RU2312401C1 - Locking method for flexible locking-and-sealing device - Google Patents

Abstract

FIELD: ironmongery, particularly to close flexible locking-and-sealing devices using flexible members, for instance cable cuts, as closing members.

SUBSTANCE: locking method for locking-and-sealing device including body with inlet and outlet orifices for cable cut receiving, wherein the cable cut has driven end and free end, and at least one fixing member spring-loaded with pre-locking spring involves passing free cable cut end through locking unit of protected object; passing the cable cut end through inlet orifice, device interior and outlet orifice along with fixing member movement to create loop having minimal dimension; preliminarily fixing cable cut and applying force, namely impact force, to fixing member through pre-locking spring and intermediate member, for instance through separator, wherein the impact force is applied by striking thereof with pre-compressed blocking spring preliminarily fixed in initial position of device prepared for following locking, by releasing potential spring energy by pushing out blocking spring from spring holder body. Blocking spring force exceeds that of pre-locking spring. Blocking spring has axis aligned with pre-locking spring axis and inner diameter equal to that of pre-locking one.

EFFECT: increased efficiency.

5 cl, 2 dwg

Description

This invention relates generally to hardware and, in particular, to methods for locking and sealing the doors of railway cars, freight containers and vans, tank hatches, helper wheels for grain carriers, warehouses, warehouses, shops, stalls and other objects. More specifically, the invention relates to methods for locking locking and sealing devices, in which a flexible element, for example, a piece of cable, is used as a contactor.

State of the art

A known method of locking a flexible locking and sealing device containing a housing with inlet and outlet openings for a piece of cable and a through hole in a spring-loaded clip (separator, etc.) through which a piece of cable is passed. When locking the object, the latter is passed through its eyes and inserted through the inlet into the through hole (channel) of the cage, where it passes between the locking elements - rollers and then exits through the outlet. Then it is pulled up to a loop of the minimum size, thereby forcing the cable to be fixed. Then force is applied to the clip by the end of the screw by screwing the screw with the handle provided with the screw into the through threaded hole of the case until the ring groove that the screw is provided with is inserted into the threaded hole of the case. After that, the screw handle is broken off. As a result of the force impact on the clip by the end of the screw, the rollers deform the lateral surface of the cable segment, providing a guaranteed clamping force of the cable segment. Thus, the impossibility of unauthorized opening of the device is achieved (Patent RU No. 2235237, F16G 11/04, G09F 3/03).

A known method of locking a locking and sealing device, which consists in the fact that in a device having a housing with a locking element and holes for the working and passive parts of the cable segment, the passive cable section is fixed in the housing, and the working section is passed through the locking section of the housing, squeezing this section a spring-loaded locking element, freeing up the passage of the cable, after which the working section is pulled inside the housing with the formation of a loop of minimum size. After the formation of the latter, a forced force is applied to the cable in the selected direction with the cable deformation and its partial destruction. This method allows to increase the reliability of cable locking and sealing devices and to exclude the possibility of their unauthorized opening (Patent RU No. 2195712, G09F 3/03).

The technical result of the invention is the expansion of the arsenal of methods for locking flexible locking and sealing devices. Moreover, the proposed method is simpler and less time consuming.

SUMMARY OF THE INVENTION

A method of locking a flexible locking and sealing device containing a housing with inlet and outlet openings for a cable segment having a passive end and a free end, and at least one locking element spring-loaded with a pre-closure spring located in the housing cavity, which consists in guiding the protected object through the locking assembly the free end of the cable segment, passing it through the inlet, cavity and outlet with the movement of the locking element and with the formation of a loop minimum size and preliminary fixation of the cable segment and subsequent forced force on the locking element, the subsequent forced force on the locking element is carried out through the pre-closing spring by impact of the pre-compressed locking spring mounted in the housing cavity, previously fixed in the initial position of the device, prepared for locking, by releasing its potential energy, while the force of the blocking spring is superior um prior closing spring force, and with their longitudinal axis and an inner diameter of the same.

Forced force on the locking element can be carried out by impact through the pre-closing spring and an intermediate element, such as a separator, or clip, or pusher.

Forced force on the locking element can be achieved by impact by pulling out a blocking spring from the spring holder body.

As a fixing element, you can use either a ball or a roller.

As a fixing element, two rollers can be used.

Brief Description of the Drawings

Figure 1 schematically shows a flexible locking and sealing device for implementing the above method, front view;

Figure 2 is the same side view.

Preferred Embodiment

The method of locking a flexible locking and sealing device is as follows.

A piece of cable 1 having a free end 2, which can be equipped with a tip, is passed through the locking unit of the object of protection (not shown in the drawing) and introduced into the housing 3 through an inlet 4 made, for example, in the front cover 5. Then it is passed through a hole or cavity 6, formed either directly in the housing 3 itself, or in the separator, or in the carriage, clip, etc., through which at least one spring-loaded pre-closure spring 7 is engaged, which can be It executes the rotary body. In this case, two rollers 8 are used as the fixing element or elements, which are spring-loaded with said preliminary closing spring 7 through an intermediate element 9, which can be used either as a separator, or a carriage, or a holder, etc. with a rear wall provided with a protrusion. The last one wears one end of the said spring 7. When passing the free end of the cable segment through the hole 6, the spring-loaded fixing element or elements, for example rollers 8, are wrung out, freeing the passage of the cable segment. After that, the cable segment is passed (passed) through the outlet 10 formed, for example, in the back cover 11. In this case, the longitudinal axis of the hole 6, made in the intermediate element 9, coincides with the combined axis of the inlet 4 and outlet 10 of the holes. After the free end 2 of the cable segment 1 comes out, it is pulled until a minimum loop is formed in the area of the locking unit (eyes) of the security object. In this position, the cable segment under the action of the spring 7 turns out to be an automatically fixed (locked) fixing element or elements - two rollers 8, which interact with their lateral cylindrical surfaces simultaneously with the side surface of the cable segment and two opposite inner 12 inclined (working) surfaces of the housing 3 (these elements are included in the locking mechanism). Two other opposite inner surfaces of the housing are parallel (Fig. 2, item not indicated).

This concludes the stage of preliminary fixation of the cable segment. In this case, the passive end 13 of the cable segment 1 is rigidly fixed in the hole 14 of the housing 3. The latter in the cross section has the shape of a rectangle.

After that, a forced force is applied to the fixing element or elements - rollers inside the case. The force acting on the locking element or elements, for example, rollers 8 (i.e., the final fixation of the cable segment), is carried out by impact by releasing the potential energy of the compressed blocking spring 15 located on the same axis as the pre-closing spring 7, i.e. their axes coincide. In this case, the force of the blocking spring 15 exceeds the force of the spring 7 preliminary closure. Moreover, the forced force on the locking element or elements - the rollers 8 is carried out through the spring 7 of the forced circuit and the intermediate element is a separator 9, in the sockets of which the rollers are located and protrude from them. For the convenience of refueling the cable segment, the rollers are separated by stops, which ensure a guaranteed gap between them and thus facilitate the transmission of the cable segment (pos. Not indicated).

Forced closure is achieved by means of additional fixation of the locking mechanism, which moves the locking elements of the rollers 8 in the area of the internal cavity of the housing with a smaller cross section 16.

The specified mechanism includes the said locking spring 15, the spring holder 17, the spring stabilizer 18. The spring holder is made in the form of a fork installed in the holes 19, made, for example, on the side surface 20 of the housing 3. The free ends of the spring holder can enter either holes 21 made in the inner body cavity, or rely on a ledge made inside the body (not shown in the drawing).

Moreover, in the initial position of the device prepared for locking, the locking spring 15 is compressed and rests on one end on the cover 11, and on the other end on the spring holder 17, on which the other end of the pre-closing spring 7 is supported. It is preferable for better stability of the locking spring 15 to put it completely on the spring stabilizer 18, which can be made in the form of a sleeve 22 in one piece with the cover 11, and its outer diameter should be compatible with the inner diameter of the preliminary closing spring 7 and its other end should be located on the stabilizer and the butt rest on the spring holder, and the last to cover the stabilizer 18. The internal diameters of both springs coincide.

The force of the compressed blocking spring 15 on the locking element or the roller elements 8 is carried out through the pre-closure spring 7 and the rear wall of the intermediate element 9, i.e. the impact is provided by pulling the spring holder 17.

Upon impact in the spring 7, its adjacent turns are completely compressed and act on the back wall of the intermediate separator element 9, and the fixing element or elements - rollers 8 are moved to the zone with a smaller cross section 16 of the inner surface (cavity) of the housing 3, interacting with a greater force with inclined surfaces 12 of the cavity of the housing and with the side surface of the cable segment, deforming and invading it. As a result, the possibility of malicious influence on the locking mechanism through the technological gap between the inlet 4 and the surface of the cable segment 1 is excluded, including, for example, squeezing the locking elements of the rollers or the separator with any object, followed by pulling the cable segment from the housing.

Preferably, the spring holder 17 can be pulled out via a lever 23, which can be pivotally mounted on the protruding part 24 of the spring holder 17.

The external part of the spring holder protruding from the housing or the lever 23 can be prefabricated with the appropriate marking, duplicating the sealing information applied to the external surface of the housing, confirming the fact of authorized locking. The spring holder or part thereof, carrying information in accordance with the existing rules for the carriage of goods, is attached to the documents of dispatch.

Thus, the proposed method of locking is simple to implement, convenient for use and provides a high degree of protection against malicious tampering of the device.

Claims (5)

1. The method of locking a flexible locking and sealing device containing a housing with inlet and outlet openings for a piece of cable, having a passive end and a free end, and at least one locking element spring-loaded with a pre-closure spring located in the housing cavity, which consists in passing through the locking assembly of the protected object of the free end of the cable segment, passing it through the inlet, cavity and outlet with the movement of the locking element and with the formation of a loop minim size and preliminary fixation of the cable segment and subsequent forced force on the locking element, characterized in that the subsequent forced force on the locking element is carried out through the pre-closing spring by impact mounted in the body cavity pre-compressed blocking spring, pre-fixed in the initial position of the device, prepared for locking by releasing its potential energy, while the force blocking spring is superior to the force of the pre-closing spring, and their longitudinal axes and internal diameters coincide. 2. The locking method according to claim 1, characterized in that the forced force on the locking element is carried out by impact through the pre-closing spring and an intermediate element, such as a separator, or clip, or pusher. 3. The locking method according to claim 1, characterized in that the forced force on the locking element is carried out by impact by pulling out a blocking spring from the body of the spring holder. 4. The locking method according to claim 1, characterized in that either a ball or a roller is used as the locking element. 5. The locking method according to claim 1, characterized in that two rollers are used as the locking element.

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