Charging device for engineering blasting

By using a lifting hydraulic rod to drive the charging tank and telescopic discharge pipe, the problem of low charging efficiency caused by a fixed discharge port of the charging device is solved. This achieves precise matching and sealing between the discharge port and the borehole, thus improving the charging effect.

CN224151563UActive Publication Date: 2026-04-21SHANDONG TIANBAO BLASTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The discharge port of the existing charging device is fixed, making it difficult to select a suitable discharge pipe according to the size of the blast hole, which affects the charging efficiency and effect.

Method used

The lifting hydraulic rod drives the charging tank to rise and fall, and combined with the telescopic discharge pipe and leak-proof gasket, it can achieve precise insertion and sealing of the discharge port and adapt to different borehole sizes.

Benefits of technology

It improves the efficiency and effectiveness of charging, prevents explosives from scattering, avoids resource waste, and ensures that the discharge port matches the blast hole.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of blasting equipment, and particularly relates to a charging device for engineering blasting, which comprises a supporting seat and a charging tank, a lifting hydraulic rod is mounted in the supporting seat, a lifting seat is fixed above the lifting hydraulic rod, and the charging tank is fixed on the inner side of the lifting seat; a discharging port is fixed to the bottom of the charging tank, a first discharging pipe is movably connected to the lower portion in the discharging port, a second discharging pipe is movably connected to the lower portion in the first discharging pipe, and leakage-proof rubber pads are fixedly connected to the outer wall of the discharging port, the outer wall of the first discharging pipe and the outer wall of the second discharging pipe. According to the charging device, the whole charging tank is driven to ascend and descend through the lifting hydraulic rod, so that the discharging port or the extending discharging pipe is accurately inserted into the blast holes of different sizes, and the problems that the discharging port of the charging device is in a fixed form, so that the proper discharging pipe is difficult to select for use according to the sizes of the blast holes, and the charging efficiency and effect are easily affected due to the fact that the discharging pipe is not matched are solved.
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Description

Technical Field

[0001] This utility model belongs to the field of blasting equipment technology, specifically relating to a charging device for engineering blasting. Background Technology

[0002] Engineering blasting technology has permeated many fields of economic construction, and has made significant contributions to China's railway construction, mining, and directional blasting for urban demolition. In the process of engineering blasting, blast holes of a certain depth are usually drilled, and then explosives are filled in through a charging device, thus requiring a charging device for engineering blasting.

[0003] Chinese Patent No. CN220931886U discloses a charging device for blasting engineering, comprising: a base, two bases each having an adjustment port on their top, and the inner walls of the two adjustment ports being slidably connected to the same adjustment platform; a gear opening on one outer wall of the adjustment platform; and the two outer walls of one base being connected to the same shaft via bearings; a drive gear is fixedly connected to the outer wall of the shaft, the drive gear being located inside one of the adjustment ports and meshing with the gear opening; a rocker arm is fixedly connected to one end of the shaft, and the two inner walls of one of the adjustment ports are fixedly connected to the same connecting rod. This charging device for blasting engineering, when filled with explosives, allows for height adjustment of the device, enabling the discharge tube to enter the borehole, preventing explosives from scattering outside the borehole due to external factors during discharge, thus avoiding resource waste and improving the device's effectiveness.

[0004] Although the aforementioned explosive charging device for blasting projects can adjust the height of the device when filling explosives so that the discharge pipe can enter the interior of the borehole, the discharge port of the charging device is fixed, making it difficult to select a suitable discharge pipe according to the size of the borehole. This can easily affect the efficiency and effectiveness of charging due to mismatched discharge pipes. Therefore, we propose an explosive charging device for engineering blasting. Utility Model Content

[0005] To address the problem in the aforementioned background technology where the discharge port of the charging device is fixed, making it difficult to select a suitable discharge pipe based on the size of the blast hole, and easily affecting the efficiency and effectiveness of charging due to mismatched pipes, this utility model provides a charging device for engineering blasting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a charging device for engineering blasting, comprising a support base and a charging container, wherein a lifting hydraulic rod is installed inside the support base, a lifting seat is fixed above the lifting hydraulic rod, and a charging container is fixed inside the lifting seat;

[0007] The bottom of the medicine container is fixed with a discharge port, and a first discharge pipe is movably connected to the lower part of the discharge port. A second discharge pipe is movably connected to the lower part of the first discharge pipe. Leak-proof gaskets are fixedly connected to the outer walls of the discharge port, the first discharge pipe, and the second discharge pipe.

[0008] As a preferred embodiment of the explosive charging device for engineering blasting according to this utility model, a cover is installed on the top of the explosive charging tank, and a feed inlet is provided on one side of the top of the cover.

[0009] As a preferred embodiment of the explosive charging device for engineering blasting according to this utility model, a drive motor is bolted to the middle of the upper part of the cover, a linkage rod is fixed to the drive end of the drive motor, and a mixing rod is welded to the outer wall of the linkage rod.

[0010] As a preferred embodiment of the explosive charging device for engineering blasting according to this utility model, the first discharge pipe is telescopically connected to the discharge port, and the second discharge pipe is telescopically connected to the first discharge pipe.

[0011] As a preferred embodiment of the explosive charging device for engineering blasting according to this utility model, positioning holes are provided on both sides of the discharge port and the outer wall of the first discharge pipe, and positioning bolts are installed inside the positioning holes.

[0012] As a preferred embodiment of the explosive charging device for engineering blasting according to this utility model, the lifting hydraulic rod forms a telescopic structure between the lifting seat and the explosive charging tank.

[0013] In a preferred embodiment of this utility model for a charging device used in engineering blasting, the discharge port, the first discharge pipe, and the second discharge pipe all penetrate the interior of the leak-proof rubber gasket.

[0014] Compared with the prior art, the beneficial effects of this utility model are: In this application, the overall lifting of the charging tank is driven by the lifting hydraulic rod, so that the discharge port or extended discharge pipe can be accurately inserted into the blast hole of different sizes. This prevents the problem that the discharge port of the charging device is fixed, making it difficult to select the appropriate discharge pipe according to the size of the blast hole. It also prevents the problem that the efficiency and effect of charging are affected by the mismatch of the material pipe. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the feed inlet in this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0020] Figure 5 This is a schematic diagram of the external structure of the feed inlet of this utility model.

[0021] In the diagram: 1. Support base; 2. Lifting base; 3. Medicine filling tank; 4. Cover; 5. Feed inlet; 6. Drive motor; 7. Linkage rod; 8. Mixing rod; 9. Discharge port; 10. First discharge pipe; 11. Second discharge pipe; 12. Positioning hole; 13. Positioning bolt; 14. Leak-proof rubber gasket; 15. Lifting hydraulic rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] like Figures 1-5 As shown;

[0025] A charging device for engineering blasting includes a support base 1 and a charging container 3. A lifting hydraulic rod 15 is installed inside the support base 1. A lifting seat 2 is fixed above the lifting hydraulic rod 15. The charging container 3 is fixed inside the lifting seat 2. A discharge port 9 is fixed at the bottom of the charging container 3. A first discharge pipe 10 is movably connected to the lower part of the discharge port 9. A second discharge pipe 11 is movably connected to the lower part of the first discharge pipe 10. Leak-proof rubber gaskets 14 are fixedly connected to the outer walls of the discharge port 9, the first discharge pipe 10, and the second discharge pipe 11.

[0026] In this implementation plan: the lifting hydraulic rod 15 drives the overall lifting of the charging tank 3, so that the discharge port 9 or the extended discharge pipe can be accurately inserted into the blast holes of different sizes. This prevents the discharge port 9 of the charging device from being fixed, making it difficult to select the appropriate discharge pipe according to the size of the blast hole. This can easily lead to problems such as the efficiency and effect of charging being affected by the mismatch of the material pipe.

[0027] Furthermore:

[0028] In an optional embodiment, a cover 4 is installed on the top of the medicine container 3, and a feed inlet 5 is provided on one side of the top of the cover 4.

[0029] In this implementation plan: the feed port 5 facilitates the loading of explosives, and the cover 4 forms a sealed environment after being closed, preventing the explosives from being exposed to humid air and causing them to clump.

[0030] Furthermore:

[0031] In an optional embodiment, a drive motor 6 is bolted to the center of the cover 4, and a linkage rod 7 is fixed to the drive end of the drive motor 6. A mixing rod 8 is welded to the outer wall of the linkage rod 7.

[0032] In this implementation plan: the drive motor 6 drives the mixing rod 8 through the linkage rod 7 to break up the clumps of explosives, keep the explosives dynamic, and avoid the stratification of explosives caused by density differences.

[0033] Furthermore:

[0034] In an optional embodiment, the first discharge pipe 10 is telescopically connected to the discharge port 9, and the second discharge pipe 11 is telescopically connected to the first discharge pipe 10.

[0035] In this implementation plan: the length and pipe size are adjusted by stretching the discharge pipe, so that the discharge port 9 or the extended discharge pipe can be accurately inserted into the blast holes of different sizes.

[0036] Furthermore:

[0037] In an optional embodiment, positioning holes 12 are provided on both sides of the outer wall of the discharge port 9 and the first discharge pipe 10, and positioning bolts 13 are installed inside the positioning holes 12.

[0038] In this implementation plan: after the positioning bolt 13 is inserted into the positioning hole 12, it can position the corresponding pipe.

[0039] Furthermore:

[0040] In an optional embodiment, the lifting hydraulic rod 15 forms a telescopic structure between the lifting seat 2 and the medicine tank 3.

[0041] In this implementation plan: the lifting hydraulic rod 15 can drive the charging tank 3 to rise and fall through the lifting seat 2, so as to facilitate the insertion of the pipeline into the blast hole.

[0042] Furthermore:

[0043] In an optional embodiment, the discharge port 9, the first discharge pipe 10, and the second discharge pipe 11 all penetrate the interior of the leak-proof rubber pad 14.

[0044] In this implementation plan: the leak-proof gasket 14 can block the blast hole, forming a relatively sealed environment to prevent powder return.

[0045] Working principle: First, move the device to the desired location. Load the explosive into the charging tank 3 through the feed port 5. Use a ram to check the depth, angle, and internal condition of the borehole. Then, use a compressed air blower to clean the rock powder inside the hole to prevent the explosive from being loosely packed. Next, start the drive motor 6. The drive motor 6 drives the linkage rod 7 and the mixing rod 8 to rotate, which facilitates the uniform mixing of the explosive. Then, align the discharge port 9 with the borehole position. Next, select the appropriate discharge pipe according to the borehole size. If discharge port 9 is selected directly, start the lifting hydraulic rod 15. The lifting hydraulic rod 15 drives the lifting seat 2 and the charging tank 3 to rise and fall until the discharge port 9 is inserted into the borehole. If the first discharge pipe 10 is selected, pull the first discharge pipe 10 downward and then insert the positioning bolt 13 into the positioning hole 12. The first discharge pipe 10 and the discharge port 9 are fixed. Then, if the second discharge pipe 11 is selected, the first discharge pipe 10 is stretched and the second discharge pipe 11 is stretched downward. The positioning bolt 13 is inserted into the positioning hole 12 to fix the first discharge pipe 10 and the second discharge pipe 11 respectively. Finally, the lifting hydraulic rod 15 is started again. The lifting hydraulic rod 15 drives the lifting seat 2 and the charging tank 3 to rise and fall until the corresponding discharge pipe extends into the borehole. Then the discharge port 9 is opened to discharge the explosive. At the same time, the anti-leakage rubber gasket 14 can block the borehole during the discharge process to form a relatively sealed environment and prevent powder return. The explosive filling method is the existing technology and is consistent with the existing general charging structure. The compressed air driven charging device is used, and the charging pressure is controlled by the pressure regulating valve to achieve continuous charging.

[0046] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A charge device for engineering blasting, comprising a support seat (1) and a charge can (3), characterized in that: The support base (1) is equipped with a lifting hydraulic rod (15), and a lifting seat (2) is fixed above the lifting hydraulic rod (15). A medicine container (3) is fixed inside the lifting seat (2). The bottom of the medicine container (3) is fixed with a discharge port (9), and a first discharge pipe (10) is movably connected to the lower part of the discharge port (9). A second discharge pipe (11) is movably connected to the lower part of the first discharge pipe (10). Leak-proof rubber gaskets (14) are fixedly connected to the outer walls of the discharge port (9), the first discharge pipe (10), and the second discharge pipe (11).

2. A charge device for engineering blasting according to claim 1, characterised in that: The medicine container (3) is equipped with a cover (4) on its upper part, and a feed inlet (5) is provided on one side of the upper part of the cover (4).

3. A charge device for engineering blasting according to claim 2, characterised in that: A drive motor (6) is bolted to the middle of the top of the cover (4). A linkage rod (7) is fixed to the drive end of the drive motor (6). A mixing rod (8) is welded to the outer wall of the linkage rod (7).

4. A charge device for engineering blasting according to claim 1, characterised in that: The first discharge pipe (10) is telescopically connected to the discharge port (9), and the second discharge pipe (11) is telescopically connected to the first discharge pipe (10).

5. A charge device for engineering blasting according to claim 1, characterized in that: Positioning holes (12) are provided on both sides of the outer wall of the discharge port (9) and the first discharge pipe (10), and positioning bolts (13) are installed inside the positioning holes (12).

6. A charge device for engineering blasting according to claim 1, characterized in that: The lifting hydraulic rod (15) forms a telescopic structure between the lifting seat (2) and the medicine tank (3).

7. A charge device for engineering blasting according to claim 1, characterized in that: The discharge port (9), the first discharge pipe (10) and the second discharge pipe (11) all penetrate the interior of the leak-proof rubber pad (14).

Citation Information

Patent Citations

  • Charging device for blasting engineering

    CN220931886U