RU208625U1 - Protective seal - Google Patents

Abstract

The utility model relates to a protective seal for household appliances and is intended for visual indication of the facts of unauthorized access to the object of protection and exposure to electromagnetic field waves. The utility model is aimed at increasing the protection of sealing from external intentional impact due to the possibility of displaying electromagnetic effects. The protective seal includes an insert connected by a flexible leash to the body. The body is made with a deaf castle cavity. The inner side walls of the housing contain stops engaged with the locking tabs of the insert. The body and the insert are provided with coaxial through holes for threading the sealing wire. The insert contains a magnetically sensitive sticker with applied identification symbols. The front outer wall of the housing includes a lens located opposite the magnetically sensitive sticker. On the side outer surfaces of the housing there are influxes. The body contains a cap, and the insert contains a cover with an internal ledge. The seal is made of optically transparent polymeric material. 4 w.p. f-ly, 3 ill.

Description

The utility model relates to sealing devices, namely to a protective seal for household appliances, and is intended for visual indication of the facts of unauthorized access to the object of protection and exposure to electromagnetic field waves. The utility model can be used for sealing various objects equipped with devices for monitoring and metering household resources: water, electricity, coolant, used with sealing wire, including those with magnetically sensitive structural elements.

The most common methods of access to protected objects after unauthorized destruction (changes in readings) of the installed original sealing devices during opening are substitution, i.e. replacement of installed original sealing devices with similar, similar in basic features (shape, design, color, marking, etc.) with original ones, and fake, i.e. changing the markings or other protective elements of the replaced sealing devices to ensure their similarity to the original ones. Resistance to substitution and forgery is one of the main functional characteristics of a sealing device, which determines its consumer (protective) properties and sealing reliability.

The simplest and most common method of operational control of the integrity of sealing devices is a visual inspection. The integrity of sealing devices intended for use with sealing wire is determined, first of all, by the impossibility of removing the sealing wire without destroying the structural elements of the sealing devices or breaking the wire itself.

The proposed utility model relates to a group of sealing devices, namely a protective seal made of a polymeric material using a sealing wire as a flexible enclosing element, and designed to indicate the facts of unauthorized access to protected objects by visually identifying the integrity of the protective elements of sealing devices.

From the prior art, a sealing device is known, consisting of a body that contains a blind cavity, in the upper part of which there is a hole, and its side surfaces contain at least two stops, and a motion limiter, which are located in the blind cavity from the side of the hole, at the same time, the front and opposite end surfaces contain two holes each, which are located coaxially, and a fixing element, the side surfaces of which contain at least two elastic teeth, which are directed along the movement of the fixing element, and one end of the fixing element contains a cover , which overlaps the plane of the hole, and the opposite end contains a slot, the inlet of which is located on the side of the base of the fixing element, and the hole contains stops, and both ends of the fixing element, which are formed by the slot, are spring-loaded by a flat compression spring, which, on the side of the base of the blind cavity, contains m rod, one end of which extends beyond the spring boundary, and the opposite end contains a wedge-shaped end and contains holes that are located on the same axis with the holes, and a flexible shackle (RU 2516805, G09F 3/03, 05/20/2014).

The disadvantage of the specified sealing device is the possibility of extracting the locking element without destroying it or breaking the sealing element.

Also known is a control seal made of a polymeric material, containing a body with a cavity open on one of its sides and an insert installed in the body cavity with the possibility of longitudinal movement, in the form of a retainer plate and a transverse crossbar placed on the outside of the body, while on the inner side locking petals are made on the walls of the housing, and on the side faces of the latch there are reciprocal locking petals, made with the possibility of elastic or elastic-plastic deformation during the longitudinal movement of the insert and interacting with the supporting ribs of the housing, through holes are made in the front sides of the housing for passing the sealing wire (RU 103217, G09F 3/03, 03/27/2011).

The specified seal also does not fully eliminate the possibility of extracting the insert without destroying it during unauthorized opening.

A well-known indicator seal contains a housing connected to the housing by means of a flexible element, a valve, which consists of a cover and a locking element with a protective comb, on which one-sided springy teeth are made, while in the center of the locking element a rectangular cutout is made, and on the outer or inner part of the seal body is coated with a destructible layer of chlorine derivatives of hydrocarbons or dichloromethane (RU 155523, G09F 3/00, 10.10.2015).

The disadvantage of the seal is the possibility of its unauthorized opening by mechanically bending the springy teeth from the side of the cover without destroying them.

By the combination of essential features, a seal is accepted as the closest analogue, characterized by the fact that it contains a body with a lock cavity with the possibility of placing an insert in it, designed to fix the sealing wire in the lock cavity and made on both sides of it with anchor petals that engage with protrusions formed in the lock cavity by the walls of the body, having holes for the passage of the sealing wire, made with the possibility of coaxial location of the through holes in the insert and thinning to destroy the insert when trying to extract it (RU 2581817, G09F 3/00, 04/20/2016).

The specified seal has a sufficient level of protection against the known methods of mechanical opening, but is not protected from substitution and electromagnetic influence.

The proposed utility model is aimed at solving the problem of creating a protective seal that eliminates the above disadvantages by providing increased protection against mechanical opening, forgery, substitution, as well as from the effects of a magnetic field on the protected object.

The technical result consists in increasing the protection of the sealing against external deliberate influence.

The increase in protection is expressed in the ability of the device to display the electromagnetic effect on the object of protection, and this effect is ensured due to the fact that in the inventive protective seal the insert contains a magnetically sensitive sticker with identification symbols applied, and the front outer wall of the housing includes a lens located opposite the magnetically sensitive stickers.

The proposed protective seal includes an insert connected by a flexible leash to the body. The body is made with a deaf castle cavity. The inner side walls of the housing contain stops engaged with the locking tabs of the insert. The body and the insert are provided with coaxial through holes for threading the sealing wire. The insert contains a magnetically sensitive sticker. The sticker is a strip with identification symbols printed on a magnetically sensitive layer on the front side and an adhesive layer on the reverse side. The front outer wall of the housing includes a lens located opposite the magnetically sensitive sticker.

The body contains a head, and the insert contains a cover with an internal ledge.

The seal is made of optically transparent polymeric material.

The essence of the utility model is illustrated in Fig. 1-3 showing:

fig. 1 - protective seal before installation on the object of protection, view from the side of the lens;

fig. 2 - protective seal after installation on the protected object, side view;

fig. 3 - protective seal after installation on the protected object, side view (enlarged).

The protective seal consists of a body 1 and an insert 2 connected by a flexible element 3 into a single structure.

The designations in Fig. 1-3:

1 - body;

2 - insert;

3 - flexible element;

4 - body head;

5 - through holes in the body for threading the sealing wire;

6 - sagging on the outer side surfaces of the body;

7 - lens on the front outer wall of the housing;

8 - internal stops of the body;

9 - plate for applying identification information;

10 - elastic lock tabs of the insert;

11 - through holes in the insert for threading the sealing wire;

12 - cavity in the lower part of the insert for placing a magnetically sensitive sticker;

13 - internal deaf cavity of the body;

14 - side grooves of the body;

15 - side grooves of the insert;

16 - protrusions in the internal cavity of the housing;

17 - insert thinning (upper);

18 - insert thinning (lower);

19 - horizontal stop:

20 - insert cover;

21 - sealing wire;

22 - inner ledge of the cover.

The body 1 contains an inner blind cavity 13 intended to accommodate the insert 2. The cavity 13 in the upper part of the body 1 contains a cap 4, which completely includes the cover 20 of the insert 2, preventing its mechanical removal.

The inner side walls of the housing 1 contain symmetrically located stops 8 engaged with symmetrically located elastic locking tabs 10 of the insert 2.

On the o6ex outer side surfaces of the body 1 along their entire length there are influxes 6 in the form of an extended dihedral pyramid. The sags are designed to prevent the use of a special opening tool.

In the front and rear walls of the housing 1 there are through holes 5 for threading the sealing wire 21.

Below the holes 5 in the internal cavity of the body 1, there are ledges 16 in the form of steps, which provide deformation (bending) of the sealing wire 21 at eight points at a right angle with the insert 2 fully pushed (latched) into the body 1.

The lower part of the housing 1 is made in the form of a flat plate 9 made by two-component casting. Plate 9 provides the possibility of applying a much larger amount of identification information while increasing protection against substitution and forgery. The lower part of the plate 9 has a thickening in the form of a horizontal stop 19 for ease of installation of the sealing device, including in low light conditions, which ensures ergonomic use of the proposed device.

The insert 2 contains in the upper part a cover 20 with an internal ledge 22, completely recessed into the upper head 4 of the cavity of the body 1, which ensures the reliability of sealing by eliminating the possibility of using a mechanical tool to open the cover.

The upper part of the insert 2 under the cover 20 is made with two pairs of thinnings 17 (upper) and 18 (lower), which break when trying to extract the insert or pull out the sealing wire.

The insert 2 contains through holes 11 coaxial to the holes 5 on the body, designed for the passage of the sealing wire.

Unlike the closest analogue, in order to increase the protection of sealing due to the visual identification of electromagnetic effects, in the lower part of the insert 2, from the side facing the front outer wall of the housing 1, there is a cavity 12 designed to accommodate a magnetically sensitive sticker (not shown in Fig. ) with identification characters. The sticker is made in the form of a flat rectangular strip with a certain graphic image on the magnetically sensitive layer on the front side and an adhesive layer on the reverse side, placed in the insert cavity. When exposed to a magnetic field with a value that can distort the readings of the meter (object of protection), the graphic image on the magnetically sensitive layer is irreversibly distorted, which makes it possible to visually identify the fact of interference in the operation of the meter.

The front outer wall of the housing 1 contains a round ground lens 7 with a diameter equal to the width of the housing, providing at least a twofold increase in the graphic image deposited on the magnetically sensitive layer. During installation, the lens 7 is located opposite the magnetically sensitive sticker located in the cavity 12. The lens allows detailed visual control of the integrity of the antimagnetic sticker, as well as the location and condition of the sealing wire inside the case.

The body, insert and flexible connecting leash are made of optically transparent polymeric material. The housing and the insert are made as a single element connected by a flexible wire, which excludes the possibility of incorrect installation of the insert into the housing. In addition, the execution of the housing and the insert as a single element makes it possible to apply identification marking only on the housing.

Installation of the seal on the object of protection is carried out as follows.

In the cavity 12 of the insert 2 is placed a magnetically sensitive sticker with a certain graphic image. The insert 2 is inserted into the blind cavity 13 of the housing 1 and pushed inwards by pressing until the through holes 5 in the housing coincide with the holes 11 in the insert 2 to the depth of two elastic locking tabs 10.

The loop of the sealing wire 21 covers the sealing unit of the protected object, the ends of the sealing wire are threaded through the holes 5 in the body 1 and the holes 11 in the insert 2 or are tucked into the side grooves 14 of the body and the grooves 15 of the insert, after which the insert 2 by further pressing moves inside the body 1 to the full depth until the cavity of the body 13 is completely closed. As a result, the sealing wire 21 is tightly pressed against the inner surfaces and protrusions 16 of the body 1 and insert 2, which ensures its reliable fixation, thus preventing the sealing wire from being pulled out of the body, and the graphic image on the magnetically sensitive The sticker is exactly under the lens 7 of the body 1, allowing even in low light conditions to reveal the fact of exposure to the sealing device of the electromagnetic field.

The use of the proposed protective seal allows you to increase the resistance of sealing devices to substitution and forgery; prevent unauthorized access to the protected object by replacing and forging original sealing devices; promptly, without the use of special equipment, to detect the fact of unauthorized access to the protected object.

Claims (5)

1. The protective seal includes an insert connected by a flexible leash to the body, which is made with a blind lock cavity, the inner side walls of the body contain stops engaged with the locking tabs of the insert, while the body and insert are provided with coaxial through holes for threading the sealing wire, which differs in that the insert contains a magnetically sensitive sticker with applied identification symbols, and the front outer wall of the housing includes a lens located opposite the magnetically sensitive sticker. 2. A seal according to claim 1, characterized in that the sticker is a strip with identification symbols applied on a magnetically sensitive layer on the front side and an adhesive layer on the reverse side. 3. A protective seal according to claim 1, characterized in that the lower part of the body, made in the form of a flat plate, is intended for applying identification information and is made by a two-component casting method. 4. A protective seal according to claim 1, characterized in that the body contains a head, and the insert contains a cover with an internal ledge. 5. A protective seal according to claim 1, characterized in that it is made of an optically transparent polymeric material.

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