Underwater fixed-point blasting protection device

Abstract

The invention provides an underwater fixed-point blasting protection device which comprises a plurality of main buoys and a hard lower mounting ring, and each main buoy is connected with the lower mounting ring through a main pull rope; the device further comprises a plurality of baffles, the baffles are circumferentially arranged and installed on the lower installation ring, counter weights are arranged at the bottoms of the baffles, each baffle can be hung at the bottom of the lower installation ring in a rotating mode, holes are formed in the baffles, a bag net is arranged at the rear ends of the holes, and the bag nets are unfolded towards the outer side of the lower installation ring. When blasting is carried out, impact force enables the baffles to be opened outwards, certain blasting impact can be prevented due to the fact that the baffles are opened outwards and still have certain resistance, a previous blasting object can be blocked through the bag net, some impact can be released after the bag net is opened, and damage to the protection device is avoided. After the baffle is retracted, pollutants in water after blasting can be blocked and prevented from diffusing outwards to pollute the water environment.

Description

Technical Field

[0001] The invention relates to the technical field of underwater blasting, in particular to an underwater fixed-point blasting protection device. Background Art

[0002] During underwater construction, in order to eliminate the adverse effects of underwater reefs on construction, underwater reefs will be blasted and removed according to construction requirements. Among them, underwater fixed-point blasting technology is the main and commonly used means to quickly remove underwater reefs. It has the characteristics of controllable blasting range and high reef removal efficiency. However, after underwater blasting, there will be a large amount of silt and sediment in the water around the blasting point, causing turbidity and pollution in the surrounding water. For example, a completely enclosing protective fence is usually used to enclose the blasting area. Although it can play a protective role, the impact of the blasting on the protective fence is relatively large, causing serious damage to it. In view of this, an underwater fixed-point blasting protection device is proposed. Summary of the invention

[0003] The present invention aims to solve the problem that the fully enclosed protective fence in the background technology is subject to greater impact, and the technical solution adopted is:

[0004] Provided is an underwater fixed-point blasting protection device, comprising a plurality of main floats and a hard lower mounting ring, wherein each of the main floats is connected to the lower mounting ring via a main pull rope;

[0005] It also includes a plurality of baffles, which are arranged in a circle and mounted on the lower mounting ring, a counterweight is arranged at the bottom of the baffles, the device is placed in water, each of the baffles can be rotatably hung at the bottom of the lower mounting ring, and a certain gap is left between the connected baffles; a hole is opened on the baffle, and a net is arranged at the rear end of the hole and the net is spread out to the outside of the lower mounting ring;

[0006] It also includes an inner ring, which is connected to the main float through an inner pull rope, so that the inner ring is arranged on the inner side of the lower mounting ring, and a transverse rope is installed on the inner ring.

[0007] Preferably, an auxiliary rope is provided on the top of the net, and the auxiliary rope can be connected to the lower mounting ring.

[0008] Preferably, an auxiliary rope is provided on the top of the net, and an auxiliary float is installed at the end of the auxiliary rope.

[0009] Preferably, the net is a conical structure, and its opening cross-section is smaller than the rear end cross-section.

[0010] Preferably, the front end of the net is a hard net, and the rear end is a flexible net.

[0011] Preferably, a plurality of vertical ropes can be suspended on the transverse rope, and a detonator sleeve is provided at the bottom of the vertical rope.

[0012] Preferably, several of the main floats are connected by a hard rod.

[0013] Preferably, an opening is provided at the side end of the main float, and the main float is installed on a hard rod through the opening.

[0014] Preferably, a plurality of mounting holes are provided at the bottom of the baffle, and the counterweight can be installed through the mounting holes.

[0015] The beneficial effect of the present invention is that a lower mounting ring is provided in the present application, and the lower mounting ring is suspended in the water by a plurality of main floats, and a plurality of baffles are arranged and hung on the lower mounting ring, the baffles can surround the blasting point, and the baffles can swing after being placed in the water. During the blasting, the impact force will cause the baffles to open outwards, and since there is still a certain resistance to the outward opening, a certain blasting impact can be prevented, and the previous explosive can be blocked by the net, and some impact can be released after opening, thereby avoiding damage to the protective device, and when the baffle is retracted, the pollutants in the water after the blasting can be blocked to avoid spreading outwards and polluting the water environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a schematic diagram of the first structure of the protection device provided by an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 A schematic diagram of a top view structure;

[0019] Figure 3 is a schematic diagram of a second structure of a protective device provided in an embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the installation structure of the baffle plate and the lower mounting ring;

[0021] In the figure: 1-main float, 2-main pull rope, 3-lower mounting ring, 4-baffle, 4.1-net, 5-inner pull rope, 6-inner ring, 7-horizontal rope, 8-vertical rope, 9-detonator sleeve, 10-auxiliary float, 11-auxiliary rope, 12-hard rod. DETAILED DESCRIPTION

[0022] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present invention rather than to limit the scope of the present invention. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in conventional experiments.

[0023] In a specific embodiment, an underwater fixed-point blasting protection device is provided, which includes a plurality of main floats 1 and a hard lower mounting ring 3. In this example, the lower mounting ring 3 can be formed by bending and splicing steel pipes. During installation, each main float 1 is connected to the lower mounting ring 3 through a main pull rope 2. After being placed in water, the buoyancy of the main float 1 can make the lower mounting ring 3 suspended in the water to form a balanced state. Specifically, the number and volume of floats or floats of different material densities can be adjusted.

[0024] On this basis, it also includes a plurality of baffles 4, which are arranged in a circle and installed on the lower mounting ring 3, and a counterweight is arranged at the bottom of the baffle 4. The device is placed in water, and each baffle 4 can be rotatably hung at the bottom of the lower mounting ring 3, and a certain gap is left between the connected baffles 4 to ensure that the adjacent baffles 4 can move independently. Therefore, multiple baffles 4 can form a circular structure, but are not limited to a circular structure. In addition, a hole is opened on the baffle 4, and a bag net 4.1 is arranged at the rear end of the hole and is made to unfold to the outside of the lower mounting ring 3. The function of the bag net 4.1 is to collect and filter the debris in the water after the explosion. In order to prevent the impurities from flowing out of the mouth of the bag net 4.1, the bag net 4.1 is a conical structure, and its opening section is smaller than the rear end section, so as to prevent the outflow of debris to a certain extent. And the front end of the bag net 4.1 is a hard net, and the rear end is a flexible net. The hard net can ensure that the bag net 4.1 is always open, and the rear end soft net can block the debris to prevent the debris from flowing back. It can be further known that through the above structure, the buoyancy of the float 1 can make the lower mounting ring 3 and the baffle 4 float at the same time, and through the configuration block of the baffle 4, the baffle 4 can be kept vertically suspended in the water to form an enclosing protective structure, and the blasting area is inside the entire enclosing structure. During the blasting, the impact force will cause the baffle 4 to open outward. Since there is still a certain resistance to the outward opening, a certain blasting impact can also be prevented, and the previous explosives can be blocked by the net 4.1, and some impact can be released after opening to avoid damage to the protective device. When the baffle 4 is retracted, the pollutants in the water after the blasting can be blocked to avoid spreading outward and polluting the water environment.

[0025] In addition, it also includes an inner ring 6, which is connected to the main float 1 through an inner pull rope 5, so that the inner ring 6 is arranged inside the lower mounting ring 3, and a transverse rope 7 is installed on the inner ring 6. The strength of the lower mounting ring 3 can be strengthened by the arrangement of the inner ring 6 and the transverse rope 7, and the installation of detonators and gunpowder can be realized through the transverse rope 7. On this basis, a plurality of vertical ropes 8 can be hung on the transverse rope 7, and a detonator sleeve 9 is arranged at the bottom of the vertical rope 8. The transverse rope 7 and the vertical rope 8 in the present application are a plurality of ropes that can determine the installation position of the detonator sleeve 9 as needed.

[0026] On this basis, in order to keep the rear end of the bag net 4.1 in an unfolded state, an auxiliary rope 11 is provided on the top of the bag net 4.1, and the auxiliary rope 11 can be connected to the lower mounting ring 3, so that the top of the rear end of the bag net 4.1 can be pulled through the auxiliary rope 11.

[0027] Similarly, in order to pull the top of the bag net 4.1 and keep the bag net unfolded, an auxiliary rope 11 is also provided at the top of the bag net 4.1. The difference is that an auxiliary float 10 is installed at the end of the auxiliary rope 11. The buoyancy of the auxiliary float 10 is used to pull the bag net 4.1, making the installation easier.

[0028] In order to facilitate the installation of the float, the present application connects several main floats 1 through a hard rod 12, which can help the main floats 1 to exert force in the same direction. On this basis, in order to further facilitate the loading and unloading of the float, an opening is opened at the side end of the main float 1, and the main float 1 is installed on the hard rod 12 through the opening, which can facilitate the adjustment of the float buoyancy and improve the construction efficiency.

[0029] In the present application, since the baffle 4 is placed vertically, the buoyancy and counterweight are used for adjustment, and the counterweight also needs to be adjusted. Therefore, a plurality of mounting holes are provided at the bottom of the baffle 4, and the counterweight can be selectively installed through the mounting holes, which can make the adjustment of the buoyancy and counterweight more convenient and improve the construction efficiency.

[0030] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An underwater fixed-point blasting protection device, characterized in that: It comprises a plurality of main floats (1) and a hard lower mounting ring (3), wherein each of the main floats (1) is connected to the lower mounting ring (3) via a main pull rope (2); It also comprises a plurality of baffles (4), the baffles (4) being arranged in a circle and mounted on the lower mounting ring (3), a counterweight being arranged at the bottom of the baffles (4), the device being placed in water, each of the baffles (4) being rotatably suspended at the bottom of the lower mounting ring (3), and a certain gap being left between the connected baffles (4); a hole being opened on the baffle (4), and a net (4.1) being arranged at the rear end of the hole and the net (4.1) being spread out toward the outside of the lower mounting ring (3); It also includes an inner ring (6), which is connected to the main float (1) through an inner pull rope (5), so that the inner ring (6) is arranged on the inner side of the lower mounting ring (3), and a transverse rope (7) is installed on the inner ring (6).

2. The underwater fixed-point blasting protection device according to claim 1, characterized in that: An auxiliary rope (11) is arranged on the top of the bag net (4.1), and the auxiliary rope (11) can be connected to the lower mounting ring (3).

3. The underwater fixed-point blasting protection device according to claim 1, characterized in that: An auxiliary rope (11) is arranged on the top of the bag net (4.1), and an auxiliary float (10) is installed at the end of the auxiliary rope (11).

4. The underwater fixed-point blasting protection device according to claim 1, characterized in that: The net (4.1) is a conical structure, and its opening section is smaller than the rear end section.

5. The underwater fixed-point blasting protection device according to claim 4, characterized in that: The front end of the bag net (4.1) is a hard net, and the rear end is a flexible net.

6. The underwater fixed-point blasting protection device according to claim 1, characterized in that: A plurality of vertical ropes (8) can be suspended on the transverse rope (7), and a detonator sleeve (9) is arranged at the bottom of the vertical rope (8).

7. The underwater fixed-point blasting protection device according to claim 1, characterized in that: A plurality of the main floats (1) are connected via a hard rod (12).

8. The underwater fixed-point blasting protection device according to claim 7, characterized in that: An opening is provided at the side end of the main float (1), and the main float (1) is installed on the hard rod (12) through the opening.

9. The underwater fixed-point blasting protection device according to claim 1, characterized in that: A plurality of mounting holes are arranged at the bottom of the baffle (4), and the counterweight can be installed through the mounting holes.

Images