RU2291940C1 - Locking-and-sealing device with twist member - Google Patents

Abstract

FIELD: mechanical engineering, particularly locking devices for railroad, motor and other transport to protect doors, containers and tank hatches, as well as hopper car wheels and so on against tamper.

SUBSTANCE: device comprises body with orifice and rope end fastened in the orifice. Device also has through channel for free rope end passage and threaded orifice made in the body and extending at an angle to the channel. The threaded orifice is adapted to receive twist member including removable part and fixing head with sharpened end surface. The fixing head is composite and provided with longitudinal blind hole to receive insert. Insert is made of material having hardness exceeding that of fixing head material. The insert comprises sharpened ends and has longitudinal knurling on side surface thereof. The insert is pressed into the blind hole of the head. Removable part of twist member may be formed as kink. The insert has several steps. Insert end from removable handle side has smaller diameter.

EFFECT: increased locking ability due to improved rope clamping in the body, prevention of fixing head drilling out or damage thereof by thump.

7 cl, 4 dwg

Description

The invention relates to the field of engineering, in particular, to locking devices used in railway, automobile and other types of transport for protecting doors, containers, tank hatches, helms of hopper cars, etc. from unauthorized entry.

Known seal-constipation, consisting of a housing with two holes and one threaded hole intersecting one of these holes, a closure in the form of a flexible rope element passed through these holes, and a latch lock made in the form of a screw with a rotary handle or a screw with a threaded a section located in the threaded hole of the housing and a section following it with a reduced (weakened) cross section (US 4342477, class B 65 D 55/02, 1986).

A disadvantage of the known seal is its low resistance to force and insufficient locking.

The closest solution in technical essence to the proposed invention is a monoblock seal with a twist, including a housing with a hole and a rope end fixed therein, a through channel for passing the free end of the rope and a threaded hole located at an angle to it in the housing for placement of a twist in it from the detachable part in the form of a bent handle, a pointed locking head and a groove between them, while the hardness of the locking head is higher than the hardness of the material of which the housing is made (RU 0 038695, class B 60 R 11/00, 2004).

A disadvantage of the known design is its lack of reliability, due to the fact that when locking a one-piece seal, premature fracture of the twist in the groove location zone is possible, due to its fragility, due to the high hardness of the material of the locking head and the adjacent zone. As a result, the rope will not be sufficiently pinched by the locking head. In addition, the locking head can be drilled with the help of special drills or, due to its fragility, split with the help of, for example, a tap or punch, and the rope can be easily removed from the body of the one-piece seal.

The technical result of the proposed invention, namely the locking and sealing device with a twist, is to increase the reliability of locking due to the strong clamping of the rope in the housing, eliminating the possibility of drilling the locking head and its destruction with a strong impact.

The technical result is achieved in that the locking and sealing device with a twist comprises a housing with a hole and a rope end fixed therein, a through channel for passing the free end of the rope and a threaded hole located at an angle to it in the housing for accommodating a twist consisting of a detachable part and a locking head with a pointed end surface.

The locking head is made integral, for which a longitudinal blind hole is made in it from the end side, into which an insert is made, made of a material whose hardness is higher than the hardness of the material of the locking head.

The insert is made with pointed ends, longitudinal knurling is made on its lateral surface, and it is pressed into the longitudinal blind hole of the locking head.

The detachable part of the twist is made, for example, in the form of a lamb or a curved handle.

The insert is made stepwise, while its end part from the side of the detachable handle is made with a smaller diameter.

The insert is made of hardened steel or pressed powder metals.

The implementation of the locking head compound, i.e. with an insert made of a material whose hardness is higher than the hardness of the material of the locking head, provides a significant increase in locking reliability due to the strong clamping of the rope in the housing. This is achieved by the fact that the twist itself is made of ordinary steel, for example, grade St.3, which has high strength and does not collapse when twisted, even when significant efforts are applied. When you try to drill the locking head, the insert will scroll together with the drill in a longitudinal blind hole, and its pointed end will deepen into the rope with the formation of a "buccal". In addition, the insert made of solid material can further increase the depth of its introduction into the rope. An attempt to destroy the insert using strong shocks will not lead to a decrease in the locking reliability, since during impact, the locking head will increase in diameter and this will ensure its jamming in the threaded hole of the housing.

The implementation of the insert from the detachable part with a pointed end, as well as with a smaller diameter, reduces the possibility of drilling, as the drill will slide off the inclined part of the insert, which further increases the reliability of locking the device.

The presence of longitudinal knurling on the side surface of the insert and its pressing in the longitudinal blind hole makes it difficult to remove the insert from the locking head.

The execution of the detachable part of the twist in the form of a bent handle or lamb and the manufacture of an insert made of hardened steel or pressed powder metals extends, respectively, the range of used parts and materials.

The invention is illustrated by drawings, where:

figure 1 shows a General view with a partial section;

figure 2 is a view of the spin with a partial section;

figure 3 is a view of the insert;

figure 4 is a view of the detachable part of the spin.

The locking and sealing device with a twist includes a housing 1, an opening 2 for rigidly fixing the end of the rope 3 therein, a through channel 4, a threaded hole 5, a twist 6, consisting of a detachable part 7 and a locking head 8, between which a groove 9 can be made.

In the locking head 8, a longitudinal blind hole 10 is made to accommodate the insert 11, which has pointed ends 12 and 13 and a longitudinal knurling 14.

The end part 15 of the insert 11 from the side of the groove 9 can be made with a smaller diameter.

Detachable part 7 of the twist 6 is made in the form of a bent handle 7 or lamb 16.

Lock-sealing device with a twist is assembled as follows. Previously, an insert 11 is pressed into the longitudinal blind hole 10 of the locking head 8. One of the ends of the cable 3 is inserted into the hole 2 and fixed therein by crimping, for example, by plastic deformation of the housing section 1. Then, a twist 6 with the locking head is partially screwed into the threaded hole 5 8 and insert 11, so that the insert does not exit into the through channel 4.

Locking and sealing device with a twist is hung on the locking unit of the car, car, container or other similar object as follows. The free end of the rope 3 is passed through the eyes of the locking unit (not shown in the drawing) and then pulled through the through channel 4, after which it is tightened, forming a loop of minimum size, which is fixed in the housing 1 by means of an insert 11 and a locking head 8 screwed into the threaded hole 5 all the way.

The length of the locking head 8 is chosen so that as a result of breaking off the detachable part 7 of the twist 6 over a weakened section after wrapping the locking head 8 all the way into the rope, the locking head was completely inside the threaded hole 5 and, thereby, the possibility of turning the locking head 8 out completely from the threaded hole 5.

Removing the locking and sealing device from the eyes of the locking unit is carried out by biting the rope at any point of the loop with the help of pliers "Sentinels" or other similar devices.

Claims (7)

1. A locking and sealing device with a twist, comprising a housing with an opening and an end of the rope fixed therein, a through channel for passing the free end of the rope and a threaded hole located at an angle to it in the housing for accommodating a twist consisting of a detachable part and a locking head with a pointed end surface, characterized in that the locking head is made integral, for which a longitudinal blind hole is made in it, in which an insert is installed, the hardness of the material of which is higher than the hardness lock head material. 2. Lock-sealing device with a twist according to claim 1, characterized in that the opposite end face of the insert is made pointed. 3. Lock-sealing device with a twist according to claim 1, characterized in that longitudinal knurling is made on the side surface of the insert. 4. The locking and sealing device with a twist according to claim 1, characterized in that the insert is pressed into the longitudinal blind hole of the locking head. 5. Lock-sealing device with a twist according to claim 1, characterized in that the detachable part of the twist is made in the form of a lamb. 6. Lock-sealing device with a twist according to claim 1, characterized in that the insert is made stepwise, while its end part from the side of the detachable handle is made with a smaller diameter. 7. Locking and sealing device with a twist according to claim 1, characterized in that the insert is made of hardened steel or pressed powder metals.

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