blasting shock wave attenuation device according to claim 4, characterized in that: The other end of the toothed plate rod (701) is fixedly connected to a sleeve rod (603). The inner walls of the second surrounding rod (606) and the first surrounding rod (605) are movably sleeved on the outer wall of the sleeve rod (603).

6. An underwater blasting shock wave attenuation device according to claim 4, characterized in that: One end of each of the first surrounding rod (605) and the second surrounding rod (606) is fixedly connected to an impact ring (601). One side of the U-shaped seat (602) is fixedly connected to the back side of the protection box (2).

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