Explosive cartridge delivery tube

Inventors: Feng Chen (Changzhi, CN); Junjie Cui (Changzhi, CN); Feng Liang (Changzhi, CN); Jiquan Qu (Changzhi, CN); Zhiqiang Yan (Changzhi, CN); Xuejun Ji (Changzhi, CN); Minjuan Xie (Changzhi, CN); Lianzhen Jia (Changzhi, CN); Keke Feng (Changzhi, CN); Zitao Yang (Changzhi, CN); Qiang Wang (Changzhi, CN)

Assignee: SHAN XI HUI FENG SPECIAL MOTOR VEHICLE CO., LTD.

F42D1/08 E21C37/00

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Quick Facts

Patent No.: US 12680800
App. No.: 19/007,517
Granted: Jul 14, 2026
Kind: B2

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Abstract

An explosive cartridge delivery tube is provided and includes an explosive delivery tube body, wherein the explosive delivery tube body has a length greater than a depth of a blast hole, an explosive delivery chamber is formed inside the explosive delivery tube body, the explosive delivery chamber is arranged in a length direction of the explosive delivery tube body in a running-through manner, and an internal diameter of the explosive delivery chamber is greater than a diameter of an explosive cartridge.

Claims (15)

1 . An explosive cartridge delivery tube comprising an explosive delivery tube body, wherein the explosive delivery tube body has a length greater than a depth of a blast hole, an explosive delivery chamber is formed inside the explosive delivery tube body and arranged in a length direction of the explosive delivery tube body in a running-through manner, and an internal diameter of the explosive delivery chamber is greater than a diameter of an explosive cartridge,

wherein an inner wall of the explosive delivery chamber is covered with a conductive film being grounded.

2 . The explosive cartridge delivery tube according to claim 1 , wherein an air delivery channel is formed on an inner wall of the explosive delivery chamber and extends in a length direction of the explosive delivery chamber, and an internal diameter of the air delivery channel is less than the internal diameter of the explosive delivery chamber.

3 . The explosive cartridge delivery tube according to claim 2 , wherein the air delivery channel comprises a plurality of air delivery channels uniformly distributed circumferentially around an axis of the explosive delivery chamber.

4 . The explosive cartridge delivery tube according to claim 1 , wherein an outer surface of the explosive delivery tube body is smooth, and the explosive delivery tube body is elastic.

5 . The explosive cartridge delivery tube according to claim 4 , wherein the explosive delivery tube body is made of plastic.

6 . The explosive cartridge delivery tube according to claim 1 , wherein a wire slot is formed on an outer surface of the explosive delivery tube body, configured to receive a detonator wire or a detonating cord, located at an end of the explosive delivery tube body, and in communication with the explosive delivery chamber.

7 . The explosive cartridge delivery tube according to claim 1 , further comprising a pneumatic withdrawal assembly configured for pneumatically driving the explosive delivery tube body to withdraw from the blast hole.

8 . The explosive cartridge delivery tube according to claim 7 , wherein the pneumatic withdrawal assembly comprises a reaction force base plate, a withdrawal cylinder and an explosive delivery tube fixing member, one end of the withdrawal cylinder is mounted on the reaction force base plate, and the explosive delivery tube fixing member is configured to fix and mount the explosive delivery tube body at an other end of the withdrawal cylinder.

9 . The explosive cartridge delivery tube according to claim 8 , wherein a movable plate is mounted at one end of the withdrawal cylinder, the explosive delivery tube fixing member comprises a first fixing block and a second fixing block, the first fixing block is in sliding fit with one side of the movable plate and provided with a first fixing hole; and

the second fixing block is in sliding fit with the other side of the movable plate, provided with a second fixing hole, detachably mounted on the first fixing block, and in communication with the first fixing hole to form an explosive delivery tube fixing hole when the second fixing block is mounted on the first fixing block.

10 . An explosive cartridge delivery tube comprising an explosive delivery tube body, wherein the explosive delivery tube body has a length greater than a depth of a blast hole, an explosive delivery chamber is formed inside the explosive delivery tube body and arranged in a length direction of the explosive delivery tube body in a running-through manner, and an internal diameter of the explosive delivery chamber is greater than a diameter of an explosive cartridge,

wherein an air delivery channel is formed on an inner wall of the explosive delivery chamber and extends in a length direction of the explosive delivery chamber, and an internal diameter of the air delivery channel is less than the internal diameter of the explosive delivery chamber.

11 . An explosive cartridge delivery tube comprising an explosive delivery tube body, wherein the explosive delivery tube body has a length greater than a depth of a blast hole, an explosive delivery chamber is formed inside the explosive delivery tube body and arranged in a length direction of the explosive delivery tube body in a running-through manner, and an internal diameter of the explosive delivery chamber is greater than a diameter of an explosive cartridge,

wherein the air delivery channel comprises a plurality of air delivery channels uniformly distributed circumferentially around an axis of the explosive delivery chamber.