Air-decked charge structure for blasting

Abstract

This utility model discloses an air-spaced charging structure for blasting, including an air-spaced charging device. By setting up the air-spaced charging device, the number of elastic clamps installed is first adjusted according to the number of explosive charges and airbags to ensure that the number of elastic clamps matches the total number of explosive charges and airbags. During charging, the explosive charges and airbags are alternately clamped into the inner side of the elastic clamps. Then, the detonating wire is passed through the wiring port and led out from the top of the guide rod. Next, limiting sleeves are fitted onto both ends of the guide rod, and the positioning bolts are tightened to fix the position of the limiting sleeves. The limiting sleeves prevent the sliding sleeves from sliding off from both ends of the guide rod, ensuring that the overall charging structure is firm and does not loosen. Finally, the charging structure is sent into the borehole with the help of the guide rod, thus completing the charging action. This allows for pre-fabrication of the charging structure, reducing the cumbersome process of on-site charging and wiring, thereby improving engineering efficiency.

Description

Technical Field

[0001] This utility model relates to the field of blasting engineering technology, specifically to an air-spaced charge structure for blasting. Background Technology

[0002] A segmented charge structure is a type of charge in which the explosive charge is artificially divided into several segments. Air-spaced charge is a type of segmented charge that uses air bladders to segment the explosive charge, effectively reducing energy loss of the explosive during detonation, thereby improving the blasting effect and reducing the vibration impact on the surrounding environment.

[0003] Existing patent application number: 202010964174.5 Air-gap blasting construction method: Drill vertical blast holes, send the first detonating charge into the vertical blast hole using a detonating cord, tie the upper and middle parts of the first spacer charge with the first and second nylon rope loops respectively, connect the lower end of the lifting rope to the first and second nylon rope loops respectively, and then pull the lifting rope to slowly put the untied end of the first spacer charge into the vertical blast hole to the top of the air gap.

[0004] The aforementioned patent describes an air-gap charging structure. In borehole charging operations, air bladders and explosive charges need to be filled alternately. On-site installation is complex and it is difficult to prefabricate the charging structure, which affects the progress of the project. Therefore, we propose an air-gap charging structure for blasting to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an air-spaced explosive charge structure for blasting, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an air-spaced charge structure for blasting, comprising an air-spaced charge device, wherein the air-spaced charge device comprises a guide rod, a sliding sleeve, an elastic clamp, and a guide groove, wherein the sliding sleeve is slidably fitted on the surface of the guide rod, and an elastic clamp is integrally installed on the side of the sliding sleeve, wherein a guide groove is formed on the surface of the guide rod, the guide groove extending to both ends of the guide rod, and the sliding sleeve slidingly engaging with the inner side of the guide groove.

[0007] Preferably, the sliding sleeve can be slidably removed and slidably inserted from both ends of the guide rod.

[0008] Preferably, the entire spaced-out loading device is made of insulating material.

[0009] Preferably, the guide rod is a hollow tube structure with both ends open, and the surface of the guide rod is provided with cable routing ports, which are connected to the interior of the guide rod.

[0010] Preferably, the guide rod surface is fitted with a limiting sleeve at both the upper and lower ends, and a positioning bolt is threaded into the screw hole on the side of the limiting sleeve. The positioning bolt is screwed into the limiting sleeve and abuts against the guide rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention employs an interval charging device. First, the number of elastic clamps is adjusted according to the number of propellant charges and airbags to ensure the total number of clamps matches the total number of propellant charges and airbags. During charging, the propellant charges and airbags are alternately clamped into the inner side of the elastic clamps. Then, the detonating wire is passed through the wiring port and extended from the top of the guide rod. Next, limiting sleeves are fitted onto both ends of the guide rod, and the positioning bolts are tightened to fix the position of the limiting sleeves. The limiting sleeves prevent the sliding sleeves from sliding off the guide rod, ensuring the overall charging structure is firm and does not loosen. Finally, the charging structure is fed into the borehole using the guide rod, completing the charging process. This pre-fabrication of the charging structure eliminates the cumbersome process of on-site charging and wiring, thereby improving project efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial structural diagram of the guide rod in this utility model;

[0015] Figure 3 This is a schematic diagram of the limiting sleeve in this utility model.

[0016] In the diagram: Interval loading device-1, guide rod-11, sliding sleeve-12, elastic clamp-13, guide groove-14, cable outlet-15, limit sleeve-16, positioning bolt-17. Detailed Implementation

[0017] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0018] Please see Figure 1-3 This utility model provides an air-gap charge structure for blasting, including a spaced charge device 1. The spaced charge device 1 includes a guide rod 11, a sliding sleeve 12, an elastic clamp 13, and a guide groove 14. The sliding sleeve 12 is slidably fitted on the surface of the guide rod 11, and the elastic clamp 13 is integrally installed on the side of the sliding sleeve 12. The guide groove 14 is formed on the surface of the guide rod 11 and extends to both ends of the guide rod 11. The sliding sleeve 12 is slidably engaged with the inner side of the guide groove 14 to limit the insertion angle of the sliding sleeve 12 and ensure that the elastic clamp 13 is in the same direction.

[0019] The sliding sleeve 12 can be slidably removed and slidably inserted from both ends of the guide rod 11. The user can adjust the number of elastic clamps 13 installed on site according to the number of drugs and airbags to better adapt to the installation needs of different equivalents.

[0020] Among them, the interval charging device 1 is made of insulating material to avoid sparks generated by friction and impact, and to ensure the safety of charging.

[0021] In this utility model, the guide rod 11 is a hollow tube structure with both ends through it. The surface of the guide rod 11 is provided with wiring ports 15, which are connected to the inside of the guide rod 11. The detonating wire can be led out from the inside of the guide rod 11 through the wiring ports 15, reducing the difficulty of wiring.

[0022] To further explain, both the upper and lower ends of the guide rod 11 are fitted with limiting sleeves 16. The screw holes on the side of the limiting sleeve 16 are connected to positioning bolts 17. The positioning bolts 17 are screwed into the limiting sleeve 16 and abut against the guide rod 11. The limiting sleeves 16 restrict the sliding sleeves 12 from sliding off the two ends of the guide rod 11, ensuring that the overall charge structure is firm and does not loosen.

[0023] Specifically, by setting up an interval charging device 1, before charging, the number of elastic clamps 13 installed is adjusted according to the number of explosive charges and airbags to ensure that the total number of elastic clamps 13 is consistent with the total number of explosive charges and airbags. During charging, the explosive charges and airbags are alternately clamped into the inner side of the elastic clamps 13. Then, the detonating wire is passed through the wiring port 15 and taken out from the top of the guide rod 11. Subsequently, the limiting sleeves 16 are fitted onto both ends of the guide rod 11, and the positioning bolts 17 are tightened to fix the position of the limiting sleeves 16. The limiting sleeves 16 restrict the sliding sleeves 12 from sliding off both ends of the guide rod 11, ensuring that the overall charging structure is firm and not loose. Finally, the charging structure is sent into the borehole with the help of the guide rod 11, thus completing the charging action. The charging structure can be prefabricated, reducing the cumbersome process of on-site charging and wiring, thereby improving engineering efficiency.

[0024] The above description is merely 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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air-spaced explosive charge structure for blasting, characterized in that: The device includes a spaced-out charging device (1), which includes a guide rod (11), a sliding sleeve (12), an elastic clamp (13), and a guide groove (14). The sliding sleeve (12) is slidably fitted on the surface of the guide rod (11), and the elastic clamp (13) is integrally installed on the side of the sliding sleeve (12). The guide groove (14) is opened on the surface of the guide rod (11) and extends to both ends of the guide rod (11). The sliding sleeve (12) is slidably fitted into the inner side of the guide groove (14).

2. The air-spaced explosive charge structure for blasting according to claim 1, characterized in that: The sliding sleeve (12) can be slidably removed and slidably inserted from both ends of the guide rod (11).

3. The air-spaced explosive charge structure for blasting according to claim 1, characterized in that: The interval loading device (1) is made of insulating material.

4. The air-spaced explosive charge structure for blasting according to claim 1, characterized in that: The guide rod (11) is a hollow tube structure with both ends open. The surface of the guide rod (11) is provided with cable trays (15), which are connected to the inside of the guide rod (11).

5. The air-spaced explosive charge structure for blasting according to claim 1, characterized in that: The guide rod (11) has a limiting sleeve (16) fitted at both the upper and lower ends. The limiting sleeve (16) has a positioning bolt (17) threaded into the screw hole on the side. The positioning bolt (17) is screwed into the limiting sleeve (16) and abuts against the guide rod (11).

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