RU2228417C1 - Cable locking-and-sealing device - Google Patents

Abstract

FIELD: ironmongery. SUBSTANCE: invention is related to cable locking-and-sealing device including cable anchored with end and locking mechanism comprising hollow body with inlet and outlet holes for accommodation of cable and internal surface spring-loaded by separator spring with axial hole for cable, front and rear walls arranged in location seats of separator and fixing members protruding from it and interacting with their surfaces with internal surface of body and cable. Body is put on free end of cable. Protrusions are made in location seats on opposite faces in symmetry with axis of axial hole. EFFECT: enhanced functional reliability of device. 4 cl, 7 dwg

Description

The invention relates to locking devices designed to protect the doors of containers, railroad cars, tank hatches, helper wheels, grain carriers, etc. from penetration to the cargo carried by unauthorized persons or intruders.

Known cable locking and sealing device [1], containing a cable, rigidly fixed at one end, and put on a loose end of the cable locking mechanism, consisting of a housing with an internal cavity having sections with a conical and cylindrical surfaces, a lid, one-piece connected to the housing, spring-loaded separator and fixing elements protruding from it and protruding from it, interacting when locked with the inner conical surface and the cable.

A device [2] is also known, containing a cable and a locking mechanism having a spring-loaded separator, in the landing slots of which are fixed elements of the cable, worn on the free end of the cable. Grooves are made in the walls of the housing from the side of its inner conical surface along the generatrix of the cone, which prevent the separator from turning relative to the housing when trying to fold the locking mechanism from the cable.

The disadvantage of both of these devices is that the locking elements in the separator under the action of a spring on the separator inoperative almost touch each other with their surfaces.

As a result of this, in the initial stage of locking, it is necessary to make considerable efforts, skill, experience, and also unproductive to spend time on this operation in order to move the locking elements apart and tuck the cable between them.

Often this cannot be achieved the first time.

The technical result is to eliminate this drawback.

The specified technical result is achieved by the fact that in a cable locking and sealing device containing a cable, rigidly fixed at one end, and a locking mechanism that is worn on the free end of the cable, consisting of a hollow body with inlet and outlet openings for the cable and with an inner surface of a spring-loaded separator with axial hole for the cable and with the front and rear walls and the fixing elements protruding from it in the separator seats and protruding from it, interacting with their surface when Iranian with the inner surface of the housing and the cable, in the landing slots on the opposite sides of the symmetrical axis of the axial hole protrusions are made.

The distance between the protrusions is equal to or slightly less than the diameter of the axial hole, and their height is 1.5-2.5 mm

In addition, the locking elements are made in the form of bodies of revolution, for example balls or rollers. Analysis of the known technical solutions in the studied area allows us to conclude that there are no signs in them that are similar to the essential distinguishing features in the claimed device, and to recognize the claimed solution meets the criterion of "inventive step".

The invention is illustrated by drawings.

Figure 1 shows a General view of the device;

figure 2 - locking mechanism without a cable, a longitudinal section, enlarged;

figure 3 is a section along aa in figure 2;

figure 4 is a front view;

figure 5 is a rear view;

figure 6 is a cross section of a cable;

7 is an enlarged view of the front of the separator.

The cable locking and sealing device consists of a length of cable 1 and a locking mechanism 2 put on the free end of the cable, consisting of a hollow body 3 closed by covers 4 and 5, the covers being inseparably connected to the body, for example, by rolling. The internal cavity of the housing 3 has two opposite faces 6, made parallel, and the other two opposite faces 7 are located at an angle, while the angle “α” is between 18-30 °. Facets 7 are workers.

Inside the cavity of the housing 3 there is a separator 8, spring-loaded from the side of the cover 4 by means of a spring 9. In the cover 5, the separator 8 having a front 10 and a rear wall 11 and a cover 4, coaxial openings are made, respectively: input 12, axial 13 and output 14 .

The locking elements 15 in the separator 8 are installed with a guaranteed gap between them. This is achieved thanks to the protrusions 16, which are made in the landing slots to accommodate the locking elements 15.

Landing nests are located symmetrically with respect to the axis of the axial hole 13. According to the shape of the nest, they are combined: in the zone of interaction of the fixing elements 15 with the cable 1, the side faces 17 of the nests are inclined, tapering to the axis, and in the zone of interaction of the fixing elements 15 with the working faces 7 of the inner surface ( cavity) of the housing side faces 18 are made perpendicular to the axis of the axial hole 13. This eliminates the possibility of a turn in the nests of the locking elements 15, made, for example, in the form of a roll Cove or beads.

The protrusions 16 are located on oppositely lying faces symmetrically to the axis of the axial hole 13.

The distance between the protrusions 16 is equal to or slightly less than the diameter of the axial hole, and their height “h” is 1.5-2.5 mm.

In the idle state, the locking elements, relying on the protrusions, form a guaranteed clearance.

The cable 1 is fixed at one end in an opening 19 formed in the tide 20, and its free end 21 is pointed.

Cable locking and sealing device is used as follows.

The cable 1 is passed through the eyes of the locking unit and the locking mechanism 2 is put on its free end. The pointed end 21, which can be made with a tip and passing through the inlet 12 in the cover 5 and the axial hole 13, due to the guaranteed clearance between the locking elements 15 (rollers ) formed by protrusions 16 fits freely between the locking elements. Further advancement of the pointed end 21 of the cable requires only small efforts to move the locking elements apart.

The separator 8 under the action of this force compresses the spring 9 and moves in the inner cavity of the housing 3 from the section 22 with a smaller cross section to the section 23 with a large cross section, while the separator contacts the parallel faces with the parallel faces 6. The fixing elements 15 (rollers) exit the axial hole 13 in the separator, freeing the passage of the cable 1 into the outlet 14 of the cover 4, and begin to interact with the working faces 7.

Due to the implementation of the side faces 18 in the specified area perpendicular to the axis of the axial hole 13, the rollers do not rotate in the separator, which provides easy movement of the rollers along the working faces 1 of the inner cavity of the housing.

After the loop of the cable is selected and the locking mechanism 2 approaches the eyes, the latter slightly pulls back. The locking elements 15, interacting with a cylindrical surface when locking with the working faces 7 of the inner surface of the housing and the cable, are slightly immersed in the cable. When you try to force extraction of the cable 1 from the locking mechanism 2, it captures rollers under the action of friction, which, together with the separator 8, passing from the section 23 with a large cross section of the internal cavity of the housing into the section 22 with a smaller cross section, begin to lock the cable 1 with a greater force Moreover, the greater the force exerted on the cable 1, the further the locking elements 15 (rollers) together with the separator 8 move to the side with a smaller cross section of the inner cavity of the housing 3, the lower the locking electrons elements 15 inside the axial bore of the separator 8 and the more they lock the cable 1.

The proposed device is technologically advanced in manufacture and reliably protects the load.

Various changes may be made to a preferred embodiment of the invention regarding the shape, size, type and arrangement of elements within the being, as well as the scope of the invention defined by the claims. In particular, the housing can be made all-metal (in the form of a glass), and the cable segment is rigidly fastened with a tip (an additional detail is not shown in the drawing), on which information with the individual device number, railway code, year of manufacture and trademark can be applied.

Sources of information

1. US patent No. 3994521, NKI 292-319.

2. RF patent No. 2132575, MKI G 09 F 3/03.

Claims (4)

1. A cable locking and sealing device containing a cable rigidly fixed at one end and a locking mechanism worn on the free end of the cable, consisting of a hollow body with inlet and outlet openings for the cable and with an inner surface, spring-loaded separator spring with an axial hole for the cable and with front and rear walls and located in the landing slots of the separator and the fixing elements protruding from it, interacting with their surface when locked with the inner surface of the housing and the cable, from characterized in that in the landing nests on opposite sides of the symmetrical axis of the axial hole protrusions are made. 2. The device according to claim 1, characterized in that the distance between the protrusions is equal to or less than the diameter of the axial hole. 3. The device according to claim 1, characterized in that the height of the protrusions is 1.5-2.5 mm 4. The device according to claim 1, characterized in that the locking elements are made in the form of bodies of revolution, for example balls or rollers.

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