RU2154795C1 - Double-acting pyrotechnical relay - Google Patents

Abstract

FIELD: development of means of initiation of detonating cords with a preset delay. SUBSTANCE: the pyrotechnical a preset delay. The pyrotechnical relay consists of two delayed-action primer detonators, the percussive-wave tube connecting them is enclosed in an undeformable tube, after fastening in the retarding part of the primer detonator the ends of the percussive-wave tube are looped to its body. The ends of the detonating cords are also looped to the body of each primer detonator around the high-explosive part so that both loops would be contiguous to each other. The entire attachment is enclosed in a special fixing container having a bed for the primer detonators and a cover with lugs for fixing the loops of the cord and tube on the casings of the primer detonators. EFFECT: enhanced reliability and convenience in relay assembly. 2 cl, 1 dwg

Description

 The invention relates to the development of means for initiating detonating cords with a given time delay.

 A pyrotechnic double-acting relay is known that is made in one case, where the detonator caps (CD) are facing each other with slowing elements and are separated by a sleeve with a cavity in the form of two coaxial truncated cones mated with small bases, facing large bases towards the slowing elements of the CD. Patent No. 2074374 [1].

 The disadvantage of this device is the inability to set the deceleration times of more than 60 ms due to design features.

 Closest to the proposed is a pyrotechnic relay, protected by patent N 2124690 [2].

 The relay consists of two delayed detonator capsules with detonating cords fixed to the housing and facing each other by slowing elements, which are connected by a segment of the shock wave tube, and on each detonator capsule the detonating cord is looped around its high part so that the delay Elements are facing each other.

 The disadvantage of such a device is that the UHT segment can form a loop or a bend, which, when blown up, will lead to tube rupture and thereby failure of the system as a whole, i.e. reduces system reliability.

 The problem solved by the invention is to increase the reliability of the pyrotechnic relay.

 The problem is solved by a special structural implementation of the pyrotechnic relay.

 The essence of the invention lies in the fact that in the well-known double-acting pyrotechnic relay, consisting of two KDZ with fastening elements attached to the housing DS and facing each other, which are connected by a UHT segment, and on each KDZ DS is looped around its brisant part, each end UVT after rigid fixation in the KDZ forms an overhead loop on its body so that it is in contact with the LH loop, and the connection node of the KDZ with LH and UHT is placed in a fixing container that has a lodgement for KDZ and equipped with yshkoy with corresponding tidal for fixing UHT and LH, and the area of weakness initiating pulse UHT undeformable placed in a tube, wherein the lid for locking the convenience can be divided into two separate parts is disclosed in opposite directions. This makes it possible, reliably fixing the UVT loops on the KDZ with the appropriate cover, to transport the relays in separate packages at any distance to the place of use, where, using another cover, attach the DS to it, applying, as indicated above, a loop around the brisant part.

 The description of the device is illustrated in the drawing, where 1 is a retarding detonator capsule (KDZ), 1a is a blasting part of KDZ, 1b is a retarding part of KDZ, 2 is a detonating cord (DS), 3 is a shock wave tube (UVT), 4 is a safety tube from non-deformable material, 5 - fixing container, 6a, b - cover of the fixing container.

 Assembly and operation of the device.

 A section of UVT of the required length is placed in a tube of non-deformable material (from thick paper, plastic, etc.), the free ends are fixed in the slow-down part of the KDZ in a standard way, and then looped on the KDZ body. KDZ is placed in a fixing container and fixed with the corresponding part of the lid. Put a loop from the DS on the open blasting part of the KDZ and fix the second part of the cover. Do the same operations with the second KDZ, and a pyrotechnic relay is included in the system.

 Detonating a detonation pulse from a LH, detonating the first KDZ, initiates the process in UHT, the process in the UHT propagates at a speed of 2 km / s and reaches the incendiary element in the second KDZ, causing the KDZ to be triggered, the detonation of which initiates the superimposed DG.

 The proposed pyrotechnic relay is convenient in assembly and transportation, reliable in operation.

References
1. RF patent N 2074374, IPC F 42 B 3/10.

 2. RF patent N 2124690, IPC F 42 B 3/16 01/10/99.

Claims (2)

 1. A two-way pyrotechnic relay, consisting of two delayed detonator capsules with detonating cords fixed to the housing and facing each other with slowing elements that are connected by a segment of the shock wave tube, and on each detonator capsule a detonating cord is looped around its blasting parts, characterized in that each end of the shock wave tube is rigidly fixed in the detonator capsule and forms a loop on its body in such a way that it is in contact with the loop of the detonating w cheers compound blasting cap assembly with a detonating cord and the shock wave tube is placed in the retaining container having a tray for blasting cap and a cover with corresponding tidal for fixing the location of detonating cord loops, and a shock-wave tube.  2. The pyrotechnic relay according to claim 1, characterized in that the lid of the fixing container is divided into two parts with the possibility of opening and fixing in opposite directions.