CN217384001U - Open type delay structure - Google Patents

Abstract

The utility model belongs to the technical field of civilian blasting equipment, especially, relate to an open structure of postponing. The delay structure is used for delaying ignition output, and comprises: the ignition device comprises a tube shell and a secondary ignition part, wherein a medicine cavity is coaxially arranged in the tube shell and penetrates through the tube shell along the height direction of the tube shell, so that the tube shell is of an integrated structure with the upper end and the lower end open; the secondary ignition component and the medicine cavity are coaxially arranged in the medicine cavity; the secondary ignition part is annular, and the circular through-hole in the middle of it is first fire transfer hole, and first fire transfer hole is coaxial with the medicine chamber, and the external diameter of secondary ignition part is the same with the diameter in medicine chamber. Therefore, on one hand, the secondary ignition component of the delay structure enables a semi-closed space to be formed inside the delay structure, and promotes flame to be transmitted downwards, so that the secondary ignition function is achieved; on the other hand, the reverse injection of gunpowder is blocked to prevent pressure relief, energy is gathered and is combusted downwards, and the effect of gas closing is achieved, so that the combustion interruption is avoided, and the preset function of the delay ignition device is realized.

Description

Open type delay structure

Technical Field

The utility model belongs to the technical field of civilian blasting equipment, especially, relate to an open structure of postponing.

Background

The delay structure is a delay ignition device, and the detonation flame is received mainly by the input ignition powder, so that the self-charging sequence is ignited to complete the functions of delay and reliable ignition output, and the purpose is to ensure reliable input and output and improve the delay precision. The ignition powder is a powder for igniting initiating explosive, pyrotechnic powder, propellant and propellant powder, most of the ignition powder used in practice is mixed ignition powder which mainly comprises oxidant, combustible agent and adhesive, and the ignition powder is required to have stable physical and chemical properties, is sensitive to thermal shock, has enough ignition capacity and reliable action and is filled in various ignition devices. In addition, the delay structure is also filled with delay powder which can control the delay time of an explosion sequence or a fire transfer sequence, requires accurate combustion time, has reliable action, good physical and chemical properties and low mechanical sensitivity, and is used for time fuzes, self-explosion devices, release mechanisms, delay detonators, igniters and other initiating elements to realize delay initiation or ignition.

The linear combustion property of the delay powder can form a central hole, the flame can have a back-spraying phenomenon when passing to the next-stage powder, and when the back-spraying phenomenon occurs, the conventional delay structure can burn out at a higher speed to expose in an open environment, so that the pressure is released, energy can not be accumulated to burn downwards, and the preset delay and ignition output functions can not be completed after frequent combustion interruption.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the above problems in the prior art, the utility model provides an open structure of postponing puts into the secondary ignition part on current structure of postponing basis to the technical problem of current structure of postponing disconnected fire has been solved.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

the utility model provides an open structure of postponing for postpone the ignition output, include: the secondary ignition component and the medicine cavity are coaxially arranged in the medicine cavity; the secondary ignition part is annular, and the circular through-hole in the middle of it is first fire transfer hole, and first fire transfer hole is coaxial with the medicine chamber, and the external diameter of secondary ignition part is the same with the diameter in medicine chamber.

Further, different areas are formed in the powder cavity according to the filling of powder with different actions, the area filled with input ignition powder is an input ignition powder cavity, and the input ignition powder cavity is arranged on the uppermost layer of the powder cavity; the area filled with the output ignition powder is an output ignition powder cavity which is arranged at the lowest layer of the powder cavity; the secondary ignition component is arranged between the input ignition medicine cavity and the output ignition medicine cavity.

Further, the region of filling transition ignition powder is the transition ignition powder chamber, and the secondary ignition part will pass through the ignition powder chamber and divide into a transition ignition powder chamber and a transition ignition powder two-chamber, and a transition ignition powder chamber sets up between input ignition powder chamber and secondary ignition part, and transition ignition powder two-chamber sets up between secondary ignition part and output ignition powder chamber.

Furthermore, the area filled with delay powder is a delay powder cavity which is arranged between the transition ignition powder cavity and the output ignition powder cavity.

Further, the height range of the tube shell is: 8-10mm, the external diameter is: 10 mm; the diameter range of the medicine cavity is as follows: 4-5 mm.

Further, the thickness range of the secondary ignition part is as follows: 0.1-0.2mm, the diameter range of the first fire transfer hole is as follows: 2-3 mm.

Furthermore, the filling thickness of each gunpowder is 0.5-1mm, and the amount of the input ignition powder is smaller than that of the transitional ignition powder.

Further, the lower end of the medicine cavity is also provided with a second fire transfer hole which is coaxial with the medicine cavity and has a diameter smaller than that of the medicine cavity; the diameter of the second fire transfer hole is 2.5mm, and the thickness is 1.5 mm.

Further, the input ignition powder is boron ignition powder, and the output ignition powder is black powder.

Further, the transitional ignition powder is boron series mixed powder, and the delay powder is tungsten series delay powder.

(III) advantageous effects

The utility model has the advantages that:

the utility model provides a pair of open structure of postponing, this open structure of postponing is on former product structure basis, put into the secondary ignition part in transition ignition powder, on the one hand, make the inside semi-airtight space that forms of structure of postponing, make flame pass downwards, in order to reach the function of secondary ignition, on the other hand, the secondary ignition part can block that gunpowder from spouting down and prevent the release, with the downward burning of energy gathering, the effect of closing gas is played, thereby combustion interruption has been avoided, the reliability of product postponing effect has been improved, the predetermined function of ignition device of postponing has been realized.

Drawings

FIG. 1 is a schematic diagram of an open postponed configuration;

FIG. 2 is a schematic view of a secondary ignition feature;

fig. 3 is a schematic diagram of a conventional delay structure.

[ description of reference ]

1: a pipe shell; 11: a medicine cavity; 111: inputting an ignition medicine cavity; 112: a transitional ignition charge chamber; 113: two cavities of transitional ignition powder; 114: a delay medicine cavity; 115: an ignition medicine cavity is output; 12: a second fire transfer hole;

2: a secondary ignition component; 21: the first fire transfer hole.

Detailed Description

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The utility model provides a be used for postponing and reliably ignite open structure of postponing of output, include: a tube case 1 and a secondary ignition element 2. The coaxial medicine chamber 11 that sets up in the tube 1, medicine chamber 11 link up tube 1 along the direction of height of tube 1 for open integral type structure in both ends about tube 1 forms. The height range of the envelope 1 is: 8-10mm, and the outer diameter is as follows: 10mm, the diameter range of the medicine cavity 11 is as follows: 4-5mm, the cavity 11 will form different areas according to the powder charge with different actions. In addition, two wrench grooves are arranged on the upper end surface of the tube shell 1, so that the tube shell is convenient to clamp during assembly.

The secondary ignition component 2 is arranged in the medicine cavity 11 coaxially with the medicine cavity 11. The secondary ignition part 2 is annular, the middle circular through hole is a first fire transfer hole 21, and the first fire transfer hole 21 is coaxial with the medicine cavity 11. The outer diameter of the secondary ignition element 2 is the same as the diameter of the drug cavity 11. The thickness range of the secondary ignition part 2 is: 0.1-0.2mm, the diameter range of the first fire transfer holes 21 is as follows: 2-3 mm. If the thickness of the secondary ignition part 2 is more than 0.2mm, the space for using the explosive is occupied, the delay time cannot be ensured, if the inner diameter of the first fire transfer hole 21 is less than 2mm, the flame can be blocked from being transferred to the next-level explosive, and if the inner diameter is more than 3mm, the gas-closing effect can be influenced.

In addition, the lower end of the medicine cavity 11 is also provided with a second fire transfer hole 12. The second fire transfer hole 12 is coaxial with the medicine cavity 11 and has a smaller diameter than the medicine cavity 11. The diameter of the second fire transfer holes 12 is 2.5mm and the height is 1.5 mm.

Specifically, the input ignition powder is boron-based ignition powder, and the boron-based powder can improve the burning rate and increase the maximum pressure reached by burning. The area filled with the ignition powder is an input ignition powder cavity 111, and the input ignition powder cavity 111 is arranged at the uppermost layer of the powder cavity 11. The output ignition powder is black powder, the area filled with the output ignition powder is an output ignition powder cavity 115, and the output ignition powder cavity 115 is arranged at the lowest layer of the powder cavity 11 on the upper side of the second fire transfer hole 12. The transitional ignition powder is boron mixed powder, and the area filled with the transitional ignition powder is a transitional ignition powder cavity. Wherein, the secondary ignition component 2 divides the transitional ignition powder cavity into a transitional ignition powder one cavity 112 and a transitional ignition powder two cavity 113. The transitional ignition powder first cavity 112 is arranged between the input ignition powder cavity 111 and the secondary ignition part 2, and the transitional ignition powder second cavity 113 is arranged below the secondary ignition part 2; the delay composition is a tungsten-based delay composition, the delay precision of the tungsten-based delay composition is higher, and the delay range of the tungsten-based delay composition can reach millisecond level by adjusting the granularity of tungsten powder. The area filled with delay powder is a delay powder cavity 114, and the delay powder cavity 114 is arranged between the transitional ignition powder cavity 113 and the output ignition powder cavity 115.

The filling thickness of each gunpowder is 0.5-1mm, the filling thickness adjusts each dosage according to the time delay of the actual requirement, particularly, the dosage of the input ignition powder is smaller than that of the transition ignition powder, and because the flame sensitivity of the input ignition powder is large, the flame can be transmitted to the transition ignition powder.

When the delay powder is used, detonation flame is received at an input ignition powder position, then self charge sequences are sequentially ignited, when the flame is transmitted downwards, energy can be emitted upwards, a secondary ignition part can form a semi-closed space to block the energy of the flame from being emitted out, so that the flame is transmitted downwards to achieve the function of secondary ignition, when the flame is transmitted to the delay powder, the property of the delay powder has a reverse spraying phenomenon, at the moment, the secondary ignition part can block the reverse spraying of the powder to prevent pressure relief, the energy is gathered and is combusted downwards, the effect of gas closing is achieved, the combustion interruption is avoided, the reliability of the product delay effect is improved, and the functions of delay and reliable ignition output are completed.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. An open-architecture delay structure for delaying an ignition output, the open-architecture delay structure comprising: the ignition device comprises a pipe shell (1) and a secondary ignition part (2), wherein a medicine cavity (11) is coaxially arranged in the pipe shell (1), the medicine cavity (11) penetrates through the pipe shell (1) along the height direction of the pipe shell (1), so that the pipe shell (1) forms an integrated structure with the upper end and the lower end open, and the secondary ignition part (2) and the medicine cavity (11) are coaxially arranged in the medicine cavity (11);

the secondary ignition part (2) is the annular, and the circular through-hole in centre is first fire transmission hole (21), first fire transmission hole (21) with medicine chamber (11) are coaxial, the external diameter of secondary ignition part (2) with the diameter in medicine chamber (11) is the same.

2. The open delay structure according to claim 1, wherein the explosive chamber (11) is formed into different areas according to charging of different acting explosive, the area charged with input ignition explosive is an input ignition explosive chamber (111), and the input ignition explosive chamber (111) is arranged at the uppermost layer of the explosive chamber (11); the area filled with the output ignition powder is an output ignition powder cavity (115), and the output ignition powder cavity (115) is arranged at the lowest layer of the powder cavity (11);

the secondary ignition component (2) is arranged between the input ignition explosive cavity (111) and the output ignition explosive cavity (115).

3. The open delay structure of claim 2, wherein the region filled with the transient ignition powder is a transient ignition powder chamber, the secondary ignition part (2) divides the transient ignition powder chamber into a transient ignition powder one chamber (112) and a transient ignition powder two chamber (113), the transient ignition powder one chamber (112) is disposed between the input ignition powder chamber (111) and the secondary ignition part (2), and the transient ignition powder two chamber (113) is disposed between the secondary ignition part (2) and the output ignition powder chamber (115).

4. The open delay structure of claim 3, wherein the area filled with the delay powder is a delay powder chamber (114), and the delay powder chamber (114) is disposed between the intermediate ignition powder chamber (113) and the output ignition powder chamber (115).

5. An open-ended delay structure according to claim 1, wherein the height of the envelope (1) ranges from: 8-10mm, the external diameter is: 10 mm; the diameter range of the medicine cavity (11) is as follows: 4-5 mm.

6. An open-type delay structure according to claim 1, wherein the thickness of the secondary ignition member (2) ranges from: 0.1-0.2mm, the diameter range of the first fire transfer holes (21) is as follows: 2-3 mm.

7. The open delay structure of claim 3 or 4, wherein each gunpowder is packed to a thickness of 0.5-1mm, and the amount of the input ignition charge is smaller than the amount of the transient ignition charge.

8. The open type delay structure according to claim 1, wherein a second fire transfer hole (12) is further arranged at the lower end of the medicine cavity (11), and the second fire transfer hole (12) is coaxial with the medicine cavity (11) and has a smaller diameter than the medicine cavity (11); the diameter of the second fire transfer hole (12) is 2.5mm, and the thickness is 1.5 mm.

9. The open-type delay structure of claim 2, wherein the input ignition charge is a boron-based ignition charge and the output ignition charge is black powder.

10. The open type delay structure of claim 4, wherein the transition ignition powder is a boron-based mixed powder, and the delay powder is a tungsten-based delay powder.

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