Packing structure for rock mountain gas blast hole

By designing a tamping gun with both striking and disassembly components, the problems of easy clogging and uneven filling of gas blasting holes in rocky hills were solved, achieving smooth and uniform material feeding and improving blasting efficiency and safety.

CN223925619UActive Publication Date: 2026-02-17淄博圣世达爆破工程有限公司
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Patent Information

Application Number
CN202520684486.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-02-17
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing rock blasting hole packing technology is prone to blockage and uneven packing, which affects the blasting effect and poses safety hazards.

Method used

The tamping gun, designed with a striking component and a disassembly component, uses a motor-driven transmission system to swing the striking head to prevent clogging. The push ring and ball-locking structure facilitate the disassembly and assembly of the feed tube, ensuring uniform material distribution.

Benefits of technology

It effectively prevents blockage of the feed pipe, ensures that the packing material is evenly distributed in the blast hole, and improves blasting efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of blast hole filling, and discloses a filling structure for gas blast holes of rocky mountains, which comprises a filling gun, one end of the filling gun is fixedly connected with a handle, the inside of the filling gun is slidably connected with a blanking pipe, the outer wall of the filling gun is provided with a knocking assembly, the inside of the filling gun is provided with a dismounting assembly, and the dismounting assembly is connected with the handle. The knocking assembly comprises a knocking head, the knocking head is arranged on the outer wall of the discharging pipe, a fixing column is fixedly connected to the outer wall of the filling gun, a sliding column is fixedly connected to the outer wall of the knocking head, and the outer wall of the sliding column is slidably connected to the outer wall of the fixing column. According to the blanking device, the motor drives the transmission column and the offset wheel and is matched with the rolling ball and the universal wheel, so that the sliding column rotates on the outer wall of the fixed column, the knocking head knocks on the outer wall of the blanking pipe, internal gaps are reduced, and the problems that the blanking pipe is prone to blockage and non-uniform filling during blanking are solved; and the discharging passing ability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of blast hole filling technology, and in particular to a filling structure for gas blast holes in rocky hills. Background Technology

[0002] In engineering operations such as rock mining, gas blasting is widely used as an efficient and relatively safe method of rock breaking. The filling structure used for gas blasting holes in rock mining plays a crucial role in ensuring the blasting effect and safety. A good filling structure can effectively apply the explosive energy to the rock, avoid energy loss, and prevent the excessive spread of hazards such as flying rocks and shock waves. Its performance directly affects the effectiveness of the entire blasting operation.

[0003] In existing technologies for filling gas blasting holes in rocky hills, conventional mechanical structures are typically used. The common method of feeding material is to rely solely on gravity to pour the filling material from the feeding pipe into the blasting hole. In this method, the feeding pipe is generally a fixed structure and lacks effective auxiliary means for the feeding process. Its technical principle is mainly based on the simple gravity flow of materials. The filling material is placed on the top of the feeding pipe manually or mechanically, and the material falls into the blasting hole under its own gravity.

[0004] However, this traditional filling technology for gas blasting holes in rocky hills has significant problems. Because it relies solely on gravity for feeding, the filling material is prone to blockage when passing through the feeding pipe due to its own characteristics such as agglomeration and stickiness, as well as unevenness inside the feeding pipe. At the same time, it is difficult to ensure that the filling material is evenly distributed in the blasting hole, resulting in frequent uneven filling, which seriously affects the blasting effect, fails to fully utilize the explosive energy, and may even cause safety hazards. Therefore, a filling structure for gas blasting holes in rocky hills is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a filling structure for gas blasting holes in rocky hills, which aims to improve the problems of blockage and uneven filling that easily occur when the feed pipe is feeding material in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tamping structure for a gas blasting hole in a rocky hill includes a tamping gun, one end of which is fixedly connected to a handle, a feed tube is slidably connected inside the tamping gun, a striking component is provided on the outer wall of the tamping gun, and a disassembly and assembly component is provided inside the tamping gun.

[0008] The striking assembly includes a striking head disposed on the outer wall of the feed tube. A fixed column is fixedly connected to the outer wall of the filling gun. A sliding column is fixedly connected to the outer wall of the striking head. The outer wall of the sliding column is slidably connected to the outer wall of the fixed column. A caster is fixedly connected to the outer wall of the sliding column. A motor is fixedly connected to the outer wall of the filling gun. A transmission belt is fixedly connected to the output end of the motor. A transmission column is disposed inside the transmission belt. An eccentric wheel is fixedly connected to one end of the transmission column. A connecting column is fixedly connected to the outer wall of the eccentric wheel. A ball is fixedly connected to the other end of the connecting column. The outer wall of the ball is slidably connected to the inside of the caster.

[0009] As a further description of the above technical solution:

[0010] The assembly / disassembly assembly includes a retaining ball and a retaining groove formed inside the feed tube, with the outer wall of the retaining ball slidably connected to the inside of the retaining groove.

[0011] As a further description of the above technical solution:

[0012] The tamping gun has a groove inside, and the outer wall of the ball is slidably connected to the inside of the groove.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the filling gun is slidably connected to a push ring, and the outer wall of the filling gun is fixedly connected to a fixing ring.

[0015] As a further description of the above technical solution:

[0016] A retaining ring is fixedly connected to one end of the push ring, and a pressure ring is fixedly connected to the inner wall of the push ring.

[0017] As a further description of the above technical solution:

[0018] A baffle is fixedly connected to the outer wall of the filling gun, and the baffle is in contact with the pressure ring.

[0019] As a further description of the above technical solution:

[0020] A spring is fitted on the outer wall of the filling gun. One end of the spring is fixedly connected to the outer wall of the fixing ring, and the other end of the spring is fixedly connected to the outer wall of the pressure ring.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the striking head achieves its swing function through a starting motor. When the starting motor is turned, the motor drives the transmission column and the eccentric wheel, and in conjunction with the ball and the universal wheel, the sliding column rotates on the outer wall of the fixed column, thereby striking the striking head on the outer wall of the feeding pipe, reducing internal gaps, solving the problem of easy blockage and uneven filling when feeding material into the feeding pipe, and improving the feeding throughput of the device.

[0023] 2. In this utility model, the ball moves by pushing the push ring. When the push ring is pushed, the push ring drives the retaining ring and the pressure ring, and in conjunction with the spring, the ball slides inside the slot, thus facilitating the disassembly and assembly of the feed tube and making it easy to maintain and replace. This solves the problem that existing disassembly and assembly methods require multiple tools and are not easy to disassemble, thus improving the convenience of the device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a plugging structure for a gas blasting hole in a rocky hill, as proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the striking head for a filling structure of a gas blasting hole in a rocky hill, as proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the internal structure of the push ring of a filling structure for a gas blasting hole in a rocky hill, as proposed in this utility model.

[0027] Legend:

[0028] 1. Filler gun; 2. Handle; 3. Feed tube; 4. Knocking head; 5. Fixed column; 6. Sliding column; 7. Caster wheel; 8. Ball bearing; 9. Connecting column; 10. Eccentric wheel; 11. Drive column; 12. Drive belt; 13. Motor; 14. Baffle; 15. Retaining ring; 16. Push ring; 17. Spring; 18. Fixed ring; 19. Pressure ring; 20. Slide groove; 21. Ball retainer; 22. Slot. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1 and Figure 2The present invention provides an embodiment of a filling structure for a gas blasting hole in a rocky hill, comprising a filling gun 1, a handle 2 fixedly connected to one end of the filling gun 1, the surface of the handle 2 being treated with anti-slip material and ergonomically designed, the handle 2 being made of soft and elastic rubber, which allows the operator to maintain a comfortable and stable grip during long-term operation, a feeding tube 3 being slidably connected inside the filling gun 1, the feeding tube 3 being made of stainless steel with a smooth inner wall, this material not only effectively reduces the friction between the filling material and the tube wall, ensuring smooth feeding, but also has good corrosion resistance, a striking component is provided on the outer wall of the filling gun 1, and a disassembly component is provided inside the filling gun 1;

[0031] The striking assembly includes a striking head 4, which is made of high-hardness alloy steel and is hemispherical. Its curvature perfectly fits the outer wall of the feed tube 3, effectively transmitting striking force. The striking head 4 is set on the outer wall of the feed tube 3. A fixed post 5 is fixedly connected to the outer wall of the filling gun 1. A sliding post 6 is fixedly connected to the outer wall of the striking head 4. The outer wall of the sliding post 6 is slidably connected to the outer wall of the fixed post 5. A universal wheel 7 is fixedly connected to the outer wall of the sliding post 6. The universal wheel 7 adopts a high-precision bearing structure to ensure that the ball 8 can slide flexibly within it. A motor 13 is fixedly connected to the outer wall of the filling gun 1. A transmission belt 12 is fixedly connected to the output end of the motor 13. A transmission post 11 is set inside the transmission belt 12. An eccentric wheel 10 is fixedly connected to one end of the transmission post 11. A connecting post 9 is fixedly connected to the outer wall of the eccentric wheel 10. A ball 8 is fixedly connected to the other end of the connecting post 9. The outer wall of the ball 8 is slidably connected inside the universal wheel 7.

[0032] Specifically, during the packing operation of the gas blasting hole in the rock mine, in order to ensure the smooth feeding of the material through the feeding pipe 3 and the uniform distribution of the packing material in the blasting hole, the motor 13 can be started simultaneously when the packing operation begins. After the motor 13 starts, its power is transmitted by driving the transmission belt 12 to rotate. The rotation of the transmission belt 12 further drives the transmission column 11 connected to it to rotate. As the transmission column 11 rotates, the eccentric wheel 10 connected to it also begins to rotate. The rotation of the eccentric wheel 10 drives the connecting column 9 to rotate, which in turn causes the ball 8 to slide inside the universal wheel 7. This sliding causes the sliding column 6 to slide on the outer wall of the fixed column 5, which ultimately drives the striking head 4 to swing. The swing of the striking head 4 will strike the feeding pipe 3 in a regular manner, effectively preventing the packing material from blocking in the feeding pipe 3 and avoiding the problem of uneven distribution in the blasting hole, thus greatly improving the efficiency and quality of the packing operation.

[0033] Reference Figure 1 and Figure 3The assembly and disassembly components include a ball 21 and a groove 22 inside the feed tube 3. The outer wall of the ball 21 is slidably connected to the inside of the groove 22. The ball 21 is made of high-strength hard alloy material, which has extremely high hardness and wear resistance and can withstand frequent sliding and squeezing without being easily damaged. Its surface is finely polished and has a very high smoothness to ensure smooth sliding in the slot 22 of the feed tube 3 and the slide groove 20 inside the filling gun 1. The slide groove 20 is opened inside the filling gun 1. The outer wall of the ball 21 is slidably connected to the inside of the slide groove 20. The outer wall of the filling gun 1 is slidably connected to the push ring 16. The push ring 16 is made of engineering plastic, which is lightweight and has a certain strength. The surface is also treated with anti-slip treatment, making it convenient for the operator to hold and push. The outer wall of the filling gun 1 is fixedly connected to the fixing ring 18. One end of the push ring 16 is fixedly connected to the retaining ring 15. The inner wall of the push ring 16 is fixedly connected to the pressure ring 19. The outer wall of the filling gun 1 is fixedly connected to the baffle 14, which is in contact with the pressure ring 19. The outer wall of the filling gun 1 is fitted with a spring 17. One end of the spring 17 is fixedly connected to the outer wall of the fixing ring 18, and the other end of the spring 17 is fixedly connected to the outer wall of the pressure ring 19.

[0034] Specifically, during the operation of the gas blasting hole in the rocky hill, the feed pipe 3 often needs to be replaced according to different blasting requirements. When the feed pipe 3 needs to be replaced, the operator can push the push ring 16. The movement of the push ring 16 will drive the pressure ring 19 to move together. During this process, the pressure ring 19 will compress the spring 17, and the original limiting effect of the spring 17 on the retaining ball 21 will be released. Moreover, the movement of the push ring 16 will also drive the retaining ring 15 to move. The retaining ring 15 will further limit the retaining ball 21 to prevent it from slipping out during operation. At this time, the retaining ball 21 can slide freely inside the sliding groove 20. Then, the operator pulls the feed pipe 3 outward, and the retaining ball 21 will slide out from inside the retaining groove 22 as the feed pipe 3 moves. In this way, the feed pipe 3 can be removed smoothly. After removing the old feed tube 3, the operator selects a suitable feed tube 3 and inserts it into the corresponding position. When it reaches the appropriate position, the push ring 16 is released. At this time, the spring 17 rebounds and repositions the retaining ball 21, causing the retaining ball 21 to slide into the retaining groove 22, thereby fixing the new feed tube 3. In addition, the presence of the baffle 14 can also limit the push ring 16 to prevent it from slipping out and ensure the stability of the entire structure.

[0035] Working principle: During filling, the synchronously startable motor 13 drives the transmission belt 12 to rotate, which in turn drives the keyed transmission column 11 to rotate. The transmission column 11 then drives the eccentric wheel 10 to rotate, which in turn drives the connecting column 9 to rotate. This causes the ball 8 to slide inside the universal wheel 7, and the sliding column 6 to slide on the outer wall of the fixed column 5. This causes the striking head 4 to swing and strike the feed tube 3 to prevent internal blockage or uneven distribution.

[0036] In addition, when replacing the feed tube 3, the push ring 16 can be pushed, which drives the pressure ring 19 to move, compressing the spring 17 and releasing the restriction on the ball 21. At the same time, the retaining ring 15 is moved to further limit the ball 21 and prevent it from slipping out, so that the ball 21 can slide inside the slide groove 20. Then, the feed tube 3 is pulled out, and the ball 21 slides out from inside the slot 22. The feed tube 3 can then be removed. A suitable feed tube 3 is then placed and inserted into the appropriate position. The push ring 16 is released, and the spring 17 rebounds to limit the ball 21, allowing it to slide back into the slot 22 to fix the feed tube 3. The baffle 14 further limits the movement of the push ring 16 to prevent it from slipping out.

[0037] Finally, it should be noted that the above description is only 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. A tamping structure for gas blasting holes in rocky hills, comprising a tamping gun (1), characterized in that: The filling gun (1) has a handle (2) fixedly connected to one end, a feeding tube (3) slidably connected inside the filling gun (1), a striking component is provided on the outer wall of the filling gun (1), and a disassembly component is provided inside the filling gun (1). The striking assembly includes a striking head (4), which is disposed on the outer wall of the feed tube (3). A fixed column (5) is fixedly connected to the outer wall of the filling gun (1). A sliding column (6) is fixedly connected to the outer wall of the striking head (4). The outer wall of the sliding column (6) is slidably connected to the outer wall of the fixed column (5). A universal wheel (7) is fixedly connected to the outer wall of the sliding column (6). A motor (13) is fixedly connected to the outer wall of the filling gun (1). A transmission belt (12) is fixedly connected to the output end of the motor (13). A transmission column (11) is disposed inside the transmission belt (12). An eccentric wheel (10) is fixedly connected to one end of the transmission column (11). A connecting column (9) is fixedly connected to the outer wall of the eccentric wheel (10). A ball (8) is fixedly connected to the other end of the connecting column (9). The outer wall of the ball (8) is slidably connected to the inside of the universal wheel (7).

2. The plugging structure for gas blasting holes in rocky hills according to claim 1, characterized in that: The assembly and disassembly assembly includes a ball (21) and a slot (22) formed inside the feed tube (3), with the outer wall of the ball (21) slidably connected inside the slot (22).

3. The plugging structure for gas blasting holes in rocky hills according to claim 2, characterized in that: The filling gun (1) has a groove (20) inside, and the outer wall of the ball (21) is slidably connected to the groove (20).

4. The plugging structure for gas blasting holes in rocky hills according to claim 3, characterized in that: The outer wall of the filling gun (1) is slidably connected to a push ring (16), and the outer wall of the filling gun (1) is fixedly connected to a fixing ring (18).

5. A plugging structure for gas blasting holes in rocky hills according to claim 4, characterized in that: One end of the push ring (16) is fixedly connected to a retaining ring (15), and the inner wall of the push ring (16) is fixedly connected to a pressure ring (19).

6. A plugging structure for gas blasting holes in rocky hills according to claim 5, characterized in that: A baffle (14) is fixedly connected to the outer wall of the filling gun (1), and the baffle (14) is in contact with the pressure ring (19).

7. A plugging structure for gas blasting holes in rocky hills according to claim 6, characterized in that: The outer wall of the filling gun (1) is fitted with a spring (17), one end of the spring (17) is fixedly connected to the outer wall of the fixing ring (18), and the other end of the spring (17) is fixedly connected to the outer wall of the pressure ring (19).