Detonating mechanism with safety device
By introducing a limiting device into the detonation mechanism to restrict the sliding of the slider, the electric ignition tube, the propellant charge, and the flame detonator are ensured to be aligned, thus solving the problem of easy misoperation and detonation of the electric detonation mechanism and improving operational safety.
Patent Information
- Application Number
- CN202520406249.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing electric detonation mechanisms are prone to detonation due to misoperation during wiring, posing a safety hazard and potentially causing injury to operators.
Design an initiation mechanism with a safety device. By limiting the sliding of the slider through a limiting device, the electric ignition tube, the propellant charge and the flame detonator cannot be aligned with each other, ensuring that the initiation mechanism is in an explosion-proof state and avoiding accidental detonation.
It effectively prevents explosions caused by misoperation, improves operational safety, and protects operators from injury.
Smart Images
Figure CN223896713U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of blasting technique, especially a detonating mechanism with safety device. BACKGROUND
[0002] At present, in the blasting operation, the electric detonation is mostly used, and in the detonation mode, the detonating mechanism is mostly the electric detonator or the detonating mechanism with the aligned transmission sequence, and after the wiring is completed, the explosive is loaded, the mechanism is simple and direct, but has the following shortcomings:
[0003] 1. In the wiring process, the ignition structure in the detonating mechanism has the possibility of causing the ignition due to the misoperation, the aligned transmission sequence can easily cause the detonating mechanism to detonate the guide column, and the operator is harmed. UTILITY MODEL CONTENTS
[0004] Therefore, aiming at the above problems, the utility model provides a detonating mechanism with safety device.
[0005] The utility model is realized through the following technical schemes.
[0006] A detonating mechanism with safety device, including the casing, the casing is provided with the sliding passageway, the sliding passageway is provided with the sliding block, the sliding passageway is limited to have the sliding end point, the sliding passageway and the upper and lower sides of the sliding end point are provided with the electric ignition tube and the gunpowder column that align with each other, the sliding block is provided with the flame detonator, when the sliding block slides to the sliding end point, the flame detonator aligns with the gunpowder column and the electric ignition tube, the casing is provided with the limiting device acting on the sliding block, to prevent the sliding block from sliding to the sliding end point direction.
[0007] As a further improvement of the utility model, the limiting device includes a limiting member, the limiting member is movably arranged on the casing, one end of the limiting member penetrates into the sliding passageway, and the end of the limiting member that penetrates into the sliding passageway abuts against the end face of the sliding block close to the sliding end point.
[0008] As a further improvement of the utility model, the other end of the limiting member penetrates out of the casing, and the casing is provided with a first elastic member acting on the limiting member, so that the limiting member maintains the movement trend to the outside of the casing.
[0009] The side wall of the casing is provided with a limiting seat, the limiting member penetrates out of the limiting seat, the limiting seat is provided with a limiting pin shaft, and the limiting pin shaft penetrates through the limiting member along the radial direction of the limiting member, to prevent the limiting member from moving to the outside of the casing.
[0010] As a further improvement of this utility model, a second elastic element is provided on the side of the slider away from the sliding endpoint. The second elastic element acts on the slider so that the slider maintains the tendency to slide towards the sliding endpoint.
[0011] As a further improvement of this utility model, the shell is cylindrical, and the electric ignition tube and the propellant column are coaxial with the shell.
[0012] As a further improvement of this utility model, the limiting member is inserted into the sliding passage radially along the housing, and the direction in which the limiting member is inserted into the sliding passage is perpendicular to the sliding direction of the slider.
[0013] As a further improvement of this utility model, the gunpowder charge includes a guiding charge and a detonating charge, wherein the diameter of the detonating charge is larger than that of the guiding charge.
[0014] As a further improvement of this utility model, a detonating cord is provided at the bottom of the housing, and the detonating cord passes radially into the housing and abuts against the side wall of the detonating charge.
[0015] As a further improvement of this utility model, an explosion-proof base is provided inside the housing, the propellant charge is disposed inside the explosion-proof base, and the explosion-proof base is provided with an insertion channel for the detonating cord to pass through.
[0016] As a further improvement of this utility model, a weight-reducing cavity is formed between the explosion-proof base and the inner wall of the housing.
[0017] The beneficial effects of this utility model are as follows: In this utility model patent, the limiting device restricts the sliding of the slider, so that the electric ignition tube, the gunpowder column and the flame detonator cannot be aligned with each other, and the entire detonation mechanism is in an explosion-proof state, that is, the detonation can no longer be transmitted step by step, so as to avoid the detonation mechanism from being detonated due to misoperation, and thus avoid injury to the operator due to misoperation. Attached Figure Description
[0018] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:
[0019] Fig. 1 This is a schematic diagram of the structure of an embodiment of the present utility model patent;
[0020] Fig. 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model patent.
[0021] Fig. 3 This is a schematic diagram of the internal structure of the side of an embodiment of this utility model patent.
[0022] The following are labeled in the diagram: 1. Shell; 2. Sliding passage; 3. Slider; 4. Electric ignition tube; 5. Explosive charge; 6. Flame detonator; 7. Limiting element; 8. First elastic element; 9. Limiting seat; 10. Pull ring; 11. Second elastic element; 12. Detonating cord; 13. Guiding charge; 501. Expanding charge; 502. Explosion-proof seat; 14. Penetration channel; 15. Weight reduction cavity; 16. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0024] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.
[0025] refer to Figs. 1 to 3 The present utility model embodiment discloses that:
[0026] A detonation mechanism with a safety device includes a housing 1. A sliding passage 2 is provided within the housing 1, and a slider 3 is slidably disposed within the sliding passage 2. The sliding passage 2 defines a sliding endpoint. Electric ignition tubes 4 and propellant charges 5 are respectively arranged aligned above and below the sliding endpoint of the sliding passage 2. The electric ignition tubes 4 are connected to an external control circuit for controlling ignition. A flame detonator 6 is disposed within the slider 3. When the slider 3 slides to the sliding endpoint, the flame detonator 6 is aligned with the propellant charge 5 and the electric ignition tube 4. A limiting device acting on the slider 3 is provided on the housing 1 to prevent the detonation from proceeding. The slider 3 slides towards the sliding endpoint. In this embodiment, the detonation sequence is electric igniter 4 - flame detonator 6 - gunpowder charge 5, and the detonation increases step by step. Specifically, in blasting operations, it is necessary to control the electric igniter 4, flame detonator 6, and gunpowder charge 5 to align with each other in order to achieve the step-by-step transmission of detonation. However, in the initial state of this embodiment, the limiting device restricts the sliding of the slider 3, so that the electric igniter 4, gunpowder charge 5, and flame detonator 6 cannot align with each other. The entire safety mechanism is in an explosion-proof state, that is, the detonation can no longer be transmitted step by step, so as to avoid the detonation mechanism being detonated due to misoperation, thereby avoiding injury to the operator.
[0027] Specifically, the limiting device includes a limiting member 7, which is movably disposed on the housing 1. One end of the limiting member 7 is inserted into the sliding passage 2, and the end of the limiting member 7 inserted into the sliding passage 2 abuts against the end face of the slider 3 near the sliding endpoint. By controlling the movement of the limiting member 7 so that it no longer abuts against the slider 3, the slider 3 can slide towards the sliding endpoint, thereby aligning the electric ignition tube 4, the gunpowder column 5, and the flame detonator 6. The structure is simple, and the explosion-proof state is easy and convenient to release.
[0028] Specifically, in this embodiment, the other end of the limiting member 7 protrudes through the housing 1, and a first elastic member 8 is provided inside the housing 1 to act on the limiting member 7, so that the limiting member 7 maintains a tendency to move outward from the housing 1. Specifically, the first elastic member 8 is a compression spring, which is sleeved on the limiting member 7, and both ends of the compression spring abut against the inner wall of the housing 1 of the limiting member 7. In the initial state, the compression spring is in a compressed state, so that the limiting member 7 maintains a tendency to move outward from the housing 1. In addition, a limiting seat 9 is provided on the side wall of the housing 1, and the limiting member 7 protrudes through the limiting seat 9 (i.e., the limiting seat 9 is located where the limiting member 7 protrudes through the housing 1). A limiting pin 10 is passed through the limiting seat 9, and the limiting pin 10 passes radially through the limiting member 7. The limiting member 7 is used to prevent the limiting member 7 from moving out of the housing 1. Specifically, as shown in the figure, one end of the limiting pin 10 is provided with a pull ring 11. Pulling the limiting pin 10 causes the limiting pin 10 to disengage from the limiting member 7 and the limiting seat 9. At this time, the limiting member 7 can slide along its axial direction. At the same time, the first elastic member 8 releases elastic potential energy, causing the limiting member 7 to slide in its axial direction, that is, to move out of the housing 1. At this time, the end of the limiting member 7 located in the sliding passage 2 no longer abuts against the slider 3, so that the slider 3 can slide towards the sliding endpoint, that is, the electric ignition tube 4, the gunpowder column 5 and the flame detonator 6 can be aligned with each other to release the explosion-proof state. The structure is simple and the release of the explosion-proof state is simple and convenient, which is easy for the staff to control.
[0029] However, although the limiting member 7 no longer prevents the slider 3 from sliding towards the sliding endpoint, it is still necessary to control the movement of the slider 3. If the sliding is controlled manually, the efficiency is low. Therefore, in this embodiment, a second elastic member 12 is provided on the side of the slider 3 away from the sliding endpoint. The second elastic member 12 acts on the slider 3 to keep the slider 3 moving towards the sliding endpoint. Specifically, a receiving groove is provided on the side of the slider 3 away from the sliding endpoint. The second elastic member 12 is a compression spring. The compression spring is located in the receiving groove. In the initial state, the compression spring is in a compressed state, and its two ends abut against the groove wall and the inner wall of the housing 1, respectively, so that the slider 3 keeps moving towards the sliding endpoint. The structure is simple, and the slider 3 can be controlled to slide when the limiting member 7 no longer abuts against the slider 3, with a rapid response.
[0030] As shown in the figure, the housing 1 is cylindrical, and the electric ignition tube 4 and the gunpowder column 5 are coaxial with the housing 1; the limiting member 7 is inserted radially into the sliding passage 2 along the housing 1, and the direction in which the limiting member 7 is inserted into the sliding passage 2 is perpendicular to the sliding direction of the slider 3.
[0031] The propellant charge 5 includes a guiding charge 501 and a detonating charge 502, wherein the diameter of the detonating charge 502 is larger than that of the guiding charge 501, so that the detonation can be further increased step by step.
[0032] The bottom of the housing is provided with a detonating cord 13, which is inserted radially into the housing 1 and abuts against the side wall of the detonating charge 502. The detonating cord 13 can be connected to multiple explosives at the same time.
[0033] In addition, to prevent the detonating cord 13 from being accidentally ignited, as shown in the figure, an explosion-proof seat 14 is provided inside the housing 1, the explosive charge 5 is disposed inside the explosion-proof seat 14, and the explosion-proof seat 14 is provided with an insertion channel 15 for the detonating cord 13 to pass through, the detonating cord 13 passes through the insertion channel 15 and its end abuts against the bottom of the detonating charge 502.
[0034] A weight-reducing cavity 16 is formed between the explosion-proof base 14 and the inner wall of the housing 1 to reduce the weight of the detonation device.
[0035] Working principle:
[0036] In the utility model patent, in the initial state, the limiting member 7 is limited by the limiting pin 10, so that the limiting member 7 abuts against the slider 3, and the entire detonation device is in an explosion-proof state.
[0037] The detonation sequence of the initiation device is: electric igniter 4 - flame detonator 6 - guiding charge 501 - expansion charge 502 - detonating cord 13. The detonation is amplified step by step, and the detonating cord 13 can also detonate multiple explosives at the same time to achieve the effect of simultaneous detonation.
[0038] When using it for blasting operations, connect the detonating cord 13 to the explosive, and then connect the electric ignition tube 4. After completion, manually pull out the limiting pin 10. At this time, the outer limiting member 7 loses its constraint and is ejected by the first elastic member 8. At this time, the limiting member 7 releases the constraint on the slider 3. The slider 3 slides to the sliding end point by the second elastic member 12. The detonation sequence is aligned, the safety mechanism enters the ready state, and then personnel can evacuate. Ignition can be controlled by the external control line.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A detonation mechanism with a safety device, comprising a housing (1), characterized in that: The housing (1) is provided with a sliding passage (2), and a slider (3) is slidably arranged in the sliding passage (2). The sliding passage (2) defines a sliding endpoint. Electric ignition tubes (4) and gunpowder columns (5) are respectively arranged on the upper and lower sides of the sliding passage (2) at the sliding endpoint. A flame detonator (6) is arranged in the slider (3). When the slider (3) slides to the sliding endpoint, the flame detonator (6) is aligned with the gunpowder column (5) and the electric ignition tube (4). A limiting device acting on the slider (3) is provided on the housing (1) to prevent the slider (3) from sliding towards the sliding endpoint.
2. The detonation mechanism with a safety device according to claim 1, characterized in that: The limiting device includes a limiting member (7), which is movably disposed on the housing (1). One end of the limiting member (7) is inserted into the sliding passage (2), and the end of the limiting member (7) inserted into the sliding passage (2) abuts against the end face of the slider (3) near the sliding endpoint.
3. The detonation mechanism with a safety device according to claim 2, characterized in that: The other end of the limiting member (7) extends out of the housing (1), and a first elastic member (8) acting on the limiting member (7) is provided inside the housing (1) so that the limiting member (7) maintains a tendency to move outward from the housing (1); The housing (1) has a limiting seat (9) on its side wall. The limiting member (7) extends out of the limiting seat (9). The limiting seat (9) has a limiting pin (10) which passes through the limiting member (7) radially to prevent the limiting member (7) from moving out of the housing (1).
4. The detonation mechanism with a safety device according to claim 3, characterized in that: A second elastic element (12) is provided on the side of the slider (3) away from the sliding endpoint. The second elastic element (12) acts on the slider (3) so that the slider (3) maintains the tendency to slide towards the sliding endpoint.
5. The detonation mechanism with a safety device according to claim 2, characterized in that: The housing (1) is cylindrical, and the electric ignition tube (4) and the gunpowder column (5) are coaxial with the housing (1).
6. The detonation mechanism with a safety device according to claim 5, characterized in that: The limiting member (7) is inserted radially into the sliding passage (2) along the housing (1), and the direction in which the limiting member (7) is inserted into the sliding passage (2) is perpendicular to the sliding direction of the slider (3).
7. The detonation mechanism with a safety device according to claim 1, characterized in that: The propellant charge (5) includes a guide charge (501) and a detonating charge (502), wherein the diameter of the detonating charge (502) is larger than that of the guide charge (501).
8. The detonation mechanism with a safety device according to claim 7, characterized in that: The bottom of the housing (1) is provided with a detonating cord (13), which is inserted into the housing (1) radially and abuts against the side wall of the detonating charge (502).
9. The detonation mechanism with a safety device according to claim 8, characterized in that: An explosion-proof seat (14) is provided inside the housing (1), and the propellant charge (5) is provided inside the explosion-proof seat (14). The explosion-proof seat (14) is provided with an insertion channel (15) for the detonating cord (13) to pass through.
10. A detonation mechanism with a safety device according to claim 9, characterized in that: A weight-reducing cavity (16) is formed between the explosion-proof base (14) and the inner wall of the housing (1).