A connection device for a blasting tube

By designing a sliding groove, positioning post, and threaded rod structure within the connecting pipe, the stability problem of the blasting pipe connection was solved, achieving a stable connection of the charging pipe, preventing it from falling off inside the blasting hole, and improving the blasting effect.

CN224499287UActive Publication Date: 2026-07-14ANHUI LEIMING BLASTING ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI LEIMING BLASTING ENG CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing blasting tube connection devices have low connection stability during use, which may cause the blasting tube to fall off inside the blast hole, affecting the blasting effect.

Method used

A connection device was designed, including a connecting pipe and a connecting assembly. Through a combination structure of sliding groove, positioning post, locking block and threaded rod, a stable connection of the charging pipe is achieved.

Benefits of technology

The cooperation of the sliding groove and the positioning post ensures that the charging tube and the connecting tube are locked together, preventing them from falling off and improving the stability and safety of the connection.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a kind of connecting device for blasting pipe, it includes: connecting pipe, the outside of the connecting pipe is provided with connecting assembly;The connecting assembly includes the placement block being arranged in the front of the connecting pipe, the inside of the placement block is vertically provided with sliding rod.The utility model provides a kind of connecting device for blasting pipe, two need to be connected by the left and right sides of connecting pipe respectively into the inside of connecting pipe by splicing, two positioning columns are opened first by this time, and when the bottom of charge pipe is completely entered into the inside of sliding groove, due to the space of sliding is vacated, under the action of two positioning springs, two positioning columns move inward, and then are clamped in the gap, then rotate threaded rod and drive push plate to move upward, and then push clamping block to be clamped in the inside of bayonet, to realize the stable connection of charge pipe, since charge pipe and connecting pipe are mutually jammed, thereby avoid the situation of falling off when using.
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Description

Technical Field

[0001] This utility model relates to the field of connecting devices, and in particular to a connecting device for rupture tubes. Background Technology

[0002] A detonating detonator is a sensitive initiation device used to detonate explosives. It typically consists of a detonator and a detonation transmission element. The main types include ordinary electric detonators (detonated by electric current), detonating cord detonators (detonated using a shock wave, resistant to interference), and electronic detonators (programmable delay, high precision). It is widely used in mining, demolition, and military fields, and requires operation by qualified personnel to ensure safety.

[0003] The connection device for blasting tubes is used to safely and reliably connect multiple blasting tubes in series or in parallel to ensure that the detonation signal is accurately transmitted to the entire blasting network. Its core functions include signal transmission, building a blasting network, providing safety isolation, and realizing delay control, thereby ensuring that all explosives are detonated accurately as planned.

[0004] In related technologies, application number CN202321746994.2 provides a quick connection device for pre-splitting explosive charging tubes, solving the technical problem that existing charging tubes are connected by tape, which has poor safety and cannot guarantee the reliability of the connection after the charge reaches a certain level, thus affecting the subsequent blasting effect. However, in use, this device relies solely on clips and positioning holes to connect two blasting tubes, resulting in low stability. When the blasting tubes are placed inside the blasting hole, friction with the inner wall of the blasting hole may cause the two blasting tubes to detach from the connection device. Furthermore, the device also has barbs, which may affect the assembly of the blasting tubes themselves.

[0005] Therefore, it is necessary to provide a connection device for rupture tubes to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a connection device for rupture tubes, which solves the problem that some existing rupture tube connection devices have low connection stability during use and may fall off when the rupture tube is placed into the rupture hole.

[0007] To solve the above-mentioned technical problems, this utility model provides a connecting device for a rupture tube, comprising: a connecting pipe, wherein a connecting component is provided on the outer side of the connecting pipe;

[0008] The connecting assembly includes a placement block disposed on the front side of the connecting tube. A sliding rod is vertically disposed on the inner side of the placement block. A push plate is disposed on the peripheral side of the sliding rod that can slide up and down along its length. A guide rod is longitudinally disposed on the inner side of the placement block. A locking block is disposed on the peripheral side of the guide rod that can slide back and forth along its length. The back of the locking block penetrates the front side of the connecting tube and extends to its inner side.

[0009] Preferably, two sliding grooves are provided at the bottom of the inner side of the connecting tube, and a drug loading tube is provided on the inner side of the two sliding grooves so as to slide left and right. A slot for cooperating with the card block is provided on the outer side of the two drug loading tubes.

[0010] Preferably, two slots are provided below the sliding groove and inside the connecting pipe, and positioning posts are provided on the inner sides of the two slots that can slide back and forth. The bottom of the loading tube is provided with a notch for use with the positioning posts.

[0011] Preferably, a positioning spring is provided on the inner side of each of the two slots, and the opposite ends of the two positioning springs are respectively fixedly connected to the ends of the two positioning posts that are separated from each other.

[0012] Preferably, the top of the push plate is rotatably provided with a threaded rod, the top end of the threaded rod passing through the inner side of the placement block and extending to its top, and the peripheral side of the threaded rod being threadedly connected to the top of the placement block.

[0013] Preferably, a rotating block is provided at the top of the threaded rod and above the placement block.

[0014] Compared with related technologies, the connection device for rupture tubes provided by this utility model has the following advantages:

[0015] This utility model provides a connecting device for blasting tubes. Two charging tubes to be connected are inserted into the inner side of the connecting tube from the left and right sides respectively. At this time, the two positioning pins are first pushed open. When the bottom of the charging tube is completely inserted into the sliding groove, the space at the sliding part is freed up. Under the action of the two positioning springs, the two positioning pins move inward and then lock into the notch. Then, rotating the threaded rod drives the push plate to move up, thereby pushing the locking block to lock into the inner side of the locking hole, thus achieving a stable connection of the charging tubes. Since the charging tube and the connecting tube are locked together, the situation of falling off during use is avoided. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of a connection device for rupture tubes provided by this utility model;

[0017] Figure 2This is a structural diagram showing the connection tube and the loading tube in their separated states;

[0018] Figure 3 This is a structural schematic diagram of the right-side cross-sectional view of the connecting pipe section;

[0019] Figure 4 This is a schematic diagram of the structure of the loading tube.

[0020] The following are the labels in the diagram: 1. Connecting pipe; 2. Connecting assembly; 21. Placement block; 22. Sliding rod; 23. Push plate; 24. Guide rod; 25. Locking block; 26. Sliding groove; 27. Drug loading tube; 28. Bayonet; 29. ​​Slot; 3. Positioning post; 4. Notch; 5. Positioning spring; 6. Threaded rod; 7. Rotating block. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 A connecting device for a rupture tube includes: a connecting pipe 1, and a connecting component 2 disposed on the outer side of the connecting pipe 1;

[0023] The connecting component 2 includes a placement block 21 disposed on the front side of the connecting tube 1. A sliding rod 22 is vertically disposed on the inner side of the placement block 21. A push plate 23 is disposed on the peripheral side of the sliding rod 22, which can slide up and down along its length. A guide rod 24 is longitudinally disposed on the inner side of the placement block 21. A locking block 25 is disposed on the peripheral side of the guide rod 24, which can slide back and forth along its length. The back of the locking block 25 penetrates the front side of the connecting tube 1 and extends to its inner side.

[0024] When it is necessary to connect two charge tubes 27, one end of the charge tube 27 is slidably inserted into the inside of the connecting tube 1. Then, by rotating the threaded rod 6, the push plate 23 at its bottom end is raised. As the push plate 23 rises, it gradually pushes the locking block 25 toward the locking slot 28. After the push plate 23 is fully raised, it will abut against the side of the locking block 25 away from the locking slot 28 to prevent the locking slot 28 from retracting and disengaging. At the same time, a guide rod 24 is provided to prevent the locking block 25 from shifting at an angle.

[0025] Two sliding grooves 26 are provided at the bottom of the inner side of the connecting tube 1. The inner side of the two sliding grooves 26 is provided with a drug loading tube 27 that can slide left and right. The outer side of the two drug loading tubes 27 is provided with a bayonet 28 for use with the card block 25.

[0026] When the two charge tubes 27 slide into the connecting tube 1, their adjacent ends will abut against each other, thus avoiding gaps.

[0027] Below the sliding groove 26 and inside the connecting pipe 1, there are two slots 29. The inner sides of the two slots 29 are provided with positioning posts 3 that can slide back and forth. The bottom of the loading tube 27 is provided with a notch 4 for use with the positioning posts 3.

[0028] When the charging tube 27 is slid into the sliding groove 26, the two positioning pins 3 will be pushed open first. When the bottom of the charging tube 27 is completely inside the sliding groove 26, the space at the sliding part is freed up. Under the action of the two positioning springs 5, the two positioning pins 3 move inward and then lock into the notch 4 to prevent the charging tube 27 from moving out by itself.

[0029] A positioning spring 5 is provided on the inner side of each of the two slots 29, and the opposite ends of the two positioning springs 5 ​​are respectively fixedly connected to the ends of the two positioning posts 3 that are separated from each other.

[0030] The top of the push plate 23 is rotatably provided with a threaded rod 6. The top end of the threaded rod 6 passes through the inner side of the placement block 21 and extends to its top. The peripheral side of the threaded rod 6 is threadedly connected to the top of the placement block 21.

[0031] A rotating block 7 is provided at the top of the threaded rod 6 and above the placement block 21.

[0032] The working principle of the connection device for rupture tubes provided by this utility model is as follows:

[0033] Step 1: In use, insert the two charge tubes 27 that need to be connected into the inner side of the connecting tube 1 from the left and right sides respectively, so that the opposite sides of the two charge tubes 27 abut against each other. Then, the rotation of the rotating block 7 drives the rotation of the threaded rod 6, which in turn drives the push plate 23 to move upward. The upward movement of the push plate 23 will push the locking block 25 to move closer to the charge tube 27, and finally make one side of the locking block 25 lock into the bayonet 28 opened inside the charge tube 27, thus initially completing the connection of the charge tubes 27.

[0034] Step 2: During the process of sliding the charging tube 27 into the inner side of the connecting tube 1, the two positioning pins 3 will be pushed open first. When the bottom of the charging tube 27 is completely inside the sliding groove 26, the space at the sliding part is freed up. Under the action of the two positioning springs 5, the two positioning pins 3 move inward and then lock into the notch 4 to prevent the charging tube 27 from moving out by itself.

[0035] Compared with related technologies, the connection device for rupture tubes provided by this utility model has the following advantages:

[0036] The two charging tubes 27 that need to be connected are inserted into the inner side of the connecting tube 1 from the left and right sides respectively. At this time, the two positioning pins 3 will be pushed open first. When the bottom of the charging tube 27 is completely inserted into the sliding groove 26, the space at the sliding part is freed up. Under the action of the two positioning springs 5, the two positioning pins 3 move inward and then lock into the notch 4. Then, the threaded rod 6 is rotated to drive the push plate 23 to move upward, which in turn pushes the locking block 25 to lock into the inner side of the locking slot 28, thereby achieving a stable connection of the charging tube 27. Since the charging tube 27 and the connecting tube 1 are locked together, the situation of falling off during use is avoided.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A connecting device for a rupture tube, characterized in that, include: A connecting pipe (1) is provided with a connecting component (2) on its outer side; The connecting assembly (2) includes a placement block (21) disposed on the front side of the connecting tube (1). A sliding rod (22) is vertically disposed on the inner side of the placement block (21). A push plate (23) is disposed on the peripheral side of the sliding rod (22) that can slide up and down along its length. A guide rod (24) is longitudinally disposed on the inner side of the placement block (21). A locking block (25) is disposed on the peripheral side of the guide rod (24) that can slide back and forth along its length. The back of the locking block (25) penetrates the front side of the connecting tube (1) and extends to its inner side.

2. The connecting device for a rupture tube according to claim 1, characterized in that, The bottom of the inner side of the connecting tube (1) has two sliding grooves (26), and the inner side of the two sliding grooves (26) is provided with a drug loading tube (27) that can slide left and right. The outer side of the two drug loading tubes (27) is provided with a bayonet (28) for use with the card block (25).

3. A connecting device for a rupture tube according to claim 2, characterized in that, Below the sliding groove (26) and inside the connecting pipe (1), there are two slots (29). The inner sides of the two slots (29) are provided with positioning posts (3) that can slide back and forth. The bottom of the loading tube (27) is provided with a notch (4) for use with the positioning posts (3).

4. A connecting device for a rupture tube according to claim 3, characterized in that, A positioning spring (5) is provided on the inner side of each of the two slots (29), and the opposite ends of the two positioning springs (5) are respectively fixedly connected to the opposite ends of the two positioning posts (3).

5. A connecting device for a rupture tube according to claim 1, characterized in that, The push plate (23) is rotatably provided with a threaded rod (6) at its top. The top end of the threaded rod (6) passes through the inner side of the placement block (21) and extends to its top. The peripheral side of the threaded rod (6) is threadedly connected to the top of the placement block (21).

6. A connecting device for a rupture tube according to claim 5, characterized in that, A rotating block (7) is provided at the top of the threaded rod (6) and above the placement block (21).