RU206152U1 - Cumulative elongated explosive charge - Google Patents

Abstract

The utility model relates to the field of blasting operations and can be used to destroy by blasting such structures as beams, pipes, containers, etc., including under water. The cumulative elongated explosive charge contains a casing made of foamed polyurethane foam, made in the form of a rectangular prism. The housing has a lower working wall of the housing, an upper wall of the housing, two side walls of the housing and two ends of the housing. A charge of a plastic explosive is placed inside the body along its entire length. In the charge of the plastic explosive, from the side of the lower working wall of the housing, a cumulative recess is formed along the entire length. At one end of the shaped-charge elongated explosive charge, an eyelet with a retainer is attached to the end of the body. The eyelet is made with the possibility of threading through it the opposite free end of the cumulative elongated explosive charge. A system of transverse grooves is formed on the upper wall of the housing, and each groove of the system of transverse grooves is made with the possibility of docking with the latch and blocking the reverse pulling of the free end of the cumulative elongated explosive charge through the eyelet. An explosive means is additionally installed on the ear, made with the possibility of detonating a charge of a plastic explosive, and an opening tongue is located on the latch. The opening tongue is made with the possibility of withdrawing the latch from the docking with the groove of the system of transverse grooves and unlocking the reverse pulling of the free end of the cumulative elongated explosive charge through the eyelet. The utility model makes it possible to reduce the time required for attaching a cumulative elongated explosive charge to a structure intended for detonation destruction and bringing it to a state of readiness for detonation. 3 ill.

Description

This utility model relates to the field of blasting operations and can be used to destroy by blasting structures such as beams, pipes, containers, etc., including under water.

From the prior art, an elongated shaped charge is known (see patent for invention RU 2706155 C1, published - 11/14/2019), consisting of a shaped recess lining made of a heavy thin plastic material, with a profile representing a triangle in cross section and a plastic explosive charge substances in the form of strips of rectangular cross-section of a given thickness and width corresponding to the width of the lining shelf, while between the explosive charge and the cumulative lining there is a layer of explosive adhesive composition representing a solution of the same or another plastic explosive in a chlorine-containing derivative of lower alkanes. In addition, an outer shell made of a thick plastic structural material, the shape of which in section repeats the shape of the lining of the cumulative recess, can be installed from the opposite shaped-charge recess of the rear side of the charge.

The disadvantage of this technical solution is the laboriousness of fastening the charge on structures intended for destruction by blasting.

Also from the prior art it is known, taken as a prototype, a cumulative elongated explosive charge "Blade", Great Britain, (see Veremeyev Y. G. "Engineering ammunition" - "English extended charge" Blade "/ [Electronic resource], - Access mode : http://saper.isnet.ru/mines/blade.html (date of access 06/18/2021)), which is a long flexible plastic bar made of foamed polyurethane foam, inside which a charge of a plastic explosive is placed along its entire length. The shape of the charge of the plastic explosive is such that a cumulative recess is formed in its lower side. The Blade shaped elongated explosive charge is attached to the surface due to the fact that its underside is covered with a layer of sticky substance. The detonation is carried out by standard standard detonating means, tightly pressed against the cumulative elongated explosive charge "Blade" at any point.

Thus, in order to be ready for detonation, the shaped-charge extended explosive charge "Blade" must be fixed on a structure intended for destructive destruction, after which it is necessary to install an explosive device at any point of it with a tight pressure.

It should be noted that the installation of an explosive device on an already fixed on a structure intended for destruction by detonation, the cumulative elongated explosive charge "Blade" is not safe, and also reduces the likelihood of detonation when installing an explosive device with insufficient pressing density.

In addition, it is not possible to remove the cumulative extended explosive charge "Blade" from the place of its initial attachment and attach it to another surface while maintaining the initial reliability of attachment, since the layer of sticky substance becomes unusable.

The main disadvantage of the "Blade" cumulative extended explosive charge is the duration of its preparation in a state of readiness for detonation.

The technical problem to be solved by the present utility model is to create a cumulative elongated explosive charge, devoid of the above disadvantages.

The technical result provided by the present utility model consists in reducing the time required for attaching a cumulative elongated explosive charge to a structure intended for destruction by blasting and bringing it to a state of readiness for blasting.

The specified technical result is provided due to the cumulative elongated explosive charge, which contains a housing made of foamed polyurethane foam, made in the form of a rectangular prism. The housing has a lower working wall of the housing, an upper wall of the housing, two side walls of the housing and two ends of the housing. A charge of a plastic explosive is placed inside the body along its entire length. In the charge of the plastic explosive, from the side of the lower working wall of the housing, a cumulative recess is formed along the entire length. At one end of the shaped-charge elongated explosive charge, an eyelet with a retainer is attached to the end of the body. The eyelet is made with the possibility of threading through it the opposite free end of the cumulative elongated explosive charge. A system of transverse grooves is formed on the upper wall of the body. Each groove of the system of transverse grooves is made with the possibility of docking with the latch and blocking the reverse pulling of the free end of the cumulative elongated explosive charge through the eyelet. In addition, an explosive means is additionally installed on the ear, made with the possibility of detonating a charge of a plastic explosive, and an opening tongue is located on the latch. The opening tongue is made with the possibility of withdrawing the latch from the docking with the groove of the system of transverse grooves and unlocking the reverse pulling of the free end of the cumulative elongated explosive charge through the eyelet.

The design and the principle of operation of the cumulative elongated explosive charge are illustrated in the figures.

In figure 1, the cumulative elongated explosive charge is shown in the position when its free end is threaded into the eyelet and the retainer is docked with the groove of the system of transverse grooves. Dashed lines are shown for clarity.

Figure 2 shows a top view of a cumulative elongated explosive charge.

Figure 3 is a side view of a cumulative elongated explosive charge.

The cumulative elongated explosive charge contains a housing (Fig. 1, pos. 1) made of foamed polyurethane foam, made in the form of a rectangular prism. The casing (Fig. 1, pos. 1) has a lower working wall (Fig. 1, pos. 2) of the casing, an upper wall (Fig. 1, pos. 3) of the casing, two side walls (Fig. 2, pos. 4) body and two ends (Fig. 3, item 5) of the body. Inside the housing (Fig. 1, pos. 1) along its entire length there is a charge of a plastic explosive (Fig. 1, pos. 6). In the charge of a plastic explosive (Fig. 1, pos. 6), from the side of the lower working wall (Fig. 1, pos. 2) of the housing, a cumulative recess is formed along the entire length (Fig. 1, pos. 7). At one end of the cumulative elongated explosive charge, an eyelet (Fig. 1, pos. 8) with a latch (Fig. 1, pos. 9) is attached to the end of the housing. The eyelet (figure 1, pos. 8) is made with the possibility of threading through it the opposite free end of the cumulative elongated explosive charge. A system of transverse grooves is formed on the upper wall (Fig. 1, pos. 3) of the housing. Each groove of the system of transverse grooves is made with the possibility of docking with the lock (Fig. 1, pos. 9) and blocking the reverse pulling of the free end of the cumulative elongated explosive charge through the eyelet (Fig. 1, pos. 8). In addition, an explosive means (Fig. 1, pos. 10) is additionally installed on the ear (Fig. 1, pos. 8), made with the possibility of detonating a charge of a plastic explosive (Fig. 1, pos. 6), and on the latch ( Fig. 1, item 9) there is an opening tab (Fig. 1, item 11). The opening tab (Fig. 1, pos. 11) is made with the possibility of withdrawing the latch (Fig. 1, pos. 9) from the docking with the groove of the system of transverse grooves and unlocking the reverse pulling of the free end of the cumulative elongated explosive charge through the tab (Fig. 1, pos. 8).

The cumulative elongated explosive charge works as follows.

Around the structure, which must be destroyed by detonation, a cumulative elongated explosive charge is wrapped so that the lower working wall (Fig. 1, item 2) of the body adjoins the surface of the structure. The free end of the cumulative elongated explosive charge is threaded through the eyelet (Fig. 1, pos. 8). When threading the free end of the cumulative elongated explosive charge through the eyelet (Fig. 1, pos. 8), the retainer (Fig. 1, pos. 9) joins the adjacent groove of the system of transverse grooves, thereby blocking the reverse pulling of the free end of the cumulative elongated explosive charge through the eyelet (Fig. 1, pos. 8). In this case, further threading of the free end of the cumulative elongated explosive charge through the eyelet (Fig. 1, pos. 8) is not blocked and is carried out until the cumulative elongated explosive charge is fixed on the structure to be destroyed by detonation. The cumulative elongated explosive charge is brought to a state of readiness for detonation.

If necessary, remove the cumulative elongated explosive charge from the place of initial attachment and fix it on another structure, press the opening tab (Fig. 1, pos. 11), which removes the latch (Fig. 1, pos. 9) from the docking with the groove of the transverse grooves and unlocks the reverse pulling of the free end of the cumulative elongated explosive charge through the eyelet (Fig. 1, pos. 8). The free end of the cumulative elongated explosive charge is pulled out through the eyelet (Fig. 1, pos. 8) and the cumulative elongated explosive charge is removed from the place of initial attachment. After that, the cumulative elongated explosive charge is fixed on another structure. The fastening remains secure.

After bringing the cumulative elongated explosive charge into a state of readiness for detonation, they retreat to a safe distance and initiate the detonation means. Undermining occurs with the formation of a cumulative jet, the structure is destroyed.

The utility model makes it possible to reduce the time required for attaching a cumulative elongated explosive charge to a structure intended for detonation destruction and bringing it to a state of readiness for detonation.

Claims (1)

A shaped-charge elongated explosive charge containing a casing made of foamed polyurethane foam, made in the form of a rectangular prism, and having a lower working wall of the casing, an upper wall of the casing, two side walls of the casing and two ends of the casing, while inside the casing along its entire length there is a charge of a plastic explosive substances, and in the charge of a plastic explosive, from the side of the lower working wall of the housing, a cumulative recess is formed along the entire length, characterized in that an eyelet with a lock is attached to the end of the housing from one end of the cumulative elongated explosive charge, and the eyelet is made with the possibility of threading through it, the opposite free end of the cumulative elongated explosive charge, in addition, a system of transverse grooves is formed on the upper wall of the housing, and each groove of the system of transverse grooves is made with the possibility of joining with a lock and blocking the reverse pulling of the free end of the cumulative an extended explosive charge through the eyelet, in addition, an explosive device is additionally installed on the eyelet, made with the possibility of detonating a charge of a plastic explosive, and an opening tongue is located on the latch, made with the possibility of removing the latch from the docking with the groove of the system of transverse grooves and unlocking the reverse pulling the free end of the cumulative elongated explosive charge through the eyelet.

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