RU2404340C1 - Flexible locking-sealing device - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: device comprises a body 1 with a through channel 2 to locate a section of a rope 3. The passive end 4 of the rope is rigidly fixed to the body 1. At least one spring-loaded stop element 5 arranged in the body. The stop element may fix the rope section 3 as the free rope end 6 moves towards output opening 7. Protective device for prevention of unauthorised access inside the body is arranged over the inlet opening 8, it is fixed against displacement in transverse direction relative to its axis and includes a process hole 9. The protective device is arranged in the form of a metal plate 10. The process hole 9 is arranged with flanging 11 along its contour with the diametre that is equal to at least the diametre of the rope section. Depending on the body shape, the metal plate may be arranged as rectangular, round, etc. The metal plate 10 may be fixed in the body together with the cover having the input hole 8. The metal plate 10 may be closed with a safety plate having an auxiliary hole, diametre of which is equal to at least the diametre of the rope section.

EFFECT: increased extent of sealing and locking device protection against unauthorised opening.

3 cl, 5 dwg

Description

FIELD OF THE INVENTION

This invention relates generally to hardware and, in particular, to devices 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 locking and sealing devices (ZPUs), in which a flexible element, for example, a piece of rope, equipped with a means of preventing unauthorized access to the inside of the housing through structural gaps between the rope and the inlet (outlet) hole is used as a contactor.

State of the art

Known means to prevent unauthorized access to the inside of the ZPU housing, described in patent RU No. 12275 (G09F 3/03). It is made in the form of a washer mounted in the housing above the inlet with the possibility of rotation around a piece of rope. In this case, the shape of the hole of the washer coincides with the shape of the cross section of the rope. This is the so-called washer with a profile hole or profile washer.

Closest to the proposed is a means of preventing unauthorized access to the inside of the housing, described in patent RU No. 2147089 (F16G 11/04), which is also made in the form of a washer with a profile hole, but located on the body above the inlet. The washer is fixed against displacement in the transverse direction relative to the axis of the inlet. The fixation is provided by a spring-loaded latch located inside the housing, interacting with the locking mechanism of the ZPU in a state prepared for locking.

The use of washers with a profile hole somewhat complicates the unauthorized access of any tool inside the case. But at the same time, they also create a problem in that during the initial passage of the rope segment there are difficulties associated with the need to orient the rope segment relative to the protrusions of the washer.

In addition, the disadvantage of the prototype should include the complexity of fixing the washer from displacement in the transverse direction.

The technical result of the proposed invention is to eliminate these drawbacks and increase the degree of protection of the ZPU from its unauthorized opening.

SUMMARY OF THE INVENTION

Ensuring the technical result is achieved due to the fact that in a flexible locking and sealing device containing a housing with a passage channel for accommodating a piece of rope, the passive end of which is rigidly connected with the housing, at least one spring-loaded locking element placed in the housing with the possibility of fixing a piece of rope when moving its free end towards the outlet, and located above the inlet, fixed from displacement in the transverse direction relative to its axis, a protective means to prevent unauthorized access to the inside of the housing, including a technological hole, according to the invention, the protective means is made in the form of a metal plate, and the technological hole is made with a flange along its contour with a diameter equal to at least the diameter of the rope segment.

And also the fact that the metal plate is fixed in the housing together with a cover having an inlet.

And also the fact that the metal plate is closed with a safety plate with an auxiliary hole, the diameter of which is equal to at least the diameter of the segment of the rope.

Below the invention is illustrated by way of example with the accompanying drawings.

Brief Description of the Drawings

Figure 1 shows the proposed ZPU, General view;

figure 2-5 fragmentary depicts a view of figure 1 with various embodiments of the housing and the location of the protective equipment.

Preferred Embodiment

A flexible locking and sealing device comprises a housing 1 with a passage channel 2 for accommodating a segment of a rope 3, the passive end 4 of which is rigidly connected with the housing 1, at least one spring-loaded locking element 5, which is placed in the housing with the possibility of fixing a segment of the rope 3 when moving it the free end 6 in the direction of the outlet 7, and located above the inlet 8, fixed from displacement in the transverse direction relative to its axis, a protective means to prevent unauthorized access inside the body comprising locating hole 9. According to the invention the protective means is a metal plate 10, and the process opening 9 adapted eyelet 11 on its contour a diameter equal to at least the diameter of the rope length.

Depending on the form of execution of the body, the metal plate can be made in the form of a rectangular, round, etc.

In this case, the metal plate 10 can be fixed in the housing together with the cover 12 having an inlet 8 (Figure 2).

In addition, the metal plate 10 can be closed by a safety plate 13 with an auxiliary hole 14, the diameter of which is equal to at least the diameter of the segment of the rope (Figures 3 and 4).

In particular cases of the invention, the metal plate 10 can be located (placed) on the housing:

- recessed in it (Figure 1);

- protruding above it (Figure 5);

- protruding above it and closed by a safety plate (Figure 3);

- recessed in it and covered with a safety plate (also recessed in the housing);

- fixed together with the cover (Figure 2).

In addition, the metal plate 10 can be placed in a recess (annular groove, groove, etc.) made in the safety plate (not shown).

The fastening of the metal plate and the safety plate can be carried out in various ways and means, including gluing, resistance welding, etc.

In order to fully guarantee a minimum clearance between the length of the rope 3 and the flanged hole 9, in each case, the diameter of the length of the rope 3 is checked along its entire length (or only its free end), after which the flanging operations are performed with a tool of the appropriate size.

On the housing there is a place for applying a control identification marking.

The device is used as follows.

When locking, the free end 6 of the rope segment is sequentially passed through the holes of the eyes of the locking object, the auxiliary hole 14 of the safety plate 13 (if any), the technological hole 9 in the metal plate 10 and the passage channel 2.

The free end begins to interact with the spring-loaded locking element 5, squeezing it to the side, freeing the passage for the rope segment 3. The resulting loop of the rope segment is tightened to form a minimum loop. With the cessation of the application of force on the segment of the rope, the locking element 5 reliably fixes it in this position. And since the technological gaps between the segment of the rope 3 and the technological hole 9 from the inlet side are made with minimum values (tolerances), the introduction of any tool into the body is excluded, and therefore, the contact of the tool with the locking element is also excluded.

To exclude criminal effects on the locking element through the outlet 7 of the housing (cover), a metal plate 10 with a flanged hole 9 can be mounted on the lower side of the housing (Figure 1, pos.not marked).

The authorized opening of the device is carried out by biting a piece of rope with a special tool.

Thus, the invention allows to increase the degree of protection of the ZPU from its unauthorized opening.

Claims (3)

1. Flexible locking and sealing device containing a housing with a passage channel for accommodating a segment of the rope, the passive end of which is rigidly connected to the housing, at least one spring-loaded locking element placed in the housing with the possibility of fixing the segment of the rope when moving its free end to the side the outlet, and located above the inlet, fixed from displacement in the transverse direction relative to its axis, a protective means to prevent unauthorized access l the case, including a technological hole, characterized in that the protective means is made in the form of a metal plate, and the technological hole is made with a flange along its contour with a diameter equal to at least the diameter of the rope segment. 2. The device according to claim 1, characterized in that the metal plate is fixed in the housing together with a cover having an inlet. 3. The device according to claim 1, characterized in that the metal plate is closed by a safety plate with an auxiliary hole, the diameter of which is equal to at least the diameter of the segment of the rope.

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