Blast hole charging structure

By using a combination of connecting rods, baffles, and kits inside the blast hole, and rotating the movable sleeve to adjust the explosive spacing, the problem of poor blasting effect caused by explosive stacking was solved, and better blasting control was achieved.

CN224230862UActive Publication Date: 2026-05-12CHINA FIRST HIGHWAY ENGINEERING CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA FIRST HIGHWAY ENGINEERING CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In blasting operations, the stacking of multiple explosives in a single blast hole leads to poor blasting results, and it is necessary to control the interval of the explosives to produce the desired effect.

Method used

A blast hole charging structure is adopted, which includes a combination of connecting rods, partitions and kits. The spacing of explosives in adjacent containment spaces is controlled by rotating the movable sleeve to move the partitions.

Benefits of technology

It enables effective control of the explosive interval, improving the controllability and consistency of the blasting effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a blast hole charging structure which comprises connecting rods fixedly connected between end covers, the connecting rods define a containing space, a partition plate is arranged on the connecting rods in a penetrating mode, a fixed sleeve is screwed on the partition plate, a movable sleeve is screwed on the connecting rods, and the movable sleeve is rotationally connected with the fixed sleeve. The partition plates can be driven to move along the connecting rods by rotating the movable sleeves, and the interval between the explosives in every two adjacent containing spaces can be conveniently controlled.
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Description

Technical Field

[0001] This application relates to the field of blasting technology, and more particularly to a blasting hole charging structure. Background Technology

[0002] During blasting operations, multiple explosives may need to be placed in a single blast hole. If the explosives are put directly into the blast hole without any treatment, the explosives will pile up, affecting the blasting effect. In order to carry out blasting operations scientifically and rationally, it is necessary to control the interval of the explosives so that the explosives produce the desired effect. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a blast hole charging structure in order to control the interval of explosives.

[0004] The technical solution of this application is as follows:

[0005] This application provides a blast hole charging structure, including a connecting rod fixed between end caps, the connecting rod enclosing an accommodating space, a partition plate passing through the connecting rod, a fixed sleeve screwed onto the partition plate, and a movable sleeve screwed onto the connecting rod, the movable sleeve being rotatably connected to the fixed sleeve.

[0006] Using the technical solution of this application, rotating the movable sleeve can drive the partition to move along the connecting rod, which makes it easy to control the interval of explosives in two adjacent containment spaces.

[0007] In some implementations, the connecting rod is arranged parallel to the axis of the end cap.

[0008] In some implementations, the connecting rods are evenly distributed circumferentially along the end cap.

[0009] In some implementations, positioning sleeves are screwed onto the connecting rods on both sides of the end cap.

[0010] In some implementations, the partition has smooth holes for passing through connecting rods.

[0011] In some implementations, an annular groove for engaging the retaining sleeve is provided on the outer side of one of the smooth holes.

[0012] In some implementations, the annular groove and the smooth hole are arranged coaxially.

[0013] In some implementations, the fixed sleeve has a first retaining edge, and the movable sleeve has a second retaining edge, with the second retaining edge abutting against the first retaining edge.

[0014] In some implementations, the first clip edge is arranged coaxially with the fixing sleeve.

[0015] In some implementations, the second card edge is arranged coaxially with the movable sleeve. Attached Figure Description

[0016] Exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments described below are for illustrative purposes only and are not intended to limit the scope of this application. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the explosive charging structure according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the movable sleeve and the fixed sleeve according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of a partition according to an embodiment of this application;

[0020] Figure label:

[0021] 10. End caps;

[0022] 20. Connecting rod; 21. Movable sleeve; 22. Second retaining edge; 23. Positioning sleeve;

[0023] 30. Partition; 31. Fixing sleeve; 32. First retaining edge; 33. Smooth hole; 34. Slide groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0025] In related technologies, when carrying out blasting operations, multiple explosives may need to be placed in a single blast hole. If the explosives are put directly into the blast hole without any treatment, the explosives will pile up, affecting the blasting effect. In order to carry out blasting operations scientifically and rationally, it is necessary to control the interval of the explosives so that the explosives produce the desired effect.

[0026] In view of this, the purpose of this embodiment is to provide a blast hole charging structure in order to control the interval of explosives.

[0027] Please see Figures 1-3 In this embodiment, a blasting hole charging structure includes a connecting rod 20 fixed between end caps 10, the connecting rod 20 enclosing an accommodating space, a partition 30 passing through the connecting rod 20, a fixed sleeve 31 screwed onto the partition 30, and a movable sleeve 21 screwed onto the connecting rod 20, the movable sleeve 21 being rotatably connected to the fixed sleeve 31.

[0028] Using the technical solution of this embodiment, rotating the movable sleeve 21 can drive the partition 30 to move along the connecting rod 20, which facilitates the control of the interval between explosives in two adjacent accommodating spaces.

[0029] In this embodiment, the end cap 10 is constructed as a disk, and multiple mounting holes for inserting connecting rods are provided on the end cap 10. The axis of the mounting holes is parallel to the axis of the end cap 10, the inner wall of the mounting holes is smooth, and the multiple mounting holes are evenly distributed along the circumference of the end cap 10.

[0030] In this embodiment, the connecting rod 20 is constructed as a longitudinally elongated round rod. The connecting rod 20 passes through the mounting hole on the end cover 10. Multiple connecting rods 20 are arranged between the two end covers 10, and the connecting rods 20 are arranged parallel to the axis of the end cover 10. The multiple connecting rods 20 are evenly distributed along the circumference of the end cover 10, and the multiple connecting rods 20 form a receiving space for filling explosives.

[0031] It should be noted that positioning sleeves 23 are screwed onto the connecting rods 20 on both sides of the end cap 10, and the end cap 10 is clamped by the positioning sleeves 23 on both sides, thereby fixing the position of the end cap 10 on the connecting rods 20.

[0032] It should also be noted that two partitions 30 are provided on the connecting rod 20 between the two end caps 10. The partitions 30 are constructed in the shape of a disc. The partitions 30 are provided with smooth holes 33 for the connecting rod 20 to pass through. The smooth holes 33 correspond one-to-one with the connecting rod 20, so that the partitions 30 as a whole can slide along the connecting rod 20. The two partitions 30 divide the accommodating space into three parts along the axial direction. The explosives are filled in the accommodating space between the partitions 30 and the corresponding end caps 10. The interval between the two partitions 30 is the interval between adjacent explosives.

[0033] In this embodiment, an annular groove 34 for screwing in a fixing sleeve 31 is provided on the outer side of one of the smooth holes 33 on the partition plate 30. The annular groove 34 is coaxially arranged with the smooth hole 33. The fixing sleeve 31 is screwed in the inside of the annular groove 34. The fixing sleeve 31 is sleeved on the outside of the connecting rod 20. The fixing sleeve 31 and the connecting rod 20 are coaxially arranged.

[0034] It should be noted that a first retaining edge 32 is provided on the fixing sleeve 31. The first retaining edge 32 is arranged coaxially with the fixing sleeve 31, and the inner diameter of the first retaining edge 32 is smaller than the inner diameter of the fixing sleeve 31.

[0035] In this embodiment, the movable sleeve 21 is screwed onto the connecting rod 20. The movable sleeve 21 and the connecting rod 20 are arranged coaxially. A second retaining edge 22 is provided on the movable sleeve 21, and the second retaining edge 22 is arranged coaxially with the movable sleeve 21. The outer diameter of the second retaining edge 22 is larger than the outer diameter of the movable sleeve 21. The second retaining edge 22 abuts against the first retaining edge 32.

[0036] It should be noted that the outer diameter of the second retaining edge 22 is equal to the inner diameter of the fixed sleeve 31, the inner diameter of the first retaining edge 32 is equal to the outer diameter of the movable sleeve 21, the fixed sleeve 31 is fitted over the movable sleeve 21, and the first retaining edge 32 and the second retaining edge 22 are connected by a snap-fit, so that the movable sleeve 21 and the fixed sleeve 31 are rotatably connected.

[0037] It should be understood that when the movable sleeve 21 is rotated, the movable sleeve 21 will move along the connecting rod 20, and can push the partition 30 to move along the connecting rod 20, thereby adjusting the distance between the two partitions 30, and thus adjusting the interval of the explosives.

[0038] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A blast hole charging structure, characterized in that, It includes a connecting rod fixed between end caps, the connecting rod enclosing a receiving space for filling explosives, a partition plate passing through the connecting rod, a fixed sleeve screwed onto the partition plate, and a movable sleeve screwed onto the connecting rod, the movable sleeve being rotatably connected to the fixed sleeve.

2. The explosive charging structure as described in claim 1, characterized in that, The connecting rod is arranged parallel to the axis of the end cap.

3. The explosive charging structure as described in claim 2, characterized in that, The connecting rods are evenly distributed along the circumference of the end cap.

4. The explosive charging structure as described in claim 3, characterized in that, Positioning sleeves are screwed onto the connecting rods on both sides of the end cap.

5. The explosive charging structure as described in claim 4, characterized in that, The partition plate is provided with smooth holes for the connecting rod to pass through.

6. The explosive charging structure as described in claim 5, characterized in that, One of the smooth holes has an annular groove on its outer side for screwing the retaining sleeve.

7. The explosive charging structure as described in claim 6, characterized in that, The annular groove is arranged coaxially with the smooth hole.

8. The explosive charging structure as described in claim 7, characterized in that, The fixed sleeve has a first retaining edge, and the movable sleeve has a second retaining edge, the second retaining edge abutting against the first retaining edge.

9. The explosive charging structure as described in claim 8, characterized in that, The first clip edge is arranged coaxially with the fixed sleeve.

10. The explosive charging structure as described in claim 9, characterized in that, The second clip edge is arranged coaxially with the movable sleeve.